Patent ID: 9366627
Filing Date: 2016-06-14
CPC Classification: G01N

Claim Text:
1. A light transmittance measuring apparatus used to measure a light transmittance of an object, the light transmittance measuring apparatus comprising: a housing, made of an opaque material; a light source device, disposed in the housing and configured to emit a first light beam and a second light beam to the object, wherein the first light beam and the second light beam have different wavelength ranges and have a first light intensity value and a second light intensity value, respectively; a light sensor, disposed in the housing and configured to sense the first light beam and the second light beam after passing through the object and accordingly obtain a third light intensity value and a fourth light intensity value, respectively; a movable loading platform disposed in the housing and configured to move between the light source device and the light sensor to perform a position modulation operation for the object on the movable loading platform; and a microcontroller, disposed in the housing and electrically connected to the movable loading platform, the light source device and the light sensor, the microcontroller being configured to compare the first and third light intensity values and accordingly obtain the light transmittance of the object under the first light beam and compare the second and fourth light intensity values and accordingly obtain the light transmittance of the object under the second light beam.