Objective for video disks

Details Objective for video disks Objective for video disks

1981-08-21

1983-11-22

Corbin, John K.

350414, G02B 914, G02B 2102

Patent

active

044165196

ABSTRACT:
An objective for video disks comprising a first, second and third lenses in which the first lens is a positive lens, the second lens is a negative lens and the third lens is a positive meniscus lens having a concave surface on the video disk side. This objective is small, light in the weight and has a large N.A.

REFERENCES:
patent: 4139266 (1979-02-01), Koizumi
patent: 4257679 (1981-03-01), Okawa
patent: 4258981 (1981-03-01), Goto
patent: 4270843 (1981-06-01), Goto

Affiliated with

Also associated with

Rating

Objective for video disks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Objective for video disks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Objective for video disks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1811970