Abstract: There is provided a small-sized HUD device having a high image display reliability and a high thermal reliability. A HUD device 1 includes: an image display unit 2 including a display panel (liquid crystal panel) 22 that displays an image, and an optical system 3 that projects image light of the displayed image onto a windshield of a vehicle, in which a virtual image of the image is visually recognized by light reflected off the windshield. In the image display unit 2, an effective display region 22a that displays the image is set to a region on a side close to one end of the display panel 22. The optical system 3 includes a first reflector 31 that reflects the image light emitted from the image display unit 2 and a second reflector 32 that reflects the reflected light of the first reflector 31 toward the windshield. The image display unit 2 is disposed to face the first reflector 31, and the display panel 22 is disposed in an attitude in which the one end faces the second reflector 32 side.

Abstract: A head-up display device (10) includes one picture generation unit (20) that emits both first light (L1) and second light (L2) and includes an optical path adjuster (40) disposed in an optical path of at least one of the first light (L1) and the second light (L2) and having light transmission properties and substantially zero optical power. The optical path adjuster (40) gradually separates the first light (L1) and the second light (L2) as compared with a state before at least one of the first light (L1) and the second light (L2) enters the optical path adjuster (40) in such a manner that the first light (L1) creates a first virtual image (V1) in a position closer to an operator and the second light (L2) creates a second virtual image (V2) in a position farther from the operator than the first virtual image (V1).

Abstract: A vehicular lamp (1) includes a lamp unit (20), the lamp unit (20) including a light source (41) and a reflection device (50) serving as a light distribution pattern formation unit, wherein the light distribution pattern formation unit is irradiated with light (L) emitted from the light source (41) and emits light (LF) and is further capable of changing a light distribution pattern of the light (LF) to be emitted, and the lamp unit (20) adjusts an emission direction of the light (LF) to be emitted from the lamp unit (20) according to a change in the light distribution pattern of the light (LF) to be emitted from the reflection device (50).

Abstract: A head-up display device (10) includes one picture generation unit (20) that emits both first light (L1) and second light (L2) and includes an optical path adjuster (40) disposed in an optical path of at least one of the first light (L1) and the second light (L2) and having light transmission properties and substantially zero optical power. The optical path adjuster (40) gradually separates the first light (L1) and the second light (L2) as compared with a state before at least one of the first light (L1) and the second light (L2) enters the optical path adjuster (40) in such a manner that the first light (L1) creates a first virtual image (V1) in a position closer to an operator and the second light (L2) creates a second virtual image (V2) in a position farther from the operator than the first virtual image (V1).

Abstract: There is provided a small-sized HUD device having a high image display reliability and a high thermal reliability. A HUD device 1 includes: an image display unit 2 including a display panel (liquid crystal panel) 22 that displays an image, and an optical system 3 that projects image light of the displayed image onto a windshield of a vehicle, in which a virtual image of the image is visually recognized by light reflected off the windshield. In the image display unit 2, an effective display region 22a that displays the image is set to a region on a side close to one end of the display panel 22. The optical system 3 includes a first reflector 31 that reflects the image light emitted from the image display unit 2 and a second reflector 32 that reflects the reflected light of the first reflector 31 toward the windshield. The image display unit 2 is disposed to face the first reflector 31, and the display panel 22 is disposed in an attitude in which the one end faces the second reflector side 32.

Abstract: There are provided: a vehicle display device including a HUD device capable of ensuring safe traveling by suitably controlling a display region of an image to be displayed on the windshield of a vehicle; and a display method. A vehicle display device includes a HUD device that projects image light of an image, which is to be displayed, on a windshield WS of a vehicle such that a virtual image I* of the image is visually recognized by reflected light. The vehicle display device is operable to display a plurality of images having a priority order, and an image having a high priority order is displayed such that an image displayed in a specified region As of the windshield WS has a predetermined display rate (=an area of the image/an area of the specified region) or less. Warning images I2 and I31 to I34 are set in a priority order higher than that of the driving support images I11 to I13.

Abstract: A vehicular lamp (1) includes a lamp unit (20), the lamp unit (20) including a light source (41) and a reflection device (50) serving as a light distribution pattern formation unit, wherein the light distribution pattern formation unit is irradiated with light (L) emitted from the light source (41) and emits light (LF) and is further capable of changing a light distribution pattern of the light (LF) to be emitted, and the lamp unit (20) adjusts an emission direction of the light (LF) to be emitted from the lamp unit (20) according to a change in the light distribution pattern of the light (LF) to be emitted from the reflection device (50).

Abstract: A light source unit (60) used for a vehicular head-up display according to the present invention is provided with: a tubular multi-reflection member (61) which connects an entrance plane (63) and an exit plane (64) and which has a reflecting plane (66) provided on an inner surface thereof; and a substrate (62) which is disposed so as to face the entrance plane (63) and on which a plurality of light sources (65) are mounted in a matrix configuration. The ratio Ra=AB between the number A of light sources (65) disposed in a long-axis direction (X) of the entrance plane (63) and the number (B) of light sources (65) disposed in a short-axis direction (Y) of the entrance plane (63) is configured to be greater than the ratio Rb=C/D between the long-axis dimension C and the short-axis dimension D of the exit plane (64).

Abstract: A head-up display is provided in a vehicle and configured to display a predetermined image toward an occupant of the vehicle. The head-up display includes: an image generation unit configured to emit light for generating the predetermined image and to irradiate a windshield or a combiner; and a controller configured to control an operation of the image generation unit. The controller controls the image generation unit to select one of a planar image and a stereoscopic image as a display mode of a virtual image object formed by the predetermined image and visually recognized by the occupant through the windshield or the combiner, according to a predetermined condition.

Abstract: An HUD includes an image generator configured to emit light for generating a predetermined image, a light guide body configured to propagate the light emitted from the image generator while totally reflecting the light, an incidence HOE configured to change a direction of the light so that the light emitted from the image generator is totally reflected inside the light guide body, an emission HOE configured to change the direction of the light so that the light that propagates while being totally reflected inside the light guide body is emitted from the light guide body, and a microlens array configured to refract incident light in a predetermined direction and emit the refracted light. The microlens array is provided after the emission HOE in an optical path of the light.

Abstract: A lamp unit includes: a projective optical system; a light deflector that is provided behind the projective optical system and selectively reflects incident light toward the projective optical system; a first irradiating optical system that irradiates a reflecting part of the light deflector with first light; and a second irradiating optical system that irradiates the reflecting part of the light deflector with second light. The first irradiating optical system and the second irradiating optical system are arranged such that a direction of irradiation by the first light and a direction of irradiation by the second light are not parallel when a front of the reflecting part is viewed.

Abstract: The present invention relates to a vehicle headlight that ensures improving usage efficiency of light focusing of light emitted from a light source. A vehicle headlight (1) has a main reflecting mirror (10) having an elliptic main reflecting surface (10a) and a light source (8) positioned at a first focal point (F1) of the main reflecting surface (10) and disposed opposed to the main reflecting surface (10).

Abstract: A lamp unit includes: a projective optical system; a light deflector that is provided behind the projective optical system and selectively reflects incident light toward the projective optical system; a first irradiating optical system that irradiates a reflecting part of the light deflector with first light; and a second irradiating optical system that irradiates the reflecting part of the light deflector with second light. The first irradiating optical system and the second irradiating optical system are arranged such that a direction of irradiation by the first light and a direction of irradiation by the second light are not parallel when a front of the reflecting part is viewed.

Abstract: A projection unit is configured to provide at least one of a first image adapted to be presented to the inside of a vehicle and a second image adapted to be presented to the outside of the vehicle. A dimming film is configured to be placed in at least one of a first state in which first light corresponding to the first image is directed to the inside of the vehicle and a second state in which second light corresponding to the second image is directed to the outside of the vehicle. A control unit is configured to place the dimming film in the first state when the first image is provided, and to place the dimming film in the second state when the second image is provided.

Abstract: A vehicle lamp system includes: an imaging unit; a brightness analyzer that detects a brightness of each of a plurality of individual areas; an illuminance setting unit that defines an illuminance value of light to illuminate each individual area; a light source unit; and a light source controller. The illuminance setting unit detects a high-brightness area and a low-brightness area adjacent to each other and sets the illuminance value to increase a brightness difference between a high-brightness edge portion and a low-brightness edge portion along a boundary between the high-brightness area and the low-brightness area, thereby enhancing the boundary.