Optical recording medium with a diffraction grating layer

Details Optical recording medium with a diffraction grating layer Optical recording medium with a diffraction grating layer

1995-08-03

1997-08-12

Epps, Georgia Y.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369112, 369 4437, 369 94, 369283, 369284, G11B 726

Patent

active

056573049

ABSTRACT:
A system for the optical writing/reading of a recording medium, the system including at least one light source emitting three beams that focus at three distinct points on the recording medium and a diffraction device creating three orders of diffraction, -1, 0 and +1, for each beam, the focusing points of the three beams being aligned in the direction of diffraction of the diffraction device and being at a distance from one another so that, at the focusing point of the 0 order diffraction of the central beam, there is focused the -1 order diffraction of one lateral beam and the +1 order diffraction of the other lateral beam.

REFERENCES:
patent: 4982395 (1991-01-01), MacAnally
patent: 5107472 (1992-04-01), Fujiwara et al.
patent: 5128914 (1992-07-01), Kurata et al.
patent: 5450387 (1995-09-01), Ono et al.

Affiliated with

Also associated with

Rating

Optical recording medium with a diffraction grating layer 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 recording medium with a diffraction grating layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical recording medium with a diffraction grating layer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-166169