Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent
1985-07-12
1987-11-24
Arnold, Bruce Y.
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
250578, 35016216, 3501622, 35016222, 35821313, G02B 518, G02B 2744, H01J 4014, H04N 314
Patent
active
047084367
ABSTRACT:
An optical imager includes a sensor and a diffraction lenticular array. The sensor includes a substrate of a semiconductor material having a pair of opposed major surfaces and a plurality of photodetectors arranged in a plurality of columns along one of the major surfaces. The diffraction lenticular array includes a plurality of stripes of a material which will diffract the radiation being sensed. The stripes are arranged in a plurality of repetitive patterns with each pattern being formed of a plurality of spaced, parallel stripes extending longitudinally along a column of the detectors. The pattern of the stripes has a large spacing between the stripes at the center of the pattern and smaller spacing at the edges of the pattern. The stripes may be on a separate substrate of a material which is transparent to the radiation being detected or directly on the major surface of the semiconductor substrate.
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d'Auria, L., et al, "Photolithographic Fabrication of Thin-Film Lenses", Optics Communications, vol. 5, No. 4, Jul. 1972, pp. 232-235.
Genovese, F. C., et al, "Phase Plate Lens for a Multiple Image Lens System", IBM Technical Disclosure Bulletin, vol. 8, No. 12, May, 1966, pp. 1796-1797.
"Design and Performance of 64.times.128 Element PtSi Schottky-Barrier Infrared Charge-Coupled Device (IRCCD) Focal Plane Array", W. F. Kosonocky et al., SPIE, vol. 344, Infrared Sensor Technology, 1982, pp. 66-77.
"Silicon Cylindrical Lens Arrays for Improved Photoresponse in Focal Plane Arrays", H. G. Erhardt et al., SPIE, vol. 501, State-of-the-Art Imaging Arrays and Their Applications, 1984, pp. 165-172.
Arnold Bruce Y.
Cohen Donald S.
Edmondson D.
Limberg Allen LeRoy
RCA Corporation
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