Abstract: An information display apparatus capable of reducing the viewpoint movement of a driver and achieving safer driving in consideration of the relationship between the traveling speed and the stopping distance of a vehicle is provided. The information display apparatus is configured to display image information in a transportation and comprises a HUD apparatus disposed between a windshield of the transportation and an instrument panel of the transportation. The HUD apparatus detects a viewpoint position of a driver; and displays a virtual image of the image information in front of the transportation by reflecting light emitted from the HUD apparatus to display the image information by the windshield. The HUD apparatus is configured to set a display position of the virtual image in accordance with movement of the viewpoint position of the driver who is driving the transportation.

Abstract: An information display apparatus capable of reducing the viewpoint movement of a driver and achieving safer driving in consideration of the relationship between the traveling speed and the stopping distance of a vehicle is provided. The information display apparatus is configured to display image information in a transportation and comprises a HUD apparatus disposed between a windshield of the transportation and an instrument panel of the transportation. The HUD apparatus detects a viewpoint position of a driver; and displays a virtual image of the image information in front of the transportation by reflecting light emitted from the HUD apparatus to display the image information by the windshield. The HUD apparatus is configured to set a display position of the virtual image in accordance with movement of the viewpoint position of the driver who is driving the transportation.

Abstract: An information display apparatus capable of reducing the viewpoint movement of a driver and achieving safer driving in consideration of the relationship between the traveling speed and the stopping distance of a vehicle is provided. The information display apparatus is configured to display image information in a transportation and comprises a HUD apparatus disposed between a windshield of the transportation and an instrument panel of the transportation. The HUD apparatus detects a viewpoint position of a driver; and displays a virtual image of the image information in front of the transportation by reflecting light emitted from the HUD apparatus to display the image information by the windshield. The HUD apparatus is configured to set a display position of the virtual image in accordance with movement of the viewpoint position of the driver who is driving the transportation.

Abstract: An information display apparatus capable of reducing the viewpoint movement of a driver and achieving safer driving in consideration of the relationship between the traveling speed and the stopping distance of a vehicle is provided. The information display apparatus is configured to display image information in a transportation and comprises a HUD apparatus disposed between a windshield of the transportation and an instrument panel of the transportation. The HUD apparatus detects a viewpoint position of a driver; and displays a virtual image of the image information in front of the transportation by reflecting light emitted from the HUD apparatus to display the image information by the windshield. The HUD apparatus is configured to set a display position of the virtual image in accordance with movement of the viewpoint position of the driver who is driving the transportation.

Abstract: In relation to a HUD apparatus having an AR function, the shift between an object and a virtual image (AR image) is reduced. The HUD apparatus extracts a predetermined object based on an image taken by an external camera, acquires object information including an object position in space, viewpoint position information of a driver and the amount of movement of the viewpoint position in space based on an image taken by an internal camera, and information including a position of a virtual image region in space. The HUD apparatus generates the image to be superimposed on the object, and corrects a display position of the image in the virtual image region including at least a position in a horizontal direction, and performs conversion processing at the time of the correction so that a virtual image region is set as a display position of the image after correction.

Abstract: In relation to a HUD apparatus having an AR function, the shift between an object and a virtual image (AR image) is reduced. The HUD apparatus extracts a predetermined object based on an image taken by an external camera, acquires object information including an object position in space, viewpoint position information of a driver and the amount of movement of the viewpoint position in space based on an image taken by an internal camera, and information including a position of a virtual image region in space. The HUD apparatus generates the image to be superimposed on the object, and corrects a display position of the image in the virtual image region including at least a position in a horizontal direction, and performs conversion processing at the time of the correction so that a virtual image region is set as a display position of the image after correction.

Abstract: An information display apparatus capable of reducing the viewpoint movement of a driver and achieving safer driving in consideration of the relationship between the traveling speed and the stopping distance of a vehicle is provided. The information display apparatus is configured to display image information in a transportation and comprises a HUD apparatus disposed between a windshield of the transportation and an instrument panel of the transportation. The HUD apparatus detects a viewpoint position of a driver; and displays a virtual image of the image information in front of the transportation by reflecting light emitted from the HUD apparatus to display the image information by the windshield. The HUD apparatus is configured to set a display position of the virtual image in accordance with movement of the viewpoint position of the driver who is driving the transportation.

Abstract: Provided is an information display apparatus that significantly improves light resistance with respect to sunlight. The information display apparatus, which displays video-image information on a projection surface by a virtual image, includes in a housing partly having an opening: a video-image-light generator that generates video-image light for displaying the video-image information; a video-image-light processor that performs a predetermined optical processing to a video image generated by the video-image-light generator; and a projector that projects, onto the projection surface through the opening of the housing, the video-image light optically processed by the video-image-light processor so that a viewer is capable of virtually recognizing the video-image information as a virtual image in front of the projection surface, wherein a light path in the housing is provided with a suppressor selectively suppressing a P-polarizing component of light in a visible light region.

Abstract: An image display apparatus 100 for a vehicle is provided with: an image display unit 2 that has a light source and a display element and outputs image light; a mirror 3 that reflects the image light output by the image display unit 2 toward a windshield 7; a mirror drive unit 4 that changes the angle and position of the mirror 3; and a control unit 10 that determines amounts of change in the angle and position of the mirror and controls the mirror drive unit 4. The control unit 10 makes determinations of the amount of change for the angle and position of the mirror in association with each other such that the image is visible even if the position of the driver's eyes 8 changes and the display state of the image with respect to the driver does not change.

Abstract: A head-up display apparatus displays a virtual image suitably overlapped with actual scenery in accordance with a running condition of a vehicle. The head-up display apparatus acquires various kinds of vehicle information which can be detected by a vehicle and the display of the video image is based on the vehicle information. A mirror is configured to reflect the video image formed by the video image display to project onto the windshield. A mirror driver is configured to change an angle of the mirror and a display distance adjusting mechanism is configured to adjust a display distance of the virtual image with respect to the driver. The angle of the mirror is adjusted via the mirror driver based on the vehicle information such that the virtual image can be displayed with respect to the driver to be overlapped with the scenery.

Abstract: A head-up display includes a backlight, a liquid crystal display panel, a virtual image optical system, a wavelength selection member that is made of resin having an optical characteristic which absorbs infrared rays and transmits a visible light, and a housing that houses the virtual optical system and the wavelength selection member, in which the virtual optical system includes a lens unit and a free-form surface mirror disposed along an emission direction of the display image light in order from a position closer to an emission surface of the display image light in the liquid crystal display panel, and the wavelength selection member is disposed on an optical path of the display image light extending from an emission surface of the display image light in the liquid crystal display panel to an opening of the housing.

Abstract: A head-up display includes a backlight, a liquid crystal display panel, a virtual image optical system, a wavelength selection member that is made of resin having an optical characteristic which absorbs infrared rays and transmits a visible light, and a housing that houses the virtual optical system and the wavelength selection member, in which the virtual optical system includes a lens unit and a free-form surface mirror disposed along an emission direction of the display image light in order from a position closer to an emission surface of the display image light in the liquid crystal display panel, and the wavelength selection member is disposed on an optical path of the display image light extending from an emission surface of the display image light in the liquid crystal display panel to an opening of the housing.

Abstract: Provided is an information display apparatus that significantly improves light resistance with respect to sunlight. The information display apparatus, which displays video-image information on a projection surface by a virtual image, includes in a housing partly having an opening: a video-image-light generator that generates video-image light for displaying the video-image information; a video-image-light processor that performs a predetermined optical processing to a video image generated by the video-image-light generator; and a projector that projects, onto the projection surface through the opening of the housing, the video-image light optically processed by the video-image-light processor so that a viewer is capable of virtually recognizing the video-image information as a virtual image in front of the projection surface, wherein a light path in the housing is provided with a suppressor selectively suppressing a P-polarizing component of light in a visible light region.

Abstract: A head-up display apparatus displays a virtual image suitably overlapped with actual scenery in accordance with a running condition of a vehicle. The head-up display apparatus acquires various kinds of vehicle information which can be detected by a vehicle and the display of the video image is based on the vehicle information. A mirror is configured to reflect the video image formed by the video image display to project onto the windshield. A mirror driver is configured to change an angle of the mirror and a display distance adjusting mechanism is configured to adjust a display distance of the virtual image with respect to the driver. The angle of the mirror is adjusted via the mirror driver based on the vehicle information such that the virtual image can be displayed with respect to the driver to be overlapped with the scenery.

Abstract: An image display apparatus 100 for a vehicle is provided with: an image display unit 2 that has a light source and a display element and outputs image light; a mirror 3 that reflects the image light output by the image display unit 2 toward a windshield 7; a mirror drive unit 4 that changes the angle and position of the mirror 3; and a control unit 10 that determines amounts of change in the angle and position of the mirror and controls the mirror drive unit 4. The control unit 10 makes determinations of the amount of change for the angle and position of the mirror in association with each other such that the image is visible even if the position of the driver's eyes 8 changes and the display state of the image with respect to the driver does not change.

Abstract: Provided is a precise alignment method for an optical component that positions a slider to X-axis and Y-axis coordinates of maximal intensity in a manner such that frame images of a laser beam passing through an optical waveguide are captured while relatively moving the slider and a semiconductor laser device at a uniform speed in the X and Y directions, the X-axis coordinate of the maximal intensity is calculated by performing a fitting calculation only in the X direction, frame images of a laser beam passing through the optical waveguide are captured by relatively moving the slider and the semiconductor laser device at a uniform speed only in the Y direction while the X-axis coordinate is fixed, and the Y-axis coordinate of the target maximal intensity is calculated by performing a fitting calculation only in the Y direction.

Abstract: Provided is a precise alignment method for an optical component that positions a slider to X-axis and Y-axis coordinates of maximal intensity in a manner such that frame images of a laser beam passing through an optical waveguide are captured while relatively moving the slider and a semiconductor laser device at a uniform speed in the X and Y directions, the X-axis coordinate of the maximal intensity is calculated by performing a fitting calculation only in the X direction, frame images of a laser beam passing through the optical waveguide are captured by relatively moving the slider and the semiconductor laser device at a uniform speed only in the Y direction while the X-axis coordinate is fixed, and the Y-axis coordinate of the target maximal intensity is calculated by performing a fitting calculation only in the Y direction.