Patent ID: 7228166

Claim:
A biological light measuring instrument comprising: light irradiation means for irradiating light beams from a plurality of light irradiation positions to a subject; light detection means for detecting light beams irradiated from said plurality of light irradiation positions and passing through the inside of said subject at a plurality of detection positions arranged near said plurality of light irradiation positions; signal processing means for preparing a topographic image representing biological information about the inside of said subject by using quantities of light detected by said light detection means at the individual detection positions; and memory means for memorizing a three-dimensional morphological image of said subject and reference points set thereon, wherein said signal processing means includes: means for setting three-dimensional coordinate data indicative of the positional relation between said light irradiation and light detection positions and reference points set on said subject; means for generating a three-dimensional topographic image on the basis of said three-dimensional coordinate data; and means for superimposing said three-dimensional topographic image onto said three-dimensional morphological image based on said set reference points.