Imaging optical system

Details Imaging optical system Imaging optical system

2005-08-09

2005-08-09

Epps, Georgia (Department: 2873)

Optical: systems and elements

Lens

With light limiting or controlling means

C359S785000

Reexamination Certificate

active

06927925

ABSTRACT:
An imaging optical system comprising, in order from the object side, a first positive meniscus lens having a convex surface on the object side, an aperture stop, a second negative meniscus lens having a convex surface on the image side, and a third positive lens having an object side aspherical surface which has curvature lowered toward a marginal portion of the aspherical surface and an image side surface which has curvature enhanced toward the marginal portion of the aspherical surface. This imaging optical system allows its performance to be degraded due to manufacturing errors and exhibits high performance even when the optical system is configured compact.

REFERENCES:
patent: 6560043 (2003-05-01), Saito et al.
patent: 6804067 (2004-10-01), Sato
patent: 05-188284 (1993-07-01), None
patent: 07-027974 (1995-01-01), None
patent: 09-288235 (1997-11-01), None
patent: 11-052227 (1999-02-01), None
patent: 2001-083409 (2001-03-01), None

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3523943