Fixed focus binoculars

Details Fixed focus binoculars Fixed focus binoculars

1987-11-03

1989-07-18

Arnold, Bruce Y.

350545, 350551, G02B 706, G02B 2300

Patent

active

048488879

ABSTRACT:
Binoculars include a pair of housings pivotally hinged therebetween with each housing having an objective lens and an eyepiece lens for cooperating to magnify an image seen therethrough. Each objective lens and respective eyepiece lens are fixed in position relative to one another and are positioned at such a distance from one another such that the focus through the combined lenses is fixed at infinity.

REFERENCES:
patent: 2002782 (1935-05-01), Lester
patent: 2436574 (1948-02-01), Johanson
patent: 3540792 (1970-11-01), Akin, Jr.
patent: 3744872 (1973-07-01), Akin, Jr. et al.
patent: 3985421 (1976-10-01), Beecher
patent: 4080042 (1978-03-01), Hornschu et al.
patent: 4325602 (1982-04-01), Lange
patent: 4329013 (1982-05-01), Hengst
patent: 4346960 (1982-08-01), Lehrmund et al.

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