Stationary hologram scanner

Details Stationary hologram scanner Stationary hologram scanner

1986-03-28

1988-04-19

Arnold, Bruce Y.

350 63, 350 65, 350 67, G02B 2610

Patent

active

047384999

ABSTRACT:
A stationary hologram scanner according to the present invention divides one light beam into a plurality of parts (switched-over in a time division manner) prior to the incidence of the light beam on the hologram disk, so that a construction, in which only one mirror is installed between the hologram disk and a reading window, is possible, thereby reducing a cross-sectional area of one side portion of an apparatus in comparison with the conventional apparatus; as a result, an operator can reasonably operate the scanner in a seated posture with the operator's knees below this portion.

REFERENCES:
patent: 4647143 (1987-03-01), Yamazaki et al.
Printed Publication, "Holography in the IBM 3687 Supermarket Scanner", IBM J. Res. Develop., vol. 26, No. 2, pp. 228-234, Mar. 1982--(Dickson et al.).

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