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21 X-ray optics of Seeman-Bohlin-type camera
Металлургия: рентгенооптическая схема камеры Зеемана - БолинаУниверсальный англо-русский словарь > X-ray optics of Seeman-Bohlin-type camera
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22 fiber-optics camera
Космонавтика: фотокамера с стекловолоконной оптикой -
23 fiber-optics image dissection camera
Универсальный англо-русский словарь > fiber-optics image dissection camera
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24 fibre-optics camera
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25 fibre-optics image dissector camera
Универсальный англо-русский словарь > fibre-optics image dissector camera
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26 оптическая система кинокамеры
Большой англо-русский и русско-английский словарь > оптическая система кинокамеры
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27 оптическая система кинокамеры
motion-picture camera opticsАнгло-русский словарь технических терминов > оптическая система кинокамеры
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28 focus
1. noun1) (Optics, Photog.) Brennpunkt, der; (focal length) Brennweite, die; (adjustment of eye or lens) Scharfeinstellung, dieout of/in focus — unscharf/scharf eingestellt [Kamera, Teleskop]; unscharf/scharf [Foto, Film, Vordergrund usw.]
get something in focus — (fig.) etwas klarer erkennen
2. transitive verb,be the focus of attention — im Brennpunkt des Interesses stehen
-s- or - ss-1) (Optics, Photog.) einstellen (on auf + Akk.)focus one's eyes on something/somebody — die Augen auf etwas/jemanden richten
2) (concentrate) bündeln [Licht, Strahlen]; (fig.) konzentrieren (on auf + Akk.)3. intransitive verb,-s- or - ss-1)the camera focuses automatically — die Kamera hat automatische Scharfeinstellung
2) [Licht, Strahlen:] sich bündeln; (fig.) sich konzentrieren (on auf + Akk.)* * *['foukəs] 1. plurals - focuses, foci; noun1) (the point at which rays of light meet after passing through a lens.) der Brennpunkt2) (a point to which light, a look, attention etc is directed: She was the focus of everyone's attention.) der Mittelpunkt2. verb1) (to adjust (a camera, binoculars etc) in order to get a clear picture: Remember to focus the camera / the picture before taking the photograph.) scharf stellen2) (to direct (attention etc) to one point: The accident focussed public attention on the danger.) konzentrieren•- academic.ru/28474/focal">focal- in
- out of focus* * *fo·cus[ˈfəʊkəs, AM ˈfoʊ-, pl ˈfəʊsaɪ]I. nto be the \focus of attention im Mittelpunkt stehen\focus of discontent Quelle f der Unzufriedenheit\focus of a policy/programme Schwerpunkt m einer Politik/eines Programmsto bring sth in[to] \focus etw in den Brennpunkt rückenout of \focus unklar, unscharf▪ to be in/out of \focus scharf/nicht scharf eingestellt seinII. vi<-s- or -ss->1. (concentrate) sich konzentrieren2. (see) klar sehen3. PHYS fokussierenIII. vt<-s- or -ss->to \focus one's attention on sth seine Aufmerksamkeit auf etw akk konzentrieren2. (direct)to \focus a camera/telescope [on sb/sth] eine Kamera/ein Teleskop scharf [auf jdn/etw akk] einstellento \focus one's eyes on sb/sth den Blick auf jdn/etw akk richtenall eyes were \focused on the actress alle Augen waren auf die Schauspielerin gerichtet* * *['fəʊkəs]1. n pl foci['fəʊkɪ] (PHYS, MATH fig) Brennpunkt m; (of storm) Zentrum nt; (of earthquake, MED) Herd mto bring sth into focus (lit) — etw klar or scharf einstellen; (fig) topic etw in den Brennpunkt rücken
out of focus ( lit, camera ) — unscharf eingestellt; photo unscharf; (fig) ideas vage
to come into focus — ins Blickfeld rücken
to keep sth in focus (lit) — etw scharf eingestellt im Suchfeld behalten; (fig) etw im Blickfeld behalten
he/the new proposal was the focus of attention — er/der neue Vorschlag stand im Mittelpunkt
2. vtinstrument einstellen (on auf +acc); light, heat rays bündeln; (fig) one's efforts, resources, energy konzentrieren (on auf +acc)to focus one's eyes on sb/sth — den Blick auf jdn/etw richten
to focus one's attention/mind — sich konzentrieren
I should like to focus your attention ( up)on a new problem — ich möchte Ihre Aufmerksamkeit auf ein neues Problem lenken
3. vi(light, heat rays) sich bündelnto focus on sth — sich auf etw (acc) konzentrieren
I can't focus properly — ich kann nicht mehr klar sehen
* * *focus [ˈfəʊkəs] pl -cuses, -ci [-saı]A s1. a) MATH, PHYS, TECH Brennpunkt m, Fokus mb) TV Lichtpunkt mc) PHYS Brennweite fd) OPT, FOTO Scharfeinstellung f:bring into focus → B 1, B 2 ( → A 2);focus control Scharfeinstellung f (Vorrichtung)2. fig Brenn-, Mittelpunkt m:be the focus of attention im Brenn- oder Mittelpunkt des Interesses stehen;bring into focus in den Brennpunkt rücken ( → A 1)B v/t prät und pperf -cused, -cussed1. OPT, FOTO fokussieren, scharf einstellenon auf akk):focus one’s mind on sich konzentrieren auf;all eyes were focus(s)ed on her alle Augen waren auf sie gerichtetC v/i1. PHYS sich in einem Brennpunkt vereinigen2. OPT, FOTO sich scharf einstellen4. umg klar denken* * *1. noun1) (Optics, Photog.) Brennpunkt, der; (focal length) Brennweite, die; (adjustment of eye or lens) Scharfeinstellung, dieout of/in focus — unscharf/scharf eingestellt [Kamera, Teleskop]; unscharf/scharf [Foto, Film, Vordergrund usw.]
get something in focus — (fig.) etwas klarer erkennen
2) (fig.): (centre, central object) Mittelpunkt, der2. transitive verb,-s- or - ss-1) (Optics, Photog.) einstellen (on auf + Akk.)focus one's eyes on something/somebody — die Augen auf etwas/jemanden richten
2) (concentrate) bündeln [Licht, Strahlen]; (fig.) konzentrieren (on auf + Akk.)3. intransitive verb,-s- or - ss-1)2) [Licht, Strahlen:] sich bündeln; (fig.) sich konzentrieren (on auf + Akk.)* * *n.(§ pl.: focuses, or: foci)= Bildschärfe f.Brennpunkt m.sein Hauptaugenmerk richten auf ausdr. v.scharfstellen v. -
29 focus
focus ['fəʊkəs] (pl focuses or foci [-saɪ], pt & pp focussed or focused, cont focussing or focusing)1 noun∎ the picture is in/out of focus l'image est nette/floue, l'image est/n'est pas au point;∎ the binoculars are in/out of focus les jumelles sont/ne sont pas au point;∎ bring the image into focus fais la mise au point, mets l'image au point∎ she was the focus of attention elle était le centre d'attention;∎ taxes are currently the focus of attention en ce moment, les impôts sont au centre des préoccupations;∎ the government is trying to shift the focus of the debate le gouvernement tente de déplacer le débat;∎ let's try and get the problem into focus essayons de préciser le problème;∎ the focus of the conference is on human rights le point central de la conférence, ce sont les droits de l'homme;∎ the organization will provide some kind of a focus for opposition to the project l'organisation fournira un point de ralliement à l'opposition au projet;∎ this became a focus of people's discontent le mécontentement s'est concentré là-dessus∎ to focus a camera (on sth) faire la mise au point d'un appareil photo (sur qch)∎ he couldn't focus his eyes il voyait trouble;∎ all eyes were focussed on him tous les regards étaient rivés sur lui(c) (direct → heat, light) faire converger; (→ beam, ray) diriger; figurative (→ attention, energies) concentrer; (→ interest, concern) centrer∎ I can't focus properly je vois trouble, je n'arrive pas à accommoder∎ the debate focussed on unemployment le débat était centré sur le problème du chômage;∎ his speech focussed on the role of the media son discours a porté principalement sur le rôle des médias -
30 tube
1) (электронная) лампа; (электронный) прибор2) трубка, труба || придавать трубчатую форму3) заключать в трубу или трубку•- tube of magnetic flux
- acorn tube
- acoustical tube
- air-cooled tube
- aligned-grid tube
- aluminized-screen picture tube
- amplifier tube
- anode-potential-stabilized camera tube
- anode-voltage-stabilized camera tube
- anti-TR tube
- anti-transmit-receive tube
- aperture-grill cathode ray tube
- aperture-grille cathode ray tube
- apple tube
- arc-discharge tube
- ATR tube
- attenuator tube
- backward-wave tube
- traveling-wave tube
- ballast tube
- banana tube
- banana-color tube
- band-ignitor tube
- bantam tube
- Barkhausen tube
- barrier-grid storage tube
- beam-deflection mixer tube
- beam-indexing tube
- beam-power tube
- beam-shaping cathode-ray tube
- beam-storage tube
- beam-switching tube
- bistable-phosphor storage tube
- bogey tube
- boob tube
- boron counter tube
- Braun tube
- Brewster angle tube
- camera tube
- camera storage tube
- cathode-potential-stabilized camera tube
- cathode-ray tube
- cathode-ray charge-storage tube
- cathode-ray storage tube
- cathode-voltage-stabilized camera tube
- cathodochromic dark-trace tube
- catkin tube
- cell-type tube
- character-generation cathode-ray tube
- character-indicator tube
- Charactron tube
- charge-storage tube
- chromatron tube
- coding tube
- coiltube
- cold-cathode tube
- cold-cathode counter tube
- cold-cathode glow-discharge tube
- cold-cathode stepping tube
- color cathode-ray tube
- color-picture tube
- control tube
- converter tube
- cooled-anode tube
- cooled-anode transmitting tube
- Coolidge tube
- corona tube
- counter tube
- coupled-cavity traveling-wave tube
- Crookes tube
- crossed-field tube
- cyclotron-wave tube
- damper tube
- dark-trace tube
- dc-powered tube
- decade counter tube
- deflection-type storage tube
- demountable tube
- density-modulated tube
- detector tube
- diffusion tube
- diffusion-furnace tube
- direct-display storage tube
- directly heated tube
- direct-viewing image tube
- direct-view storage tube
- discharge tube
- disk-seal tube
- display storage tube
- dissector tube
- doorknob tube
- dot matrix tube
- double-beam cathode-ray tube
- double-gun cathode-ray tube
- double-stream backward-wave tube
- draw tube
- drift tube
- driver tube
- dual-deflection tube
- duplex tube
- electrical-signal storage tube
- electric-flux tube
- electromagnetically deflected tube
- electromagnetically focused tube
- electromagnetically focused image tube
- electromagnetic cathode-ray tube
- electromagnetic-deflection cathode-ray tube
- electrometer tube
- electron tube
- electron-beam tube
- electron-beam switch tube with cross fields
- electron-beam switch tube with trochoid beam
- electron-dispersion tube
- electronic flash tube
- electron image tube
- electron-indicator tube
- electron-multiplier tube
- electron-ray tube
- electrostatically deflected tube
- electrostatically focused tube
- electrostatically focused traveling-wave tube
- electrostatic cathode-ray tube
- electrostatic memory tube
- electrostatic printing tube
- electrostatic storage tube
- end-window counter tube
- Eustachian tube
- extended-cutoff tube
- extended-interaction tube
- externally quenched counter tube
- Farnsworth image-dissector tube
- fast-wave tube
- fiber-optics image tube
- flash tube
- flat tube
- flux tube
- fuse tube
- gas tube
- gas-discharge tube
- gas-filled radiation-counter tube
- gas-flow counter tube
- gas rectifier tube
- gassy tube
- gated-beam tube
- Geiger counter tube
- Geiger-Mueller counter tube
- glass tube
- glow tube
- glow-discharge cold-cathode tube
- glow indicator tube
- grid-control tube
- gridded tube
- grid-glow tube
- grid-pool tube
- halogen-quenched counter tube
- hard tube
- heater-type tube
- heat-eye tube
- Heil tube
- helix traveling-wave tube
- high-electron-velocity camera tube
- high-mu tube
- high-power tube
- high-vacuum tube
- high-velocity camera tube
- Hittorf tube
- hodoscope tube
- hollow-cathode tube
- hot-cathode tube
- hot-cathode gas-filled tube
- image tube
- image camera tube
- image-converter tube
- image-dissector tube
- image-intensifier tube
- image orthicon tube
- image storage tube
- indicator tube
- indirectly heated tube
- inductance tube
- induction-output tube
- interference tube
- ionic-heated-cathode tube
- ionization-gage tube
- key tube
- klystron tube
- laser tube
- Lawrence tube
- lighthouse tube
- light-sensitive tube
- linear-beam tube
- line-focus tube
- liquid-flow counter tube
- local-oscillator tube
- low-electron-velocity camera tube
- luminescent-screen tube
- magnetic tube of force
- magnetically beamed tube
- master tube
- McNally tube
- mechanically controlled tube
- memory cathode-ray tube
- mercury tube
- mercury-arc tube
- mercury-pool tube
- mercury-vapor tube
- metal tube
- metal-ceramic disk tube
- microwave tube
- miniature tube
- mixer tube
- monochromatic cathode-ray tube
- monoscope cathode-ray tube
- M-type tube
- multianode tube
- multicolor cathode-ray tube
- multielectrode tube
- multigun tube
- multigun cathode-ray tube
- multiple-collector traveling-wave tube
- multiple-unit tube
- multiplier tube
- multistage tube
- multiunit tube
- negative tube
- Nixie tube
- noise tube
- noise-generator tube
- nonstorage camera tube
- numerical indicator tube
- numerical-readout tube
- optical-relay tube
- organic-quenched counter tube
- oscillating tube
- oscillograph tube
- oscilloscope tube
- O-type tube
- output tube
- overdriven tube
- PDA tube
- peanut tube
- pencil tube
- penetration-control color tube
- pentagrid tube
- phase-tuned tube
- photoconductive storage tube
- photoelectric tube
- photoelectric electron-multiplier tube
- photo erasable dark trace storage tube
- photo erasable dark trace cathode-ray storage tube
- photoflash tube
- photoglow tube
- photomixer image tube
- photomultiplier tube
- photosensitive tube
- pickup tube
- picture tube
- planar ceramic tube
- plasma-cathode traveling-wave tube
- plumbicon tube
- Pockels tube
- pool tube
- pool-cathode tube
- positive tube
- positive-grid oscillator tube
- postdeflection acceleration tube
- power tube
- power-amplifier tube
- pressure-equalizing tube
- pre-TR tube
- projected tube
- projection cathode-ray tube
- proportional counter tube
- protector tube
- pumped tube
- pyroelectric thermal image tube
- radar tube
- radial-beam tube
- radiation counter tube
- radiation-indexing color tube
- radio tube
- range-azimuth tube
- reactance tube
- reaction tube
- recording storage tube
- regulator tube
- remote-cutoff tube
- repeating flash tube
- ring-sealed tube
- rotation-anode tube
- rotation-anode X-ray tube
- scan-converter storage tube
- screen-grid tube
- sealed-off discharge tube
- SEC camera tube
- secondary-electron conduction camera tube
- secondary-emission tube
- self-focused picture tube
- self-pumping traveling-wave tube
- self-quenched counter tube
- self-rectifying X-ray tube
- shadow-mask cathode ray tube
- shadow-mask color-picture tube
- shaped-beam tube
- sharp-cutoff tube
- shielded tube
- shrinkable plastic tube
- signal-generating tube
- silicon camera tube
- silicon diode-array camera tube
- silicon-dioxide storage tube
- silicon intensifier target tube
- single-collector traveling-wave tube
- single-gun color-picture tube
- SIT tube
- situation-display tube
- slave tube
- slot-mask cathode ray tube
- slot-matrix tube
- soft tube
- space-charge tube
- space-charge-wave tube
- split-beam cathode-ray tube
- squelch tube
- stacked-ceramic tube
- storage tube
- storage cathode-ray tube
- storage-type camera tube
- stroboscopic tube
- subminiature tube
- switching tube
- Tamman tube
- television picture tube
- thermionic tube
- thin cathode-ray tube
- thin-wall counter tube
- three-dimensional cathode-ray tube
- three-gap TR tube
- three-gun color-picture tube
- three-neck picture tube
- TR tube
- transmit-receive tube
- transverse-beam traveling-wave tube
- transverse-field traveling-wave tube
- traveling-wave tube
- TR bandpass tube
- tricolor tube
- tricolor-picture tube
- trigger tube
- tungar tube
- vacuum tube
- vacuum fluorescent tube
- vacuum-gage tube
- valve tube
- variable-mu tube
- velocity-modulated tube
- video camera tube
- voltage-amplifier tube
- voltage-reference tube
- voltage-regulator tube
- voltage-stabilizing tube
- voltage-tunable tube
- wall tube
- water-cooled tube
- Williams tube
- window counter tube
- windowless photomultiplier tube
- xenon flash tube
- X-ray tube -
31 FOC
1) Компьютерная техника: Fiber Optic Connector2) Авиация: камера обнаружения слабоконтрастных объектов3) Американизм: Freedom Of Choice4) Военный термин: FORSCOM Operations Center, Final Operational Capabilities, Full Operating Capacity, farthest on circle, final operational capability, flag of convenience, flag officer-in-charge, flight operating costs, flight operations center, foreign object check, full operational capability6) Юридический термин: Flags Of Convenience7) Страхование: Free of claim8) Сокращение: Final / Full Operational Capability, First of class (warship), focus, Faint Object Camera (on HST), б/п9) Университет: Freshman Orientation Camp10) Физиология: Flight of colors test11) Электроника: Fan Off Control12) Вычислительная техника: Fiber Optic Cable / Communications, Faint Object Camera (on HST, Space)13) Космонавтика: Faint Object Camera (ESA)14) Банковское дело: бесплатный (free of charge)15) Транспорт: Freight Out Charge16) Деловая лексика: Franchise Offering Circular17) Глоссарий компании Сахалин Энерджи: Fibre Optic Cable18) Инвестиции: free of charge19) Сетевые технологии: fiber optic cable, fiber optic communications, fiber-optics communications, волоконно-оптическая связь, волоконно-оптический кабель20) Сахалин Р: fiber optic communication21) Каспий: foreign oil company22) Аэропорты: Fuzhou, Mainland China -
32 foc
1) Компьютерная техника: Fiber Optic Connector2) Авиация: камера обнаружения слабоконтрастных объектов3) Американизм: Freedom Of Choice4) Военный термин: FORSCOM Operations Center, Final Operational Capabilities, Full Operating Capacity, farthest on circle, final operational capability, flag of convenience, flag officer-in-charge, flight operating costs, flight operations center, foreign object check, full operational capability6) Юридический термин: Flags Of Convenience7) Страхование: Free of claim8) Сокращение: Final / Full Operational Capability, First of class (warship), focus, Faint Object Camera (on HST), б/п9) Университет: Freshman Orientation Camp10) Физиология: Flight of colors test11) Электроника: Fan Off Control12) Вычислительная техника: Fiber Optic Cable / Communications, Faint Object Camera (on HST, Space)13) Космонавтика: Faint Object Camera (ESA)14) Банковское дело: бесплатный (free of charge)15) Транспорт: Freight Out Charge16) Деловая лексика: Franchise Offering Circular17) Глоссарий компании Сахалин Энерджи: Fibre Optic Cable18) Инвестиции: free of charge19) Сетевые технологии: fiber optic cable, fiber optic communications, fiber-optics communications, волоконно-оптическая связь, волоконно-оптический кабель20) Сахалин Р: fiber optic communication21) Каспий: foreign oil company22) Аэропорты: Fuzhou, Mainland China -
33 lens
noun2) (Photog.) Objektiv, das* * *[lenz]1) (a piece of glass etc curved on one or both sides and used in spectacles, microscopes, cameras etc: I need new lenses in my spectacles; The camera lens is dirty.) die Linse, die Gläser (pl.), das Objektiv2) (a similar part of the eye: The disease has affected the lens of his left eye.) die Linse* * *<pl -es>[lenz]n[contact] \lens Kontaktlinse ffish-eye \lens Fischauge ntzoom \lens Zoom nt* * *[lenz]n (ANAT, OPT, PHOT)Linse f; (in spectacles) Glas nt; (= camera part containing lens) Objektiv nt; (= eyeglass) Klemmlupe f; (for stamps etc) Vergrößerungsglas nt, Lupe f* * *lens [lenz] s2. FOTO, PHYS Objektiv n4. Lupe f5. ZOOL Sehkeil m (eines Facettenauges)* * *noun2) (Photog.) Objektiv, das* * *n.(§ pl.: lenses)= Linse -n f. -
34 Barnack, Oskar
SUBJECT AREA: Photography, film and optics[br]b. 1879 Berlin, Germanyd. January 1936 Wetzlar, Germany[br]German camera designer who conceived the first Leica camera and many subsequent models.[br]Oskar Barnack was an optical engineer, introspective and in poor health, when in 1910 he was invited through the good offices of his friend the mechanical engineer Emil Mechau, who worked for Ernst Leitz, to join the company at Wetzlar to work on research into microscope design. He was engaged after a week's trial, and on 2 January 1911 he was put in charge of microscope research. He was an enthusiastic photographer, but excursions with his large and heavy plate camera equipment taxed his strength. In 1912, Mechau was working on a revolutionary film projector design and needed film to test it. Barnack suggested that it was not necessary to buy an expensive commercial machine— why not make one? Leitz agreed, and Barnack constructed a 35 mm movie camera, which he used to cover events in and around Wetzlar.The exposure problems he encountered with the variable sensitivity of the cine film led him to consider the design of a still camera in which short lengths of film could be tested before shooting—a kind of exposure-meter camera. Dissatisfied with the poor picture quality of his first model, which took the standard cine frame of 18×24 mm, he built a new model in which the frame size was doubled to 36×24 mm. It used a simple focal-plane shutter adjustable to 1/500 of a second, and a Zeiss Milar lens of 42 mm focal length. This is what is now known as the UR-Leica. Using his new camera, 1/250 of the weight of his plate equipment, Barnack made many photographs around Wetzlar, giving postcard-sized prints of good quality.Ernst Leitz Junior was lent the camera for his trip in June 1914 to America, where he was urged to put it into production. Visiting George Eastman in Rochester, Leitz passed on Barnack's requests for film of finer grain and better quality. The First World War put an end to the chances of developing the design at that time. As Germany emerged from the postwar chaos, Leitz Junior, then in charge of the firm, took Barnack off microscope work to design prototypes for a commercial model. Leitz's Chief Optician, Max Berek, designed a new lens, the f3.5 Elmax, for the new camera. They settled on the name Leica, and the first production models went on show at the Leipzig Spring Fair in 1925. By the end of the year, 1,000 cameras had been shipped, despite costing about two months' good wages.The Leica camera established 35 mm still photography as a practical proposition, and film manufacturers began to create the special fine-grain films that Barnack had longed for. He continued to improve the design, and a succession of new Leica models appeared with new features, such as interchangeable lenses, coupled range-finders, 250 exposures. By the time of his sudden death in 1936, Barnack's life's work had forever transformed the nature of photography.[br]Further ReadingJ.Borgé and G.Borgé, 1977, Prestige de la, photographie.BC -
35 Eastman, George
SUBJECT AREA: Photography, film and optics[br]b. 12 July 1854 Waterville, New York, USAd. 14 March 1932 Rochester, New York, USA[br]American industrialist and pioneer of popular photography.[br]The young Eastman was a clerk-bookkeeper in the Rochester Savings Bank when in 1877 he took up photography. Taking lessons in the wet-plate process, he became an enthusiastic amateur photographer. However, the cumbersome equipment and noxious chemicals used in the process proved an obstacle, as he said, "It seemed to be that one ought to be able to carry less than a pack-horse load." Then he came across an account of the new gelatine dry-plate process in the British Journal of Photography of March 1878. He experimented in coating glass plates with the new emulsions, and was soon so successful that he decided to go into commercial manufacture. He devised a machine to simplify the coating of the plates, and travelled to England in July 1879 to patent it. In April 1880 he prepared to begin manufacture in a rented building in Rochester, and contacted the leading American photographic supply house, E. \& H.T.Anthony, offering them an option as agents. A local whip manufacturer, Henry A.Strong, invested $1,000 in the enterprise and the Eastman Dry Plate Company was formed on 1 January 1881. Still working at the Savings Bank, he ran the business in his spare time, and demand grew for the quality product he was producing. The fledgling company survived a near disaster in 1882 when the quality of the emulsions dropped alarmingly. Eastman later discovered this was due to impurities in the gelatine used, and this led him to test all raw materials rigorously for quality. In 1884 the company became a corporation, the Eastman Dry Plate \& Film Company, and a new product was announced. Mindful of his desire to simplify photography, Eastman, with a camera maker, William H.Walker, designed a roll-holder in which the heavy glass plates were replaced by a roll of emulsion-coated paper. The holders were made in sizes suitable for most plate cameras. Eastman designed and patented a coating machine for the large-scale production of the paper film, bringing costs down dramatically, the roll-holders were acclaimed by photographers worldwide, and prizes and medals were awarded, but Eastman was still not satisfied. The next step was to incorporate the roll-holder in a smaller, hand-held camera. His first successful design was launched in June 1888: the Kodak camera. A small box camera, it held enough paper film for 100 circular exposures, and was bought ready-loaded. After the film had been exposed, the camera was returned to Eastman's factory, where the film was removed, processed and printed, and the camera reloaded. This developing and printing service was the most revolutionary part of his invention, since at that time photographers were expected to process their own photographs, which required access to a darkroom and appropriate chemicals. The Kodak camera put photography into the hands of the countless thousands who wanted photographs without complications. Eastman's marketing slogan neatly summed up the advantage: "You Press the Button, We Do the Rest." The Kodak camera was the last product in the design of which Eastman was personally involved. His company was growing rapidly, and he recruited the most talented scientists and technicians available. New products emerged regularly—notably the first commercially produced celluloid roll film for the Kodak cameras in July 1889; this material made possible the introduction of cinematography a few years later. Eastman's philosophy of simplifying photography and reducing its costs continued to influence products: for example, the introduction of the one dollar, or five shilling, Brownie camera in 1900, which put photography in the hands of almost everyone. Over the years the Eastman Kodak Company, as it now was, grew into a giant multinational corporation with manufacturing and marketing organizations throughout the world. Eastman continued to guide the company; he pursued an enlightened policy of employee welfare and profit sharing decades before this was common in industry. He made massive donations to many concerns, notably the Massachusetts Institute of Technology, and supported schemes for the education of black people, dental welfare, calendar reform, music and many other causes, he withdrew from the day-to-day control of the company in 1925, and at last had time for recreation. On 14 March 1932, suffering from a painful terminal cancer and after tidying up his affairs, he shot himself through the heart, leaving a note: "To my friends: My work is done. Why wait?" Although Eastman's technical innovations were made mostly at the beginning of his career, the organization which he founded and guided in its formative years was responsible for many of the major advances in photography over the years.[br]Further ReadingC.Ackerman, 1929, George Eastman, Cambridge, Mass.B.Coe, 1973, George Eastman and the Early Photographers, London.BC -
36 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 -
37 Sutton, Thomas
SUBJECT AREA: Photography, film and optics[br]b. 1819 Englandd. 1875 Jersey, Channel Islands[br]English photographer and writer on photography.[br]In 1841, while studying at Cambridge, Sutton became interested in photography and tried out the current processes, daguerreotype, calotype and cyanotype among them. He subsequently settled in Jersey, where he continued his photographic studies. In 1855 he opened a photographic printing works in Jersey, in partnership with L.-D. Blanquart- Evrard, exploiting the latter's process for producing developed positive prints. He started and edited one of the first photographic periodicals, Photographic Notes, in 1856; until its cessation in 1867, his journal presented a fresher view of the world of photography than that given by its London-based rivals. He also drew up the first dictionary of photography in 1858.In 1859 Sutton designed and patented a wideangle lens in which the space between two meniscus lenses, forming parts of a sphere and sealed in a metal rim, was filled with water; the lens so formed could cover an angle of up to 120 degrees at an aperture of f12. Sutton's design was inspired by observing the images produced by the water-filled sphere of a "snowstorm" souvenir brought home from Paris! Sutton commissioned the London camera-maker Frederick Cox to make the Panoramic camera, demonstrating the first model in January 1860; it took panoramic pictures on curved glass plates 152×381 mm in size. Cox later advertised other models in a total of four sizes. In January 1861 Sutton handed over manufacture to Andrew Ross's son Thomas Ross, who produced much-improved lenses and also cameras in three sizes. Sutton then developed the first single-lens reflex camera design, patenting it on 20 August 1961: a pivoted mirror, placed at 45 degrees inside the camera, reflected the image from the lens onto a ground glass-screen set in the top of the camera for framing and focusing. When ready, the mirror was swung up out of the way to allow light to reach the plate at the back of the camera. The design was manufactured for a few years by Thomas Ross and J.H. Dallmeyer.In 1861 James Clerk Maxwell asked Sutton to prepare a series of photographs for use in his lecture "On the theory of three primary colours", to be presented at the Royal Institution in London on 17 May 1861. Maxwell required three photographs to be taken through red, green and blue filters, which were to be printed as lantern slides and projected in superimposition through three projectors. If his theory was correct, a colour reproduction of the original subject would be produced. Sutton used liquid filters: ammoniacal copper sulphate for blue, copper chloride for the green and iron sulphocyanide for the red. A fourth exposure was made through lemon-yellow glass, but was not used in the final demonstration. A tartan ribbon in a bow was used as the subject; the wet-collodion process in current use required six seconds for the blue exposure, about twice what would have been needed without the filter. After twelve minutes no trace of image was produced through the green filter, which had to be diluted to a pale green: a twelve-minute exposure then produced a serviceable negative. Eight minutes was enough to record an image through the red filter, although since the process was sensitive only to blue light, nothing at all should have been recorded. In 1961, R.M.Evans of the Kodak Research Laboratory showed that the red liquid transmitted ultraviolet radiation, and by an extraordinary coincidence many natural red dye-stuffs reflect ultraviolet. Thus the red separation was made on the basis of non-visible radiation rather than red, but the net result was correct and the projected images did give an identifiable reproduction of the original. Sutton's photographs enabled Maxwell to establish the validity of his theory and to provide the basis upon which all subsequent methods of colour photography have been founded.JW / BC -
38 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
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39 Acres, Birt
SUBJECT AREA: Photography, film and optics[br]b. 23 July 1854 Virginia, USAd. 1918[br]American photographer, inventor and pioneer cinematographer.[br]Born of English parents and educated in Paris, Acres travelled to England in the 1880s. He worked for the photographic manufacturing firm Elliott \& Co. in Barnet, near London, and became the Manager. He became well known through his frequent lectures, demonstrations and articles in the photographic press. The appearance of the Edison kinetoscope in 1893 seems to have aroused his interest in the recording and reproduction of movement.At the beginning of 1895 he took his idea for a camera to Robert Paul, an instrument maker, and they collaborated on the building of a working camera, which Acres used to record the Oxford and Cambridge Boat Race on 30 March 1895. He filmed the Derby at Epsom on 29 May and the opening of the Kiel Canal in June, as well as ten other subjects for the kinetoscope, which were sold by Paul. Acres's association with Paul ended in July 1895. Acres had patented the camera design, the Kinetic Lantern, on 27 May 1895 and then went on to design a projector with which he gave the first successful presentation of projected motion pictures to take place in Britain, at the Royal Photographic Society's meeting on 14 January 1896. At the end of the month Acres formed his own business, the Northern Photographic Company, to supply film stock, process and print exposed film, and to make finished film productions.His first shows to the public, using the renamed Kineopticon projector, started in Piccadilly Circus on 21 March 1896. He later toured the country with his show. He was honoured with a Royal Command Performance at Marlborough House on 21 July 1896 before members of the royal family. Although he made a number of films for his own use, they and his equipment were used only for his own demonstrations. His last contribution to cinematography was the design and patenting in 1898 of the first low-cost system for amateur use, the Birtac, which was first shown on 25 January 1899 and marketed in May of that year. It used half-width film, 17.5 mm wide, and the apparatus served as camera, printer and projector.[br]Principal Honours and DistinctionsFellow of the Royal Photographic Society 1895.Bibliography27 May 1895 (the Kinetic Lantern).9 June 1898 (the Birtac).Further ReadingJ.Barnes, 1976, The Beginnings of the Cinema in England, London. B.Coe, 1980, The History of Movie Photography, London.BC -
40 Zworykin, Vladimir Kosma
[br]b. 30 July 1889 Mourum (near Moscow), Russiad. 29 July 1982 New York City, New York, USA[br]Russian (naturalized American 1924) television pioneer who invented the iconoscope and kinescope television camera and display tubes.[br]Zworykin studied engineering at the Institute of Technology in St Petersburg under Boris Rosing, assisting the latter with his early experiments with television. After graduating in 1912, he spent a time doing X-ray research at the Collège de France in Paris before returning to join the Russian Marconi Company, initially in St Petersburg and then in Moscow. On the outbreak of war in 1917, he joined the Russian Army Signal Corps, but when the war ended in the chaos of the Revolution he set off on his travels, ending up in the USA, where he joined the Westinghouse Corporation. There, in 1923, he filed the first of many patents for a complete system of electronic television, including one for an all-electronic scanning pick-up tube that he called the iconoscope. In 1924 he became a US citizen and invented the kinescope, a hard-vacuum cathode ray tube (CRT) for the display of television pictures, and the following year he patented a camera tube with a mosaic of photoelectric elements and gave a demonstration of still-picture TV. In 1926 he was awarded a PhD by the University of Pittsburgh and in 1928 he was granted a patent for a colour TV system.In 1929 he embarked on a tour of Europe to study TV developments; on his return he joined the Radio Corporation of America (RCA) as Director of the Electronics Research Group, first at Camden and then Princeton, New Jersey. Securing a budget to develop an improved CRT picture tube, he soon produced a kinescope with a hard vacuum, an indirectly heated cathode, a signal-modulation grid and electrostatic focusing. In 1933 an improved iconoscope camera tube was produced, and under his direction RCA went on to produce other improved types of camera tube, including the image iconoscope, the orthicon and image orthicon and the vidicon. The secondary-emission effect used in many of these tubes was also used in a scintillation radiation counter. In 1941 he was responsible for the development of the first industrial electron microscope, but for most of the Second World War he directed work concerned with radar, aircraft fire-control and TV-guided missiles.After the war he worked for a time on high-speed memories and medical electronics, becoming Vice-President and Technical Consultant in 1947. He "retired" from RCA and was made an honorary vice-president in 1954, but he retained an office and continued to work there almost up until his death; he also served as Director of the Rockefeller Institute for Medical Research from 1954 until 1962.[br]Principal Honours and DistinctionsZworykin received some twenty-seven awards and honours for his contributions to television engineering and medical electronics, including the Institution of Electrical Engineers Faraday Medal 1965; US Medal of Science 1966; and the US National Hall of Fame 1977.Bibliography29 December 1923, US patent no. 2,141, 059 (the original iconoscope patent; finally granted in December 1938!).13 July 1925, US patent no. 1,691, 324 (colour television system).1930, with D.E.Wilson, Photocells and Their Applications, New York: Wiley. 1934, "The iconoscope. A modern version of the electric eye". Proceedings of theInstitute of Radio Engineers 22:16.1946, Electron Optics and the Electron Microscope.1940, with G.A.Morton, Television; revised 1954.1949, with E.G.Ramberg, Photoelectricity and Its Applications. 1958, Television in Science and Industry.Further ReadingJ.H.Udelson, 1982, The Great Television Race: History of the Television Industry 1925– 41: University of Alabama Press.KFBiographical history of technology > Zworykin, Vladimir Kosma
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