Rear view vision device

Details Rear view vision device Rear view vision device

1974-03-18

1976-03-30

Corbin, John K.

350 52, 350211, G02B 508

Patent

active

039470954

ABSTRACT:
Compact periscopic device particularly adapted for vehicular rear vision, including an optical train to provide a wide field of view with optimum resolution and brightness and adapted to the confines of a relatively small housing enclosure. The optical train directs the incoming light rays through a series of direction reversals whereby the housing size requirements are considerably reduced. Further, the optical train consists of a pair of alternately operable, Fresnel-type objective lenses of differing focal length to provide for either a wide unit magnification of rear-viewed objects in one instance or a greatly expanded field of view in another instance. The optical train also includes image-reversing and image-inversion reflective surfaces, to correct for lens reversal and inversion of the image.

REFERENCES:
patent: 1097635 (1914-05-01), Humbrecht
patent: 1445284 (1923-02-01), Bell et al.
patent: 2757575 (1956-08-01), Kovach
patent: 3043195 (1962-07-01), Moultrie
patent: 3809462 (1974-05-01), Baumgardner et al.

Affiliated with

Also associated with

Rating

Rear view vision device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rear view vision device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rear view vision device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-517823