Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1998-04-16
1999-10-26
Cabeca, John W.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369 4414, 369 4437, 369103, 369112, G11B 700
Patent
active
059740191
ABSTRACT:
A positioning system for selectively directing a first beam of light towards a destination and a second beam of light towards a first diffractive optic. The first beam of light and the second beam of light traverse a substantially co-linear optical path. The first diffractive optic diffracts the second beam of light into a plurality of optical spots. The second beam of light comprising the plurality of optical spots is directed onto a second diffractive optic. A change in position of the plurality of optical spots relative to the second diffractive optic is sensed in a reflection of the second beam of light by a detection element and representative signals are derived thereof. The signals are coupled to a directing assembly, which directs the first beam of light towards the destination.
REFERENCES:
patent: 4239330 (1980-12-01), Ashkin et al.
patent: 4265513 (1981-05-01), Matsushita et al.
patent: 4304460 (1981-12-01), Tanaka et al.
patent: 4498730 (1985-02-01), Tanaka et al.
patent: 4626066 (1986-12-01), Levinson
patent: 4896937 (1990-01-01), Kraetsch et al.
patent: 4978190 (1990-12-01), Veith
patent: 5000532 (1991-03-01), Kraetsch et al.
patent: 5024500 (1991-06-01), Stanley et al.
patent: 5159408 (1992-10-01), Waldenmaier et al.
patent: 5208880 (1993-05-01), Riza et al.
patent: 5260928 (1993-11-01), Lee et al.
patent: 5272690 (1993-12-01), Bargerhuff et al.
patent: 5319629 (1994-06-01), Henshaw et al.
patent: 5446811 (1995-08-01), Field et al.
patent: 5452283 (1995-09-01), Lee et al.
patent: 5493440 (1996-02-01), Souda et al.
patent: 5532884 (1996-07-01), Lee et al.
patent: 5647033 (1997-07-01), Laughlin
patent: 5677903 (1997-10-01), Holtslag et al.
"Micromachined 1X2 Optical Fiber Switch", L. Field, D. Burriesci, P. Robrish, R. Ruby, Transducers'95, Jun. 25-29, 1995, pp. 344-347.
Belser Karl A.
Drake Joseph
Fennema Alan A.
Jerman John H.
Cabeca John W.
Chu Kim-Kwok
Seagate Technology Inc.
Wardas Mark A.
LandOfFree
Optical system for two-dimensional positioning of light beams does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical system for two-dimensional positioning of light beams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical system for two-dimensional positioning of light beams will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-771965