Clicking device having a rotary member with teeth engageable wit

Details Clicking device having a rotary member with teeth engageable wit Clicking device having a rotary member with teeth engageable wit

1996-10-23

1998-02-17

Nelms, David C.

Optical: systems and elements

Lens

With support

359819, G02B 0702

Patent

active

057197121

ABSTRACT:
There is provided a click device adapted to define a position by fitting a clicking projection in desired one of clicking grooves provided at a predetermined pitch. For defining the position with a unit less than a pitch of the clicking grooves, there are provided plural clicking projections, which are provided in respectively different positions within a pitch (or N pitches, wherein N is zero or a natural number) of the clicking grooves.

REFERENCES:
patent: 3893135 (1975-07-01), Matsui et al.
patent: 4637563 (1987-01-01), Arii et al.
patent: 5009629 (1991-04-01), Tagawa
patent: 5165117 (1992-11-01), Kamata
patent: 5185889 (1993-02-01), Kamata
patent: 5186072 (1993-02-01), Nagano
patent: 5325140 (1994-06-01), Torikoshi et al.
patent: 5327292 (1994-07-01), Eguchi

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