Lens focusing mechanism

Details Lens focusing mechanism Lens focusing mechanism

1989-10-25

1991-08-27

Arnold, Bruce Y.

Optical: systems and elements

Lens

With support

359819, 359694, G02B 702, G02B 1500

Patent

active

050429140

ABSTRACT:
A lens focusing mechanism 10 including a bracket 18 for retaining a lens 14. The bracket 18 has a bearing 22 attached thereto or integral therewith. The bearing 22 is eccentric relative to the leans 14 and is effective to move the lens 14 along an optical axis 16 thereof. Movement is effectuated by a drive mechanism 34 in a smooth manner and without lubrication. In a specific embodiment, the bearing 22 is eccentric and external to a cylindrical volume defined by the periphery of the lens 14.

REFERENCES:
patent: 4353634 (1982-10-01), Himmelsbach
patent: 4456356 (1984-06-01), Okabe
patent: 4690519 (1987-09-01), Clark et al.
patent: 4757372 (1988-07-01), Betensky et al.
patent: 4802738 (1989-02-01), Ando et al.

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