Abstract: About the axis of a first direction, a transmission-type screen is inclined with respect to a surface perpendicular to the optical axis of an incident scanning beam at a second rotation angle of opposite sign to a first rotation angle at which a scanner is inclined with respect to a surface perpendicular to a light beam incident from a light source unit, whereby the transmission-type screen is disposed so that a display image is curved roughly along a negative direction of a second direction orthogonal to the first direction, and the curvature direction of the display image is in a direction of cancelling the curvature of a virtual image generated by a curved surface shape of a first mirror, a second mirror, and a windshield.

Abstract: The purpose of the present invention is to provide a head-up display which does not easily cause a feeling of strangeness in the way in which a virtual image disappears with the movement of a point of view while achieving improved light use efficiency.

Abstract: A virtual image display unit displays a virtual image for an object in a real scene ahead of the vehicle. A display control unit causes the virtual image to be displayed at a correction display position closer to the upper side in the vertical direction and/or a deep side in the depth direction when viewed from a viewer, than a standard display position at which the virtual image is normally displayed in association with the object in the real scene ahead of a host vehicle, in accordance with the relative speed or the relative distance between the host vehicle and the object in the real scene.

Abstract: A dimmer unit is equipped with a first light detection unit that modulates the light intensity of composite laser light emitted from a composite laser light emission unit and detects the light intensity of the composite laser light before entering the dimmer unit, and a second light detection unit that detects the light intensity of the composite laser light after entering the dimmer unit. The light intensity characteristic for each color in the composite laser light emission unit is calculated on the basis of the light intensity detected by the first light detection unit, and the white balance of each color in the composite laser light emission unit is adjusted on the basis of the light intensity detected by the second light detection unit.

Abstract: The present invention relates to a head-up display device that allows a viewer to view an actual scene overlapped with a virtual image, and that is capable of creating a display image with suppressed luminance variation. A MEMS scanner scans synthesized laser light two-dimensionally in the main scanning direction H and the sub-scanning direction V substantially orthogonal to the main scanning direction H. A controller unit causes a first scan for generating a display image M on a transmissive screen by scanning in the main scanning direction H at high speed while scanning in the sub-scanning direction V, and a second scan for scanning a position displaced more toward the sub-scanning direction V than the first scan on the transmissive screen.

Abstract: A color mixing device and a display device are configured to represent the color white in a consistent fashion, even in low-luminance areas. These devices are provided with: a red light source for outputting red light at optical intensity in response to a first current presented thereto; a green light source for outputting green light at optical intensity in response to a second current presented thereto; a blue light source for outputting blue light at optical intensity in response to a third current presented thereto; and a color mixing means for color mixing of the red light, the green light, and the blue light together. A light attenuating part transmits or reflects the blue light, bringing about attenuation and advance thereof in the output direction. The blue light output by the blue light source is attenuated to a greater extent than the light of the other colors during output.

Abstract: A scanning-type projection device is provided with an emitted-light-intensity control unit for controlling the light intensity of a laser light emitted by a laser light source unit, a polarization direction control unit for controlling the polarization direction of the laser light, a scanning unit for scanning the laser light and generating a display image, and a divergence unit on which the laser light scanned by the scanning unit is incident. The emitted-light-intensity control unit has a polarization control element for controlling the polarization state of the laser light, and a polarizing plate on which the laser light emitted from the polarization control element is incident, and the polarization direction control unit adjusts the polarization direction of display light incident on a projection surface by controlling the polarization direction of the laser light emitted by the emitted-light-intensity control unit.

Abstract: Provided is a display device for a vehicle that can, in a configuration in which the cost of parts is curbed, quickly raise the temperature of a laser light source (LD) in a low temperature environment, and quickly perform stable image output. The LDs (11, 12, 13) emit laser light (RGB) and an MEMS mirror (30) scans the laser light (RGB) and generates a display image (M). A convex mirror (70) reflects display light (L) indicating the display image (M) in an external direction via a translucent light-transmitting unit (90). An LD driving means (101) emits laser light (RGB) to the LDs (11, 12, 13) when the temperature is low, and causes the LDs (11, 12, 13) to perform self-heating driving for raising the temperature of themselves.

Abstract: A scanning-type projection device is provided with an emitted-light-intensity control unit for controlling the light intensity of a laser light emitted by a laser light source unit, a polarization direction control unit for controlling the polarization direction of the laser light, a scanning unit for scanning the laser light and generating a display image, and a divergence unit on which the laser light scanned by the scanning unit is incident. The emitted-light-intensity control unit has a polarization control element for controlling the polarization state of the laser light, and a polarizing plate on which the laser light emitted from the polarization control element is incident, and the polarization direction control unit adjusts the polarization direction of display light incident on a projection surface by controlling the polarization direction of the laser light emitted by the emitted-light-intensity control unit.

Abstract: A color mixing device and a display device are configured to represent the color white in a consistent fashion, even in low-luminance areas. These devices are provided with: a red light source for outputting red light at optical intensity in response to a first current presented thereto; a green light source for outputting green light at optical intensity in response to a second current presented thereto; a blue light source for outputting blue light at optical intensity in response to a third current presented thereto; and a color mixing means for color mixing of the red light, the green light, and the blue light together. A light attenuating part transmits or reflects the blue light, bringing about attenuation and advance thereof in the output direction. The blue light output by the blue light source is attenuated to a greater extent than the light of the other colors during output.

Abstract: In order to enable a display image with stable display colors and display brightness to be obtained quickly even when the optical intensity characteristic of a laser light source changes due to a harsh usage environment, a Dimmer unit is equipped with: a first light detection unit that modulates the light intensity of composite laser light emitted from a composite laser light emission unit, and detects the light intensity of the composite laser light before entering the Dimmer unit; and a second light detection unit that detects the light intensity of the composite laser light after entering the Dimmer unit. The light intensity characteristic for each color in the composite laser light emission unit is calculated on the basis of the light intensity detected by the first light detection unit, and the white balance of each color in the composite laser light emission unit is adjusted on the basis of the light intensity detected by the second light detection unit.

Abstract: Provided is a heads-up display device that stably achieves a low brightness display in which the display does not feel too bright in a dark environment at night, which further does not give a vehicle driver discomfort with continuous changes in brightness, and which has excellent white balance in the entire range of display brightness. A heads-up display device (1) is provided with an external light illuminance detection section (70) that detects the illuminance of external light and adjusts the display brightness (B) for display of images, which are displayed, on the basis of external light illuminance (P) measured by the external light illuminance detection section (70).

Abstract: A head-up display device and a self-checking method therefor are provided, which are able to suppress the direct output of a laser beam to outside. A reflecting means reflects an image generated by a scanning means and projects the image outside of a case, and an angle-adjusting means adjusts the reflecting means to a desired angle. After the ignition switch of the vehicle is turned on, a light-emitting means outputs a scanning laser beam, and the value of the current flowing to the light-emitting means is detected, or a first light intensity, which is the light intensity of the scanning laser beam, is detected. For a period extending at least from the output of the scanning laser beam by the light-emitting means to the establishment of a predetermined condition, the angle-adjusting means is controlled such that the reflecting means is set to a non-visible position at which the scanning laser beam is reflected inside the case.

Abstract: Provided is a display device for a vehicle that can, in a configuration in which the cost of parts is curbed, quickly raise the temperature of a laser light source (LD) in a low temperature environment, and quickly perform stable image output. The LDs (11, 12, 13) emit laser light (RGB) and an MEMS mirror (30) scans the laser light (RGB) and generates a display image (M). A convex mirror (70) reflects display light (L) indicating the display image (M) in an external direction via a translucent light-transmitting unit (90). An LD driving means (101) emits laser light (RGB) to the LDs (11, 12, 13) when the temperature is low, and causes the LDs (11, 12, 13) to perform self-heating driving for raising the temperature of themselves.

Abstract: A head-up display device and a self-checking method therefor are provided, which are able to suppress the direct output of a laser beam to outside. A reflecting means reflects an image generated by a scanning means and projects the image outside of a case, and an angle-adjusting means adjusts the reflecting means to a desired angle. After the ignition switch of the vehicle is turned on, a light-emitting means outputs a scanning laser beam, and the value of the current flowing to the light-emitting means is detected, or a first light intensity, which is the light intensity of the scanning laser beam, is detected. For a period extending at least from the output of the scanning laser beam by the light-emitting means to the establishment of a predetermined condition, the angle-adjusting means is controlled such that the reflecting means is set to a non-visible position at which the scanning laser beam is reflected inside the case.

Abstract: Provided is a heads-up display device that stably achieves a low brightness display in which the display does not feel too bright in a dark environment at night, which further does not give a vehicle driver discomfort with continuous changes in brightness, and which has excellent white balance in the entire range of display brightness. A heads-up display device (1) is provided with an external light illuminance detection section (70) that detects the illuminance of external light and adjusts the display brightness (B) for display of images, which are displayed, on the basis of external light illuminance (P) measured by the external light illuminance detection section (70).

Abstract: A display device capable of obtaining stable light output even in a state of low brightness and capable of displaying desired display colors is provided. An output control means (80) causes image-forming light to be emitted from a laser source (10) on the basis of image information when the scanning position of an RGB laser beam according to a scanning means is within a display range (20), and causes detection light to be emitted from the laser source (10) when the scanning position is outside the display range.