Beam control device utilizing beam having a specific direction o

Details Beam control device utilizing beam having a specific direction o Beam control device utilizing beam having a specific direction o

1988-04-27

1991-01-29

McElheny, Jr., Donald

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

G11B 700

Patent

active

049891987

ABSTRACT:
Method and device of beam control for stabilizing the laser beam output is controlled by adjusting the driving current of laser beam source. To adjust the driving current output light from laser beam source is detected by a photo detector. This output light has the same specific polarization components the light used to record or read from a magnetic optical disc. The detected light is converted into an electric signal corresponding to the light intensity. This electric signal is compared with a specified reference level to determine the change in the output level of the laser source due to a change in the ambient temperature.

REFERENCES:
patent: 4583210 (1986-04-01), Winslow
patent: 4611318 (1986-09-01), Winslow
patent: 4660189 (1987-04-01), Tsukamura et al.
patent: 4750161 (1988-06-01), Takeuchi et al.
patent: 4796267 (1989-01-01), Yamada et al.
patent: 4881216 (1989-11-01), Deguchi et al.

Affiliated with

Also associated with

Rating

Beam control device utilizing beam having a specific direction o does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Beam control device utilizing beam having a specific direction o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beam control device utilizing beam having a specific direction o will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-819708