mirror screw

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• Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… …   Wikipedia

• Mirror mount — This article is about the general subject. For mirror mounts specific to primary telescope mirrors, see Mirror support cell. Two kinematic mirror mounts, with mirrors. A mirror mount is a device that holds a mirror. In optics research, these can… …   Wikipedia

• Screw axis — The screw axis (helical axis or twist axis) of an object is a parameter for describing simultaneous rotation and translation components of that object.The axis is a directed line in space, along which a translation may occur, and about which… …   Wikipedia

• Hand screw — Hand Hand (h[a^]nd), n. [AS. hand, hond; akin to D., G., & Sw. hand, OHG. hant, Dan. haand, Icel. h[ o]nd, Goth. handus, and perh. to Goth. hin[thorn]an to seize (in comp.). Cf. {Hunt}.] 1. That part of the fore limb below the forearm or wrist in …   The Collaborative International Dictionary of English

• History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… …   Wikipedia

• Single-lens reflex camera — The single lens reflex (SLR) camera uses an automatic moving mirror system which permits the photographer to see exactly what will be captured by the film or digital imaging system, as opposed to non SLR cameras where the view through the… …   Wikipedia

• Pentax cameras — This article discusses the cameras – mainly 35 mm SLRs – manufactured by Hoya Corporation s Pentax division (ペンタックス, Pentakkusu?) and its predecessors, Pentax Corporation (ペンタックス株式会社, Pentakkusu Kabushiki gaisha …   Wikipedia

• Negative Syndicate — A Negative Syndicate (ネガティブシンジケート, Negatibu Shinjikēto?) is any of the fictional antagonistic organizations who seek out the Precious in the 30th Super Sentai Series GoGo Sentai Boukenger. This title is given to them by the Search Guard Successor …   Wikipedia

• Reflecting instrument — Reflecting instruments are those that use mirrors to enhance their ability to make measurements. In particular, the use of mirrors permits one to observe two objects simultaneously while measuring the angular distance between the objects. While… …   Wikipedia

• Olympus OM system — The Olympus OM System was a line of 35mm single lens reflex cameras, lenses and accessories sold by Olympus between 1972 and 2002 (some accessories were sold through early 2003). The system was introduced by Olympus in 1972, more than a decade… …   Wikipedia

• Symmetry — For other uses, see Symmetry (disambiguation) …   Wikipedia