Laser beam system for optically recording information signals on

Details Laser beam system for optically recording information signals on Laser beam system for optically recording information signals on

1976-11-29

1978-09-19

Cardillo, Jr., Raymond F.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

1791003V, 1791004C, H04N 576

Patent

active

041158091

ABSTRACT:
The inventive system optically records information signals on a recording disc. A light source, such as a laser beam, for example, emits a light which is modulated in conformance with an information signal that is to be recorded. An optical system converts this light into a beam having a large width in the longitudinal direction of a track formed on the recording disc. There is a small beam dimension in the transverse direction of the track. A slit plate within the optical system limits the width of the light to cause a constant beam width in the transverse direction of the track. A focusing lens receiving, as incident light, such a limited light beam forms a light spot on the recording disc which is small in the longitudinal direction of the track and large in the transverse direction of the track. The light spot forms a plurality of pits in the upper surface of the recording disc. Each of these pits has a small width in the longitudinal direction of the track and a constant large width in the transverse direction of the track, thereby to record the information signal along the track on the recording disc.

REFERENCES:
patent: 3800099 (1974-03-01), Dickopp et al.
patent: 3983317 (1976-09-01), Glorioso
patent: 4025949 (1977-05-01), Whitman
patent: 4041532 (1977-08-01), Plows et al.

Affiliated with

Also associated with

Rating

Laser beam system for optically recording information signals on 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 system for optically recording information signals on, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser beam system for optically recording information signals on will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2122635