Optical beam scanning device with hologram disc

Details Optical beam scanning device with hologram disc Optical beam scanning device with hologram disc

1995-06-28

1997-11-25

Dzierzynski, Paul M.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 17, 359209, 235457, G02B 532, G02B 2608

Patent

active

056918313

ABSTRACT:
A laser source and a converging lens are provided so that a laser beam emitted from the converging lens travels substantially parallel to the surface of a hologram disc. A incidence mirror is provided for causing the laser beam emitted from the lens to fall incident on the hologram disc at an angle of incidence of about 45 degrees. By merely moving or rotating the incidence mirror, the position of and the angle of incidence of laser beam to the hologram disc can be easily adjusted.

REFERENCES:
patent: 4505537 (1985-03-01), Funato
patent: 4647143 (1987-03-01), Yamazaki et al.
patent: 4761046 (1988-08-01), Funato
patent: 4794237 (1988-12-01), Ferrante
patent: 5182659 (1993-01-01), Clay et al.
patent: 5223957 (1993-06-01), Itoh et al.
patent: 5295004 (1994-03-01), Hasegawa et al.
Research Disclosure, "Holographic Scanner with Compensation for Substrate Non-Parallelism", anonymous, Feb. 1985 No. 250.

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