Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1976-11-03
1978-08-22
Corbin, John K.
Optics: measuring and testing
Range or remote distance finding
With photodetection
356199, G02B 2717
Patent
active
041085337
ABSTRACT:
Apparatus for combining light emanating from a linear scanning field on a relatively small receiver via an optical arrangement producing a scanning light spot with a light ray scanning device onto which a light beam impinges, the arrangement further having optical elements of the transmitting beam of rays located in front of the light ray scanning device, a transmitting concave mirror and a receiving concave mirror extending in the scanning direction, and a cylindrical lens parallel to the scanning field and extending in the vicinity of the latter, the transmitting and receiving beams of rays being separated by pupil separation. There is further provided plane mirrors arranged between the concave mirrors and light ray scanning device for bending the receiving beam of rays perpendicular to the scanning direction and in the direction of the intersection point of the optical axis of the transmitting beam of rays located on the light ray scanning device by such an amount that it still strikes the light ray scanning device, but passes beside the optical elements. The curved surface of the cylindrical lens is ground planar in the area of the entry of the transmitting beam of rays, and the receiving concave mirror is displaced relative to the transmitting concave mirror in the sense of shortening the optical path of the receiving light.
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patent: 3138650 (1964-06-01), Andrychuk
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Sick Erwin
Staimer Angelika
Corbin John K.
de los Reyes B. W.
Erwin Sick Gesellschaft mit beschrankter Haftung Optik-Elektroni
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