Patent ID: 9243953
Filing Date: 2016-01-26
CPC Classification: G01J

Claim Text:
1. A spectrophotometric colorimeter based on LED light source, wherein the spectrophotometric colorimeter comprises an integrating sphere, a coupling light path, and a spectrometer; an inner wall of the integrating sphere is arranged with a composite light source consisting of eight LEDs; a sphere wall of the integrating sphere defines an incident aperture; light emitted from each LED enters an interior of the integrating sphere through the incident aperture and is irradiated onto the inner wall of the integrating sphere; the coupling light path is configured to couple light at a measurement caliber such that the light can enter an incident split and to eliminate stray light from the inner wall of the integrating sphere; and after emitting out from an observation aperture of the integrating sphere, the light enters the incident split through the coupling light path and is irradiated onto a linear-array sensor after being split by a spectral light path; and different pixels of the linear-array sensor correspond to light radiation strengths at different wavelengths.