PROBLEM TO BE SOLVED: To provide a sensor for living body of which design simplifies the sensor structure part contained in a needle part to allow easy production thereof.SOLUTION: A detection PD element 22 is formed on a tabular single-crystal silicon substrate and trimmed to use it as a light-receiving substrate 12, and then the light-receiving substrate 12 is jointed to a light-emitting substrate 11 having an LED element 21, the light-emitting substrate 11 being a sapphire substrate or the like. A reference PD element 23 is formed on a reference base surface 13b located on the undersurface of the counter substrate 13. The light-receiving substrate 12 and the counter substrate 13 are jointed to the light-emitting substrate 11, and a fluorescent substance 15 is arranged between the light-receiving substrate 12 and the counter substrate 13. Excitation light L1 from the LED element 21 is given to the fluorescent substance 15 and the reference PD element 23.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】 針部に収納されるセンサ構造部を、簡単な構造で容易に製造できるようにした生体用センサを提供する。【解決手段】 平板状の単結晶シリコン基板に検知PD素子22を形成しトリミングしたものを受光基板12として使用し、LED素子21を有するサファイア基板などの発光基板11に、受光基板12を接合する。対向基板13の下面の参照基準面13bに参照PD素子23を形成する。発光基板11に、受光基板12と対向基板13とを接合し、受光基板12と対向基板13との間に蛍光体15を配置する。LED素子21からの励起光L1は、蛍光体15と参照PD素子23に与えられる。【選択図】図2
