Optical pickup with astigmatism correcting lens

Details Optical pickup with astigmatism correcting lens Optical pickup with astigmatism correcting lens

1989-05-25

1990-11-06

Henry, Jon W.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

350171, 350433, 350434, 350447, 369 4423, G01J 120, G02B 1318, G02B 2710

Patent

active

049688740

ABSTRACT:
An optical pickup using a parallel plane plate type beam splitter is disclosed, in which the astigmatism produced by the fact that the light beam passes through the beam splitter is compensated by means of a correcting lens having anisotropically curved surfaces.

REFERENCES:
patent: 4079247 (1978-03-01), Bricot et al.
patent: 4412723 (1983-11-01), Shafer
patent: 4561080 (1985-12-01), Yamazaki
patent: 4614863 (1986-09-01), Sato
patent: 4709139 (1987-11-01), Nakamara et al.
patent: 4724533 (1988-02-01), Ohara et al.
patent: 4731527 (1988-03-01), Nomura et al.
patent: 4767921 (1988-08-01), Kawasaki et al.
patent: 4812638 (1989-03-01), Ogatu et al.
patent: 4891799 (1990-01-01), Nakano

Affiliated with

Also associated with

Rating

Optical pickup with astigmatism correcting lens 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 pickup with astigmatism correcting lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical pickup with astigmatism correcting lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1308340