Coherent light generators – Particular resonant cavity – Specified output coupling device
Patent
1989-09-08
1991-04-30
Scott, Jr., Leon
Coherent light generators
Particular resonant cavity
Specified output coupling device
372 24, H01S 308
Patent
active
050124854
ABSTRACT:
A laser beam scanning apparatus for beam scanning a medium with the laser beam being deflected by a deflector, comprising a first mirror provided for reflecting the laser beam after deflected by the deflector and a second mirror provided for folding a light path between the first mirror and the medium in such a relationship that a first light path between the deflector and the first mirror is not intersected with a second light path between the second mirror and the medium. The first and second mirrors are arranged so as to be movable in parallel respectively for adjusting a length of scanning line on the recording medium, wherein either one of the first and second mirrors is moved when adjusting and said moved mirror has a lesser shift amount of the scanning line on the recording medium in a direction perpendicular to the scanning line as compared with the other mirror.
REFERENCES:
patent: 4731623 (1988-03-01), Oda et al.
patent: 4829322 (1989-05-01), Ohmori
Jr. Leon Scott
Minolta Camera Kabushiki Kaisha
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