Optical sensor device

An optical sensor device comprising:

• a solar radiation sensor configured to detect an amount of solar radiation based on an intensity of solar radiation received by a solar radiation detection element that is arranged on a surface of a circuit board;
• and
• a rain sensor that includes:
• first and second light-emitting elements configured to emit light toward a windshield of a vehicle;
• a light-receiving element configured to receive light reflected by the windshield;
• and
• a light-guide lens portion configured to guide light emitted from the first and second light-emitting elements to the windshield, and to guide light reflected by windshield to the light-receiving element, wherein
• the rain sensor is configured to detect raindrops adhering to the windshield based on an intensity of light received by the light-receiving element,
• the first and second light-emitting elements are disposed on the surface of the circuit board, and are arranged apart from each other in an x direction perpendicular to a z direction that is a direction connecting an area corresponding to the first and second light-emitting elements and an area corresponding to the light-receiving element on the surface of the circuit board,
• the light-guide lens portion includes a first incident portion configured to correspond to the first light-emitting elements and a second incident portion configured to correspond to the second light-emitting elements,
• the first and second incident portions are provided with an equalizing portion configured to equalize the intensity of incident light entering to the light-guide lens portion in the x direction, and
• the equalizing portion is configured to reduce the intensity of the incident light in the z direction among the light that is emitted from the first light-emitting element, and to allow an incident of a part of the light emitted from the second light-emitting element.