Radiant energy – Invisible radiation responsive nonelectric signalling – Optical change type
Patent
1987-08-21
1988-12-20
Howell, Janice A.
Radiant energy
Invisible radiation responsive nonelectric signalling
Optical change type
2504731, G01J 548
Patent
active
047926902
ABSTRACT:
An apparatus and method for monitoring an ultraviolet laser beam includes disposing in the path of an ultraviolet laser beam a substantially transparent crystal that will produce a color pattern in response to ultraviolet radiation. The crystal is exposed to the ultraviolet laser beam and a color pattern is produced within the crystal corresponding to the laser beam intensity distribution therein. The crystal is then exposed to visible light, and the color pattern is observed by means of the visible light to determine the characteristics of the laser beam that passed through crystal. In this manner, a perpendicular cross sectional intensity profile and a longitudinal intensity profile of the ultraviolet laser beam may be determined. The observation of the color pattern may be made with forward or back scattered light and may be made with the naked eye or with optical systems such as microscopes and television cameras.
REFERENCES:
patent: 2673934 (1954-03-01), Friedman
patent: 2689308 (1954-09-01), Land
patent: 3012142 (1961-12-01), Etzel
patent: 3021286 (1962-02-01), Etzel et al.
patent: 3709692 (1973-01-01), Haase et al.
patent: 3887471 (1975-06-01), Stotlar
patent: 4261662 (1981-04-01), Bluford, Jr. et al.
patent: 4320462 (1982-03-01), Lund et al.
patent: 4494003 (1985-01-01), Hager et al.
patent: 4596461 (1986-06-01), DeRosa et al.
"Radiosensitivity of Alkali-Halide Crystals", by H. Freidman and G. P. Glover, published in Nucleonics, (Jun. 1952).
"Photochromic Glasses: Properties and Application", by G. P. Smith, published in American Journal of Optometry & Archives, vol. 44, No. 6, (Jun. 1967).
Chen Chung H.
McCann Michael P.
Hannaher Constantine
Howell Janice A.
University of Tennessee Research Corporation
LandOfFree
Ultraviolet laser beam monitor using radiation responsive crysta does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultraviolet laser beam monitor using radiation responsive crysta, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultraviolet laser beam monitor using radiation responsive crysta will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1910641