Optical pickup with a first detector to receive reflected data c

Details Optical pickup with a first detector to receive reflected data c Optical pickup with a first detector to receive reflected data c

1997-08-19

1999-03-09

Swann, Tod R.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 4412, 369 4414, 369 4423, 369112, 369109, 369122, 369103, G11B 708

Patent

active

058810439

ABSTRACT:
An optical pickup irradiates a record surface of an optical storage medium with light and receives the light reflected by the record surface. The reflected light includes a data signal light corresponding to data recorded on the optical storage medium and other light. The optical pickup comprises a light source, a data photo detector, another photo detector, a base, a beam splitter, an introductive optical element, and a lens. The light source emits the light to the record surface. The data photo detector receives the data signal light. The another photo detector receives the other light. On the base, the light source, the data photo detector and the another photo detector are arranged. The beam splitter transmits the light from the light source and separates the reflected light from the optical record medium into the data signal light and the other light. The introductive optical element introduces the data signal light to the data photo detector and the other light to the another photo detector. The lens condenses the light from the light source transmitted through the beam splitter on the optical record medium and introduces the reflected light from the optical record medium to the beam splitter.

REFERENCES:
patent: 5404344 (1995-04-01), Imada et al.
patent: 5448407 (1995-09-01), Tzeng et al.
patent: 5453963 (1995-09-01), Katayama et al.
patent: 5644563 (1997-07-01), Yang
patent: 5708644 (1998-01-01), Hasegawa
patent: 5717675 (1998-02-01), Yamamoto
patent: 5737297 (1998-04-01), Mashiyama et al.

Affiliated with

Also associated with

Rating

Optical pickup with a first detector to receive reflected data c 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 pickup with a first detector to receive reflected data c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical pickup with a first detector to receive reflected data c will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1328417