Lens mounting comprising at least three circumferentially spaced

Details Lens mounting comprising at least three circumferentially spaced Lens mounting comprising at least three circumferentially spaced

1997-05-02

1998-12-08

Epps, Georgia

Optical: systems and elements

Lens

With support

359823, G02B 702

Patent

active

058478868

ABSTRACT:
An arrangement (10) for mounting a lens for axial movement comprises a housing (12) defining an axially extending bearing surface (14) and a lens carriage (16) including least three circumferentially spaced bearings (20, 21, 22) in contact with the bearing surface (14) and permitting axial movement of the carriage (16) relative to the housing (12). One of the bearings (20) is biassed towards the bearing surface (14). In use, the arrangement (10) maintains a three-point contact between the lens carriage (16) and the bearing surface (14) despite geometrical variations in the surface.

REFERENCES:
patent: 4514039 (1985-04-01), Kawai
patent: 4812015 (1989-03-01), Iizuka et al.
patent: 4961627 (1990-10-01), Swain et al.
patent: 5162948 (1992-11-01), Horning et al.
patent: 5424872 (1995-06-01), Lecuyer et al.
patent: 5502598 (1996-03-01), Kimura et al.

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