Optical disk recording apparatus

Details Optical disk recording apparatus Optical disk recording apparatus

1985-02-13

1987-07-14

Faber, Alan

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

250201, 346 76L, 369110, 369111, 369116, G11B 709, G11B 7125

Patent

active

046807454

ABSTRACT:
An apparatus for recording pits and grooves on the surface of a recording medium such as an optical disk in which the pits and grooves are formed by separate light sources, thereby providing accurate control over the dimensions of both the pits and grooves. Light beams of separate wavelengths suitable for forming the pits and grooves are passed through respective optical modulators and continuously variable beam expanders, and then combined and applied through a focusing lens to the recording medium. A beam monitor and a focus monitor receive part of the light reflected from the surface of the disk to control the focus and beam size conditions.

REFERENCES:
patent: 3902010 (1975-08-01), Goshina
patent: 3969575 (1976-07-01), Gerritsen
patent: 4027330 (1977-05-01), Maslowski
patent: 4142210 (1979-02-01), Otobe
patent: 4566088 (1986-01-01), Yoshida

Affiliated with

Also associated with

Rating

Optical disk recording apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1431564