Autofocus module and method for a microscope-based system

Details Autofocus module and method for a microscope-based system Autofocus module and method for a microscope-based system

2005-04-12

2005-04-12

Robinson, Mark A. (Department: 2872)

Optical: systems and elements

Compound lens system

Microscope

C359S389000, C250S201300

Reexamination Certificate

active

06879440

ABSTRACT:
An autofocus module for a microscope-based system includes at least two light sources, each of which generates a light beam for focusing. An optical directing device is provided that directs a respective portion of each light beam onto an incoupling means, which couples each of the light beams into the illuminating light beam of the microscope-based system and directs the light beams onto a specimen. A first and a second detector receive the light beams of the first and second light source reflected from the surface of the specimen, and ascertain the intensities on the first and second detector in time-multiplexed fashion.

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