Abstract: A heater according to an embodiment includes a substrate that is formed of a heat resistant insulating material, a heating resistor that is provided on the substrate, a conductor that is provided on the substrate and that is electrically connected to the heating resistor, and a coating film that covers the heating resistor and the conductor. A plurality of groove portions are arranged on an end surface of the substrate along an outer periphery of the substrate, and a coefficient A=100×D/(T×P) satisfies 0.4?A?0.9 where T [?m] is the thickness of the substrate, D [?m] is the depth of the groove portion in a thickness direction of the substrate, and P [?m] is a pitch between the groove portions.

Abstract: A photocatalytic filter according to an embodiment includes: a plurality of weft threads each of which includes a plurality of fibers extending in a first direction; a plurality of warp threads each of which includes a plurality of fibers extending in a second direction intersecting the first direction; and photocatalysts which are carried by the plurality of weft threads and the plurality of warp threads. At least two warp threads sandwiches at least one weft thread or at least two weft threads sandwiches at least one warp thread at the intersection portion between the weft thread and the warp thread.

Abstract: A vehicle luminaire according to an embodiment includes: a flange; a mount portion provided on one side of the flange; a light-emitting unit that is provided on an end of the mount portion opposite to the flange side and includes at least one light-emitting element; a holder which is provided on another side of the flange and into which a connector is insertable; and at least one first thermal radiation fin that is provided on the another side of the flange and extends from a peripheral edge of the flange toward the holder. In a direction in which the holder projects from the flange, the position of an end face of the holder opposite to the flange side is different from the position of a holder-side end of an end face of the first thermal radiation fin opposite to the flange side.

Abstract: A vehicle luminaire includes: a base having a first recess; at least one thermal radiation fin provided on a side of the base opposite to a side where the first recess is provided; a light-emitting module including a board having a plurality of coupling pads and at least one light-emitting element electrically connected to the coupling pads; a frame-shaped member surrounding the light-emitting element; a holder that is provided in the base, has one end connected to the frame-shaped member and has the other end provided with a second recess; a plurality of first terminals held by the frame-shaped member and having an end protruding inside the frame-shaped member and coming into contact with the coupling pad; and a plurality of second terminals that are held by the holder, have an end exposed to the inside of the second recess, and are electrically connected to the first terminals.

Abstract: A vehicle luminaire includes: a flange; a mount portion provided with a housing portion opened to an end opposite to the flange side; a board provided inside the housing portion; at least one light-emitting element provided on the board; at least one resistance provided on the board and electrically connected to the light-emitting element; at least one control element provided on the board and electrically connected to the light-emitting element, the control element having an electric resistance increasing as a temperature rises; and a temperature control unit configured to control heat generated from at least one of the light-emitting element and the resistance and transferred to the control element via the board or via the board and the mount portion.

Abstract: According to one embodiment, a vehicle lighting device includes a socket; and a light-emitting module provided on one end side of the socket. The light-emitting module includes a substrate having a wiring pattern; a plurality of light-emitting elements that are electrically connected to the wiring pattern and are connected in series to each other; and a plurality of thermistors that are electrically connected to the wiring pattern and are connected in parallel to each other. The plurality of thermistors connected in parallel to each other being connected in series with the plurality of light-emitting elements connected in series to each other.

Abstract: A vehicle luminaire according to an embodiment includes: a flange; a mount portion provided on one side of the flange; a light-emitting unit that is provided on an end of the mount portion opposite to the flange side and includes at least one light-emitting element; a holder which is provided on another side of the flange and into which a connector is insertable; and at least one first thermal radiation fin that is provided on the another side of the flange and extends from a peripheral edge of the flange toward the holder. In a direction in which the holder projects from the flange, the position of an end face of the holder opposite to the flange side is different from the position of a holder-side end of an end face of the first thermal radiation fin opposite to the flange side.

Abstract: According to one embodiment, a vehicle lighting device includes a loading portion; a substrate provided on one end side of the loading portion; a plurality of light emitting elements that are electrically connected to a wiring pattern provided on a surface of the substrate and provided side by side in a row in a first direction; and a plurality of power supply terminals that are electrically connected to the wiring pattern provided on the surface of the substrate and provided side by side in a row in a second direction perpendicular to the first direction.

Abstract: A vehicular luminaire according to embodiments includes a socket; a substrate provided on the socket and including a wiring pattern on at least one surface; at least one light-emitting element electrically connected to the wiring pattern; and a plurality of power-supply terminals extending inside the socket and including one end portion exposed from the socket, the vicinity of the end portion being bent toward the substrate.

Abstract: A vehicle luminaire according to an exemplary embodiment includes: a socket; a board provided at one end side of the socket; at least one light-emitting element provided on the board; a frame provided on the board, having a tube shape, and surrounding the light-emitting element; a sealing part provided inside the frame and covering the light-emitting element; and an optical element provided on the sealing part, at least a part of a circumferential edge being provided at an end face of the frame opposite to the board side.

Abstract: A vehicle luminaire according to an exemplary embodiment includes: a socket; a board provided at one end of the socket; and three light-emitting elements provided on the board. A triangle formed by line segments connecting respective centers of the three light-emitting elements is an inequilateral triangle in planar view. A center of the vehicle luminaire is included inside the inequilateral triangle.

Abstract: According to one embodiment, a vehicle lighting device includes a mounting portion that has a recessed portion; a plurality of bayonets that are provided on an outside surface of the mounting portion; a substrate that is provided on a bottom surface of the recessed portion; and a light emitting element that is provided on a side of the substrate opposite to a bottom surface side of the recessed portion. In a case where the vehicle lighting device is viewed from a light emitting side, at least one corner portion of the substrate overlaps with one of the plurality of bayonets.

Abstract: According to one embodiment, a lighting device for vehicle includes a socket; a light emitting unit which is provided at one end portion of the socket, and includes a light emitting element; an insulating portion which includes a resin, and is provided inside a hole provided in the socket; a power feeding terminal which has conductivity, extends inside the insulating portion, and of which one end portion protrudes from the insulating portion, and is electrically connected to the light emitting unit; and a melting portion which is connected to an inner wall face of the hole, and at least one end face of the insulating portion.

Abstract: A light emitting device for a vehicle includes a substrate; a light emitting element which is provided on the substrate; a resistive element which is provided on the substrate, and connected in series with the light emitting element; and a thermistor which is provided on the substrate. The thermistor has a positive temperature coefficient, and is connected in parallel with the resistive element.

Abstract: A lighting device for a vehicle includes a plate-shaped flange; a placing portion provided on a first face of the flange; a light emitting module provided at an end face of the placing portion, and which includes a light emitting element; and a plurality of heat radiating fins formed in a plate shape, and which is provided on a second face of the flange on a side opposite to the first face. Also, the device includes a plurality of first protrusion portions provided on the second face of the flange in a line, in a direction intersecting a direction in which the plurality of heat radiating fins are aligned; and a second protrusion portion which is provided on the second face of the flange on a side opposite to the plurality of first protrusion portions, by interposing the plurality of heat radiating fins therebetween.

Abstract: According to one embodiment, a vehicle lighting device includes a plurality of circuit portions each of which has at least one light emitting element; and a control portion that is electrically connected to the plurality of the circuit portions. The control portion connects the plurality of the circuit portions in series if an input voltage exceeds a predetermined value, and connects at least a part of the plurality of the circuit portions in parallel if the input voltage is equal to or less than the predetermined value. The predetermined value is a value equal to or more than a voltage corresponding to a current value used for failure determination of the vehicle lighting device.

Abstract: According to one embodiment, a vehicular lighting device includes a socket, a substrate provided on one end side of the socket, at least one light emitting element provided on the substrate, a Zener diode provided on the substrate, and a controller provided on the substrate. The controller shuts off a current flowing through the light emitting element based on a voltage or a current on an anode side of the Zener diode.

Abstract: A lighting device for vehicle according to an embodiment includes a main body unit which has a hole penetrating between a first end portion and a second end portion, and in which at least the vicinity of the hole has electrical conductivity; a light emitting module which is provided in the first end portion of the main body unit, and has a light emitting element; a holding unit which is provided inside the hole of the main body unit, has insulation properties, and an end portion on the second end portion side protrudes compared to a peripheral edge of the hole; and a power feeding terminal of which one end is electrically connected to the light emitting module, has electrical conductivity, and stretches inside the holding unit.

Abstract: A heater including a rectangular substrate; a resistance heat-generating element that is provided on one surface of the substrate along a longitudinal direction of the substrate; a thermistor that is provided on the other surface, which is a rear side of the one surface of the substrate, and measures temperature of the substrate; and a conductor that is provided on the other surface of the substrate, is extended up to an end portion of the substrate from the thermistor along the longitudinal direction of the substrate, and supplies power to the thermistor. A first connecting portion and a second connecting portion, which are connected to the conductor, are provided at both ends of the thermistor. A connection direction, in which the first connecting portion and the second connecting portion are arranged on the other surface of the substrate, is different from a lateral direction of the substrate.

Abstract: According to one embodiment, a vehicle lighting device includes a socket; and a light-emitting module provided on one end side of the socket. The light-emitting module includes a substrate having a wiring pattern; a plurality of light-emitting elements that are electrically connected to the wiring pattern and are connected in series to each other; and a plurality of thermistors that are electrically connected to the wiring pattern and are connected in parallel to each other. The plurality of thermistors connected in parallel to each other being connected in series with the plurality of light-emitting elements connected in series to each other.