Laser beam recording system

Details Laser beam recording system Laser beam recording system

1974-09-04

1976-08-03

Corbin, John K.

350 6, 350 35, G02B 2717

Patent

active

039725820

ABSTRACT:
A rotary polygonal mirror is used to horizontally deflect a laser beam emitted by a laser source. A cylindrical lens is provided between the laser source and the rotary polygonal mirror for vertically converging the laser beam to form a horizontally extending light spot on the face of the rotary mirror. The beam reflected by the face of the mirror is vertically collimated and horizontally converged by a convergent lens to form a vertically extending light spot on an elemental hologram plate. By the hologram plate, the beam is vertically converged. Behind the hologram plate is located another cylindrical lens for horizontally converging the beam. By the vertical convergence effect of the elemental hologram plate and the horizontal convergence effect of the second cylindrical lens, the laser beam incident to the elemental hologram plate is converged to a minute light spot on a focusing plane. A microfilm is located on the focusing plane and the laser beam scans the microfilm to record information thereon.

REFERENCES:
patent: 2543463 (1951-02-01), Malm
patent: 3701999 (1972-10-01), Congleton et al.
patent: 3762793 (1973-10-01), Ullstig
patent: 3870394 (1975-03-01), Ploeckl
Sincerbox, Formation of Optical Elements by Holography, Aug. 1967, vol. 10, No. 3, I.B.M. Technical Disclosure Bulletin.

Affiliated with

Also associated with

Rating

Laser beam recording system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser beam recording system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser beam recording system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1925743