Patent ID: 7391516
Filing Date: 2008-06-24
Classification: A61B,G01N

Abstract:
1. An optical element for optically measuring information of living body, comprising: a light incident surface, a contact surface contacting said living body and having a groove to protrude said living body, and a light emission surface, wherein said groove comprises: wherein, said optical element applies light entered into said optical element from said light incident surface to the portion of the living tissue protruded by said groove through said first wall surface, and receives light that is absorbed and scattered by the protruded portion of the said living body by said groove through said second wall surface and allows the light to exit said optical element from said light emission surface; wherein a light transmittance controlling means is provided at said groove, and said light transmittance controlling means is formed, from a bottom part of said valley part of said groove, to at least a portion of said first wall surface and/or said second wall surface.