Optical system, and image observing apparatus and image pickup a

Details Optical system, and image observing apparatus and image pickup a Optical system, and image observing apparatus and image pickup a

1996-02-27

1998-01-06

Nelms, David C.

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359631, 359633, G02B 2714

Patent

active

057061360

ABSTRACT:
The present invention relates to an optical system apparatus, which has a first surface symmetric with respect to only one symmetry plane and a second surface symmetric with respect to only the symmetry plane, in which the first plane is a reflective, concave surface and is inclined relative to a reference axial ray present in the symmetry plane. Further, a local power of the second surface changes from a positive to a negative.

REFERENCES:
patent: 4383740 (1983-05-01), Bordovsky
patent: 4775217 (1988-10-01), Ellis
patent: 4962313 (1990-10-01), Rose
patent: 5093567 (1992-03-01), Staveley
patent: 5121099 (1992-06-01), Hegg et al.
patent: 5189452 (1993-02-01), Hodson
patent: 5319207 (1994-06-01), Rose
patent: 5357372 (1994-10-01), Chen
patent: 5436763 (1995-07-01), Chen
patent: 5459612 (1995-10-01), Ingleton
patent: 5483307 (1996-01-01), Anderson
patent: 5506728 (1996-04-01), Edwards
patent: 5543968 (1996-08-01), Freeman

Affiliated with

Also associated with

Rating

Optical system, and image observing apparatus and image pickup a 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 system, and image observing apparatus and image pickup a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical system, and image observing apparatus and image pickup a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2334274