Binocular viewing device and its assembly process

Details Binocular viewing device and its assembly process Binocular viewing device and its assembly process

1995-04-04

1997-04-15

Callahan, Timothy P.

Optical: systems and elements

Compound lens system

Telescope

359409, 359431, G02B 2318, G02B 2312, G02B 2302

Patent

active

056215673

ABSTRACT:
An asymmetric binocular viewing device having a first and a second optical axis forming a horizontal plane. A single objective, a related luminance intensifier tube, a semi-reflecting optical image splitter and a first ocular are aligned in succession the first optical axis. A second ocular related to the optical image splitter by an optical image transmitting system is aligned on the second optical axis. The optical image transmitting system includes in succession a first mirror, an lens system, a second mirror, and a third mirror. The elements are arranged so that an optical path is defined starting from the optical splitter and including a first vertical axis section, a horizontal axis section, and a second vertical axis section describing a U turned upside down in the shape of a bridge located on a vertical plane and perpendicular to both parallel first and second optical axes. This defines a free space between both the first and second oculars freeing up the space for the user.

REFERENCES:
patent: 4383741 (1983-05-01), Vogl et al.
patent: 4398788 (1983-08-01), Dietz
patent: 4568153 (1986-02-01), Baluteau
patent: 5235458 (1993-08-01), Akagi et al.
patent: 5414557 (1995-05-01), Phillips
patent: 5469293 (1995-11-01), Fantone

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