Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1997-12-02
1999-05-25
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
359197, G02B 2600
Patent
active
059071532
ABSTRACT:
Radiation beam scanning apparatus comprises a rotatable reflector for causing an incident radiation beam to undergo a scanning movement; and a compensating device on to which the radiation beam impinges before reaching the rotating reflector. The compensating device modifies the optical path of circumferentially spaced portions of the beam upstream of the reflector, in phase with the rotation of the reflector, so as to compensate for distortions in the reflected beam introduced by the reflector.
REFERENCES:
patent: 5281812 (1994-01-01), Lee et al.
patent: 5461601 (1995-10-01), Shinada et al.
patent: 5505807 (1996-04-01), Min et al.
patent: 5532730 (1996-07-01), Akanabe
Fujifilm Electronic Imaging Ltd.
Luu Thanh X.
Westin Edward P.
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