System of photodetection and associated process for analyzing a

Details System of photodetection and associated process for analyzing a System of photodetection and associated process for analyzing a

1997-03-04

1999-03-30

Font, Frank G.

Optics: measuring and testing

Photometers

Photoelectric

356225, G01J 142

Patent

active

058895868

ABSTRACT:
A photodetection system that analyzes a luminous flux (15) received on a line (10). The photodetection system includes an opaque mask (4) provided with at least one aperture (6), placed in the vicinity of the line, driver (7) designed to rotate the mask, detector (8, 9) of an angular position of reference of the mask, a field lens (12) concentrating the luminous flux (16) crossing the line onto a photodetector (1), and a processing unit (3) connected to the photodetector, for analyzing the luminous flux to yield values for several points on the line.

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patent: 5148231 (1992-09-01), Ishiguro et al.
patent: 5243401 (1993-09-01), Sinya
patent: 5408311 (1995-04-01), Suzuki et al.

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