High density optical disc and optical disc player

Details High density optical disc and optical disc player High density optical disc and optical disc player

1994-04-14

1995-12-19

Epps, Georgia Y.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

3692753, G11B 370

Patent

active

054775272

ABSTRACT:
A high density optical disc having a track pitch of 0.85 .mu.m, a shortest pit length of 0.49 .mu.m, a pit depth of 100 nm, and a pit width of 0.35 .mu.m is rotated at a linear velocity of 2.4-2.8 m/s such that the same is optically reproduced by a laser beam having a wavelength of 635 nm which is converged to a spot size of 0.9 .mu.m by an objective lens having a numerical aperture of 0.6. Accordingly, data is read from the optical disc at a transfer rate of 5.6 Mbps.

REFERENCES:
patent: 5040165 (1991-08-01), Taii et al.
patent: 5216646 (1993-06-01), Imanaka et al.
patent: 5353265 (1994-10-01), Maeda et al.
patent: 5383176 (1995-01-01), Inui et al.

Affiliated with

Also associated with

Rating

High density optical disc and optical disc player does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High density optical disc and optical disc player, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High density optical disc and optical disc player will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-997290