Laser light intensity control device, laser light intensity...

Details Laser light intensity control device, laser light intensity... Laser light intensity control device, laser light intensity...

2009-01-22

2010-10-26

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular beam control device

Optical output stabilization

C372S029010

Reexamination Certificate

active

07822083

ABSTRACT:
A disclosed laser light intensity control device includes a semiconductor laser configured to scan a photoconductor by emitting laser beams and form an electrostatic latent image, a temperature detection circuit configured to detect a temperature of the semiconductor laser, a light intensity detection circuit configured to detect a light intensity of the laser beams emitted from the semiconductor laser, a first drive circuit configured to supply the semiconductor laser with a first current that drives the semiconductor laser, a second drive circuit configured to supply the semiconductor laser with a second current that is superimposed on the first current, and a control circuit configured to control the first drive circuit and the second drive circuit.

REFERENCES:
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patent: 5392303 (1995-02-01), Shiozawa et al.
patent: 6369926 (2002-04-01), Lyu et al.
patent: 6845109 (2005-01-01), Lee et al.
patent: 60-234389 (1985-11-01), None
patent: 2002-321402 (2002-11-01), None

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