Objective lens for optical disc

Details Objective lens for optical disc Objective lens for optical disc

1998-11-20

2000-01-11

Epps, Georgia

Optical: systems and elements

Lens

Including a nonspherical surface

359718, 359708, G02B 1318

Patent

active

060142715

ABSTRACT:
An objective lens for an optical disc includes a positive single lens, disposed between a light source and the optical disc. The objective lens has a first surface directed to the light source and a second surface directed to the optical disc. The first surface has a convex shape and both the first surface and the second surface are aspheric. The objective lens satisfies the following condition: 1.0<.vertline.R2/R1.vertline.<1.2, where R1 is the paraxial radius of curvature on the light source side surface and R2 is the paraxial radius of curvature on the optical disc side surface.

REFERENCES:
patent: Re34455 (1993-11-01), Arai et al.

Affiliated with

Also associated with

Rating

Objective lens for optical disc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Objective lens for optical disc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Objective lens for optical disc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1466858