Apparatus and methods for extending depth of field in image proj

Details Apparatus and methods for extending depth of field in image proj Apparatus and methods for extending depth of field in image proj

1999-05-07

2000-05-30

Spyrou, Cassandra

Optical: systems and elements

Diffraction

359738, 359888, 359894, 382254, 382255, 355 55, G02B 518, G02B 308, G02K 942

Patent

active

060697385

ABSTRACT:
An optical system for providing an in-focus, extended depth of field image on a projection surface includes an encoded mask or light encoder for preceding the light to include object information (or, equivalently, information about the desired image), and an extended depth of field (EDF) mask, for extending the depth of field of the projection system. In addition to including object information, the encoded mask encodes the light from the light source to account for the variations introduced by the EDF mask in extending the depth of field, so that no post processing is required.

REFERENCES:
patent: 3614310 (1971-10-01), Korpel
patent: 4804249 (1989-02-01), Reynolds et al.
patent: 5218471 (1993-06-01), Swanson et al.
patent: 5610684 (1997-03-01), Shiraishi
patent: 5748371 (1998-05-01), Cathey, Jr. et al.
patent: 5969855 (1997-03-01), Ishiwata et al.

Affiliated with

Also associated with

Rating

Apparatus and methods for extending depth of field in image proj does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and methods for extending depth of field in image proj, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and methods for extending depth of field in image proj will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1914900