Abstract：The color rendering index (CRI) of eyepiece exit pupil light in surgical microscope directly
affected the observed effect. The current standards had no requirements about the CRI of eyepiece
exit pupil light. To study the difference of the CRI between the eyepiece exit pupil light and the
object illumination light, the research measured the CRI of the eyepiece exit pupil light and the object
illumination light in two surgical microscopes with different light sources and eyepieces. According to
the results, the CRI of eyepiece exit pupil light was lower than the object illumination light; the same
eyepiece impacted differently in different surgical microscopes. In practice, the optical system should be
taken as a reasonable choice to improve the observed effect.
刘艳珍，孟祥峰，王浩，任海萍. 手术显微镜的显色性评价[J]. 中国医疗设备, 2016, 31(8): 37-39.
LIU Yan-zhen, MENG Xiang-feng,
WANG Hao, REN Hai-ping. Color Rendering Evaluation of Surgical Microscopes. China Medical Devices, 2016, 31(8): 37-39.
