Sealed focusing assembly for an industrial vision system

Details Sealed focusing assembly for an industrial vision system Sealed focusing assembly for an industrial vision system

1990-12-13

1992-05-12

Ben, Loha

Optical: systems and elements

Lens

With support

359894, 250239, G02B 702

Patent

active

051132907

ABSTRACT:
A sealed focusing assembly for an industrial vision system according to the present invention is comprised of a main housing in threaded contact with an adjustment ring, and in rotatable contact with a lens sleeve. An O-ring functions to frictionally prevent the lens sleeve from rotating as the assembly is focused by rotation of the adjustment ring and the lens sleeve is axially advanced. The O-ring also functions to form a gaseous-tight seal within the focusing assembly. The use of an additional O-ring provides the assembly with superior seal integrity.

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patent: 4818067 (1989-04-01), Maisenbacher
patent: 4923281 (1990-05-01), Kirchever

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