Focusing device for a binocular instrument

Details Focusing device for a binocular instrument Focusing device for a binocular instrument

1991-01-25

1991-11-05

Arnold, Bruce Y.

Optical: systems and elements

Compound lens system

Telescope

359418, G02B 706, G02B 2318

Patent

active

050626981

ABSTRACT:
A focusing device for a binocular instrument can include a single focusing drive means provided between right and left ocular lenses so as to simutaneously move the right and left ocular lenses forward and backward in a direction of an optical axis to effect focusing. The focusing device also includes a pair of right and left guide holes formed in a body of the binocular instrument which extend from the ocular side to the portion of the binocular body accommodating Porro prisms or Porro mirrors. The guide holes extend in coaxial relation to respective ocular optical axes. A pair of right and left ocular tubes respectively support the ocular lenses and are received respectively in the guide holes so as to be slidable along the respective ocular optical axes. A connecting means connects each of the ocular tubes to the focusing drive means.

REFERENCES:
patent: 1479409 (1924-01-01), Edstrom
patent: 2079890 (1937-05-01), Wollensak et al.
patent: 2267711 (1941-12-01), Bailey
patent: 2386394 (1945-10-01), Grier
patent: 3528724 (1970-09-01), Bertin
patent: 3540792 (1970-11-01), Akin, Jr.
patent: 3712704 (1973-01-01), Sato
patent: 4818086 (1989-04-01), Moore
patent: 4867533 (1989-09-01), Akin, Jr.

Affiliated with

Also associated with

Rating

Focusing device for a binocular instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Focusing device for a binocular instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Focusing device for a binocular instrument will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-495125