Lens assembly for projecting image

Details Lens assembly for projecting image Lens assembly for projecting image

2008-07-22

2008-07-22

Hasan, Mohammed (Department: 2873)

Optical: systems and elements

Lens

With support

C359S829000, C359S819000

Reexamination Certificate

active

07403348

ABSTRACT:
A lens assembly includes plural lens components. A first lens element of the first lens component is aspherical and plastic, disposed on a side of a screen surface, for adjusting focus in image projection to the screen surface. A first lens barrel holds the first lens component. A second lens barrel holds a second lens component. A stationary barrel movably contains the second lens barrel. The second lens barrel is rotated helically relative to the stationary barrel, to adjust the focus for the plural lens components. Thereafter the first lens barrel is rotated helically relative to the second lens barrel, to correct image distortion for the plural lens components, and also to adjust a rotational position of the first lens element. So a gate mark on an edge portion of the first lens element is offset from an effective projecting region of the image projection.

REFERENCES:
patent: 6018426 (2000-01-01), Funahashi
patent: 6469840 (2002-10-01), Nomura et al.
patent: 6963455 (2005-11-01), Nomura et al.
patent: 2004-361620 (2004-12-01), None

Affiliated with

Also associated with

Rating

Lens assembly for projecting image does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lens assembly for projecting image, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lens assembly for projecting image will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2752266