Semiconductor laser output control device

Details Semiconductor laser output control device Semiconductor laser output control device

1986-01-21

1987-05-05

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Optical output stabilization

372 38, 372 26, H01S 313

Patent

active

046637605

ABSTRACT:
A semiconductor laser output intensity control device is provided in a laser beam scanning system, such as a laser printer. A laser beam emitted from a semiconductor laser is modulated by image information and scanned across a photosensitive member for forming an image thereon. The present output intensity control device employs an up/down counter whose count determines the level of driving current to be applied to a laser driver which drives the semiconductor laser. The up/down counter changes its count either up or down depending on the magnitude of the output intensity of the laser beam as compared with a reference level. The present device includes a control circuit which prevents the power setting operation of the laser from taking place during a scanning time period in which the photosensitive member is scanned by the laser beam.

REFERENCES:
patent: 4516242 (1985-05-01), Yokota

Affiliated with

Also associated with

Rating

Semiconductor laser output control device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor laser output control device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor laser output control device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2402125