Laser beam shutter and beam indicator

Details Laser beam shutter and beam indicator Laser beam shutter and beam indicator

1976-06-25

1978-07-25

Moskowitz, Nelson

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

250229, 250230, 350266, H01S 310

Patent

active

041032616

ABSTRACT:
A combined laser beam shutter and beam "on-off" indicator is disclosed. A rotatable shutter pin is mounted in a beam interrupting positon with the shutter having an aperture thereon which, when the pin is rotated to the proper position, permits passage of the light therethrough. The shutter pin is adapted, when in closed position, to reflect visible light caused by the laser to a position for observation thereby indicating that the beam is "on".

REFERENCES:
patent: 1457426 (1923-06-01), Cameron
patent: 2672841 (1954-03-01), Nitzberg
patent: 3619037 (1971-11-01), Pugh
patent: 3902142 (1975-08-01), Van der Berg
patent: 3931593 (1976-01-01), Marshall

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