Printing system and method using a staggered array spatial light

Details Printing system and method using a staggered array spatial light Printing system and method using a staggered array spatial light

1995-04-19

1998-05-19

Yockey, David F.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

359291, 359292, B41J 247, G02B 2600

Patent

active

057542171

ABSTRACT:
A system 10 for independently illuminating a plurality of areas on an object 26 such as a printer drum is disclosed herein. The system 10 includes a light source 12 such as an LED or a plurality of LEDs. A spatial light modulator 14, which may be a movable mirror device, for receives light from the light source 12 and reflects selected portions of the light. The spatial light modulator 14 includes at least n rows of independently modulated pixels wherein a mask prevents more than 1
th of each the rows from receiving and reflecting light at any point in time. The light from the spatial light modulator 14 is imaged (e.g., with imaging lens 24) onto rows and columns of the object 26 to be illuminated. The object 26 is illuminated in a way that each column is illuminated by a corresponding row of pixels.

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patent: 5430524 (1995-07-01), Nelson
patent: 5459492 (1995-10-01), Venkateswar

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