Flying spot scanner

Details Flying spot scanner Flying spot scanner

1995-02-14

1996-09-10

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359216, 359217, 359232, 359233, 250236, 347261, 358302, G02B 2608

Patent

active

055551238

ABSTRACT:
A moving mask is incorporated in a flying spot scanner to reduce flare. The mask obscures all portions of the object being scanned, except for a small region surrounding the point currently being scanned. The mask moves to maintain registration with the flying spot. A rotating slotted disk with curved slots in cooperation with a fixed mask having a slot is described as one mechanism for achieving such masking.

REFERENCES:
patent: 2064475 (1936-12-01), Ives
patent: 3970359 (1976-07-01), Starkweather
patent: 4040095 (1977-08-01), Abrams
patent: 4578688 (1986-03-01), Okuno
patent: 4739416 (1988-04-01), Manian
patent: 4828384 (1989-05-01), Plankenhorn et al.
patent: 4861983 (1989-08-01), Sasada et al.
patent: 5101295 (1992-03-01), Lichtman et al.

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