Light beam scanning device generating a stable synchronizing sig

Details Light beam scanning device generating a stable synchronizing sig Light beam scanning device generating a stable synchronizing sig

1988-01-14

1989-08-01

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

358494, H01J 516, H01J 4014

Patent

active

048535354

ABSTRACT:
A light beam scanning device includes a reference grid plate, a resonant light deflector for deflecting a light beam to cause the light beam to scan the reference grid plate through an f.theta. lens for thereby enabling the reference grid plate to produce a pulse signal, and a PLL circuit for generating a synchronizing signal from the pulse signal to read or record image information. The reference grid plate has slits defined at intervals, the slit intervals in that area of the reference grid plate which produces a pulse signal that is not directly contributed to the recording or reading of the image information being progressively smaller toward an end of the reference grid plate according to the scanning speed of the light beam.

REFERENCES:
patent: 4578577 (1986-03-01), Noguchi et al.
patent: 4587420 (1986-05-01), Noguchi et al.
patent: 4667099 (1987-05-01), Arai et al.
patent: 4760251 (1988-07-01), Shimada et al.

Affiliated with

Also associated with

Rating

Light beam scanning device generating a stable synchronizing sig does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light beam scanning device generating a stable synchronizing sig, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light beam scanning device generating a stable synchronizing sig will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-132941