Illumination angle control using dichroic filters

Details Illumination angle control using dichroic filters Illumination angle control using dichroic filters

2008-06-12

2011-11-08

Sugarman, Scott J (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

C359S633000

Reexamination Certificate

active

08054553

ABSTRACT:
A method of controlling the illumination angle onto a target, including, illuminating onto the target with light from at least two light sources of pre-selected wavelengths; wherein each point on the target is illuminated by light from the light sources with a respective maximal illumination angle relative to a main illumination axis extending from substantially the center of the at least two light sources to the target, selecting a dichroic filter that transmits light from the at least two light sources as a function of the angle of incidence upon the filter, positioning the dichroic filter between the at least two light sources and the target to limit the transfer of light to light of the pre-selected wavelengths; and wherein the dichroic filter is selected to limit the maximal illumination angle illuminating each point on the target.

REFERENCES:
patent: 3085468 (1963-04-01), Hehn
patent: 4552441 (1985-11-01), Dewey
patent: 5268788 (1993-12-01), Fox et al.
patent: 5359192 (1994-10-01), Williams et al.
patent: 6033087 (2000-03-01), Shozo et al.
patent: 6259430 (2001-07-01), Riddle et al.
patent: 6501075 (2002-12-01), Trigiana
patent: 6871982 (2005-03-01), Holman et al.
patent: 6994453 (2006-02-01), Blanchard
patent: 7237909 (2007-07-01), Yokote et al.
patent: 7355692 (2008-04-01), Noy et al.
patent: 2002/0196450 (2002-12-01), Olszak et al.
patent: 2004/0146295 (2004-07-01), Furman et al.
patent: 2005/0030480 (2005-02-01), Lippey et al.
patent: 2006/0007538 (2006-01-01), Robinson
patent: 2007/0109528 (2007-05-01), Caldwell et al.
patent: 2007/0133088 (2007-06-01), Lippey et al.
patent: 2007/0138419 (2007-06-01), Bueno et al.
patent: 2007/0206183 (2007-09-01), Lebens et al.
patent: 2007/0211149 (2007-09-01), Burtnyk et al.
patent: 2007/0236933 (2007-10-01), Bierhuizen et al.
patent: 2008/0089052 (2008-04-01), Katzir et al.
International Searching Authority, “International Search Report”, “Written Opinion”, and IPER issued in connection with International Patent Application No. PCT/IL2009/000545, dated Sep. 8, 2009.

Affiliated with

Also associated with

Rating

Illumination angle control using dichroic filters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Illumination angle control using dichroic filters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Illumination angle control using dichroic filters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4307254