Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1991-10-02
1993-04-06
Sniezek, Andrew L.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369116, 369 4412, G11B 7135
Patent
active
052009467
ABSTRACT:
An optical recording head for use with a magneto optical recording device wherein a rhomboid prism is utilized having a single PBS coating thereon and being totally internally reflective so that light from a source will pass through the PBS coating once, be totally internally reflected, pass through the PBS coating a second time to form first and second beams, the first passing to the recording apparatus and the second being reflected to pass to a detector to monitor the intensity of the radiation. Light from the recording apparatus containing information is reflected back through the PBS coating to form third and fourth beams, the third being reflected to suitable detecting means and the fourth being passed through the rhomboid prism where it is internally totally reflected and emerges to a detector which is used for monitoring the focal position of the objective lens.
REFERENCES:
patent: 4569035 (1986-02-01), Tomita
patent: 4626679 (1986-12-01), Kuwayama et al.
patent: 4639816 (1987-01-01), Tomita
patent: 4654839 (1987-03-01), Endo
patent: 4771411 (1988-09-01), Greve
patent: 4799210 (1989-01-01), Wilson et al.
patent: 4866694 (1989-09-01), Korth
patent: 4907858 (1990-03-01), Hara et al.
patent: 4924079 (1990-05-01), Opheij et al.
patent: 4989189 (1991-01-01), Sander et al.
patent: 5031165 (1991-07-01), Fujita
patent: 5067117 (1991-11-01), Shimizu et al.
patent: 5070493 (1991-12-01), Marshall et al.
Optical Data Storage '91, section entitled "Compact Magneto-Optical Disk Head Integrated with Chip Elements", pp. 263-268 from Optical Society of America, Feb. 25-27, 1991.
Edon Muhammad
Honeywell Inc.
Sniezek Andrew L.
Ungemach Charles J.
LandOfFree
Simple magneto-optic rewritable head for roughedized environment does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Simple magneto-optic rewritable head for roughedized environment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simple magneto-optic rewritable head for roughedized environment will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-541756