Curvilinear motion type optical filter driving mechanism

Details Curvilinear motion type optical filter driving mechanism Curvilinear motion type optical filter driving mechanism

1991-07-19

1992-11-03

Fields, Carolyn E.

Optical: systems and elements

Absorption filter

Movable in or out of optical path

359891, 359892, G02B 520, G02B 2600

Patent

active

051610698

ABSTRACT:
A curvilinear motion type optical filter driving mechanism, comprising a lens-house, a filter holder, a motor, a driven gear, and a driving gear. The filter holder has an optical filter mounted thereon at the front and disposed in a curvilinear direction, and a rack at the back. Rotating the motor causes the drive gear to carry the optical filter, via the driven gear and the rack, to make a curvilinear motion over the lens of the lens-house.

REFERENCES:
patent: 4943142 (1990-07-01), Fay et al.

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