Coherent beam scanner having a planar hologram illuminated by a

Details Coherent beam scanner having a planar hologram illuminated by a Coherent beam scanner having a planar hologram illuminated by a

1979-02-05

1981-11-10

Smith, Alfred E.

350 62, G02B 2717

Patent

active

042994373

ABSTRACT:
A coherent beam scanner provides a scan along a straight line by using a linearly moving planar hologram illuminated with a convergent or divergent beam. The hologram is formed by a first beam divergent from a first point on one side of the hologram and a second beam that is coherent with the first beam and convergent at a second point on the other side of the hologram; preferably, the beam axes of the first and second beams are made to form a predetermined acute angle with each other.

REFERENCES:
patent: 3578845 (1971-05-01), Brooks et al.
patent: 3795768 (1974-03-01), Locke
patent: 4073566 (1978-02-01), Noguchi
patent: 4113343 (1978-09-01), Pole et al.
patent: 4121882 (1978-10-01), White
Pole et al., "Holographic Laser Beam Deflector", App. Opt., vol. 14, No. 4, 4-75, pp. 976-980.
Cindrich, "Image Scanning by Rotation of a Hologram", Applied Optics, vol. 6, No. 9, Sep. 1967, pp. 1531-1534.
Lee, "Holographic Grating Scanners with Aberration Corrections", Applied Optics, 16(5), May 1977, pp. 1392-1399.

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