Abstract: An optical device including a bearing structure and a light-transmitting plate body is provided. The bearing structure includes a first frame body and a second frame body connected to each other, and the first frame body is located in the second frame body. The first frame body has at least one first inner surface, and the at least one first inner surface has at least one limiting protruding portion protruding from the at least one first inner surface. The light-transmitting plate body is disposed in the first frame body and is fixed to the first frame body. The light-transmitting plate body has at least one first edge, and the at least one first edge of the light-transmitting plate body is positioned through the at least one limiting protruding portion.

Abstract: The purpose of the present invention is to provide a head-up display having enhanced evenness of display image luminance. This head-up display is provided with: a backlight unit having a light source, the backlight unit emitting illumination light; a liquid crystal display element for displaying an image, the image being irradiated by the illumination light, whereby the liquid crystal display element emits display light; a control means for controlling the illuminance of the backlight unit and display by the liquid crystal display element; a housing having an opening through which the display light passes, the housing housing the liquid crystal display element and the backlight unit; and a cover glass for reflecting and/or transmitting in at least one location in a display light path and projecting the reflected and/or transmitted display light.

Abstract: A wavelength conversion device includes a rotating device, a substrate rotated by the rotating device, a wavelength conversion element, and a first cooling device including, on an inside, a space in which working fluid is encapsulated, the first cooling device cooling the wavelength conversion element. The first cooling device is disposed in a position corresponding to the wavelength conversion element. The space extends from an outer edge side of the substrate to a rotation axis side. The first cooling device includes an evaporator and a condenser which are provided in the space. The evaporator includes a liquid retaining part configured to retain the working fluid in a liquid phase. The liquid retaining part is provided at the outer edge side in the space and disposed in the position corresponding to the wavelength conversion element.

Abstract: A light source module configured to provide an illumination light beam is provided. The light source module includes first, second, third and fourth light source components and a heat sink structure. The first light source component emits red light. The second light source component emits first green light. The third light source component emits first blue light. The fourth light source component emits second blue light towards the second light source component. The second light source component converts the second blue light into second green light. The illumination light beam includes the red light, the first green light, the first blue light, and the second green light. The heat sink structure is connected to the first light source component and is connected to one of the second light source component and the fourth light source component. In addition, a projector having the light source module is also provided.

Abstract: Provided are a vehicle-mounted display device and a display system. The vehicle-mounted display device includes: an image source, a light reflection module, and an image size adjustment module which are located on a light path; wherein the image source is configured to emit image light to the light reflection module according to an image to be displayed; the light reflection module reflects the image light at least twice, and emits same to the image size adjustment module; and the image size adjustment module is configured to adjust and emit the image light incident thereon.

Abstract: The present disclosure relates to a projector including a light source apparatus that outputs a light ray flux containing fluorescence, a bandpass filter provided at least in part of an optical path of the fluorescence, an integrator unit on which the light ray flux is incident and which divides the light ray flux into a plurality of partial light ray fluxes, a superimposing lens that is provided on the downstream of the integrator unit and causes the plurality of partial light ray fluxes to be incident in different positions, a light modulator including a plurality of pixels, a microlens array including a plurality of microlenses corresponding to the plurality of pixels, and a projection optical apparatus that projects light outputted from the light modulator.

Abstract: An optical element has a first member having a first refractive index and a second member having a second refractive index different from the first refractive index. The optical element has a first transmissive surface, a reflective surface, and a second transmissive surface arranged from a demagnifying side toward a magnifying side in order. The first transmissive surface and the reflective surface are located in one side with respect to an optical axis of the optical element. The second transmissive surface is located in the other side with respect to the optical axis of the optical element. the reflective surface has a concave shape.

Abstract: Embodiments of the disclosure provide a projector including a housing, a light source module, a light engine module, a projection lens module, and a thermal module. An airflow is formed in the housing. The thermal module is disposed in the housing and includes a base and a plurality of fins. The housing has a space for accommodating the thermal module, and a dimension of the space is L. An average velocity of the airflow before entering the plurality of fins is V, and a pitch between adjacent fins of the plurality of fins is P, and a reference value Y=[2.9*(V+1)*(P?2.3)?2+2.4*(V?3.308)?2+15.82], and when L is greater than or equal to Y, the thermal module is a three-dimensional vapor chamber thermal module or a tower thermal module.

Abstract: A projector includes a first light source, a second light source, a collimating lens, a wavelength conversion module and a dichroic mirror. The first light source and the second light source respectively emit a first illumination beam and a second illumination beam. The collimating lens includes a first part and a second part and configured to receive and transmit the first illumination beam. The wavelength conversion module receives the first illumination beam from the first part, and generates an excitation beam transmitted toward the first part and the second part. The dichroic mirror corresponds to the first part, and configured to reflect the first illumination beam and the second illumination beam respectively to different directions for projecting the first illumination beam onto the first part and to be passed by the excitation beam.

Abstract: A light source device according to an embodiment of the present disclosure includes: a light source section; a rotating body; a motor; a housing; one or more lens groups; a lens holding section; and an adjusting mechanism. The rotating body includes a fluorescent light body. The fluorescent light body is excited by excitation light from the light source section to output fluorescent light. The motor drives the rotating body. The housing accommodates the rotating body. The one or more lens groups gather the excitation light from the light source section and direct the excitation light toward the rotating body. The lens holding section holds the one or more lens groups. The adjusting mechanism adjusts a distance between the rotating body and the one or more lens groups.

Abstract: Disclosed herein are a plurality of laser sources forming an element. Multiple laser elements are arranged in a pattern to form an array. Each laser element of the array is independently addressable, such that video and other content can be projected from the array.

Abstract: An illuminator of the present disclosure includes a light source unit that emits at least one colored light, and emits, for each of the pieces of colored light, light having a plurality of peak wavelengths different from each other, and a diffraction device that includes a plurality of divided areas, and displays, in each of the divided areas, a diffraction pattern that is optimized at a corresponding peak wavelength out of each of the peak wavelengths. The plurality of divided areas allows the light of the plurality of peak wavelengths to enter the plurality of divided areas individually for each of the pieces of colored light.

Abstract: A light source heat-dissipating device is disposed in a projection apparatus having a casing with an air inlet. The light source heat-dissipating device has a heat-dissipating fin assembly disposed in the casing and having an air intake side, and first and second heat-dissipating fin assemblies, a first air duct, and a fan adjacent to the first and second heat-dissipating fin assemblies. The second heat-dissipating fin assembly is stacked on the first one. The first heat-dissipating fin assembly is between the second one and the air inlet. The first air duct is adjacently-disposed at the air intake side, has a first entrance end connected with the air inlet and a first exit end opposite to the first entrance. The light source heat-dissipating device and projection apparatus improve temperature and life consistency between light source modules. The heat dissipation performances of the first and second heat-dissipating fin assemblies tend to be consistent.

Abstract: A wavelength conversion device includes a driver, a substrate and a support. The support is disposed between the driver and the substrate. The support is connected to the substrate and the driver. The driver drives the support and the substrate to rotate about a central axis. The support includes at least one through hole. The invention also provides a projection device including a light source system, the aforementioned wavelength conversion device, a light valve, and a projection lens.

Abstract: A non-contact operating apparatus, for a vehicle, includes a generating unit, a projecting device, a detecting device, and a setting unit. The generating unit is configured to generate and update an image containing an image object. The image object is operable by an occupant present within a vehicle compartment of the vehicle. The projecting device is configured to project the image in a predetermined display region within the vehicle compartment of the vehicle. The detecting device is configured to detect a riding state of the occupant who is present in the vehicle compartment of the vehicle. The setting unit is configured to instruct the projecting device or the generating unit to project the image at a position at which the image object is operable by the occupant who is in the riding state detected by the detecting device.

Abstract: A dual mode virtual reality (VR) and augmented reality (AR) headset includes a head-attachment, a main frame coupled to the head-attachment, and a pivot frame. The pivot frame includes a holder configured to accommodate an electronic device having a display screen, and a reflective screen configured to reflect content shown on the display screen. The pivot frame pivotally coupled to the main frame. In the first pivot frame position, the reflective screen at least partially intersects a field of view (?) of a user wearing the headset, and in the second pivot frame position the display screen at least partially intersects the ? when the electronic device is accommodated in the holder.

Abstract: A wavelength conversion module and a projection device are provided. The wavelength conversion module includes a substrate, a first matching material layer, a wavelength conversion layer, a second matching material layer, and a filling adhesive channel. The first matching material layer is located on the substrate. The wavelength conversion layer is located between the substrate and the first matching material layer, and the wavelength conversion layer includes a plurality of first holes, a wavelength conversion material, and a bonding material. The wavelength conversion material is dispersed in the bonding material. The second matching material layer is located between the substrate and the wavelength conversion layer. The filling adhesive channel is connected to the first matching material layer and the second matching material layer, and the second matching material layer, the filling adhesive channel, and the first matching material layer have a filling adhesive with the same material.

Abstract: A visual field display device for a motor vehicle includes an electrically controllable, planar pixel arrangement, particularly at least one flat screen monitor, for producing a projection light beam having a display content, a reflection-suppressing deflection arrangement arranged on the planar pixel arrangement, including one or more flat reflection surfaces, extending along the planar pixel arrangement at a predetermined, acute angle thereto and parallel to one another, for projecting the generated projection light beam onto a partially transparent, reflective projection pane, particularly a windshield of the motor vehicle. As a result, a virtual display image, shown in a visual field of a user, is generated behind it. The one or the plurality of reflection surfaces are designed on the rear sides thereof in a light-absorbing manner in order to suppress interfering reflections.

Abstract: The present disclosure provides a mobile terminal and a system for controlling a laser projector. The system includes a first drive circuit, a second drive circuit, a microprocessor coupled to the first drive circuit, and an application processor. The first drive circuit is configured to output an electrical signal to the laser projector. The second drive circuit is configured to supply power to the first drive circuit. The application processor is configured to, read a preset signal from the microprocessor, and power off the second drive circuit to power off the first drive circuit and the laser projector, or send a reset signal for restarting the microprocessor to the microprocessor, in response to that the application processor cannot read the preset signal.

Abstract: A projector is provided that includes a light source configured to radiate light, an electro-optical panel including a pixel circuit configured to receive light from the light source and emit the light, and an optical axis shifting element configured to shift an optical axis of the light emitted from the pixel circuit, with the projector being configured to display a pixel on a projection surface, based on the light emitted from the pixel circuit via the optical axis shifting element. When shifting a position of the pixel on the projection surface from a first position to a second position in a first direction, the optical axis shifting element shifts an optical axis of the light emitted from the pixel circuit using a path different from a shortest path from the first position to the second position.