Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1990-09-11
1992-05-12
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356445, G01N 2186
Patent
active
051130823
ABSTRACT:
An optical instrument for measuring characteristics of a specimen comprises a light source and an axial reflective member spaced from the light source to define an optical axis for the instrument along a line between the light source and the reflective member. A non-axial reflector is positioned laterally of the reflective member and laterally of the optical axis to receive a beam reflected from the axial reflective member. The non-axial reflector is oriented to reflect the beam onto the specimen. The instrument also contains a segmented photosensor and a second non-axial reflector to receive the beam reflected from the specimen and reflect it onto the segmented photosensor. The photosensor is positioned in the instrument to receive the beam from the second non-axial reflector. A conductor connected to each segment of the photosensor is provided for carrying current to signal conditioning hardware used to compare the current from the segments of the photosensor to provide information concerning the specimen.
REFERENCES:
patent: 3692414 (1972-09-01), Hosterman et al.
patent: 3918816 (1975-11-01), Foster et al.
patent: 4204725 (1980-05-01), Balasubraminson
patent: 4548504 (1985-10-01), Morander
patent: 4552458 (1985-11-01), Lowne
patent: 4589773 (1986-05-01), Ido et al.
patent: 4622502 (1986-11-01), Maruo
patent: 4647209 (1987-03-01), Neukomm et al.
patent: 4676653 (1987-06-01), Strohmeier et al.
patent: 4767934 (1988-08-01), Stauffer
patent: 4770536 (1988-09-01), Golberstein
patent: 4775235 (1988-10-01), Hecker et al.
patent: 4782239 (1988-11-01), Hirose
patent: 4789243 (1988-12-01), Mathew
patent: 4808003 (1989-02-01), Kessels
patent: 4874246 (1989-10-01), Den Boef
Allen Stephone B.
Harmon James V.
Nelms David C.
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