Optical recording and read-out lens system for optical recording

Details Optical recording and read-out lens system for optical recording Optical recording and read-out lens system for optical recording

1982-10-08

1984-02-14

Corbin, John K.

350410, 350414, G02B 906

Patent

active

044312750

ABSTRACT:
An optical recording and read-out lens system for optical recording type disks comprising a first and second lens components, the first lens component being a cemented lens consisting of three lens elements, i.e., a biconvex lens, biconcave lens and biconvex lens, the second lens component being a positive meniscus lens, the optical recording and read-out lens system having large NA, long working distance and well corrected aberrations especially chromatic aberration, and being small in size and light in weight.

REFERENCES:
patent: 1968222 (1934-07-01), Richter
patent: 2528468 (1950-10-01), Cojan
patent: 2637245 (1953-05-01), Ludewig
patent: 4029398 (1977-06-01), Koizumi
patent: 4270843 (1981-06-01), Goto

Affiliated with

Also associated with

Rating

Optical recording and read-out lens system for optical recording 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 and read-out lens system for optical recording, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical recording and read-out lens system for optical recording will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2371852