Optical head and information storage device

Details Optical head and information storage device Optical head and information storage device

2006-09-12

2006-09-12

Psitos, A. M. (Department: 2627)

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

C369S112010, C359S586000

Reexamination Certificate

active

07106664

ABSTRACT:
An optical head including a first dielectric layer having a first refractive index, a pair of second dielectric layers located adjacent to the first dielectric layer on both sides thereof, each of the second dielectric layers having a second refractive index larger than the first refractive index, a pair of third dielectric layers located adjacent to the second dielectric layers, and a pair of fourth dielectric layers located adjacent to the third dielectric layers, each of the fourth dielectric layers having a third refractive index larger than the first refractive index. Light is incident on the optical head in a direction orthogonal to a layering direction of the first to fourth dielectric layers. The first dielectric layer and each of the third dielectric layers have different refractive indices or different thicknesses.

REFERENCES:
patent: 09-326130 (1997-12-01), None
patent: 10-302291 (1998-11-01), None
patent: 11-328713 (1999-11-01), None
patent: 2001-66240 (2001-03-01), None
patent: 2001-134972 (2001-05-01), None
patent: 2002-184036 (2002-06-01), None

Affiliated with

Also associated with

Rating

Optical head and information storage device 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 and information storage device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical head and information storage device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3540224