Method and apparatus for measuring color and/or composition

G - Physics – 01 – N

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G01N 21/25 (2006.01) G01J 3/46 (2006.01) G01N 21/59 (2006.01) G01N 21/64 (2006.01) G01N 21/89 (2006.01)

Patent

CA 2312709

The invention relates to a method and apparatus for determining the color and/or composition of a material. A sample of the material is illuminated with at least three illumination bands singly or in combination, said illumination bands collectively substantially spanning at least the visible range. The light reflected or transmitted by the sample is measured with at least four light detector elements responsive to light in wavelength bands which substantially span the visible range when the sample is illuminated. The measured reflected or transmitted light is compared to the light reflected or transmitted by a reference material of known apparent emissivity or transmissivity and the apparent emissivity or transmissivity of the sample is calculated therefrom.

La présente invention concerne un procédé et un appareil permettant de déterminer la couleur et/ou la composition d'un matériau. On illumine un échantillon du matériau à l'aide d'au moins trois bandes d'éclairement, individuellement ou combinées les unes aux autres, lesdites bandes d'éclairement couvrant collectivement, dans une large mesure, au moins la gamme visible. On mesure la lumière réfléchie ou transmise par l'échantillon à l'aide d'au moins quatre éléments détecteurs de lumière sensibles à la lumière dans des bandes de longueur d'ondes qui couvrent dans une large mesure la gamme visible lorsque l'échantillon est éclairé. On compare la lumière réfléchie ou transmise mesurée à la lumière réfléchie ou transmise par un matériau de référence d'émissivité ou de transmissivité apparente connue et on calcule sur cette base l'émissivité ou la transmissivité apparente de l'échantillon.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for measuring color and/or composition 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 color and/or composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring color and/or composition will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1495150

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.