Multi-beam optical system using lenslet arrays in laser multi-be

Details Multi-beam optical system using lenslet arrays in laser multi-be Multi-beam optical system using lenslet arrays in laser multi-be

1994-07-29

1997-04-08

Fuller, Benjamin R.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

347237, B41J 247, B41J 2435

Patent

active

056192452

ABSTRACT:
A multi-beam laser printer for printing on light-sensitive thermal media where a monolithic array of independently modulated diode lasers is used to reduce the size of the printer. A closely spaced array of printing spots is produced from the separate diode lasers using two lenslet arrays having power in the array direction. To correct for non-straightness of the laser array, an optical arrangement is used to conjugate the far field of the lasers in a direction perpendicular to the array direction of the printing plane so that the laser array produces a straight line of printing spots on the light-sensitive medium.

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