Method and apparatus for monitoring optical radiation

Details Method and apparatus for monitoring optical radiation Method and apparatus for monitoring optical radiation

1975-10-07

1977-03-29

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

Ultraviolet light responsive means

356 74, G01J 142

Patent

active

040151301

ABSTRACT:
A method and apparatus for monitoring optical radiation which, in a preferred embodiment, takes the form of a biologically weighted ultraviolet radiant energy monitor which provides a direct indication of the hazards to humans from the ultraviolet radiant energy emanating from the optical radiation source being monitored. The source of radiation is first spectrally dispersed by passage through a suitable prism or diffraction grating. Portions of the spectrally dispersed radiation are mechanically masked in accordance with a predetermined biological weighting. The subsequent weighted output from the mechanical mask is then fed to a suitable detector. In the various embodiments of the ultraviolet hazard monitor, a quartz prism or diffraction grating spectrograph is utilized to spectrally disperse the incident radiation spatially and a plate coated with sodium salicylate or other suitable converter is placed in the exit plane of the spectrograph. The sodium salicylate plate fluoresces in the blue in response to incident ultraviolet radiation. The intensity of the biologically weighted blue light may then be conveniently and readily detected by a blue sensitive detector to provide an immediate readout of the potential ultraviolet radiation hazard from the unknown optical source.

REFERENCES:
patent: 3314327 (1967-04-01), Killpatrick et al.
patent: 3572933 (1971-03-01), Boostrom
patent: 3742240 (1973-06-01), Jonasson
patent: 3851970 (1974-12-01), Adler et al.

Affiliated with

Also associated with

Rating

Method and apparatus for monitoring optical radiation 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 monitoring optical radiation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for monitoring optical radiation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-550343