Device for controllably moving an optical element

Details Device for controllably moving an optical element Device for controllably moving an optical element

1994-12-05

1996-04-09

Epps, Georgia Y.

Optical: systems and elements

Lens

With support

359813, 359699, 359823, G02B 702, G02B 1514

Patent

active

055067310

ABSTRACT:
A device is provided for controllably moving an optical element such as an attenuator, into one of a plurality of positions. The device includes a rotatable, cylindrical member having a face cam that is an endless cammed surface for supporting and moving a cam follower. As the cammed surface is rotated, the cam follower resting upon it moves the optical element in a controlled manner. A gearing means in the form of a toothless planetary gear box is coupled to the cylindrical member and provides fine control over the range of movement of the device.

REFERENCES:
patent: 1127720 (1915-02-01), Baille-Lemaire
patent: 3630131 (1971-12-01), Harvey
patent: 3675565 (1972-07-01), Pagel
patent: 3963306 (1976-06-01), Martin
patent: 3987688 (1976-10-01), Tarbet
patent: 4717222 (1988-01-01), Iwasaki
patent: 4889613 (1989-12-01), McNeal
patent: 4911542 (1990-03-01), Nishio
patent: 5054886 (1991-10-01), Ozaki
patent: 5225939 (1993-07-01), Iizuka
patent: 5244455 (1993-09-01), Swicegood
patent: 5305693 (1994-04-01), Johnson

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