Optical measuring system

Details Optical measuring system Optical measuring system

2007-10-29

2010-12-07

Epps, Georgia Y (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

C359S011000, C348S040000

Reexamination Certificate

active

07847227

ABSTRACT:
Apparatus and methods are described for measuring amplitude and phase variations in a spatially coherent beam of light. A beam of coherent light is made incident upon a spatial array of phase modulating elements displaying a pixellated first phase distribution. In a measuring region of said spatial array, the phase distribution is changed to a new value while retaining the first phase distribution outside the measuring region, for example by flashing a single pixel. The change in intensity resulting from the change in phase distribution is then determined.

REFERENCES:
patent: 5719650 (1998-02-01), Wefers et al.
patent: 6570143 (2003-05-01), Neil et al.
patent: 7442909 (2008-10-01), Holmes
patent: 2002/0146206 (2002-10-01), Aleksoff
Voronstov, et al., “Advanced phase-contrast techniques for wavefront sensing and adaptive optics”,Proceedings of the SPIE, vol. 4124, 2000. pp. 98-109.
Crossland, et al., “Holographic Optical Switching: The “Roses” Demonstrator”, Journal of Lightwave Technology, vol. 18, No. 12 , Dec. 2000 pp. 1845-1854.

Affiliated with

Also associated with

Rating

Optical measuring system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4195473