Arrangement for the manual adjustment of a focus position on...

Details Arrangement for the manual adjustment of a focus position on... Arrangement for the manual adjustment of a focus position on...

2006-09-05

2006-09-05

Nguyen, Thong Q. (Department: 2872)

Optical: systems and elements

Compound lens system

Microscope

C359S368000, C359S393000

Reexamination Certificate

active

07102816

ABSTRACT:
The invention is directed to an arrangement for manual adjustment of a focus position in microscopes with a motor-operated focusing drive. According to the invention, the arrangement has a first operator's control for giving an adjusting path length and a second operator's control for giving an adjusting speed. The two operator's controls are preferably constructed as rotating knobs. An adjusting path length for the focusing movement is given by the rotational angle at the first rotating knob, and an adjusting speed of the focusing movement is given by the rotational angle at the second rotating knob. The change in the rotational angle at the first rotating knob is proportional to the change in the adjusting path and the change in the rotational angle at the second rotating knob is proportional to the change in the adjusting speed.

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