Focus lock for binoculars

Details Focus lock for binoculars Focus lock for binoculars

1988-03-09

1989-04-04

Henry, Jon W.

350563, G02B 706

Patent

active

048180866

ABSTRACT:
A binocular with a focusing/locking knob having a pair of essentially flat paddle platforms which are easily contacted by the fingertips of a user. The paddle platforms being independently pivoted on the knob and having means for preventing rotational motion for locking the knob. The means for preventing rotation being engaged by pivoting the paddle platforms in one direction and disengaged by pivoting the paddle platforms in the opposite direction.

REFERENCES:
patent: 3540792 (1970-11-01), Akin
patent: 4066329 (1978-01-01), Van Exel
patent: 4262990 (1981-04-01), Kamakura
patent: 4470671 (1984-09-01), Ishida
patent: 4531817 (1985-07-01), Sato
patent: 4545656 (1985-10-01), Takano
patent: 4583828 (1986-04-01), Kimura
patent: 4616907 (1987-10-01), Nakamura
patent: 4659194 (1987-04-01), Swartz
patent: 4674847 (1987-06-01), Iwaoka

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