Recorded data reader employing a polarized beam splitter

Details Recorded data reader employing a polarized beam splitter Recorded data reader employing a polarized beam splitter

1991-06-05

1992-12-01

Chin, Tommy P.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 4412, 369112, G11B 700

Patent

active

051684896

ABSTRACT:
A recorded data reader is provided with a light source for emitting a beam of light and with a photosensitive means. A polarized beam splitter incorporates an interface developed between a titanium diffused region and a proton exchanged region, formed by treating one region of a titanium diffused layer for proton exchange. Both regions are arranged on a substrate of lithium niobate material. Also, a collimator lens, a surface wave electrode, and a grating lens are embedded in the same substrate, thus forming a transmitting and separating arrangement, which transmits the light beam emitted by the light source and which separates a return beam of light originating from a recording medium.

REFERENCES:
patent: 4718052 (1988-01-01), Kono et al.
patent: 4720824 (1988-01-01), Hayashi
patent: 4797867 (1989-01-01), Sunagwa et al.
patent: 4859033 (1989-08-01), Kono et al.
patent: 4862440 (1989-08-01), Miyamoto et al.
patent: 4911512 (1990-03-01), Yamamoto et al.
patent: 5070488 (1991-12-01), Fukushima et al.

Affiliated with

Also associated with

Rating

Recorded data reader employing a polarized beam splitter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recorded data reader employing a polarized beam splitter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recorded data reader employing a polarized beam splitter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-507497