Accession Number : ADA131833
Title : Holographic Zoom Lens: Model HZL-C-1000, Design Description and Operations Manual.
Corporate Author : TAI CORP HUNTSVILLE AL
PDF Url : ADA131833
Report Date : Sep 1981
Pagination or Media Count : 24
Abstract : This prototype system, Holographic Zoom Lens HZL-C-1000, represents the first hardware version of a stepwise holographic zoom lens described by B.D. Guenther and C. D. Leonard in Technical Report, T-79-12 for the U.S. Army Missile Research and Development Command, 1978. As stated in that report ... Optical components may be classified into the following three groups according to the mechanism by which they operate. 1) Refractive Components - This type of component uses the fact that the direction of light ray will change according to Snell's law when the ray encounters a change in index of refraction (i.e., a change in the speed of light). Conventional lenses and prisms are examples of this type of device. The operation of the device depends upon the curvature of the surface and the index of refraction of the material. 2) Relfective Components - This type of component uses the fact that light is reflected from a metal surface (or a surface where the index of refraction changes) at an angle equal to the angle of incidence. Astronomical telescopes and shaving mirrors are examples of this type of device. The operation of the device depends upon the shape of the surface and the optical properties of the surface material used. 3) Diffractive Components - This type of component uses the fact that light exhibits wave properties and, thus, interferes with itself. Gratings and holograms are examples of diffractive components.
Descriptors : *Zoom lenses, *Optical equipment components, *Guided missile components, Holography, Holograms, Optics, Laser guidance, Optical properties, Systems analysis, Lenses, Image processing
Subject Categories : Guided Missiles
Distribution Statement : APPROVED FOR PUBLIC RELEASE