Optics: measuring and testing – Lamp beam direction or pattern
Patent
1977-05-10
1978-10-17
Corbin, John K.
Optics: measuring and testing
Lamp beam direction or pattern
358 96, G01J 100
Patent
active
041205898
ABSTRACT:
A video signal produced by picking up the light image of light projected upon a screen is quantized by a plurality of voltage comparators grouped in pairs and applied with different reference voltage levels. One of the outputs of comparators of respective pairs is inverted in an orderly manner and then synthesized with the rest of the outputs to produce a dark and bright stripe signal which is displayed on a video display device to form a radially discrete annular pattern representative of equibrightness curves.
REFERENCES:
Bruder, J.A. "Instrumentation for Mapping Light Intensity Contours", IEEE Transactions on Vehicular Technology, vol. VT-19, No. 3, Aug. 1970.
Kojima Koji
Kubushiro Naoaki
Mima Yoshitada
Corbin John K.
Helzer Charles W.
Hitachi Denshi Kabushiki Kaisha
Kabushiki Kaisha Banzai
Rosenberger R. A.
LandOfFree
Method and apparatus for measuring the distribution of a light f 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 measuring the distribution of a light f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring the distribution of a light f will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-373113