-
41 Pretsch, Paul
[br]b. 1808 Vienna, Austriad. 1873 Vienna, Austria[br]Austrian printer and inventor of photogalvanography, one of the earliest commercial photomechanical printing processes.[br]The son of a goldsmith, Pretsch learned the printing trade in Vienna, where he worked until 1831. He then took up a series of posts in Germany, Belgium and Holland before returning to Vienna, where in 1842 he joined the Imperial State Printing Office. The office was equipped with a photographic studio, and Pretsch was encouraged to explore applications of photography to printing and the graphic arts. In 1851 he was sent to London to take responsibility for the Austrian printing exhibits of the Great Exhibition. This event proved to be a significant international show case for photography and Pretsch saw a great number of recent innovations and made many useful contacts. On returning to Vienna, he began to develop a process for producing printing plates from photographs. Using Talbot's discovery that bichromated gelatine swells in water after exposure to light, he electrotyped the relief image obtained. In 1854 Pretsch resigned from his post in Vienna and travelled back to London, where he patented his process, calling it photogalvanography. He went on to form a business, the Photo-Galvano-Graphic Company, to print and market his pictures.The Photographic Manager of the company was the celebrated photographer Roger Fenton, recently returned from his exploits on the battlefields of the Crimea. In 1856 the company issued a large serial work, Photographic Art Treasures, illustrated with Pretsch's pictures, which created considerable interest. The venture did not prove a commercial success, however, and although further plates were made and issued, Fenton found other interests to pursue and Pretsch was left to try to apply some of his ideas to lithography. This too had no successful outcome, and in 1863 Pretsch returned to Vienna. He was reappointed to a post at the Imperial State Printing Office, but his health failed and he made no further progress with his processes.[br]Bibliography9 November 1854, British patent no. 2,373. 11 August 1855, British patent no. 1,824.Further ReadingJ.M.Eder, 1945, History of Photography, trans. E. Epstean, New York.H.Gernsheim and A.Gernsheim, 1969, The History of Photography, rev. edn, London. H.J.P.Arnold, 1977, William Henry Fox Talbot, London (an account of the relationship with Talbot's process).JW -
42 Swan, Sir Joseph Wilson
[br]b. 31 October 1828 Sunderland, Englandd. 27 May 1914 Warlingham, Surrey, England[br]English chemist, inventor in Britain of the incandescent electric lamp and of photographic processes.[br]At the age of 14 Swan was apprenticed to a Sunderland firm of druggists, later joining John Mawson who had opened a pharmacy in Newcastle. While in Sunderland Swan attended lectures at the Athenaeum, at one of which W.E. Staite exhibited electric-arc and incandescent lighting. The impression made on Swan prompted him to conduct experiments that led to his demonstration of a practical working lamp in 1879. As early as 1848 he was experimenting with carbon as a lamp filament, and by 1869 he had mounted a strip of carbon in a vessel exhausted of air as completely as was then possible; however, because of residual air, the filament quickly failed.Discouraged by the cost of current from primary batteries and the difficulty of achieving a good vacuum, Swan began to devote much of his attention to photography. With Mawson's support the pharmacy was expanded to include a photographic business. Swan's interest in making permanent photographic records led him to patent the carbon process in 1864 and he discovered how to make a sensitive dry plate in place of the inconvenient wet collodian process hitherto in use. He followed this success with the invention of bromide paper, the subject of a British patent in 1879.Swan resumed his interest in electric lighting. Sprengel's invention of the mercury pump in 1865 provided Swan with the means of obtaining the high vacuum he needed to produce a satisfactory lamp. Swan adopted a technique which was to become an essential feature in vacuum physics: continuing to heat the filament during the exhaustion process allowed the removal of absorbed gases. The inventions of Gramme, Siemens and Brush provided the source of electrical power at reasonable cost needed to make the incandescent lamp of practical service. Swan exhibited his lamp at a meeting in December 1878 of the Newcastle Chemical Society and again the following year before an audience of 700 at the Newcastle Literary and Philosophical Society. Swan's failure to patent his invention immediately was a tactical error as in November 1879 Edison was granted a British patent for his original lamp, which, however, did not go into production. Parchmentized thread was used in Swan's first commercial lamps, a material soon superseded by the regenerated cellulose filament that he developed. The cellulose filament was made by extruding a solution of nitro-cellulose in acetic acid through a die under pressure into a coagulating fluid, and was used until the ultimate obsolescence of the carbon-filament lamp. Regenerated cellulose became the first synthetic fibre, the further development and exploitation of which he left to others, the patent rights for the process being sold to Courtaulds.Swan also devised a modification of Planté's secondary battery in which the active material was compressed into a cellular lead plate. This has remained the central principle of all improvements in secondary cells, greatly increasing the storage capacity for a given weight.[br]Principal Honours and DistinctionsKnighted 1904. FRS 1894. President, Institution of Electrical Engineers 1898. First President, Faraday Society 1904. Royal Society Hughes Medal 1904. Chevalier de la Légion d'Honneur 1881.Bibliography2 January 1880, British patent no. 18 (incandescent electric lamp).24 May 1881, British patent no. 2,272 (improved plates for the Planté cell).1898, "The rise and progress of the electrochemical industries", Journal of the Institution of Electrical Engineers 27:8–33 (Swan's Presidential Address to the Institution of Electrical Engineers).Further ReadingM.E.Swan and K.R.Swan, 1968, Sir Joseph Wilson Swan F.R.S., Newcastle upon Tyne (a detailed account).R.C.Chirnside, 1979, "Sir Joseph Swan and the invention of the electric lamp", IEEElectronics and Power 25:96–100 (a short, authoritative biography).GWBiographical history of technology > Swan, Sir Joseph Wilson
-
43 Voigtländer, Peter Wilhelm Friedrich
SUBJECT AREA: Photography, film and optics[br]b. 1812 Vienna, Austria d. 1878[br]Austrian manufacturer of the first purpose-designed photographic objective; key member of a dynasty of optical instrument makers.[br]Educated at the Polytechnic Institute in Vienna, Voigtländer travelled widely before taking over the family business in 1837. The business had been founded by Voigtländer's grandfather in 1756, and was continued by his father, Johann Friedrich, the inventor of the opera glass, and by the 1830s enjoyed one of the highest reputations in Europe. When Petzval made the calculations for the first purpose-designed photographic objective in 1840, it was inevitable that he should go to Peter Voigtländer for advice. The business went on to manufacture Petzval's lens, which was also fitted to an all-metal camera of totally original design by Voigtländer.The Petzval lens was an extraordinary commercial success and Voigtländer sold specimens all over the world. Unfortunately Petzval had no formal agreement with Voigtländer and made little financial gain from his design, a fact which was to lead to dispute and separation; the Voigtländer concern continued to prosper, however. To meet the increasing demand for his products, Peter Voigtländer built a new factory in Brunswick and closed the business in Vienna. The closure is seen by at least one commentator as the death blow to Vienna's optical industry, a field in which it was once preeminent. The Voigtländer dynasty continued long after Peter's death and the name enjoyed a reputation for high-quality photographic equipment well into the twentieth century.[br]Principal Honours and DistinctionsHereditary Peerage bestowed by the Emperor of Austria 1868.Further ReadingL.W.Sipley, 1965, Photography's Great Inventors, Philadelphia (a brief biography). J.M.Eder, 1945, History of Photography, trans. E.Epstean, New York.JWBiographical history of technology > Voigtländer, Peter Wilhelm Friedrich
-
44 system
1) система || системный3) вчт операционная система; программа-супервизор5) вчт большая программа6) метод; способ; алгоритм•system halted — "система остановлена" ( экранное сообщение об остановке компьютера при наличии серьёзной ошибки)
- CPsystem- H-system- h-system- hydrogen-air/lead battery hybrid system- Ksystem- Lsystem- L*a*b* system- master/slave computer system- p-system- y-system- Δ-system -
45 Baekeland, Leo Hendrik
[br]b. 14 November 1863 Saint-Martens-Latern, Belgiumd. 23 February 1944 Beacon, New York, USA[br]Belgian/American inventor of the Velox photographic process and the synthetic plastic Bakélite.[br]The son of an illiterate shoemaker, Baekeland was first apprenticed in that trade, but was encouraged by his mother to study, with spectacular results. He won a scholarship to Gand University and graduated in chemistry. Before he was 21 he had achieved his doctorate, and soon afterwards he obtained professorships at Bruges and then at Gand. Baekeland seemed set for a distinguished academic career, but he turned towards the industrial applications of chemistry, especially in photography.Baekeland travelled to New York to further this interest, but his first inventions met with little success so he decided to concentrate on one that seemed to have distinct commercial possibilities. This was a photographic paper that could be developed in artificial light; he called this "gas light" paper Velox, using the less sensitive silver chloride as a light-sensitive agent. It proved to have good properties and was easy to use, at a time of photography's rising popularity. By 1896 the process began to be profitable, and three years later Baekeland disposed of his plant to Eastman Kodak for a handsome sum, said to be $3–4 million. That enabled him to retire from business and set up a laboratory at Yonkers to pursue his own research, including on synthetic resins. Several chemists had earlier obtained resinous products from the reaction between phenol and formaldehyde but had ignored them. By 1907 Baekeland had achieved sufficient control over the reaction to obtain a good thermosetting resin which he called "Bakélite". It showed good electrical insulation and resistance to chemicals, and was unchanged by heat. It could be moulded while plastic and would then set hard on heating, with its only drawback being its brittleness. Bakelite was an immediate success in the electrical industry and Baekeland set up the General Bakelite Company in 1910 to manufacture and market the product. The firm grew steadily, becoming the Bakélite Corporation in 1924, with Baekeland still as active President.[br]Principal Honours and DistinctionsPresident, Electrochemical Society 1909. President, American Chemical Society 1924. Elected to the National Academy of Sciences 1936.Further ReadingJ.Gillis, 1965, Leo Baekeland, Brussels.A.R.Matthis, 1948, Leo H.Baekeland, Professeur, Docteur ès Sciences, chimiste, inventeur et grand industriel, Brussels.J.K.Mumford, 1924, The Story of Bakélite.C.F.Kettering, 1947, memoir on Baekeland, Biographical Memoirs of the National Academy of Sciences 24 (includes a list of his honours and publications).LRD -
46 Bennett, Charles Harper
SUBJECT AREA: Photography, film and optics[br]b. 1840 Clapham, London, Englandd. 1927 Sydney, Australia[br]English inventor of the "ripening" technique for increasing the sensitivity of gelatine silver halide emulsions.[br]The son of a hatter, Bennett studied medicine and was interested in mechanical devices, chemistry and later photography. An interior view shown at a South London Photographic Society meeting in March 1878 prompted requests for details of Bennett's procedure, and these were published almost immediately. It involved heating gelatine silver bromide for extremely long periods with an excess of silver bromide. The resulting emulsion had greatly enhanced sensitivity. This "ripening" process proved to be a major advance in the development of modern photographic emulsions. It was not patented and was soon widely adopted. Bennett's process became a key factor in the establishment of a new industry, the mass production of gelatine dry plates.[br]Bibliography1878, British Journal of Photography (29 March): 146; and 21 March 1879:71 (first published details of Bennett's process).Further ReadingH.Gernsheim and A.Gernsheim, 1969, The History of Photography, rev. edn, London.JWBiographical history of technology > Bennett, Charles Harper
-
47 Carbutt, John
SUBJECT AREA: Photography, film and optics[br]b. 1832 Sheffield, Englandd. 1905 Philadelphia, Pennsylvania, USA[br]Anglo-American photographer and photographic manufacturer.[br]Carbutt emigrated in 1853 from England to the United States, where he remained for the rest of his life. He began working as a photographer in Chicago, where he soon earned a considerable reputation and became the official photographer for the Canadian Pacific Railway. In 1870 he purchased the American rights of Woodbury's photomechanical printing process and established a business to produce Woodburytypes in Philadelphia. In 1879 Carbutt set up the first successful gelatine halide dry-plate factory in America. A year later he was elected first President of the Photographers' Association of America. He began experimenting with flexible film supports in 1884 and was the first to produce satisfactory flat films on celluloid commercially. The first kinetoscope film strips used by Thomas Edison were supplied by Carbutt. Carbutt's celluloid films were exported to Europe, where nothing comparable was available at the time. He was also a pioneer manufacturer of orthochromatic plates, X-ray plates and photographic colour filters.[br]Further ReadingObituary, 1905, Journal of the Franklin Institute: 461–3. L.W.Shipley, 1965, Photography's Great Inventors, Philadelphia.G.Hendricks, 1961, The Edison Motion Picture Myth (makes reference to aspects of Carbutt's work on celluloid).JW -
48 Ives, Frederic Eugene
SUBJECT AREA: Photography, film and optics[br]b. 17 February 1856 Litchfield, Connecticut, USAd. 27 May 1937 Philadelphia, Pennsylvania, USA[br]American printer who pioneered the development of photomechanical and colour photographic processes.[br]Ives trained as a printer in Ithaca, New York, and became official photographer at Cornell University at the age of 18. His research into photomechanical processes led in 1886 to methods of making halftone reproduction of photographs using crossline screens. In 1881 he was the first to make a three-colour print from relief halftone blocks. He made significant contributions to the early development of colour photography, and from 1888 he published and marketed a number of systems for the production of additive colour photographs. He designed a beam-splitting camera in which a single lens exposed three negatives through red, green and blue filters. Black and white transparencies from these negatives were viewed in a device fitted with internal reflectors and filters, which combined the three colour separations into one full-colour image. This device was marketed in 1895 under the name Kromskop; sets of Kromograms were available commercially, and special cameras, or adaptors for conventional cameras, were available for photographers who wished to take their own colour pictures. A Lantern Kromskop was available for the projection of Kromskop pictures. Ives's system enjoyed a few years of commercial success before simpler methods of making colour photographs rendered it obsolete. Ives continued research into colour photography; his later achievements included the design, in 1915, of the Hicro process, in which a simple camera produced sets of separation negatives that could be printed as dyed transparencies in complementary colours and assembled in register on paper to produce colour prints. Later, in 1932, he introduced Polychrome, a simpler, two-colour process in which a bipack of two thin negative plates or films could be exposed in conventional cameras. Ives's interest extended into other fields, notably stereoscopy. He developed a successful parallax stereogram process in 1903, in which a three-dimensional image could be seen directly, without the use of viewing devices. In his lifetime he received many honours, and was a recipient of the Royal Photographic Society's Progress Medal in 1903 for his work in colour photography.[br]Further ReadingB.Coe, 1978, Colour Photography: The First Hundred Years, London J.S.Friedman, 1944, History of Colour Photography, Boston. G.Koshofer, 1981, Farbfotografie, Vol. I, Munich.E.J.Wall, 1925, The History of Three-Colour Photography, Boston.BC -
49 Lumière, Auguste
SUBJECT AREA: Photography, film and optics[br]b. 19 October 1862 Besançon, Franced. 10 April 1954 Lyon, France[br]French scientist and inventor.[br]Auguste and his brother Louis Lumière (b. 5 October 1864 Besançon, France; d. 6 June 1948 Bandol, France) developed the photographic plate-making business founded by their father, Charles Antoine Lumière, at Lyons, extending production to roll-film manufacture in 1887. In the summer of 1894 their father brought to the factory a piece of Edison kinetoscope film, and said that they should produce films for the French owners of the new moving-picture machine. To do this, of course, a camera was needed; Louis was chiefly responsible for the design, which used an intermittent claw for driving the film, inspired by a sewing-machine mechanism. The machine was patented on 13 February 1895, and it was shown on 22 March 1895 at the Société d'Encouragement pour l'In-dustrie Nationale in Paris, with a projected film showing workers leaving the Lyons factory. Further demonstrations followed at the Sorbonne, and in Lyons during the Congrès des Sociétés de Photographie in June 1895. The Lumières filmed the delegates returning from an excursion, and showed the film to the Congrès the next day. To bring the Cinématographe, as it was called, to the public, the basement of the Grand Café in the Boulevard des Capuchines in Paris was rented, and on Saturday 28 December 1895 the first regular presentations of projected pictures to a paying public took place. The half-hour shows were an immediate success, and in a few months Lumière Cinématographes were seen throughout the world.The other principal area of achievement by the Lumière brothers was colour photography. They took up Lippman's method of interference colour photography, developing special grainless emulsions, and early in 1893 demonstrated their results by lighting them with an arc lamp and projecting them on to a screen. In 1895 they patented a method of subtractive colour photography involving printing the colour separations on bichromated gelatine glue sheets, which were then dyed and assembled in register, on paper for prints or bound between glass for transparencies. Their most successful colour process was based upon the colour-mosaic principle. In 1904 they described a process in which microscopic grains of potato starch, dyed red, green and blue, were scattered on a freshly varnished glass plate. When dried the mosaic was coated with varnish and then with a panchromatic emulsion. The plate was exposed with the mosaic towards the lens, and after reversal processing a colour transparency was produced. The process was launched commercially in 1907 under the name Autochrome; it was the first fully practical single-plate colour process to reach the public, remaining on the market until the 1930s, when it was followed by a film version using the same principle.Auguste and Louis received the Progress Medal of the Royal Photographic Society in 1909 for their work in colour photography. Auguste was also much involved in biological science and, having founded the Clinique Auguste Lumière, spent many of his later years working in the physiological laboratory.[br]Further ReadingGuy Borgé, 1980, Prestige de la photographie, Nos. 8, 9 and 10, Paris. Brian Coe, 1978, Colour Photography: The First Hundred Years, London ——1981, The History of Movie Photography, London.Jacques Deslandes, 1966, Histoire comparée du cinéma, Vol. I, Paris. Gert Koshofer, 1981, Farbfotografie, Vol. I, Munich.BC -
50 Marey, Etienne-Jules
[br]b. 5 March 1830 Beaune, Franced. 15 May 1904 Paris, France[br]French physiologist and pioneer of chronophotography.[br]At the age of 19 Marey went to Paris to study medicine, becoming particularly interested in the problems of the circulation of the blood. In an early communication to the Académie des Sciences he described a much improved device for recording the pulse, the sphygmograph, in which the beats were recorded on a smoked plate. Most of his subsequent work was concerned with methods of recording movement: to study the movement of the horse, he used pneumatic sensors on each hoof to record traces on a smoked drum; this device became known as the Marey recording tambour. His attempts to study the wing movements of a bird in flight in the same way met with limited success since the recording system interfered with free movement. Reading in 1878 of Muybridge's work in America using sequence photography to study animal movement, Marey considered the use of photography himself. In 1882 he developed an idea first used by the astronomer Janssen: a camera in which a series of exposures could be made on a circular photographic plate. Marey's "photographic gun" was rifle shaped and could expose twelve pictures in approximately one second on a circular plate. With this device he was able to study wing movements of birds in free flight. The camera was limited in that it could record only a small number of images, and in the summer of 1882 he developed a new camera, when the French government gave him a grant to set up a physiological research station on land provided by the Parisian authorities near the Porte d'Auteuil. The new design used a fixed plate, on which a series of images were recorded through a rotating shutter. Looking rather like the results provided by a modern stroboscope flash device, the images were partially superimposed if the subject was slow moving, or separated if it was fast. His human subjects were dressed all in white and moved against a black background. An alternative was to dress the subject in black, with highly reflective strips and points along limbs and at joints, to produce a graphic record of the relationships of the parts of the body during action. A one-second-sweep timing clock was included in the scene to enable the precise interval between exposures to be assessed. The fixed-plate cameras were used with considerable success, but the number of individual records on each plate was still limited. With the appearance of Eastman's Kodak roll-film camera in France in September 1888, Marey designed a new camera to use the long rolls of paper film. He described the new apparatus to the Académie des Sciences on 8 October 1888, and three weeks later showed a band of images taken with it at the rate of 20 per second. This camera and its subsequent improvements were the first true cinematographic cameras. The arrival of Eastman's celluloid film late in 1889 made Marey's camera even more practical, and for over a decade the Physiological Research Station made hundreds of sequence studies of animals and humans in motion, at rates of up to 100 pictures per second. Marey pioneered the scientific study of movement using film cameras, introducing techniques of time-lapse, frame-by-frame and slow-motion analysis, macro-and micro-cinematography, superimposed timing clocks, studies of airflow using smoke streams, and other methods still in use in the 1990s. Appointed Professor of Natural History at the Collège de France in 1870, he headed the Institut Marey founded in 1898 to continue these studies. After Marey's death in 1904, the research continued under the direction of his associate Lucien Bull, who developed many new techniques, notably ultra-high-speed cinematography.[br]Principal Honours and DistinctionsForeign member of the Royal Society 1898. President, Académie des Sciences 1895.Bibliography1860–1904, Comptes rendus de l'Académie des Sciences de Paris.1873, La Machine animale, Paris 1874, Animal Mechanism, London.1893, Die Chronophotographie, Berlin. 1894, Le Mouvement, Paris.1895, Movement, London.1899, La Chronophotographie, Paris.Further Reading1905, Travaux de l'Association de l'Institut Marey, Paris. Brian Coe, 1981, History of Movie Photography, London.——1992, Muybridge and the Chronophotographers, London. Jacques Deslandes, 1966, Histoire comparée du cinéma, Vol. I, Paris.See also: Demenÿ, GeorgesBC / MG -
51 Ponton, Mungo
SUBJECT AREA: Photography, film and optics[br]b. 1801 Balgreen, Scotlandd. 1880 Clifton, England[br]Scottish discoverer of the light sensitivity of potassium bichromate.[br]Employed as Secretary of the Bank of Scotland, Ponton was an amateur photographer and described details of experiments on the effect of light on potassium bichromate in May 1839, only months after the announcement of the first practicable photographic processes. In a paper communicated to the Society of Arts for Scotland (of which he was Vice-President), Ponton suggested that paper soaked in a solution of potassium bichromate could be used as a cheap substitute for paper coated with silver salts. Although Ponton's descriptions were received with interest, potassium bichromate was not widely employed at the time; his work was to be exploited later, however, in the development of permanent photographic and photomechanical printing processes.[br]BibliographyFor the original announcement of Ponton's work, see Edinburgh New Philosophical Journal 1839, p. 169.Further ReadingJ.M.Eder, 1945, History of Photography, trans. E.Epstean, New York.H.Gernsheim and A.Gernsheim, 1969, The History of Photography, rev. edn, London.JW -
52 Talbot, William Henry Fox
SUBJECT AREA: Photography, film and optics[br]b. 11 February 1800 Melbury, Englandd. 17 September 1877 Lacock, Wiltshire, England[br]English scientist, inventor of negative—positive photography and practicable photo engraving.[br]Educated at Harrow, where he first showed an interest in science, and at Cambridge, Talbot was an outstanding scholar and a formidable mathematician. He published over fifty scientific papers and took out twelve English patents. His interests outside the field of science were also wide and included Assyriology, etymology and the classics. He was briefly a Member of Parliament, but did not pursue a parliamentary career.Talbot's invention of photography arose out of his frustrating attempts to produce acceptable pencil sketches using popular artist's aids, the camera discura and camera lucida. From his experiments with the former he conceived the idea of placing on the screen a paper coated with silver salts so that the image would be captured chemically. During the spring of 1834 he made outline images of subjects such as leaves and flowers by placing them on sheets of sensitized paper and exposing them to sunlight. No camera was involved and the first images produced using an optical system were made with a solar microscope. It was only when he had devised a more sensitive paper that Talbot was able to make camera pictures; the earliest surviving camera negative dates from August 1835. From the beginning, Talbot noticed that the lights and shades of his images were reversed. During 1834 or 1835 he discovered that by placing this reversed image on another sheet of sensitized paper and again exposing it to sunlight, a picture was produced with lights and shades in the correct disposition. Talbot had discovered the basis of modern photography, the photographic negative, from which could be produced an unlimited number of positives. He did little further work until the announcement of Daguerre's process in 1839 prompted him to publish an account of his negative-positive process. Aware that his photogenic drawing process had many imperfections, Talbot plunged into further experiments and in September 1840, using a mixture incorporating a solution of gallic acid, discovered an invisible latent image that could be made visible by development. This improved calotype process dramatically shortened exposure times and allowed Talbot to take portraits. In 1841 he patented the process, an exercise that was later to cause controversy, and between 1844 and 1846 produced The Pencil of Nature, the world's first commercial photographically illustrated book.Concerned that some of his photographs were prone to fading, Talbot later began experiments to combine photography with printing and engraving. Using bichromated gelatine, he devised the first practicable method of photo engraving, which was patented as Photoglyphic engraving in October 1852. He later went on to use screens of gauze, muslin and finely powdered gum to break up the image into lines and dots, thus anticipating modern photomechanical processes.Talbot was described by contemporaries as the "Father of Photography" primarily in recognition of his discovery of the negative-positive process, but he also produced the first photomicrographs, took the first high-speed photographs with the aid of a spark from a Leyden jar, and is credited with proposing infra-red photography. He was a shy man and his misguided attempts to enforce his calotype patent made him many enemies. It was perhaps for this reason that he never received the formal recognition from the British nation that his family felt he deserved.[br]Principal Honours and DistinctionsFRS March 1831. Royal Society Rumford Medal 1842. Grand Médaille d'Honneur, L'Exposition Universelle, Paris, 1855. Honorary Doctorate of Laws, Edinburgh University, 1863.Bibliography1839, "Some account of the art of photographic drawing", Royal Society Proceedings 4:120–1; Phil. Mag., XIV, 1839, pp. 19–21.8 February 1841, British patent no. 8842 (calotype process).1844–6, The Pencil of Nature, 6 parts, London (Talbot'a account of his invention can be found in the introduction; there is a facsimile edn, with an intro. by Beamont Newhall, New York, 1968.Further ReadingH.J.P.Arnold, 1977, William Henry Fox Talbot, London.D.B.Thomas, 1964, The First Negatives, London (a lucid concise account of Talbot's photograph work).J.Ward and S.Stevenson, 1986, Printed Light, Edinburgh (an essay on Talbot's invention and its reception).H.Gernsheim and A.Gernsheim, 1977, The History of Photography, London (a wider picture of Talbot, based primarily on secondary sources).JWBiographical history of technology > Talbot, William Henry Fox
-
53 Tournachon, Gaspard Félix (Nadar)
SUBJECT AREA: Photography, film and optics[br]b. 1820d. 1910 Paris, France[br]French photographer and photographic innovator, pioneer of balloon photography.[br]He began his photographic career as a daguerreotypist and at an early date called himself "Nadar", the name by which he was known for the rest of his life. Between 1855 and 1858 he made captive balloon ascents with the idea of producing a topographic map of Paris from aerial photographs. Nadar was also one of the first photographers to take successful photographs with the aid of artificial illuminants; using Bunsen batteries to power electric arc lamps, he was able to take views of the underground catacombs in Paris during 1861 and 1862. This exercise captured the imagination of the Paris public, and Nadar's work was widely acclaimed. In December 1863 he exhibited portraits taken by electric light, and later used magnesium illuminants to photograph underground canal construction. For many years Nadar practised as a photographer with his son Paul, a relationship that was sometimes stormy. Paul eventually took the name Nadar for himself and was, in turn, to become one of France's most celebrated photographers.[br]Bibliography29 October 1858, British patent no. 2,425 (balloon photography).Further ReadingJ.M.Eder, 1945, History of Photography, trans. E.Epstean, New York.H.Gernsheim and A.Gernsheim, 1969, The History of Photography, rev. edn, London.JWBiographical history of technology > Tournachon, Gaspard Félix (Nadar)
-
54 PIN
1) Общая лексика: персональный код2) Медицина: Provider Identification Number, интраэпителиальная неоплазия предстательной железы (prostatic intraepithelial neoplasia), penile intraepithelial neoplasia (интраэпителиальная неоплазия полового члена)3) Американизм: Personal Identity Number4) Военный термин: PACOM Intelligence Net, Personal Increment Number, Personnel Item Number, Photographic Intelligence Note, Preliminary Imagery Nomination File, personal injury notice, plan identification number, private identification number, program identification number, proposal identification number, publication index number6) Шутливое выражение: Prostatic Intraepithelial Neoplasia7) Бухгалтерия: Project Identification Number8) Оптика: positive-intrinsic-negative9) Телекоммуникации: Positive-Intrinsic-Negative (Fiber Optics, SONET)10) Сокращение: Personal Identification Number (password), Police Information Network, Positive-Intrinsic-Negative (semiconductor), Precision Inertial Navigation, part or identification number, positive-intrinsic-negative (transistor)11) Физиология: Pain In The Neck, Prostate Intraepithelial Neoplasia12) Вычислительная техника: procedure interrupt negative, Personal Identification Number (Banking, ICC), Processor Independent Netware (Novell, HP, DEC, Apple, Sun), Personal Internet Name (RFC 3042), сигнал негативного прерывания процедуры13) Связь: personal identification14) Банковское дело: личный идентификационный номер (personal identification number)15) Экология: товарный код, товарный шифр17) Деловая лексика: Performance Index Number, Product Identification Number, Property Index Number, (Periodic Indicative Notice) Периодическое показательное уведомление18) Сетевые технологии: Processor Independent NetWare, пароль для доступа к системе, персональный идентификационный номер, персональный код пользователя19) Автоматика: pinion20) Полупроводники: p-type Insulator n-type21) Океанография: Pacific Island network22) Расширение файла: Personal Identification Number, Game data (Epic Pinball), Process Identification Number (Unix)23) Автодорожное право: Pan-American Institute of Highways, Панамериканский автодорожный институт24) Электротехника: position indicator25) Майкрософт: ПИН26) Общественная организация: People In Need27) NYSE. A M F Bowling, Inc.28) Профсоюзы: Postal Index Number29) Дактилоскопия: средство идентификации, личный номер (Personal Identification Number) -
55 PiN
1) Общая лексика: персональный код2) Медицина: Provider Identification Number, интраэпителиальная неоплазия предстательной железы (prostatic intraepithelial neoplasia), penile intraepithelial neoplasia (интраэпителиальная неоплазия полового члена)3) Американизм: Personal Identity Number4) Военный термин: PACOM Intelligence Net, Personal Increment Number, Personnel Item Number, Photographic Intelligence Note, Preliminary Imagery Nomination File, personal injury notice, plan identification number, private identification number, program identification number, proposal identification number, publication index number6) Шутливое выражение: Prostatic Intraepithelial Neoplasia7) Бухгалтерия: Project Identification Number8) Оптика: positive-intrinsic-negative9) Телекоммуникации: Positive-Intrinsic-Negative (Fiber Optics, SONET)10) Сокращение: Personal Identification Number (password), Police Information Network, Positive-Intrinsic-Negative (semiconductor), Precision Inertial Navigation, part or identification number, positive-intrinsic-negative (transistor)11) Физиология: Pain In The Neck, Prostate Intraepithelial Neoplasia12) Вычислительная техника: procedure interrupt negative, Personal Identification Number (Banking, ICC), Processor Independent Netware (Novell, HP, DEC, Apple, Sun), Personal Internet Name (RFC 3042), сигнал негативного прерывания процедуры13) Связь: personal identification14) Банковское дело: личный идентификационный номер (personal identification number)15) Экология: товарный код, товарный шифр17) Деловая лексика: Performance Index Number, Product Identification Number, Property Index Number, (Periodic Indicative Notice) Периодическое показательное уведомление18) Сетевые технологии: Processor Independent NetWare, пароль для доступа к системе, персональный идентификационный номер, персональный код пользователя19) Автоматика: pinion20) Полупроводники: p-type Insulator n-type21) Океанография: Pacific Island network22) Расширение файла: Personal Identification Number, Game data (Epic Pinball), Process Identification Number (Unix)23) Автодорожное право: Pan-American Institute of Highways, Панамериканский автодорожный институт24) Электротехника: position indicator25) Майкрософт: ПИН26) Общественная организация: People In Need27) NYSE. A M F Bowling, Inc.28) Профсоюзы: Postal Index Number29) Дактилоскопия: средство идентификации, личный номер (Personal Identification Number) -
56 Pin
1) Общая лексика: персональный код2) Медицина: Provider Identification Number, интраэпителиальная неоплазия предстательной железы (prostatic intraepithelial neoplasia), penile intraepithelial neoplasia (интраэпителиальная неоплазия полового члена)3) Американизм: Personal Identity Number4) Военный термин: PACOM Intelligence Net, Personal Increment Number, Personnel Item Number, Photographic Intelligence Note, Preliminary Imagery Nomination File, personal injury notice, plan identification number, private identification number, program identification number, proposal identification number, publication index number6) Шутливое выражение: Prostatic Intraepithelial Neoplasia7) Бухгалтерия: Project Identification Number8) Оптика: positive-intrinsic-negative9) Телекоммуникации: Positive-Intrinsic-Negative (Fiber Optics, SONET)10) Сокращение: Personal Identification Number (password), Police Information Network, Positive-Intrinsic-Negative (semiconductor), Precision Inertial Navigation, part or identification number, positive-intrinsic-negative (transistor)11) Физиология: Pain In The Neck, Prostate Intraepithelial Neoplasia12) Вычислительная техника: procedure interrupt negative, Personal Identification Number (Banking, ICC), Processor Independent Netware (Novell, HP, DEC, Apple, Sun), Personal Internet Name (RFC 3042), сигнал негативного прерывания процедуры13) Связь: personal identification14) Банковское дело: личный идентификационный номер (personal identification number)15) Экология: товарный код, товарный шифр17) Деловая лексика: Performance Index Number, Product Identification Number, Property Index Number, (Periodic Indicative Notice) Периодическое показательное уведомление18) Сетевые технологии: Processor Independent NetWare, пароль для доступа к системе, персональный идентификационный номер, персональный код пользователя19) Автоматика: pinion20) Полупроводники: p-type Insulator n-type21) Океанография: Pacific Island network22) Расширение файла: Personal Identification Number, Game data (Epic Pinball), Process Identification Number (Unix)23) Автодорожное право: Pan-American Institute of Highways, Панамериканский автодорожный институт24) Электротехника: position indicator25) Майкрософт: ПИН26) Общественная организация: People In Need27) NYSE. A M F Bowling, Inc.28) Профсоюзы: Postal Index Number29) Дактилоскопия: средство идентификации, личный номер (Personal Identification Number) -
57 pin
1) Общая лексика: персональный код2) Медицина: Provider Identification Number, интраэпителиальная неоплазия предстательной железы (prostatic intraepithelial neoplasia), penile intraepithelial neoplasia (интраэпителиальная неоплазия полового члена)3) Американизм: Personal Identity Number4) Военный термин: PACOM Intelligence Net, Personal Increment Number, Personnel Item Number, Photographic Intelligence Note, Preliminary Imagery Nomination File, personal injury notice, plan identification number, private identification number, program identification number, proposal identification number, publication index number6) Шутливое выражение: Prostatic Intraepithelial Neoplasia7) Бухгалтерия: Project Identification Number8) Оптика: positive-intrinsic-negative9) Телекоммуникации: Positive-Intrinsic-Negative (Fiber Optics, SONET)10) Сокращение: Personal Identification Number (password), Police Information Network, Positive-Intrinsic-Negative (semiconductor), Precision Inertial Navigation, part or identification number, positive-intrinsic-negative (transistor)11) Физиология: Pain In The Neck, Prostate Intraepithelial Neoplasia12) Вычислительная техника: procedure interrupt negative, Personal Identification Number (Banking, ICC), Processor Independent Netware (Novell, HP, DEC, Apple, Sun), Personal Internet Name (RFC 3042), сигнал негативного прерывания процедуры13) Связь: personal identification14) Банковское дело: личный идентификационный номер (personal identification number)15) Экология: товарный код, товарный шифр17) Деловая лексика: Performance Index Number, Product Identification Number, Property Index Number, (Periodic Indicative Notice) Периодическое показательное уведомление18) Сетевые технологии: Processor Independent NetWare, пароль для доступа к системе, персональный идентификационный номер, персональный код пользователя19) Автоматика: pinion20) Полупроводники: p-type Insulator n-type21) Океанография: Pacific Island network22) Расширение файла: Personal Identification Number, Game data (Epic Pinball), Process Identification Number (Unix)23) Автодорожное право: Pan-American Institute of Highways, Панамериканский автодорожный институт24) Электротехника: position indicator25) Майкрософт: ПИН26) Общественная организация: People In Need27) NYSE. A M F Bowling, Inc.28) Профсоюзы: Postal Index Number29) Дактилоскопия: средство идентификации, личный номер (Personal Identification Number) -
58 чёткость изображения
1) Engineering: accuracy, definition quality, display legibility, image definition, image detail, photographic acutance2) Railway term: definition (на телевизоре)3) Architecture: sharpness4) Cinema: pluck5) Optics: visual clarity6) TV: image sharpness7) Electronics: apparent definition8) Information technology: clearness9) Cartography: definition10) Advertising: image resolution, picture definition, picture resolution11) Security: pictoral resolution, picture sharpnessУниверсальный русско-английский словарь > чёткость изображения
-
59 negative
['neɡətiv] 1. adjective1) (meaning or saying `no'; denying something: a negative answer.) negativen2) (expecting to fail: a negative attitude.) negativen3) (less than zero: -4 is a negative or minus number.) negativen4) (having more electrons than normal: The battery has a negative and a positive terminal.) negativen2. noun1) (a word etc by which something is denied: `No' and `never' are negatives.) nikalnica2) (the photographic film, from which prints are made, on which light and dark are reversed: I gave away the print, but I still have the negative.) negativ•* * *I [négətiv]adjective ( negatively adverb)negativen, nikalen, odklonilen, zanikujoč; brezuspešen, brez vrednostiaeronautics ne; biology electrical photography mathematics negativen; colloquially negative quantity — ničmathematics negative sign — znak minusphysics negative acceleration — zadrževanje, zaviranjeelectrical negative electrode — katodaoptics negative lens — razpršilna lečaII [négətiv]nounnikalnica; zanikanje, negacija; negativen odgovor; pravica veta; figuratively negativna lastnost; linguistics nikalnica, nikalni stavek; electrical negativni pol; mathematics znak minus, negativno število; photography negativin the negative — nikalno, neIII [négətiv]transitive verbnegirati, zanikati; odkloniti, odbiti, ovreči, uporabiti veto; oporeči, onemogočiti -
60 Anschütz, Ottomar
SUBJECT AREA: Photography, film and optics[br]b. 1846 Lissa, Prussia (now Leszno, Poland) d. 1907[br]German photographer, chronophotographer ana inventor.[br]The son of a commercial photographer, Anschütz entered the business in 1868 and developed an interest in the process of instantaneous photography. The process was very difficult with the contemporary wet-plate process, but with the introduction of the much faster dry plates in the late 1870s he was able to make progress. Anschütz designed a focal plane shutter capable of operating at speeds up to 1/1000 of a second in 1883, and patented his design in 1888. it involved a vertically moving fabric roller-blind that worked at a fixed tension but had a slit the width of which could be adjusted to alter the exposure time. This design was adopted by C.P.Goerz, who from 1890 manufactures a number of cameras that incorporated it.Anschütz's action pictures of flying birds and animals attracted the attention of the Prussian authorities, and in 1886 the Chamber of Deputies authorized financial support for him to continue his work, which had started at the Hanover Military Institute in October 1885. Inspired by the work of Eadweard Muybridge in America, Anschütz had set up rows of cameras whose focal-plane shutters were released in sequence by electromagnets, taking twenty-four pictures in about three-quarters of a second. He made a large number of studies of the actions of people, animals and birds, and at the Krupp artillery range at Meppen, near Essen, he recorded shells in flight. His pictures were reproduced, and favourably commented upon, in scientific and photographic journals.To bring the pictures to the public, in 1887 he created the Electro-Tachyscope. The sequence negatives were printed as 90 x 120 mm transparencies and fixed around the circumference of a large steel disc. This was rotated in front of a spirally wound Geissler tube, which produced a momentary brilliant flash of light when a high voltage from an induction coil was applied to it, triggered by contacts on the steel disc. The flash duration, about 1/1000 of a second, was so short that it "froze" each picture as it passed the tube. The pictures succeeded each other at intervals of about 1/30 of a second, and the observer saw an apparently continuously lit moving picture. The Electro-Tachyscope was shown publicly in Berlin at the Kulturministerium from 19 to 21 March 1887; subsequently Siemens \& Halske manufactured 100 machines, which were shown throughout Europe and America in the early 1890s. From 1891 his pictures were available for the home in the form of the Tachyscope viewer, which used the principle of the zoetrope: sequence photographs were printed on long strips of thin card, perforated with narrow slots between the pictures. Placed around the circumference of a shallow cylinder and rotated, the pictures could be seen in life-like movement when viewed through the slots.In November 1894 Anschütz displayed a projector using two picture discs with twelve images each, which through a form of Maltese cross movement were rotated intermittently and alternately while a rotating shutter allowed each picture to blend with the next so that no flicker occurred. The first public shows, given in Berlin, were on a screen 6×8 m (20×26 ft) in size. From 22 February 1895 they were shown regularly to audiences of 300 in a building on the Leipzigstrasse; they were the first projected motion pictures seen in Germany.[br]Further ReadingJ.Deslandes, 1966, Histoire comparée du cinéma, Vol. I, Paris. B.Coe, 1992, Muybridge and the Chronophotographers, London.BC
См. также в других словарях:
photographic optics — fotografinė optika statusas T sritis fizika atitikmenys: angl. photographic optics vok. Photooptik, f rus. фотографическая оптика, f pranc. optique photographique, f … Fizikos terminų žodynas
Optics — For the book by Sir Isaac Newton, see Opticks. Optical redirects here. For the musical artist, see Optical (artist). Optics includes study of dispersion of light. Optics is the branch of … Wikipedia
optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… … Universalium
Photographic lens — A photographic lens (also known as objective lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media… … Wikipedia
Photographic filter — Four photographic filters. Clockwise, from top left, an infrared hot mirror filter, a polarising filter, and a UV filter. The larger filter is a polariser for Cokin style filter mounts. In photography and videography, a filter is a camera… … Wikipedia
Lens (optics) — For other uses, see Lens. A lens. Lenses can be used to focus light. A lens is an optical device with perfect or approximate axial symmetry which tra … Wikipedia
Diaphragm (optics) — A 35 mm lens set to f/8; the diameter of the seven sided entrance pupil, the virtual image of the opening in the iris diaphragm, is 4.375 mm In optics, a diaphragm is a thin opaque structure with an opening (aperture) at its center. The role of… … Wikipedia
Distortion (optics) — v · d · e Optical aberration … Wikipedia
Cardinal point (optics) — For other uses, see Cardinal point (disambiguation). In Gaussian optics, the cardinal points consist of three pairs of points located on the optical axis of an ideal, rotationally symmetric, focal, optical system. For ideal systems, the basic… … Wikipedia
Crown glass (optics) — This article is about crown glass as used in optics. For the window glass, see Crown glass (window). Crown glass is type of optical glass used in lenses and other optical components. It has relatively low refractive index (≈1.52) and low… … Wikipedia
Index of optics articles — Optics is the branch of physics which involves the behavior and properties of light, including its interactions with matter and the construction of instruments that use or detect it.[1] Optics usually describes the behavior of visible,… … Wikipedia