| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical sensor module that improves versatility.SOLUTION: An optical sensor module 1 according to the prevent invention comprises: a light-transmissive member 2 having a recess 21 opened upward; a light-transmissive board 52 disposed inside the recess 21, with the side face in contact with the inner side face of the recess 21 defined as a first light-receiving plane A, and larger in refractive index than the light-transmissive member 2; a sensing film 51, disposed on the top face of the light-transmissive board 52, for changing its refractive index in response to a substance in a fluid; a light-emitting element 3 for emitting light toward the sensing film 51; and a light-receiving element, disposed so as to receive the light, among the light emitted from the light-emitting element 3, that is incident on and reflected by the sensing film 51 via the first light-receiving plane A, for detecting a change in the intensity of the reflected light caused by a change in the refractive index of the sensing film 51.SELECTED DRAWING: Figure 1 |
