Abstract: An display apparatus, for a vehicle, according to one embodiment includes a substrate housing portion, an optical unit, a turning member, and a plate-like attachment plate. The substrate housing portion contains a circuit substrate for outputting an image signal of an image to be displaced. The optical unit generates an image based on the image signal outputted from the circuit substrate and projects the generated image. The combiner is provided at one end of the optical unit, and the image is projected onto the combiner. The turning member connects the optical unit to the substrate housing portion in a freely rotatable manner. The plate-like attachment plate is used to mount the substrate housing portion to a rear-view mirror such that the optical unit is freely rotatable without coming into contact with the rear-view mirror inside a vehicle.

Abstract: A beam, expansion unit is configured to expand a beam of laser light emitted from a laser light source into an ellipse. A beam irradiation position moving unit is configured to translate a mirror by a driving unit to sequentially move the laser light expanded into the ellipse on the surface of an integrator in a minor-axis direction of the ellipse. A reflective liquid crystal device is configured to modulate the laser light. A projection lens is configured to project the laser light modulated by the reflective liquid crystal device.

Abstract: An image display device includes: an image generation unit that generates image display light based on an image signal; a projection unit that projects the image display light generated by the image generation unit; a combiner that presents the image display light projected by the projection unit as a virtual image; and a rotating unit that rotationally moves the combiner along at least one rotation surface, wherein the projection unit changes a direction in which the image display light is projected based on the rotational movement of the combiner.

Abstract: An integrator includes a plurality of rectangular lens cells arranged in a direction x and a direction y. Laser light emitted from a laser source is projected onto an integrator. A beam irradiation position moving unit is configured to cause the laser light to scan the surface of the integrator in the directions x and y so that the laser light is sequentially projected onto a plurality of lens cells. A reflective liquid crystal device is configured to modulate the laser light emitted from the integrator. A projection lens is configured to project the laser light modulated by the reflective liquid crystal device.

Abstract: An display apparatus, for a vehicle, according to one embodiment includes a substrate housing portion, an optical unit, a turning member, and a plate-like attachment plate. The substrate housing portion contains a circuit substrate for outputting an image signal of an image to be displaced. The optical unit generates an image based on the image signal outputted from the circuit substrate and projects the generated image. The combiner is provided at one end of the optical unit, and the image is projected onto the combiner. The turning member connects the optical unit to the substrate housing portion in a freely rotatable manner. The plate-like attachment plate is used to mount the substrate housing portion to a rear-view mirror such that the optical unit is freely rotatable without coming into contact with the rear-view mirror inside a vehicle.

Abstract: A display device for a vehicle includes: a substrate housing portion that stores a circuit substrate that outputs an image signal of an image to be displayed; an optical unit that generates and projects an image based on the image signal; and a combiner on which the image is projected, wherein the optical unit has: an optical unit main body that includes a light source and an image display element; and a projection unit that determines a projection direction, wherein the optical unit main body has a first main body surface and a second main body surface, and wherein the projection unit has two arrangement states: a first state where a projection port of the projection unit is on the side of the first main body surface; and a second state where the projection port is on the side of the second main body surface.

Abstract: An image display device includes: an image generation unit that generates image display light based on an image signal; a projection unit that projects the image display light generated by the image generation unit; a combiner that presents the image display light projected by the projection unit as a virtual image; and a rotating unit that rotationally moves the combiner along at least one rotation surface, wherein the projection unit changes a direction in which the image display light is projected based on the rotational movement of the combiner.

Abstract: An integrator includes a plurality of rectangular lens cells arranged in a direction x and a direction y. Laser light emitted from a laser source is projected onto an integrator. A beam irradiation position moving unit is configured to cause the laser light to scan the surface of the integrator in the directions x and y so that the laser light is sequentially projected onto a plurality of lens cells. A reflective liquid crystal device is configured to modulate the laser light emitted from the integrator. A projection lens is configured to project the laser light modulated by the reflective liquid crystal device.

Abstract: A beam, expansion unit is configured to expand a beam of laser light emitted from a laser light source into an ellipse. A beam irradiation position moving unit is configured to translate a mirror by a driving unit to sequentially move the laser light expanded into the ellipse on the surface of an integrator in a minor-axis direction of the ellipse. A reflective liquid crystal device is configured to modulate the laser light. A projection lens is configured to project the laser light modulated by the reflective liquid crystal device.

Abstract: A first linearly polarized bundle of rays of incident rays is converted by optical modulation with an input video signal into a second linearly polarized bundle of rays orthogonal to the first rays in polarization. The first rays pass through a polarizer before optically modulated. A second linearly polarized bundle of rays originally involved in the incident rays is reflected by the polarizer in a first direction. The second rays obtained by the optical modulation are reflected by the polarizer in a second direction. The second rays reflected in the second direction pass through another polarizer. A first linearly polarized bundle of rays involved in the reflected second rays is reflected by the other polarizer. The reflected first rays is detected by an optical sensor that is positioned outside an optical path of the second rays originally involved in the incident rays and reflected in the first direction.

Abstract: A light source device includes excitation light sources integrated into a module and each emitting excitation light. A beam splitter optical system splits the excitation light from the excitation light sources into first, second, and third portions. A first fluorescent member emits red light in response to the first portion of the excitation light through fluorescence. A second fluorescent member emits green light in response to the second portion of the excitation light through fluorescence. A third fluorescent member emits blue light in response to the third portion of the excitation light through fluorescence. A combining optical system combines the red light, the green light, and the blue light.

Abstract: A first linearly polarized bundle of rays of incident rays is converted by optical modulation with an input video signal into a second linearly polarized bundle of rays orthogonal to the first rays in polarization. The first rays pass through a polarizer before optically modulated. A second linearly polarized bundle of rays originally involved in the incident rays is reflected by the polarizer in a first direction. The second rays obtained by the optical modulation are reflected by the polarizer in a second direction. The second rays reflected in the second direction pass through another polarizer. A first linearly polarized bundle of rays involved in the reflected second rays is reflected by the other polarizer. The reflected first rays is detected by an optical sensor that is positioned outside an optical path of the second rays originally involved in the incident rays and reflected in the first direction.