G-hardened optical alignment sensor

Details G-hardened optical alignment sensor G-hardened optical alignment sensor

1997-12-02

1999-06-01

Buczinski, Stephen C.

Optics: measuring and testing

Angle measuring or angular axial alignment

Apex of angle at observing or detecting station

3561415, G01B 1126, G01C 100

Patent

active

059092750

ABSTRACT:
An optical alignment device having a sensor housing with obstructing geomy which restricts the amount of sunlight that enters the sensor and impinges upon a photoelectric cell within the sensor body. The restriction of light properly maintains a constant area of illumination of the photoelectric cell over a wide range of incident angles about the insensitive axis. Variations in incident angle about the sensitive axis produces a significant change in illumination area for small changes in the incident angle. Thus, the device produces a significant change in output with respect to alignment with its sensitive axis and an invariant output with respect to alignment to its insensitive axis.

REFERENCES:
patent: 3205361 (1965-09-01), Albus
patent: 3951550 (1976-04-01), Slick
patent: 4410270 (1983-10-01), Zuckerman
patent: 4804832 (1989-02-01), Gardner
patent: 4824245 (1989-04-01), Gardner et al.

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