Compact sized optical pickup system

Details Compact sized optical pickup system Compact sized optical pickup system

1997-09-30

1999-05-18

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250225, 369 4423, 369112, G11B7/00

Patent

active

059052546

ABSTRACT:
An optical pickup system reads an information signal from stored on a recording surface of an optical disk. The optical pickup system includes a light source for generating a light beam including a P and an S polarization component with a wavelength .lambda..sub.1, a 1/4.lambda. plate for changing the polarization component of the light beam transmitted therethrough, an optical detector for detecting the information signal off the optical disk, and a beam splitter, provided with a first and a second surface, the first surface being capable of reflecting one of the polarization components to the optical disk through the 1/4.lambda. plate and transmitting the light beam reflected from the optical disk changed its polarization component by passing through the 1/4.lambda. plate to the second surface being capable of reflecting the light beam impinging thereon to the detecting means, thereby allowing the optical pickup system to read the information signals off the recording surface.

REFERENCES:
patent: 4817072 (1989-03-01), Toide et al.
patent: 5331622 (1994-07-01), Ernst et al.
patent: 5550368 (1996-08-01), Park
patent: 5657164 (1997-08-01), Shuman

Affiliated with

Also associated with

Rating

Compact sized optical pickup system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compact sized optical pickup system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compact sized optical pickup system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1761220