Optics: measuring and testing – By shade or color – With sample responsive to plural colors applied simultaneously
Patent
1980-03-05
1982-01-19
McGraw, Vincent P.
Optics: measuring and testing
By shade or color
With sample responsive to plural colors applied simultaneously
356419, 356448, 250238, G01N 2127, G01J 350
Patent
active
043113931
ABSTRACT:
Apparatus for determining the reflectivity of the surface of a measured object, and, in particular, for determining properties of the measured object which are connected with its reflectivity. A light source emits light along a light path so that a wide-band light beam impinges on the surface of the measured object. The light reflected by the surface of the measured object goes through a pair of narrowband light filters which pass, respectively, light beams of different narrow bands of wave-lengths effective for evaluation by a photo-detection device. The photo-detection device comprises two separate photo-detectors each covered by one of the narrow-band filters. The filters are fixed in their positions relative to the photo-detectors and transmit their different wave-lengths of light to their respective photo-detectors.
REFERENCES:
patent: 3762546 (1973-10-01), Keitel et al.
patent: 3935463 (1976-01-01), Jacobsen
patent: 3936189 (1976-02-01), De Remigis
patent: 3973118 (1976-08-01), La Montagne
patent: 4120402 (1978-10-01), Swanson
patent: 4171918 (1979-10-01), Mactaggart
patent: 4225242 (1980-09-01), Lane
LandOfFree
Apparatus for determining the reflectivity of the surface of a m does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for determining the reflectivity of the surface of a m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for determining the reflectivity of the surface of a m will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1912905