- optical wedge
-
a wedge-shaped filter whose transmittance decreases from one end to the other: used as an exposure control device in sensitometry. Also called wedge.
* * *
Universalium. 2010.
optical wedge
Look at other dictionaries:
optical wedge — optinis pleištas statusas T sritis fizika atitikmenys: angl. optical wedge vok. optischer Keil, m rus. оптический клин, m pranc. coin optique, m … Fizikos terminų žodynas
optical wedge — noun : a graded sheet or block (as of glass or film on which is coated a layer of neutral or colored substance varying progressively in transmittance with distance along the sheet) for reducing the intensity of light or radiation gradually or in… … Useful english dictionary
wedge — wedgelike, adj. /wej/, n., v., wedged, wedging. n. 1. a piece of hard material with two principal faces meeting in a sharply acute angle, for raising, holding, or splitting objects by applying a pounding or driving force, as from a hammer. Cf.… … Universalium
wedge photometer — noun : an instrument for comparing stellar brightnesses on the basis of the calibrated progressive absorption of a neutral density optical wedge or wedge of glass … Useful english dictionary
wedge spectrograph — noun : a spectrograph in which the light is modulated by an optical wedge … Useful english dictionary
Optical isolator — This article is about the optical component. For the optoelectronic component, see Opto isolator. An optical isolator, or optical diode, is an optical component which allows the transmission of light in only one direction. It is typically used to … Wikipedia
Optical mineralogy — A petrographic microscope, which is an optical microscope fitted with cross polarizing lenses, a conoscopic lens, and compensators (plates of anisotropic materials; gypsum plates and quartz wedges are common), for crystallographic analysis.… … Wikipedia
Wedge prism — The wedge prism is an optical element typically made of glass ground at slight angles to refract light passing through it from the smaller width side of the prism to the thicker width side of the prism. By refracting the light, the wedge prism… … Wikipedia
Optical vortex — An optical vortex (also known as a screw dislocation or phase singularity) is a zero of an optical field, a point of zero intensity. Research into the properties of vortices has thrived since a comprehensive paper by Nye and Berry, in 1974,[1]… … Wikipedia
Wedge filter — A wedge filter is an optical filter so constructed that its thickness varies continuously or in steps in the shape of a wedge. The filter is used to modify the intensity distribution in a radiation beam … Wikipedia
