JP2006081893A5 - - Google Patents

Claims (14)

The incident surface on which the emitted light is incident, the contact surface in contact with the living tissue, and the light reflected by the contact surface in contact with the living tissue, or the living tissue through the contact surface in contact with the living tissue An optical element having an exit surface that emits light that has passed through;
To expose the contact surface and an optical element cover provided so as to surround the outer peripheral portion of the optical element,
An optical member for measuring biological information , wherein a space in which a part of the biological tissue can enter is formed between the optical element and the optical element cover . The contact surface of claim 1, wherein projecting outwardly of the space, the biological information measuring optical member. A movable space cover provided to cover the space;
The space cover, when pressed by the living tissue that is in contact with the contact surface, according to claim 1, wherein the sink into the space, the biological information measuring optical member. The optical member for measuring biological information according to claim 3 , wherein the space cover is held by an elastic body. Wherein when the living tissue is in contact with the contact surface, the further claim 1, further comprising a pressure reducing means for reducing the pressure of the space, the biological information measuring optical member. A movable space cover having a window provided to cover the space;
When the space cover is pressed by the living tissue in contact with the contact surface, the space cover sinks into the space,
The optical member for measuring biological information according to claim 5 , wherein the decompression unit decompresses the space by exhausting air through the window.   2. The optical member for measuring biological information according to claim 1, further comprising a dimming means provided on all or part of the outer surface of the optical element cover. The biological information measuring optical member according to claim 7 , wherein the dimming means is at least one of a light reflector that reflects light, a light absorber that absorbs light, and a light scatterer that scatters light. .   The biological member for measuring biological information according to claim 1, wherein the contact surface has a groove. The optical member for measuring biological information according to claim 9 , wherein the optical element has a refractive index of 1.55 or more.   The biological member for measuring biological information according to claim 1, wherein the contact surface has a curved surface.   The optical member for measuring biological information according to claim 1, wherein a portion of the end face of the optical element cover that contacts the living tissue has a curved surface. The optical member for biological information measurement according to claim 1,
A light source that emits the light;
A photodetector for detecting the light emitted from the emission surface;
A biological information calculation apparatus comprising: a calculation unit that calculates biological information related to a living body having the living tissue based on the detection result. The biological information that is calculated is as claimed in claim 1 3 wherein the information relating to the concentration of a substance contained in the living body tissue, the biological information calculation apparatus.