Diffractive lens optical design

Optical: systems and elements – Lens – Eyepiece

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C359S558000, C359S645000, C359S646000

Reexamination Certificate

active

06980365

ABSTRACT:
An optical system for use in a head-mounted display is provided which includes a microdisplay (4) and a magnifier (10) for producing a magnified image of the microdisplay for viewing by a human eye. The magnifier (10) includes a diffractive surface and has in order: a first element (1) having a first surface (S1) which is convex in the direction of the long conjugate, a block (3) of optical material, and a second element (2) having a second surface (S2) which is convex in the direction of the short conjugate. The first surface (S1) is preferably the diffractive surface. The magnifier provides a long eye relief, a large exit pupil, and a large field of view with a minimum of components.

REFERENCES:
patent: 5044706 (1991-09-01), Chen
patent: 5148314 (1992-09-01), Chen
patent: 5151823 (1992-09-01), Chen
patent: 5206675 (1993-04-01), Miyauchi et al.
patent: 5446588 (1995-08-01), Missig et al.
patent: 5548439 (1996-08-01), Smith
patent: 5822127 (1998-10-01), Chen et al.
patent: 5966244 (1999-10-01), Mukai et al.
patent: 5973844 (1999-10-01), Burger
patent: 6384982 (2002-05-01), Spitzer
patent: 6429954 (2002-08-01), Kasai
patent: 6618099 (2003-09-01), Spitzer
patent: 2002/0039232 (2002-04-01), Takeyama
patent: 2003/0030912 (2003-02-01), Moskovich
patent: 2003/035869 (2003-06-01), None
PCT Search Report on PCT/US2004/005103.

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

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

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

Rate now

     

Profile ID: LFUS-PAI-O-3501288

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