Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1995-06-01
1996-03-12
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
359216, H01J 314
Patent
active
054988691
ABSTRACT:
Facet-to-facet pyramidal wobble is corrected without resorting to cylindrical optics by adapting agile beam concepts to provide real-time control of the light beam position on the photoreceptor. The agile beam is provided by either or both of a variable wavelength light source or a variable index of refraction prism. The position of the light beam is determined by either or both of a super linear position detector directly detecting the position of the light beam, or a facet detector and a look-up table for indirectly estimating the position of the light beam. By actively compensating for pyramidal wobble, the passive but expensive and difficult-to-position cylindrical optics can be replaced with cheap and easy-to-position spherical optics.
REFERENCES:
patent: 4203672 (1980-05-01), Smith, Jr.
patent: 4386272 (1983-05-01), Check, Jr. et al.
patent: 4733064 (1988-03-01), Ishikawa
patent: 4950888 (1990-08-01), Hamada
patent: 4992655 (1991-02-01), Shelander
patent: 5103091 (1992-04-01), Hirose et al.
patent: 5155619 (1992-10-01), Fellows
patent: 5204523 (1993-04-01), Appel et al.
patent: 5208456 (1993-05-01), Appel et al.
patent: 5212381 (1993-05-01), Appel et al.
patent: 5245181 (1993-09-01), Cho
patent: 5264869 (1993-11-01), Appel et al.
Handbook of Optics, vol. II, Devices, Measurements, and Properties, Sponsored by the Optical Society of America, 1995, pp. 6.10-6.11.
F. Bestenreiner et al., "Visibility and Correction of Periodic Interference Structures in Line-by-Line Recorded Images", Journal of Applied Photographic Engineering, vol. 2, No. 2, Spring 1976, pp. 86-92.
Handbook of Optics, vol. II, Devices, Measurements, and Properties, Sponsored by the Optical Society of America, 1995, pp. 12.2 and 12.26-12.29.
ISOMET Application Note, "All about Bragg Angle Errors in Acousto-Optic Modulators & Deflectors, Isomet Corporation, Sprigfield, Virginia", Sep. 1977.
Leo Bademian, "Acousto-Optical Deflectors", Isomet Corporation, Springfield, Virginia, May 1993.
Filinski et al., "Fast Dispensive Beam Deflectors and Modulators" IEEE Journal of Quantum Electronics, vol. QE-18 No. 7, Jul. 1982.
Appel James J.
Paoli Thomas L.
Nichols Steven L.
Westin Edward P.
Xerox Corporation
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