Variable optical attenuator

Details Variable optical attenuator Variable optical attenuator

1987-04-21

1990-05-15

Arnold, Bruce Y.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

350314, 350275, 250234, 356434, 356 4, 358228, G02B 522

Patent

active

049252739

ABSTRACT:
A variable optical attenuator includes incoming and outgoing surfaces which are inclined relative to each other so that light reflected at an attenuating coating on one or both surfaces is reflected away from the optical path to avoid interference effects. The attenuating coating varies in density depending upon the angle of rotation of the attenuator. Variable attenuation may be achieved by rotating the attenuator a predetermined amount under microprocessor control.

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patent: 4560252 (1985-12-01), Mori
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Camera, nr. 4 Apr. 1959, Schweiz fr. 2.50, Deutschland DM3., Photo-Nachrichten, p. 44.
Einfuhrung in die theoretische Physik, Dr. Clemens Schaefer, p. 548.
Laser & Applications, May 1984, pp. 91-93, Attenunator Applications for Fiberoptics.

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