A measuring-point member for optical measurement.

摘要

Disclosed is a self-illuminating measurable-point member comprising; a light source, a fine through-hole which permits light from the light source to permeate there-through, and a diffusible member which diffuses light permeating the fine through-hole. Light from the light source is condensed via the fine through-hole and diffused via the diffusible member. <IMAGE>