Imaging lens assembly

Details Imaging lens assembly Imaging lens assembly

2011-06-28

2011-06-28

Spector, David N (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C348S335000, C359S715000, C359S771000

Reexamination Certificate

active

07969664

ABSTRACT:
This invention provides an imaging lens assembly comprising: in order from an object side to an image side: a first lens with positive refractive power having a convex object-side surface and a convex image-side surface; a second lens with negative refractive power having a concave object-side surface; a third lens with positive refractive power having a convex image-side surface, at least one of both surfaces thereof being aspheric; and a fourth lens with negative refractive power having a convex object-side surface and a concave image-side surface on which at least one inflection point is formed; wherein there are four lenses with refractive power, an on-axis spacing between an aperture stop and an electronic sensor provided therein is SL, an on-axis spacing between the object-side surface of the first lens and the electronic sensor is TTL, they satisfy the relation: 0.75<SL/TTL<0.90.

REFERENCES:
patent: 7277238 (2007-10-01), Noda
patent: 7365920 (2008-04-01), Noda
patent: 7864454 (2011-01-01), Tang et al.
patent: 7911711 (2011-03-01), Tang et al.
patent: 2011/0058089 (2011-03-01), Tang et al.

Affiliated with

Also associated with

Rating

Imaging lens assembly 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 lens assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Imaging lens assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2674656