Method and apparatus for homogenizing a collimated light beam

Details Method and apparatus for homogenizing a collimated light beam Method and apparatus for homogenizing a collimated light beam

1991-04-23

1994-07-19

Sikes, William L.

Optical: systems and elements

Lens

Selective wavelength transmitting or blocking

359710, 359722, G02B 300

Patent

active

053314662

ABSTRACT:
A method and apparatus for smoothing and homogenising the cross-sectional intensity distribution of the output from an excimer laser for improved application of excimer lasers to optical laser surgery to the cornea. The laser beam is focused by means of a cylindrical lens or mirror and then filtered using a narrow gap spatial filter to smooth the intensity distribution by removing high spatial frequencies. The resulting output beam may be collimated by means of a second cylindrical lens or mirror for application to further optical processes.

REFERENCES:
patent: 3821794 (1974-06-01), Yoneyama
patent: 4783133 (1988-11-01), Chen
patent: 5059013 (1991-11-01), Jain
patent: 5080474 (1992-01-01), Miyamoto
patent: 5090798 (1992-02-01), Kohayakawa
Optical System for Laser Machine of Narrow Slots, M. A. Grimm vol. 14 No. 19 Feb. 1972 IBM.

Affiliated with

Also associated with

Rating

Method and apparatus for homogenizing a collimated light beam does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for homogenizing a collimated light beam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for homogenizing a collimated light beam will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-524397