Diffractive/refractive lenslet array

Details Diffractive/refractive lenslet array Diffractive/refractive lenslet array

1996-05-23

1997-12-09

Le, Que

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250216, 250237R, 359823, H01J 4014

Patent

active

056963718

ABSTRACT:
A short focal length image sensor is formed with an array of photosensor sites and a lenslet array. The lenslet array is comprised of a number of abutting lenslets corresponding in number to the number of photosensor sites. Each lenslet has its optical axis decentered as a function of its radial position in the lenslet array so that each lenslet views a different segment of a total field of view. A field limiting baffle, comprised of one or more separated aperture plates, is included with the center of the apertures in each aperture plate being positioned to lie along the optical axis of a respective lenslet.

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Proceedings, SPIE--The International Society for Optical Engineering, "International Conference on Applications of Optical Holography," Jun. 5-7, 1995, vol. 2577, pp. 126-129.

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