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Auto focussing device and method

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posted on 2023-06-08, 09:56 authored by Mark Osborne, Harold Swerdlow
There is disclosed an apparatus for detecting the distance of a surface from a lens, for example for use in a microscope autofocus arrangement. A light beam is directed into the lens, displaced sideways from the lens axis. The displacement of the reflected beam emerging from the lens is used to determine the required distance or to operate a focussing actuator.

History

Publication status

  • Published

Publisher

World Intellectual Property Organisation

Volume

WO0306

Pages

24.0

Department affiliated with

  • Chemistry Publications

Full text available

  • No

Peer reviewed?

  • No

Legacy Posted Date

2012-02-06

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