Apparatus for the pointwise scanning of an information surface

Details Apparatus for the pointwise scanning of an information surface Apparatus for the pointwise scanning of an information surface

H - Electricity

04

N

352/32.21

H04N 5/78 (2006.01) G02B 27/42 (2006.01) G11B 7/005 (2006.01) G11B 7/08 (2006.01)

Patent

CA 1145040

23-4-1979 1 PHN 9120 ABSTRACT: "Apparatus for the pointwise scanning of an information surface" An apparatus is described for the pointwise scanning of an information surface. By arranging an ob- servation objective system asymmetrically relative to a zero-order subbeam of the radiation coming from the in- formation surface, and by utilizing a detector whose dimen- sion in the scanning direction is small, the resolution can be increased.

327035

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