Reflective sensor

Abstract

A reflection sensor ( ) for detecting presence of a detection object is provided. The reflection sensor comprises a light emitting element ( ), a light receiving element ( ) cooperative with the light emitting element, a first resin body ( ) enclosing the light emitting element and including a first surface and a second surface away from the first surface, a second resin body ( ) enclosing the light receiving element and including a third surface and a fourth surface away from the third surface, and a third resin body ( ) holding the first and the second resin bodies. The reflection sensor further comprises a first pair of leads ( ) electrically connected to the light emitting element via a wire ( ) for example, and a second pair of leads ( ) electrically connected to the light receiving element via another wire ( ) for example. The leads of the first pair and the second pair extend out of one side surface ( ) or another side surface ( ) of the third resin body. The leads of the first pair and the second pair have respective free end portions ( ) connected to connecting pads P on a substrate S via solder H. The first resin body and the second resin body have respective upper surfaces and bottom surfaces exposed to outside.