Murata Manufacturing Co., Ltd.

Kaname Hanada

Tomiya Sonoda

Tsutomu Yamasaki

Shinichiro Chiku

Hiroto Ishikawa

Atsushi Kaji

A light-emitting element and a light-receiving element are provided on a surface of a substrate. The light-emitting element and the light-receiving element are sealed by transparent resin members and, respectively. A lens is provided at the transparent resin member at a position above the light-emitting element. The center of the lens and a mounting position of the light-emitting element are disposed being shifted from each other. With this, an optical axis of light outputted via the lens is slanted toward an opposite direction side with respect to the light-receiving element at a predetermined elevation angle. In this case, a beam divergence angle of light outputted from the lens is set to a predetermined value.

Optical sensor

Three light emitting elements and one light receiving element are provided on a surface of a substrate. The light receiving element is disposed within a first triangular region connecting the three light emitting elements. A first rectangle circumscribed around the triangular region is formed. In addition, a second rectangle circumscribed around a second triangle formed when intersections of a virtually set XY plane and optical axes of light beams emitted from the three light emitting elements are perpendicularly projected on the surface of the substrate, is formed. Directions of the light emitted from the three light emitting elements are set such that at least either one of length and breadth dimensions of the second rectangle is larger than a corresponding one of length and breadth dimensions of the first rectangle.

Growing community of inventors

Nagaokakyo, Japan

Kaname Hanada