Retroreflectance measurement system

Details Retroreflectance measurement system Retroreflectance measurement system

1977-04-20

1979-10-23

Corbin, John K.

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

356371, 356400, G01B 900, G01B 1130

Patent

active

041719107

ABSTRACT:
A retroreflector evaluation system is disclosed as incorporating a laser and a plurality of laser light processing optical elements associated therewith in such manner as will permit the making of reflectance measurements at any or all points on the surface of retroreflective or other reflective samples or devices, thereby providing an indication of the intensity, uniformity, and other reflectance characteristics which determine the quality thereof.

REFERENCES:
patent: 1507212 (1924-09-01), Silberstein
patent: 3406292 (1968-10-01), Geier et al.
patent: 3448280 (1969-06-01), Blitchington et al.
patent: 3761179 (1973-09-01), Plummer et al.
patent: 3892494 (1975-07-01), Baker et al.
patent: 3975102 (1976-08-01), Rosenfeld et al.
patent: 4097751 (1978-06-01), Egan et al.
Zurasky, J. L. "Cube Corner Retroreflector Test and Analysis" App. Optics, -1976, pp. 445-452.

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