Binoculars

Details Binoculars Binoculars

2005-08-02

2005-08-02

Nguyen, Thong Q (Department: 2872)

Optical: systems and elements

Compound lens system

Telescope

C359S407000, C359S425000

Reexamination Certificate

active

06924933

ABSTRACT:
A mechanism for focal adjustment and dipotric deviation adjustment in binoculars. The mechanism includes: a first focal adjustment lens system; a second focal adjustment lens system; a focal adjustment shaft that performs a focal adjustment by causing the first focal adjustment lens system and the second focal adjustment lens system to move along optical axes thereof; and a dioptric deviation adjustment shaft that performs a dioptric deviation adjustment by causing the first focal adjustment lens system to move along the optical axis. The focal adjustment shaft and the dioptric deviation adjustment shaft both are housed within a bridge casing set between the first lens barrel and the second lens barrel. The dioptric deviation adjustment shaft is linked with the first focal adjustment lens system. The focal adjustment shaft is linked with the second focal adjustment lens system and the dioptric deviation adjustment shaft.

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patent: 5064279 (1991-11-01), Riedl
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patent: 5886815 (1999-03-01), Nishitani
patent: 5903387 (1999-05-01), Tomikawa et al.
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patent: 6266185 (2001-07-01), Miller et al.
patent: 6335825 (2002-01-01), Funatsu
patent: 3-163512 (1991-07-01), None
patent: 6-59808 (1994-08-01), None

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