Optical apparatus

Details Optical apparatus Optical apparatus

1977-11-22

1980-01-01

Hille, Rolf G.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356222, 356225, 250227, G02B 514, G01J 142

Patent

active

041813987

ABSTRACT:
A light smoothing device for rendering a non uniform distribution of light more uniform especially suited for use in line scanning in combination with a light conducting rod which transmits light incident on its surface to its end faces for subsequent detection. The smoothing device has an optical passage with a reflecting interior surface an inlet to the passage and a detector at the other end of the passage. The passage ensures at least part of the light entering the inlet is reflected prior to incidence on the detector.
A number of forms of optical passage are disclosed having various reflecting segments of convex, plain or concave curvature.

REFERENCES:
patent: 2945958 (1960-07-01), Morris
patent: 3317738 (1967-05-01), Piepenbrink et al.
patent: 3728548 (1973-04-01), Pinior
patent: 4085322 (1978-04-01), Sick
M. M. Chen et al., "The Use of a Kaleidoscope to Obtain Uniform Flux . . . " Applied Optics, vol. 2, No. 3, Mar. 1963, pp. 265-271.
L. B. Richards, "Photodetector As Function Detector," IBM Tech Disclosure Bulletin, vol. 13, No. 3, Aug. 1970, pp. 591-592.

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