Lighting mechanism and optical characteristic survey device

The utility model provides a lighting mechanism and optical characteristic survey device. This lighting mechanism does not make the power consumption of light source increase and is had the light beam of the illumination light of sufficient light quantity and have the light beam both sides of the reference light of sufficient light quantity. In the lighting mechanism of optical characteristic survey usefulness, radiation mechanism radiation light beam. The beam splitter sees through the light beam of illumination light and the light beam that light was refered to in the reflection jeting into under the condition by the light beam of radiation mechanism radiation. The diaphragm restriction sees through the light beam of the illumination light of beam splitter. 本实用新型提供照明机构以及光学特性测定装置。该照明机构不使光源的消耗电力增加而得到具有足够的光量的照明光的光束以及具有足够的光量的参照光的光束双方。在光学特性测定用的照明机构中，辐射机构辐射光束。分束器在射入由辐射机构辐射的光束的情况下透过照明光的光束并反射参照光的光束。光阑限制透过分束器的照明光的光束。