Photonics Dictionary Definitions, Abbreviations, Illustrations, Terms listing by the letter I (Items 1 thru 40)

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Photonics Dictionary Return to Dictionary home There are 275 terms that begin with 'I' Currently displaying records 1 thru 40. You are in set 1 of 7 next set —> or select a set: 1 Iceland spar Also called calcite. A natural hexagonal crystal of calcium... 2 iconometer An instrument in which an object's image, produced by a... 3 iconoscope A camera tube that employs a high-velocity electron beam to... 4 ideal crystal A crystal that is devoid of any mosaic structure and that... 5 ideal filter Any filter in which the range of frequencies within a... 6 ideal polarization rotator A theoretical instrument conceived of as a box that... 7 ideal radiator See... 8 identification friend or foe (IFF) system A system that transmits and receives identification codes... 9 idiochromatic Pertaining to the possession of photoelectric... 10 illuminance Luminous flux incident per unit area of a surface; luminous... 11 illuminant Source of radiation defined or specified by its spectral... 12 illuminant metamerism Metamerism that occurs when the light source is... 13 illuminated Characteristic of a surface or object that has luminous... 14 illuminated magnifier A magnifying lens fitted with a battery-operated lamp by... 15 illuminated table A desklike apparatus with an opal glass surface illuminated... 16 illumination The general term for the application of light to a subject.... 17 illumination distribution Generally, the orientation of rays of light striking a... 18 illuminometer A photometric instrument used to measure the illumination... 19 image A reproduction of an object produced by light rays. An... 20 image amplifier An electronic system using, in general form, an evacuated... 21 image brightness The apparent luminance of the image as seen through an... 22 image centroid One of several ad hoc estimators that can be used to... 23 image comparison A method used in imaging to detect subtle differences... 24 image compression See data... 25 image conjugate See image... 26 image contrast The variation in the intensity of an image formed by an... 27 image converter An electron tube that employs electromagnetic radiation to... 28 image converter high-speed camera A camera that uses an image converter tube in such a way... 29 image correlation A machine vision technique that compares a template of the... 30 image definition area In computer graphics, the coordinated two-dimensional or... 31 image digitizer See digitizer; frame... 32 image dissector tube An electron tube that is used as a camera tube for a... 33 image distance The distance from the rear nodal point of a lens to the... 34 image enhancement The process by which an image is manipulated to increase... 35 image enhancement laser A semiconductor platelet laser that emits a coherent image... 36 image enhancing equipment Complex devices, often involving a computer, in which a... 37 image feature extraction See feature... 38 image iconoscope A camera tube similar in design to the iconoscope. However,... 39 image intensifier An electronic tube equipped with a light-sensitive electron... 40 image inverter A fiber optic device that rotates the image 180°... Currently displaying records 1 thru 40. You are in set 1 of 7 next set —> or select a set: Return to Dictionary home Click to view listings of terms Term of the moment... eye test apparatus - Instruments used by ophthalmologists and optometrists to study the eye. There are, for instance, the ophthalmoscope to observe and photograph the retina; the retinoscope and optometer to determine the refractive errors of the eye; the ophthalmometer (keratometer) to measure the radius of curvature of the cornea; the slit lamp and corneal microscope to examine the cornea itself; the perimeter (campimeter) to plot out blind areas on the retina; and various forms of stereoscopes used extensively to study vision and to exercise the eye muscles. See also color perception test equipment.	advertisement advertisement advertisement advertisement advertisement advertisement advertisement

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