Operation microscope including eyepiece tube rotary angle drive means and angle detecting means
US5074651A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 1990 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Aug 17, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/0012
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An operation microscope includes a tube attached to its support so as to be turned up or down with respect to an operation objective. An eyepiece tube is attached to the tube so as to change its position in a direction with respect to this adjustment. A turning up and down angle detection device detects an angle for the tube. An eyepiece tube drive device changes the rotary angle of the eyepiece tube. A control device uses detection results of the turning up and down angle detection device and, based on the detection results, the eyepiece tube drive device is controlled to return the eyepiece tube to its original position. By this construction, when the tube is in the turning up or down state at a given angle with respect to an operation objective, the angle detection device detects the tube's turning up or down angle and thereby outputs the detection results. The control device then, based on the detection results from the angle detection device, controls the eyepiece drive device to return the eyepiece tube to its original position according to the adjusting angle. Therefore, an operator is always able to make the observation at the optimal position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.