Abstract: A light source module includes a light source and a first optical element. The light source is configured to emit first and second light beams. The first optical element has a first surface on which the first second light beam are to be incident. The first light beam and the second light beam are incident on the first surface along a first direction such that the first light beam is incident at a first position on the first surface and the second light beam is incident at a second position on the first surface. The first light beam has a first width in a second direction intersecting the first direction on the first surface, and a second width in a third direction intersecting a plane including the first direction and the second direction on the first surface. The first width is greater than the second width. The second light beam has a third width in the second direction on the first surface, and a fourth width in the third direction on the first surface. The third width is greater than the fourth width.

Abstract: A laser projector includes a laser assembly, a beam combination mirror group and a phase delaying component. The laser assembly includes a red laser light emitting region, a blue laser light emitting region and a green laser light emitting region. Red laser light is polarized in a first direction, green laser light is polarized in a second direction, and blue laser light is polarized in a third direction. The beam combination mirror group combines the red laser light, the blue laser light and the green laser light. The phase delaying component is on a light emitting path of at least one of the red laser light, the blue laser light the green laser light, and changes a polarization direction of the at least one of the red laser light, the blue laser light or the green laser light before being output by the beam combination mirror group.

Abstract: A light source unit includes a first device emitting light in a first wavelength range, a luminescent wheel comprising a luminescent light emitting area emitting luminescent light as light in a second wavelength range, a second device emitting light in a third wavelength range distributed on a longer wavelength side than the light in the second wavelength range, a device combining the light in the second and third wavelength ranges to the same light axis, a color wheel comprising a plurality of areas, one of them constituting an area for selecting the light in the third wavelength range and partial light on a long wavelength side of the light in the second wavelength range combined by the combining device as light in a fourth wavelength range, and a control unit controlling the elements described above to time-sharing control the light in the second and fourth wavelength ranges.

Abstract: A portable connected lamp makes it possible to project a pattern. The lamp includes lighting to transmit a light. The lighting includes a transmitter to transmit at least one light beam and a projector arranged to project at least one light pattern. The lamp also includes a receiver to receive control instructions via a wireless connection, the control instructions including data to be projected, and a controller to control the projector so that they project the data received by the receiver.

Abstract: An optical module, including a first frame, a second frames, an optical element, a first driving module, and a second driving module, is provided. The first frame is connected to a base. The second frame is connected to and located in the first frame. The optical element is disposed in the second frame. The first driving module is disposed between the base and the first frame to drive the first frame to oscillate around a first rotating axis. The second driving module is disposed between the first and second frames to drive the second frame to oscillate around a second rotating axis. The first and second rotating axes are perpendicular to an optical axis of the optical element, and not parallel. An overall dimension of the second driving module is less than that of the first driving module. A projection device having the optical module is also provided.

Abstract: A digital light processing projector includes a light machine having a shell. The shell is provided with a first positioning post and a second positioning post. A digital micromirror device is configured with a first positioning hole and a second positioning hole. The first positioning post is located in the first positioning hole. The second positioning post is located in the second positioning hole. The light machine includes a circuit board assembly, a pressing plate, and a first connection assembly for fixed connection with the shell, and fixation of the pressing plate, the circuit board assembly and the digital micromirror device on the shell.

Abstract: Provided are a projector and a lens adjusting module. The projector includes a main body, a light source disposed on the main body and providing an illumination beam, a light valve disposed on the main body and converting the illumination beam into an image beam, a projection lens movably disposed on the main body in a moving direction and projecting the image beam, and the lens adjusting module. The lens adjusting module includes a driven member connected to the projection lens and having a limiting flange, a limiting structure connected to the main body, and a rotating member screwed to the driven member and rotating to drive the driven member and the projection lens to move in a moving direction. The limiting structure is adapted to stop the limiting flange to limit a movement range of the driven member in the moving direction.

Abstract: A light synthesizing device includes first and second light emitting devices, first and second polarization control members, and a synthesis member. Each of the first and second light emitting devices has at least one first semiconductor laser element and at least one second semiconductor laser element, and configured such that a polarization direction of exit light from the first semiconductor laser element is different from a polarization direction of exit light from the second semiconductor laser element. The first and second polarization control members are respectively configured to change the polarization directions of the exit lights from the first semiconductor laser element of the first light emitting device and the second semiconductor laser element of the second light emitting device. The synthesis member is configured to combine light exited from the first light emitting device and light exited from the second light emitting device.

Abstract: Provided is a head-up display having excellent handling properties. This head-up display is provided with a display panel, a substrate including a light source which illuminates the display panel from a rear surface thereof, a heat sink which dissipates heat transferred from the substrate, and a case which accommodates the heat sink. The case includes an opening exposing at least a portion of the heat sink, and a protecting wall which has a larger amount of protrusion than the amount of protrusion of the heat sink protruding from the opening, and which protects the heat sink protruding from the opening.

Abstract: A stereoscopic image display apparatus that is capable of being efficiently aligned using a remotely controlled alignment function and a method of displaying a stereoscopic image using the same are disclosed.

Abstract: A light source device comprises: an excitation light source configured to generate excitation light; a wavelength conversion member including a base and a phosphor layer which is provided on the base and configured to convert the excitation light into fluorescence; and a converging optical system including a converging lens for converging the excitation light on the phosphor layer, wherein the light source device further comprises a housing for accommodating the wavelength conversion member, the excitation light source is provided outside the housing, a wall surface of the housing includes a lens hole into which the converging lens is inserted, and the converging lens which is inserted into the lens hole and the wall surface of the housing isolate an internal space of the housing from an outer space of the housing.

Abstract: A lens includes a casing, a first lens group, a second lens group and a heat dissipating member. The first lens group is disposed in the casing and close to a first side of the casing. The second lens group is disposed in the casing and close to a second side of the casing, wherein the first side is opposite to the second side. The heat dissipating member is disposed at the second side of the casing and contacts the casing.

Abstract: An illumination system comprises a blue light source, an excitation light source, a first dichroic element and a wavelength converting element. The blue light source provides a blue light beam. An excitation light source provides an excitation beam. The first dichroic element is disposed on transmitting paths of the blue light beam and the excitation beam. The wavelength converting element is disposed on a transmitting path of the excitation beam and adapted to convert the excitation beam into an excited beam. The excitation beam passes through the first dichroic element to the wavelength converting element and converted into the excited beam. The excited beam is transmitted to the first dichroic element and reflected. A wavelength of the blue light beam is greater than a wavelength of the excitation beam, and the blue light source and the excitation light source are disposed on the same side of the first dichroic element.

Abstract: The invention discloses a novel projector, comprising a sealed shell of electronic projector, an illumination system and a LED light source system, wherein the sealed shell is provided with an optical and internal circulation cooling assembly inside by area; the optical assembly comprises the projector working assembly. The invention is inside a sealed shell; the cold air far below normal temperature generated by semiconductor refrigeration piece takes away the heat on optical device, improving the heat dissipation efficiency. Simultaneously, because the cold air is inside a sealed shell, the optical device can be placed in a dust-free environment. The polarized light conversion prism converts the useless P light in conventional projector imagining into the useful S light, improving the light utilization, and increasing the brightness of projection at the same power. The LED light source is collimated by the collimating lens to meet PCS conversion requirement for polarized light converter.

Abstract: A light source device includes a wavelength conversion member including a phosphor, and for converting excitation light into first light, a first light source section for emitting the excitation light, a second light source section for emitting second light, and a color combining element for generating composite light. The wavelength conversion member has first and second end surfaces, and a side surface. The excitation light enters the wavelength conversion member from the side surface, and the first light is emitted from the first end surface. The color combining element has first and second surfaces parallel to each other, and a third surface. The first light emitted from the wavelength conversion member enters the color combining element from the first surface, the second light emitted from the second light source section enters the color combining element from the third surface, and the composite light is emitted from the second surface.

Abstract: Various embodiments described herein relates to a lens cap, adapted to be mechanically engaged over a lens assembly of an optical projector. The lens cap, as described herein, is adapted for vignetting a light pattern projected by the optical projector. The lens cap includes a front surface and a back surface, where on at least a portion of the front surface, an elliptically shaped aperture is defined. In this aspect, the elliptically shaped aperture is chamfered towards its peripheral ends, as the elliptically shaped aperture extends out from the back surface of the lens cap towards the front surface of lens cap. Also, the elliptically shaped aperture is defined on the lens cap such that, a center axis of the aperture is offset to a central axis of the lens cap, so as to match an offset at which the light pattern is projected by the optical projector.

Abstract: A projector having a cooling target includes a light source configured to emit light, a light modulator configured to modulate the light emitted from the light source, a projection optical device, a cooler configured to cool the cooling target based on transformation of a refrigerant into a gas, and a dust-proof case configured to house at least a part of the cooling target inside. The cooler includes a refrigerant generator configured to generate the refrigerant, and a refrigerant sender configured to transmit the generated refrigerant toward the cooling target. The cooling target includes a cooling target main body part, and a cooling target part which is thermally coupled to the cooling target main body part, and to which the refrigerant is transmitted from the refrigerant sender. The cooling target main body part is disposed inside the dust-proof case. The cooling target part is disposed outside the dust-proof case.

Abstract: The invention provides a projection device which includes a rotating module and an imaging module. The rotating module is assembled on a mounting surface and includes a rotating part and an assembling part which are integrally formed. The rotating part is parallel to the mounting surface, and the assembling part is perpendicular to the mounting surface. The imaging module is assembled on the assembling part of the rotating module. When the rotating module rotates by taking an axis perpendicular to the mounting surface as an axial center, the rotating module drives the imaging module to rotate so as to change a projection direction of the imaging module. The projection device of the invention adjusts the projection direction without using a tool.

Abstract: A light source system includes an excitation light source, a fluorescent plate that emits fluorescence when exposed to the excitation light from the excitation light source, and a compartment storing the fluorescent plate. The compartment has a heat-receiving section and a heat-dissipation section thermally connected to each other. The heat-receiving section is located opposite a fluorescence light output side of the fluorescent plate, in the compartment. The heat-dissipation section is outside the compartment.

Abstract: [Object] To implement a light source apparatus that is high in efficiency and has favorable color reproducibility. [Solution] There is provided a light source apparatus including: a light source configured to output light in a first wavelength region; and a wavelength conversion member including a first fluorescent substance and a second fluorescent substance, the first fluorescent substance being excited by the light in the first wavelength region to emit light in a second wavelength region, the second fluorescent substance being stacked on the first fluorescent substance and excited by the light in the first wavelength region and the light in the second wavelength region to emit light in a third wavelength region.