Abstract: Disclosed is a projector (1), comprising a projector body (10) with a lens (12), and a light reflection assembly (20) for adjusting a projecting direction of the lens (12). The light reflection assembly (20) comprises a reflective mirror (23), and the light reflection assembly (20) is provided to be rotatably connected with the projector body (10). During the rotation, a mirror face of the reflective mirror (23) always faces towards the lens (12), so that the reflective mirror (23) adjusts the angle of the projecting direction between the mirror face and the lens (12) with the rotation of the light reflection assembly (20), so as to adjust the projecting location of the lens (12) by means of the rotation of the reflective mirror (23), such that the projecting direction can be changed without moving the projector (1).

Abstract: Disclosed are a wavelength conversion device, a light-emitting device and a projection system, comprising a wavelength conversion layer having a first surface and a second surface opposite each other. The first surface receives an excitation light. The wavelength conversion layer absorbs the excitation to produce a converted light and emits the converted light or the mixture of the converted light and the excitation light from the first surface and the second surface. A scattering reflective substrate is stacked with the wavelength conversion layer and includes a white porous ceramic or a white scattering material for scattering the incident light. The scattering reflective substrate includes a third surface facing the second surface and scatters at least a part of the incident light on the third surface and then emits all the light from the third surface to the second surface.

Abstract: A light-emitting device and a projection system, comprising: a laser array light source which comprises a non-light-emitting region and a light-emitting region consisting of a plurality of laser elements; a reflective light-condensing system which comprises a light-condensing region and a non-light-condensing region, wherein the light-condensing region is used for focusing and reflecting emergent light of the laser array light source; and a light-collecting system used for collecting and emitting the emergent light from the reflective light-condensing system. The light-collecting system, the non-light-emitting region and the non-light-condensing region are located in the same straight line parallel to a light axis of the emergent light of the laser array light source, and the light-collecting system passes through the non-light-emitting region and/or the non-light-condensing region. The light-emitting device and the projection system have small volumes and can emit high-brightness and uniform faculae.

Abstract: A light source system comprises: a light-emitting device for emitting a first light and a second light in sequence; a beam splitting system with which the first light is divided into one beam in a first range of wavelength and the other beam in a second range of wavelength, respectively emitted along a first optical path and a second optical path, and also with which at least a part of the second light is emitted along the first optical path; a first spatial light modulator for modulating the beam emitted from the beam splitting system along the first optical path; a second spatial light modulator for modulating the beam emitted from the beam splitting system along the second optical path. The light source system has the advantages of high light-emitting efficiency and low cost. A projection system comprising the aforementioned light source system is also provided.

Abstract: A light emitting device includes a light source module comprising an excitation light source for emitting exciting light and a compensation light source for emitting compensation light; and a color wheel component, comprising at least one segmented region distributed in a motion direction of the color wheel component. The color wheel component emits the compensation light and first light that comprises at least one beam of excited light under irradiation of the excitation light source and the compensation light source. The compensation light spectrally overlaps the at least one beam of excited light in the first light, and the compensation light and the excited light spectrally overlapping the compensation light are simultaneously emitted and are independently adjustable. A projection system comprising a light emitting device is further provided.

Abstract: A projection system includes a light source system for generating a first light beam in a first timing sequence and for generating a second light beam in a second timing sequence, the first light beam comprising a first light and a first compensation light, and the second light beam comprising a second light or comprising the second light and a first compensation light. A light splitting device sequentially divides the first light beam and the second light beam into a light transmitting along a first light path and a light transmitting along a second light path. A first light modulating device modulates the light travelling along the first light path, and a second light modulating device modulates the light travelling along the second light path. The first light or the second light is compensated by the first compensation light to have a wider color gamut of a synthesized color image.

Abstract: The invention provides a digital micromirror device control apparatus and a projection display system. The digital micromirror device control apparatus includes a video decoding circuit configured to decode received video data, thereby obtaining component data signals of a plurality of colors; a digital micromirror device driving circuit including a first sub-driving circuit and a second sub-driving circuit. An input end of the first sub-driving circuit is connected to the video decoding circuit, an output end of the first sub-driving circuit is connected to the first digital micromirror device, an input end of the second sub-driving circuit is connected to the video decoding circuit, and an output end of the second sub-driving circuit is connected to a second digital micromirror device. The first sub-driving circuit and the second sub-driving circuit are configured to process component data signals of at least three of the plurality of colors.

Abstract: A light-emitting device (1) and a related light source system. The light-emitting device (1) comprises a laser light source (11, 21, 31) and a light collecting system (12, 22). The laser light source (11, 21, 31) comprises a first laser array (111, 211, 311) and a second laser array (112, 212, 312) for respectively generating a first light and a second light with different wavelength ranges. The light collecting system (12, 22) is used for collecting the light emitted from the laser light source arrays. The ratio of the divergence angle of the collected second light to that of the first light is less than or equal to a predetermined value. The predetermined value is 0.7. The light-emitting device (1) is capable of generating two kinds of light beams with different etendues.

Abstract: Disclosed is a manufacturing method for a wavelength conversion device, comprising: preparing a plurality of wavelength conversion modules, each wavelength conversion module comprising a ceramic substrate, a reflecting layer and a fluorescent powder layer, said layers being stacked sequentially and formed into one piece; installing and fixing the plurality of wavelength conversion modules on one surface of a base substrate. By arranging different fluorescent powders respectively on the different wavelength conversion modules, a plurality of wavelength conversion modules can be produced separately at the same time, thereby significantly shortening the production cycle. Each such module is produced independently and is thus not subject to the restrictions of the characteristics of other fluorescent powders. This is beneficial for the optimization of the various processes, and a wavelength conversion device having optimal performance is thereby obtained.

Abstract: A light source system includes an excitation light source emitting excitation light in at least first and second time intervals; a compensation light source emitting compensation light in at least third time intervals, the compensation light including laser light of at least one color; and a rotating color wheel, including at least first and second regions, the first region generating light of at least two different colors in time sequence under irradiation of the excitation light in the first and second time sequences, and the second region transmitting the compensation light in at least the third time sequence. The light of the at least two different colors includes at least one type of wide-spectrum fluorescence, and the laser compensates for the fluorescence or light split from the fluorescence. The compensation light is directly transmitted without being irradiated upon fluorescent powder, so scattering loss of the compensation light is reduced.

Abstract: Provided is a projection device, comprising a light-emitting apparatus, a spatial light modulator, a pixel shifting apparatus, a projection lens, and a control processor; the light-emitting apparatus comprises an excitation light source, a colored-light generating apparatus, and a drive apparatus; the control processor is separately connected to the drive apparatus, the light source, the spatial light modulator, and the pixel shifting apparatus, and is used for: controlling the frequency of periodic motion of the drive apparatus; while the drive apparatus moves the conversion area of the colored-light generating apparatus to pass across the position illuminated by the excitation light, shutting off the light source or controlling the spatial light modulator to enter a non-projecting state. No light passes through the pixel shifting apparatus when it is changing states, thus it is prevented from affecting the contrast. Also provided are a projection control system and a projection control method.

Abstract: A color wheel assembly includes a color wheel fixed in a housing and a detecting apparatus for generating a synchronization signal. The color wheel is driven to rotate and has a marking object rotating with it. The housing has a first surface parallel to and adjacent a surface of the color wheel where the marking object is located. The first surface of the housing has a first through hole at a location within an annular region corresponding to the marking object when the color wheel rotates by one revolution. The detecting apparatus is disposed on the back side of the first through hole and a probe head of the detecting apparatus is disposed in the first through hole for detecting the marking object on the color wheel. The structure insulates the probe head from heat emitted from the color wheel. A related light source system is also disclosed.

Abstract: A TEC heat dissipation assembly includes a TEC refrigeration module, which includes a TEC refrigeration chip, a mounting plate for mounting the TEC refrigeration chip, a water cooled plate located on one side of a heat generating surface of the TEC refrigeration chip for cooling the TEC refrigeration chip, and a cover plate for covering the TEC refrigeration module and a heat source substrate. A hollowed open window which is matched with the TEC refrigeration chip in appearance and used for allowing the heat generating surface of the TEC refrigeration chip to be in contact with the water cooled plate via the mounting plate is disposed on the surface of the mounting plate. A refrigeration surface of the TEC refrigeration chip is close to the heat source substrate at the other side of the hollowed open window. Also provided is a projection device employing the TEC heat dissipation assembly.

Abstract: A light source system and a projection system, comprising a light source; a switching system switching light emitted by the light source into at least two light beams having a preset proportion in the manner of time division or light intensity division; a color wheel assembly located in a transmission light path of each light beam of the at least two light beams, with the color wheel assembly generating light having different colors and a preset proportion under the irradiation of each light beam of the at least two light beams, and light of different colors being able to synthesize a projection image after being modulated by a light modulation system, wherein the switching system can adjust the proportion of the at least two light beams according to the parameters of the projection image, so as to adjust the proportion of the light of different colors.

Abstract: A light source system and projection system, the light source system comprising: a first light source (1) producing first wide spectrum light, a second light source (103) producing second wavelength light, a light splitting and light combining device (2) used to split and combine light, a first spatial light modulator (106), a second spatial light modulator (107), and a control device (108) controlling the first light source (1) and the second light source (103) and modulating the first spatial light modulator (106) and the second spatial light modulator (107). The projection system comprises the light source system. The light source system and projection system have high brightness and wide color gamut, effectively eliminating rainbow effect, and also have a simple structure and low cost.

Abstract: A light guide component and a light source device. The light guide component comprises a reflecting plate (131) having an aperture and a transflective coated plate (132). The reflecting plate (131) reflect light. The aperture allows light to pass through. The transflective coated plate (132) is connected to the reflecting plate (131) and covers the aperture, and transmits an excitation light and reflects light of a color different from that of the excitation light.

Abstract: Disclosed are a light source system and a laser light source (300). The laser light source includes two groups of laser groups (20a, 20b), wherein at least one group of laser groups includes at least two lasers (21a, 21b, 21c, 21d), and the light beams (L1) generated by the two groups of laser groups are in the same direction and parallel to each other. The first projections of the two groups of laser groups on the cross section of the light beams formed by the respective emergent light rays thereof are partially overlapped with the second projections in a first direction, which first direction is the connection direction of at least two laser centres of a group of laser groups. The laser light source has the effects of being able to effectively increase the light power density and at the same time reduce the volume of the light source.

Abstract: A light source system comprises: a light-emitting device for emitting a first light and a second light in sequence; a beam splitting system with which the first light is divided into one beam in a first range of wavelength and the other beam in a second range of wavelength, respectively emitted along a first optical path and a second optical path, and also with which at least a part of the second light is emitted along the first optical path; a first spatial light modulator for modulating the beam emitted from the beam splitting system along the first optical path; a second spatial light modulator for modulating the beam emitted from the beam splitting system along the second optical path. The light source system has the advantages of high light-emitting efficiency and low cost. A projection system comprising the aforementioned light source system is also provided.

Abstract: Provided is a projection system, a light source system, and a light source assembly. The light source system (100) comprises an excitation light source (101), a wavelength conversion device (106), a color filtering device (107), a drive device (108), and a first optical assembly. The wavelength conversion device (106) comprises at least one wavelength conversion region. The optical filtering device (107) is fixed face-to-face with the wavelength conversion device (106), and comprises at least a first optical filtering region. The drive device (108) drives the wavelength conversion device (106) and the optical filtering device (107), allowing the wavelength conversion region and the first optical filtering region to act synchronously, and the wavelength conversion region is periodically set on the propagation path of the excitation light, thereby converting the excitation light wavelength into converted light.

Abstract: A light source system and a projection system, comprising: a first laser array (10) for generating red laser; a second laser array (20) for generating blue laser; a beam-splitting diaphragm (60) located in a light path of the first laser array (10) and the second laser array (20), for directing at least a part of the red laser and at least a part of the blue laser to a wavelength conversion device (80); the beam-splitting diaphragm (60) also being used for directing at least a part of the blue laser to an astigmatism device (90); the wavelength conversion device (80) being provided with a wavelength conversion material for receiving the blue laser and producing stimulated light, and for receiving and scattering the red laser to form first red light; the astigmatism device (90) being provided with a scattering material for scattering the blue laser to form blue light; and a light synthesis device for forming synthetic light from the stimulated light, the first red light and the blue light.