noun
Technical term in optics; a device that examines the polarization state of light.
偏光顕微鏡では、検光子を回転させて試料の複屈折を観察する。
In a polarizing microscope, the analyzer is rotated to observe the birefringence of the sample.
Compound of 検 (examine) + 光 (light) + 子 (device/tool), a technical term formed in Japanese for optical instruments.