Optical scanning device as well as a microfilm reader-printer with such a device
US4886329A · kind A · utility
2Cited by
10References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1987 |
| Grant date | Dec 12, 1989 |
| Priority date | — |
| Expiry date | Oct 19, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/118
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a microfilm reader-printer working according to the rotational principle one of the fixed deflecting mirrors (11, 12) by which the image is to be projected on an exposure area (13) is made and arranged in a flexible manner. A deflecting device (14) formed by a magnet coil (15) and a pusher rod (16) is continually bending one of the deflecting mirrors (11, 12) during the exposure of the base material in such a way that an image is produced that is free from distortions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.