Observation port assembly

Details Observation port assembly Observation port assembly

1976-01-29

1977-09-27

Corbin, John K.

350252, G02B 500, G02B 2504

Patent

active

040507920

ABSTRACT:
An observation port assembly, arranged to be attached to a door and to permit a panoramic view with a maximum field of view of the area outside the door, including a boxshaped part, attachable to the outside surface of the door, having at least two optical viewing elements with wide angle properties arranged with the viewing oculars adjacent to each other and viewable from the inside of the door, the optical axis of said elements being arranged in a predetermined angle relationship between to adjacently arranged elements.

REFERENCES:
patent: 1708746 (1929-04-01), Van Hofe
patent: 2491758 (1949-12-01), Nichols et al.
patent: 3526452 (1970-09-01), Dorn
patent: 3910676 (1975-10-01), Fojtik et al.

Affiliated with

Also associated with

Rating

Observation port assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1811773