Optical pick-up apparatus and divergent angle-converting...

Details Optical pick-up apparatus and divergent angle-converting... Optical pick-up apparatus and divergent angle-converting...

2007-10-30

2007-10-30

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S112080

Reexamination Certificate

active

10976844

ABSTRACT:
An optical pickup apparatus comprising: a first light source emitting first light flux having wavelength λ1(380 nm≦λ1≦450 nm); a second light source emitting second light flux having wavelength λ2(600 nm≦λ2≦700 nm); a third light source emitting third light flux having wavelength λ3(750 nm≦λ3≦800 nm); a first divergent angle-converting element through which the first light flux passes; a second divergent angle-converting element through which the second light flux and the third light flux pass; and an objective optical element through which the first, second, and third light fluxes pass. Optical magnification m2of the second divergent angle-converting element for the second light flux and optical magnification m3of the second divergent angle-converting element for the third light flux are different from each other.

REFERENCES:
patent: 7177089 (2007-02-01), Kimura
patent: 7206274 (2007-04-01), Ikenaka
patent: 2005/0078593 (2005-04-01), Maruyama et al.

Affiliated with

Also associated with

Rating

Optical pick-up apparatus and divergent angle-converting... 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 pick-up apparatus and divergent angle-converting..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical pick-up apparatus and divergent angle-converting... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3881649