Laser beam transmitting apparatus

Details Laser beam transmitting apparatus Laser beam transmitting apparatus

1988-08-26

1991-05-28

Arnold, Bruce Y.

350618, G02B 2302

Patent

active

050188488

ABSTRACT:
An apparatus for transmitting a laser beam supplied from a laser source to a working apparatus comprises a plurality of reflecting mirrors disposed in series between the laser source and the working apparatus to change the direction of the laser beam, a condensing optical system provided to condense the laser beam on the reflecting surface of the first one of the reflecting mirrors, and a relay optical system including first and second imaging devices disposed between the first reflecting mirror and the second reflecting mirror subsequent thereto in the direction of travel of the laser beam. The first imaging devices is disposed between the first reflecting mirror and the second imaging devices and has a forward focus substantially coincident with the reflecting surface of the first reflecting mirror, and the second imaging device is disposed between the first imaging device and the second reflecting mirror and has a rearward focus substantially coincident with the reflecting surface of the second reflecting mirror.

REFERENCES:
patent: 3586413 (1971-06-01), Adams
patent: 3625585 (1971-12-01), Beiser
patent: 4299438 (1981-11-01), Mihoura
patent: 4653903 (1987-04-01), Torigoe et al.
patent: 4796038 (1989-01-01), Allen et al.

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