Image pickup lens assembly

Optical: systems and elements – Lens – Multiple component lenses

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C359S708000, C359S715000, C359S719000, C359S738000, C359S740000, C369S112230

Reexamination Certificate

active

07355801

ABSTRACT:
An image pickup lens assembly comprises three lens groups, from the object side to the image side: a first lens group, a second lens group, and a third lens group. The first lens group includes two lenses with refractive power, namely, a first lens with positive refractive power, and a second lens with negative refractive power. The front surface of the first lens is convex, and the rear surface of the second lens is concave. The second lens group includes a meniscus third lens with positive refractive power, the rear surface of the third lens is convex. The third lens group includes a fourth lens with negative refractive power, the front surface of the fourth lens is convex, and the rear surface of the fourth lens is aspheric. An aperture stop is located between the first lens and the second lens of the first lens group for controlling the brightness of the optical system.

REFERENCES:
patent: 2007/0081259 (2007-04-01), Noda

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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

Rate now

     

Profile ID: LFUS-PAI-O-2751336

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.