Electrical moving apparatus for microscope

Details Electrical moving apparatus for microscope Electrical moving apparatus for microscope

1995-12-08

1998-10-20

Nguyen, Thong

Optical: systems and elements

Compound lens system

Microscope

359391, G02B 2100, G02B 2126

Patent

active

058255311

ABSTRACT:
An electrically-driven moving apparatus for a microscope includes a control device for rotating and stopping an electric motor on the basis of outputs of a detector for detecting a rotational quantity of an operation handle and of a detector for detecting a position changing quantity of a stage. There may be provided a speed control device for changing over the stage to extremely slow fixed speed control when using an objective lens having a high magnification. The stage may be moved at a relatively high speed in response to an operation of a rotary handle for a rough movement and moved at a relatively slow speed in response to an operation of a rotary handle for a micro movement. A braking device is provided on the rotary handle, and reaching of the stage to a movement limit position can be also sensed by the operator.

REFERENCES:
patent: 4012634 (1977-03-01), Bouton et al.
patent: 4639587 (1987-01-01), Chadwick et al.
patent: 4653878 (1987-03-01), Nakasato et al.
patent: 4725720 (1988-02-01), Sawada et al.
patent: 4930882 (1990-06-01), Koch et al.
patent: 5260825 (1993-11-01), Nagano et a.
patent: 5557456 (1996-09-01), Garner et al.

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