Device for modulating a laser beam
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Dec 5, 1989
Issued Date -
N/A
app pub date -
Sep 12, 1988
filing date -
Sep 11, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A laser beam focussed on a moving surface, e.g. of a rolling mill, is modulated by means of a rotating disk with through-orifices. The radial lateral faces of the orifices have, relative to the axis of the laser beam, angles of inclination which are different from each other; this difference in inclination is such that the laser beam deviated by one of the radial lateral faces is then reflected by the opposite radial lateral face towards the zone of the surface which is struck by the laser beam passing, without being deviated, through the orifice. The difference in inclination may be between 15.degree. and 30.degree.. The lateral faces of the through-orifices may be lined with a reflective material.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| BE | A6 | BE1000908 | Sep 11, 1987 |
| EP | B1 | EP0307384 | Sep 02, 1988 |
| JP | A | JPH01114816 | Sep 08, 1988 |
International Classification(s)
- 1988 Application Filing Year
- B05D Class
- 794 Applications Filed
- 11 Patents Issued To-Date
- 1.39 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- B05D Class
- 0 % this patent is cited more than
- 36 Age