Patent ID: 8587790

Claim:
An optical position detecting device that optically detects a position of a target object, the optical position detecting device comprising: a light source unit that emits detection light; a light receiving unit that receives the detection light reflected by the target object that is located in an emission space of the detection light; and a position detecting unit that detects the position of the target object in the emission space based on a result of the reception of the light in the light receiving unit, wherein the light source unit includes a plurality of light emitting devices, a band-shaped flexible substrate on which the plurality of light emitting devices are mounted, and a substrate supporting member that includes a convex face bent in a longitudinal direction on which the flexible substrate is arranged so as to overlap, and wherein a notch, which is concaved from the convex face at a position overlapping an end portion of the flexible substrate and into which the end portion of the flexible substrate is inserted, is disposed in the substrate supporting member, and an emission intensity monotonously changes from one end of the convex face in the longitudinal direction toward the other end side when the detection light is emitted from the light source units.