Afocal telescope with automatic focus and temperature...

Details Afocal telescope with automatic focus and temperature... Afocal telescope with automatic focus and temperature...

G - Physics

02

B

88/94.5

G02B 7/08 (2006.01) G02B 7/10 (2006.01) G02B 13/22 (2006.01)

Patent

CA 2026114

ABSTRACT OF THE DISCLOSURE An autofocus system 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 lens 14 and is effective to move the lens 14 along the optical axis 16 thereof. Movement is effectuated 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.

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