Optical head in a recording and reading device for a data...

Details Optical head in a recording and reading device for a data... Optical head in a recording and reading device for a data...

G - Physics

11

B

352/32.4

G11B 7/12 (2006.01) G02B 13/10 (2006.01) G11B 7/135 (2006.01)

Patent

CA 1203621

ABSTRACT OF THE DISCLOSURE The optical head in a data carrier recording - reading device comprises a semiconductor laser source. A lens makes it possible to focus the beam from this source. A polarization beam splitter makes it possible to deflect the beam reflected by this carrier towards a group of photodetectors. According to the invention the splitter is an isosceles prism, which serves as an anamorphotic - splitting means. A quarter-wave plate is bonded to one of the faces of this prism. A planoconvex lens can also be bonded to the other face of the prism upstream of the photodetectors.

423054

Affiliated with

Also associated with

Rating

Optical head in a recording and reading device for a data... 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 head in a recording and reading device for a data..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical head in a recording and reading device for a data... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1267493