Reflective holographic scanning system insensitive to spinner wo

Details Reflective holographic scanning system insensitive to spinner wo Reflective holographic scanning system insensitive to spinner wo

Filed on

1979-07-02

Date issued

1981-12-08

Examiner

Lee, John D.

Other Related Categories

350 67, G02B 2717

Type

Patent

Status

active

Patent number

043044590

Description

ABSTRACT:
A holographic scanning system includes a reflective type holographic spinner having a plurality of diffraction gratings on its surface. A reconstruction wavefront incident on a non-grating surface of the spinner is reflected into a corrective optical element which displaces and redirects the wavefront so that it is incident at the grating at an angle corrected for the effects of spinner wobble.

REFERENCES:
patent: 3614193 (1971-10-01), Beiser
patent: 3721487 (1973-03-01), Pieuchard et al.
patent: 3897132 (1975-07-01), Meeussen et al.
patent: 3953105 (1976-04-01), Ih
patent: 4067639 (1978-01-01), Kramer
patent: 4094576 (1978-06-01), Heiling
patent: 4239326 (1980-12-01), Kramer
patent: 4243293 (1981-01-01), Kramer

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