Abstract: An electronic device includes a device body and a stand supporting the device body. The stand includes: a base; a suction member facing the lower surface of base, including a suction surface that adheres to the placement surface by negative pressure generated in a gap between the placement surface and the suction surface, and including a ventilation hole in fluid communication with the gap; and a slide valve, located between the base and the suction member, that slides along the lower surface of the base between opened and closed positions where the ventilation hole is opened and closed to let and interrupt air into the gap, respectively.

Abstract: An electronic device includes a device body and a stand supporting the device body. The stand includes: a base; a suction member facing the lower surface of base, including a suction surface that adheres to the placement surface by negative pressure generated in a gap between the placement surface and the suction surface, and including a ventilation hole in fluid communication with the gap; and a slide valve, located between the base and the suction member, that slides along the lower surface of the base between opened and closed positions where the ventilation hole is opened and closed to let and interrupt air into the gap, respectively.

Abstract: An electronic device includes a device main body and a stand that is placed on a sucked surface and supports the device main body. The stand includes a base portion and an elastic body that is disposed on a lower surface of the base portion and has a suction surface that is attached by suction to the sucked surface with negative pressure generated in a gap between the suction surface and the sucked surface. The elastic body generates no negative pressure in the gap when no external force is exerted on the stand in a direction to separate from the sucked surface while the stand is placed on the sucked surface. The elastic body generates negative pressure in the gap by being elastically deformed in the direction to separate from the sucked surface when the external force is exerted on the stand while the stand is placed on the sucked surface.

Abstract: An electronic device includes a device main body and a stand that is placed on a sucked surface and supports the device main body. The stand includes a base portion and an elastic body that is disposed on a lower surface of the base portion and has a suction surface that is attached by suction to the sucked surface with negative pressure generated in a gap between the suction surface and the sucked surface. The elastic body generates no negative pressure in the gap when no external force is exerted on the stand in a direction to separate from the sucked surface while the stand is placed on the sucked surface. The elastic body generates negative pressure in the gap by being elastically deformed in the direction to separate from the sucked surface when the external force is exerted on the stand while the stand is placed on the sucked surface.

Abstract: The light receiving device includes the illuminance sensor which detects illuminance of external light, and a light guide portion which guides the external light into the sensor. The light guide portion has a light incident surface and a light exit surface. At least one of the light incident surface and the light exit surface has an inclined surface, the external light introduced into the light guide portion through the light incident surface contains external light incident on the light incident surface from a predetermined angle direction and external light incident on the light incident surface from a horizontal direction, and an angle of the inclined surface is set such that a difference between light reception sensitivity of the sensor to the external light incident from the predetermined angle direction and light reception sensitivity of the sensor to the external light incident from the horizontal direction falls within a predetermined range.