Electroabsorptive asymmetrical fabry-perot modulator array for l

Details Electroabsorptive asymmetrical fabry-perot modulator array for l Electroabsorptive asymmetrical fabry-perot modulator array for l

1993-11-29

1995-05-09

Hellner, Mark

Optical: systems and elements

Optical modulator

Light wave temporal modulation

347255, 347136, G01D 1514

Patent

active

054145538

ABSTRACT:
There is disclosed a line printing system of this invention which utilizes an array of asymmetrical Fabry-Perot light valves for simultaneously transferring all pixel information of one raster line onto a photoreceptor. The number of elements of the light valve array used in this invention is equal to the number of pixels on a raster line. The pixel information is applied to elements of the light valve array in a parallel format with information representing each pixel applied to one elemental light valve of the array. The array is illuminated by a wedge-shaped incident light beam forming a focussed line image. Depending on the information state of each pixel, each corresponding element will be activated to absorb incident light or left in its neutral state to reflect the light. Light reflected by neutral elements will be directed onto the photoreceptor. In this fashion, the photoreceptor simultaneously receives the pixel information for the entire raster line. In another mode, the elements will be activated to reflect the light beam and will be left in their neutral state to absorb the light beam.

REFERENCES:
patent: 4376568 (1983-03-01), Sprague
patent: 4377753 (1983-03-01), Mir
patent: 4413270 (1983-11-01), Sprague
patent: 4801194 (1989-01-01), Agostinelli et al.
patent: 5081597 (1992-01-01), Kowalski
patent: 5157538 (1992-10-01), Soref
patent: 5327274 (1994-07-01), Yamaguchi

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