Pulsed light colorimeter

Details Pulsed light colorimeter Pulsed light colorimeter

G - Physics

01

N

73/56

G01N 21/01 (2006.01) G01N 21/25 (2006.01)

Patent

CA 1078641

ABSTRACT Apparatus for measuring reflected or transmitted light is described. The apparatus comprises a filter type spectro- photometer having a wavelength range of from about 200 nm (nanometers) to about 1,100 nm which includes a sample illu- minating light source capable of producing an extremely intense light of short duration; light diffusing means; a light filter for transmission of a selected wave-length; at least two independent light sensing means; and separate means defining light transmission paths for the passage of light from the light source to one light sensing means and from the illuminated sample to the other light sensing means. In a preferred embodiment the apparatus includes a light diffusing integrating sphere. In another embodiment, a replaceable or repositionable module can be used to con- vert the apparatus from reflectance to transmittance spectro- photomer. - 1 -

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