System and method for telecentric projection lenses

Optical: systems and elements – Lens – Telecentric system

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07035017

ABSTRACT:
A projection lens system which includes a telecentric lens assembly. The lens may be used to form an image from a light source, including for example a resonant microcavity phosphororcathode ray tube, onto a screen or display, such as in a television or a projection device. In accordance with one embodiment, a planar cooling gap or cavity (which may or may not contain a cooling liquid) is included between the imaging surface and the matching planar surface of the field lens. The use of a planar gap alleviates any temperature differentials across the cooling liquid and the lens surfaces, as compared with alternate designs that may have a non-planar gap between the faceplate and the field lens, or that use liquid lenses.

REFERENCES:
patent: 5200861 (1993-04-01), Moskovich
patent: 5804919 (1998-09-01), Jacobsen et al.
patent: 6747710 (2004-06-01), Hall et al.
patent: 6791629 (2004-09-01), Moskovich et al.
patent: 2004/0090600 (2004-05-01), Blei et al.
patent: WO 2080577 (2002-10-01), None

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

System and method for telecentric projection lenses does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for telecentric projection lenses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for telecentric projection lenses will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3543108

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