Laser control system, optical scanning device, and image...

Details Laser control system, optical scanning device, and image... Laser control system, optical scanning device, and image...

2007-12-21

2010-11-16

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular component circuitry

For driving or controlling laser

C372S029012, C372S029021, C372S038100, C372S038010, C372S038040, C372S038070

Reexamination Certificate

active

07835412

ABSTRACT:
A control system for a laser source driven by a direct current drive voltage includes a system control board, a laser driver, and a power stabilizing circuit. The system control board is configured to output a control signal based on input data. The laser driver is coupled to the laser source and to the system control board. The laser driver is configured to drive the laser source with the drive voltage to generate a laser beam modulated according to the control signal. The power stabilizing circuit is configured to regulate the drive voltage to a given constant level. The power stabilizing circuit includes a first circuit and a second circuit. The first circuit is configured to boost the drive voltage to a level exceeding the given constant level. The second circuit is configured to limit the boosted drive voltage to the given constant level.

REFERENCES:
patent: 6154473 (2000-11-01), Watanabe
patent: 6310901 (2001-10-01), Mahmoudi et al.
patent: 6842469 (2005-01-01), Nagara
patent: 2006/0291512 (2006-12-01), Borschowa
patent: 2006-166349 (2006-06-01), None

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