Fine position control device
US4193317A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1978 |
| Grant date | Mar 18, 1980 |
| Priority date | — |
| Expiry date | Jan 30, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20207
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A fine position control device for finely adjusting the position of a fixed information carrier such as a transparency in a COM (computer output microfilmer) system. This position control device is capable of moving a fixed information carrier in the X, Y and Z directions in an orthogonal coordinate system and also of rotating the same in the .theta.-direction in the X-Y plane. The position control device has a Y-direction moving stage, an X-direction moving stage which moves in the Y-direction together with the Y-direction moving stage and is movable in X-direction independently of the Y-direction moving stage, a Z-direction moving stage which moves in the X-Y plane together with a member fixed to the X-direction moving stage and is movable in the Z-direction independently of the X-direction moving stage, and a .theta.-direction rotating stage which moves together with the Z-direction moving stage and is rotatable in the X-Y plane independently of the Z-direction moving stage. The .theta.-direction rotating stage is adapted to hold the fixed information carrier. The four stages are respectively connected via feed screws with four control knobs arranged in line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.