Optical head with a plural layers coated beam splitter for light

Details Optical head with a plural layers coated beam splitter for light Optical head with a plural layers coated beam splitter for light

1996-05-22

1997-12-23

Nelms, David C.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369112, 369 13, G11B 700, G11B 7135

Patent

active

057012873

ABSTRACT:
An optical head comprising an object lens by which a light beam from a light source is projected so as to converge onto said magneto-optical recording medium, a beam splitter disposed along an optical path between the light source and the object lens, for separating the beam emitted from the light source and a first polarized light component or a second polarized light component different therefrom of a light beam returned from the signal surface of said magneto-optical recording medium via said object lens, and a photodetector for receiving the returned beam separated by the beam splitter, wherein the separation rate of the first component or second component by the beam splitter is not less than 85% and not more than 95%. This configuration enables the optical head to be small-sized, and the returned beam is detected with high precision.

REFERENCES:
patent: 5077723 (1991-12-01), Yoshimatsu
patent: 5428588 (1995-06-01), Ohuchida
patent: 5428596 (1995-06-01), Hineno et al.
patent: 5523994 (1996-06-01), Ando et al.
patent: 5528575 (1996-06-01), Saito
patent: 5555538 (1996-09-01), Yanagawa et al.

Affiliated with

Also associated with

Rating

Optical head with a plural layers coated beam splitter for light 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 with a plural layers coated beam splitter for light, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical head with a plural layers coated beam splitter for light will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1806098