A ventilation member includes: a cylindrical holding member including an outer projection portion; a ventilation film mounted to cover one end of the holding member in a centerline direction, the ventilation film preventing a liquid and solid from entering the holding member, the ventilation film permitting a flow of gas between the inside and the outside; and a cover member provided around the holding member, the cover member including a side wall portion, a top portion, and an inner projection portion, the top portion closing one end of the side wall portion in the centerline direction, the inner projection portion projecting inward from an inner circumferential surface of the side wall portion and contacting the outer projection portion of the holding member so as to form a ventilation passage between the ventilation film and the top portion, the ventilation passage allowing gas to flow therethrough.

Methods for reducing road surface glare from an automotive headlight for an observer not viewing through a polarizing filter are described. The use of a reflective polarizer for reducing road surface glare from an automotive headlight for an observer not viewing through a polarizing filter are also described. A low-beam headlight including a light source, a housing, and a reflective polarizer is also described. The reflective polarizer has a pass axis and the pass axis forms an angle with a road surface between 45 degrees and 135 degrees.

Methods for reducing road surface glare from an automotive headlight for an observer not viewing through a polarizing filter are described. The use of a reflective polarizer for reducing road surface glare from an automotive headlight for an observer not viewing through a polarizing filter are also described. A low-beam headlight including a light source, a housing, and a reflective polarizer is also described. The reflective polarizer has a pass axis and the pass axis forms an angle with a road surface between 45 degrees and 135 degrees.

A vehicle lamp includes a light source unit for road surface drawing capable of forming a light source image longer in an upper and lower direction than a left and right direction of the lamp and a projection lens through which light forming the light source image is transmitted and which projects a predetermined light distribution pattern on a road surface. A light emitting surface or a light transmitting surface of the light source unit is disposed in a vicinity of a rear focal point of the projection lens. The light emitting surface or the light transmitting surface is inclined with respect to an upper and lower direction orthogonal to an optical axis of the projection lens.

A vehicle lamp includes a light source unit for road surface drawing capable of forming a light source image longer in an upper and lower direction than a left and right direction of the lamp and a projection lens through which light forming the light source image is transmitted and which projects a predetermined light distribution pattern on a road surface. A light emitting surface or a light transmitting surface of the light source unit is disposed in a vicinity of a rear focal point of the projection lens. The light emitting surface or the light transmitting surface is inclined with respect to an upper and lower direction orthogonal to an optical axis of the projection lens.

There is provided herein a navigational device for augmenting navigational instructions. The navigational device comprises a high intensity light source that points out/indicates navigational landmarks along a route in advance of the vehicle, such as signposts, offramps and the like such that the driver need not take eyes off the road. The navigational device may comprise a gimbal for the directional control of the high-intensity light source which may control the direction of the high-intensity light source for various navigational waypoint instructions along a route. The navigational device may employ text recognition of various road signs so as to control the respective direction of the high-intensity light source.

A light-emitting device includes a substrate including a first electrode group and a second electrode group, a first light emitting unit, a second light emitting unit, and a side wall. The first light emitting unit is provided on the upper surface of the substrate and electrically connected to the first electrode group. The second light emitting unit is provided on the upper surface of the substrate and electrically connected to the second electrode group. The side wall surrounds the first light-emitting unit and the second light-emitting unit. The first light emitting unit and the second light emitting unit are arranged side by side such that a separation space between the first light emitting unit and the second light emitting unit is smaller than a space between the second light emitting unit and an outer peripheral surface of the side wall.

A light-emitting device includes a substrate including a first electrode group and a second electrode group, a first light emitting unit, a second light emitting unit, and a side wall. The first light emitting unit is provided on the upper surface of the substrate and electrically connected to the first electrode group. The second light emitting unit is provided on the upper surface of the substrate and electrically connected to the second electrode group. The side wall surrounds the first light-emitting unit and the second light-emitting unit. The first light emitting unit and the second light emitting unit are arranged side by side such that a separation space between the first light emitting unit and the second light emitting unit is smaller than a space between the second light emitting unit and an outer peripheral surface of the side wall.

A vehicular lighting fixture is a vehicular lighting fixture configured to illuminate a side in front of a vehicle, and includes a parallel light illumination device configured to emit parallel light and a projection optical system configured to project the parallel light emitted from the parallel light illumination device to a forward side, and in the projection optical system, a focal length of a horizontal component is smaller than a focal length of a vertical component.

A lighting device mounted on a vehicle includes a first light source, a second light source, a heat dissipation member having a wall defining a hollow portion and configured to dissipate heat generated by operations of the first light source and the second light source, and a single reflector member mounted on the heat dissipation member. The first light source and the second light source are disposed at positions facing the hollow portion with the wall interposed therebetween, respectively. The first light source and the second light source are configured to emit light in directions intersecting with a front and rear direction, respectively. The reflector member has a first reflecting surface configured to reflect light emitted from the first light source in a predetermined direction, and a second reflecting surface configured to reflect light emitted from the second light source in a predetermined direction.