Method and apparatus for acoustic supervision of adjustment oper

Details Method and apparatus for acoustic supervision of adjustment oper Method and apparatus for acoustic supervision of adjustment oper

1985-06-11

1987-11-17

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

356141, 356152, 356400, G01B 1126

Patent

active

047075970

ABSTRACT:
The present invention relates to a method and to an apparatus for acoustic supervision of the adjustment of a light bundle with respect to position and/or direction. A measuring surface lying in the beam path of the light bundle is divided into sectors. Apexes of centering angles of the sectors define a rated position. Light components of the light bundle incident into the individual sectors are measured opto-electronically as a measure of the positional deviations. Oscillations are generated for the individual sectors. Respective parameters of the oscillations are modified dependent on the measured positional deviations, and the modified oscillations are made audible as measuring tones. For the directional adjustment of the light bundle, the light bundle is focused onto the measuring surface whereby apexes of the centering angles of the sectors define the point of penetration of the rated direction through the measuring surface.

REFERENCES:
patent: 3423593 (1969-01-01), Chinnock
patent: 3723013 (1973-03-01), Stirland et al.
patent: 3739174 (1973-06-01), Gloge
patent: 3907435 (1975-09-01), Roodvoets
patent: 4020340 (1977-04-01), Cooke
patent: 4081216 (1978-03-01), Cook
patent: 4126834 (1978-11-01), Coppock
patent: 4603975 (1986-08-01), Cinzori
Applied Optics, vol. 18, No. 17, Sep. 1, 1979, "Acoustooptic Modulator Intensity Servo" by Howard P. Layer, pp. 2947-2949.

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