Continuous optical path monitoring of optical flame and radiatio

Details Continuous optical path monitoring of optical flame and radiatio Continuous optical path monitoring of optical flame and radiatio

1997-07-24

1999-06-22

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

25033915, 250353, 250372, G01J 508, G01J 504

Patent

active

059144890

ABSTRACT:
Apparatus for the optical detection of flames or explosions, having an optical structure to perform continuous optical path monitoring of the optical window receiving the optical radiation, to ensure against the buildup of radiation absorbing or scattering materials. A light source internal to the housing illuminates a straight optically transmissive quartz or sapphire rod that protrudes through the housing beyond the optical window. The protruding tip of the light rod is beveled and metallized on the bevel to provide internal reflection of the light from the source, the angle of the bevel being such that the reflected light on exiting the light rod illuminates the optical window and the optical detector behind it, thereby providing a test for the cleanliness of the optical window. This optical technique for checking the cleanliness of the optical viewing element can be utilized by other optical instruments including imaging arrays, surveillance cameras and weapons.

REFERENCES:
patent: 3952196 (1976-04-01), Larsen
patent: 4199682 (1980-04-01), Spector et al.
patent: 4365896 (1982-12-01), Mihalow
patent: 4369364 (1983-01-01), Kuntermann
patent: 4405234 (1983-09-01), Juaire
patent: 4435093 (1984-03-01), Krause et al.
patent: 4529881 (1985-07-01), Ceurvels et al.
patent: 4544843 (1985-10-01), Kern et al.
patent: 4547673 (1985-10-01), Larsen et al.
patent: 4560874 (1985-12-01), Cinzori et al.
patent: 4709153 (1987-11-01), Schofield
patent: 4728794 (1988-03-01), Allen
patent: 4826316 (1989-05-01), Odum
patent: 5065025 (1991-11-01), Doyle
patent: 5325171 (1994-06-01), Shimizu

Affiliated with

Also associated with

Rating

Continuous optical path monitoring of optical flame and radiatio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Continuous optical path monitoring of optical flame and radiatio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous optical path monitoring of optical flame and radiatio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1709447