Optical scanning device

Details Optical scanning device Optical scanning device

1980-03-03

1982-04-20

Corbin, John K.

G02B 2717

Patent

active

043256015

ABSTRACT:
An optical scanning device shifting an optical spot on the scanning surface by rotating a hologram record medium on which a hologram is recorded, is so improved that, in recording a hologram, the incident angle of the principal ray of an object light and the incident angle of the principal ray of a reference light are so defined as to satisfy a particular condition, whereby even if the hologram record is inclined, the optical spot is not displaced.

REFERENCES:
patent: 3953105 (1976-04-01), Ih
patent: 4235504 (1980-11-01), Ikeda et al.
patent: 4239326 (1980-12-01), Kramer
patent: 4243293 (1981-01-01), Kramer

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