Abstract: A multi-projection system includes a plurality of projectors and combines projection images of the plurality of projectors with each other to thereby display an image including an item selection image used to select an item to be adjusted from a plurality of adjustment items on a projection surface, a first projector as one of the plurality of projectors including a receiving section configured to receive an instruction related to an adjustment of the multi-projection system, and a condition control section configured to make a condition of the adjustment item in the item selection image different between a first case where the instruction represents a first adjustment of adjusting the plurality of projectors in a lump and a second case where the instruction represents a second adjustment of individually adjusting the plurality of projectors.

Abstract: An object is to provide a technology for correcting color of a projected video more suitably. In order to solve the above-described object, a configuration includes a video projector configured to display a plurality of colors in time division and project a video to be displayed, and a color corrector configured to perform color correction on a projected video from the video projector. In the configuration, the projected video projected by the video projector is imaged by an internal imaging apparatus or an external imaging apparatus connected by wire or wireless connection, and the color corrector performs the color correction on the basis of a video corresponding to time division one period of the projected video detected from the imaged image or color information of the video corresponding to N times period of time division one period.

Abstract: A light source device of the present disclosure includes a plurality of light source sections, each light source section having at least one light source and the light source sections emitting light beams of mutually different colors, at least one light source substrate mounted with at least one light source section among the plurality of light source sections, and an optical-path combining optical system that combines optical paths of light beams emitted from the respective light source sections, in which the at least one light source section mounted on the light source substrate includes a plurality of the light sources that emits light beams of an identical color.

Abstract: The invention relates to methods for communicating within a communication system when re-configured from a source to a target uplink/downlink configuration. The invention is also providing mobile station for performing these methods, and computer readable media the instructions of which cause the mobile station to perform the methods described herein. Specifically, the invention suggests to perform PUSCH transmissions in response to Downlink Control Information, DCI, transmissions such that the source uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received up to and including subframe N?6, a predefined uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received during subframes N?5 to N?1; and the target uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received from subframe N onward.

Abstract: A light source apparatus includes a first light source, a second light source configured to emit light with a different wavelength than that of the first light source; and a controller for controlling each of the first and second light sources. The controller provides a control such that the second light source takes a longer time from a lighting start to a lighting completion than the first light source, and the second light source starts lighting earlier than the first light source.

Abstract: A light source device includes a light source accommodating section provided with a story structure including a first accommodation story and a second accommodation story, a red light source that emits red laser light and a blue light source that emits blue laser light being accommodated in the first accommodation story, and a green light source that emits green fluorescence being accommodated in the second accommodation story; an emission window provided on a side of the second accommodation story; a first light synthesizer that synthesizes an optical path of the red laser light from the red light source and an optical path of the blue laser light from the blue light source into one optical path, and that emits first synthesized light into which the red laser light and the blue laser light are synthesized; and a second light synthesizer that synthesizes an optical path of the green fluorescence.

Abstract: There is provided an illumination device comprising: a laser; a waveguide comprising at least first and second transparent lamina; a first grating device for coupling light from the laser into a TIR path in the waveguide; a second grating device for coupling light from the TIR path out of the waveguide; and a third grating device for applying a variation of at least one of beam deflection, phase retardation or polarization rotation across the wavefronts of the TIR light. The first second and third grating devices are each sandwiched by transparent lamina.

Abstract: The image display apparatus generates a driving control signal for generating image light on the basis of an image signal, and allows an image projector to generate the image light to form a pixel on a screen in accordance with a modulation timing by performing modulation driving for a light source, and to generate the image light so as to scan the screen while a light emission direction of the image light changes by performing scan driving, allows a gaze-direction detector to detect a gaze direction of a user, and allows a projection-direction driver to change a projection direction of the image light in accordance with the gaze direction. In the first mode, the image display apparatus controls modulation driving and scan driving so that a configuration of a pixel region on the screen changes from a relatively high pixel density region to a relatively low pixel density region.

Abstract: An optical module according to the present disclosure includes a cross dichroic prism, a first display panel, a second display panel, a third display panel, a first adhesive layer configured to bond the first display panel to the cross dichroic prism, a second adhesive layer configured to bond the second display panel to the cross dichroic prism, and a third adhesive layer configured to bond the third display panel to the cross dichroic prism. At least one of the first adhesive layer, the second adhesive layer, and the third adhesive layer includes a spacer member.

Abstract: An illumination system, a projection apparatus, and a projection method of the projection apparatus are provided. The illumination system includes an excitation light source, a light combination element, a reflection element, a light wavelength conversion module, and an actuator. The reflection element is disposed on a transmission path of an excitation beam transmitted from the light combination element. The light wavelength conversion module having at least one reflection area and at least one light conversion area is disposed on a transmission path of an excitation beam transmitted from the reflection element. The actuator is coupled to the light wavelength conversion module to shift the light wavelength conversion module relative to the transmission path of the excitation beam transmitted from the reflection element, such that the at least one reflection area and the at least one light conversion area move to the transmission path of the excitation beam transmitted from the reflection element in turns.

Abstract: A 3D image processing method includes: capturing, by a camera device, a first image with a first camera and a second image with a second camera; transmitting, by the camera device, the first image to an electronic device; transmitting, by the camera device, one or more object images in the second image to the electronic device based on a depth information of the second image; and rebuilding, by the electronic device, a third image by combining the one or more object images and the first image.

Abstract: A light emitting device includes a light emitting element including a first base member, and a stacked body provided to the first base member, and a second base member provided with the light emitting element, the stacked body includes a first columnar section having a first height, and a second columnar section having a second height smaller than the first height, the first columnar section and the second base member are electrically connected to each other via a first conductive member between the stacked body and the second base member, the second columnar section and the second base member are electrically connected to each other via a second conductive member between the stacked body and the second base member, the first conductive member has a third height, and the second conductive member has a fourth height larger than the third height.

Abstract: The present disclosure relates to a wavelength conversion device, a light source and a projection device. A light conversion region and a light path conversion region are provided on one surface of the wavelength conversion device. The light path conversion region includes a first segment and a second segment. The first segment and the second segment are configured to alternately receive excitation light and respectively guide the excitation light to different preset light paths. The light conversion region is provided with a wavelength conversion material for receiving excitation light emitted from one of the segments, converting the received excitation light into excited light that has at least one wavelength range different from a wavelength of the excitation light, and emitting the excited light.

Abstract: Provided are an optical unit and a display device being able to inhibit unwanted light, which is generated when a dichroic mirror transmits part of color light to be reflected, from being emitted from an emission surface of a dichroic prism. In the optical unit, color filters (a first color filter, a second color filter, and a third color filter) are provided between a dichroic prism and a first panel, a second panel, and a third panel, the color filters selectively transmitting light of wavelengths incident on the dichroic prism from each of the panels. Further, an optical resonator, which has a resonance wavelength corresponding to a wavelength range of image light incident on the dichroic prism from each of the panels, is provided on the first panel, the second panel, and the third panel.

Abstract: The light source system includes a first light source, a light splitting device, a wavelength conversion device, and a light guiding device. The first light source emits first light. The wavelength conversion device includes at least a first color light region and a second color light region, which are sequentially inserted into an outgoing path of the first light. The first color light region emits second light excited by the first light to the light splitting device. The second color light region reflects the first light to the light splitting device. The light splitting device directs one of the first light and the second light to a light path and directs the other to the light guiding device. The first light or the second light is reflected by the light guiding device to the light splitting device, and then is guided to the light path by the light splitting device.

Abstract: A light source according to the present invention includes an excitation light source configured to emit excitation light, and a luminescent wheel including a base material, a fluorescent light emitting zone formed on one surface of the base material and configured to emit fluorescent light having a wavelength in a wavelength range which differs from that of the excitation light and a reflection zone disposed so as to be aligned with the fluorescent light emitting zone on the one side surface of the base material and configured to reflect the excitation light, and a shining position of the excitation light on the fluorescent light emitting zone and a shining position of the excitation light on the reflection zone differ from each other in relation to a radial direction of the luminescent wheel.

Abstract: A light source module used in a projection device comprises a plurality of laser emitting elements and a light adjusting device. The laser emitting elements are configured to emit excitation beams. Each excitation beam is received by an optical system of the projection device to emit sub-beams. The light adjusting device comprises a plurality of light adjusting elements. The excitation beams penetrate through the light adjusting device and are output as output beams to be converted into illumination beams by the optical system. The light adjusting elements are disposed corresponding to at least some of the laser emitting elements with reference to the sub-beam light intensity distributions, so that the illumination beam light intensity distributions conform to a preset light intensity distribution. Furthermore, a projection device is provided and comprises at least one light source module, an optical system, at least one light valve and a projection lens.

Abstract: Provided is a light-source system, comprising excitation light source, first supplementary light source, first light-guiding assembly, wavelength conversion apparatus, and second light-guiding assembly. The excitation light source is for emitting excitation light; the first supplementary light source is for emitting first supplementary light. The first light-guiding assembly is for guiding the excitation light to the wavelength conversion apparatus. The wavelength conversion apparatus is for converting excitation light to excited light and irradiate onto the first light-guiding assembly. The first light-guiding assembly is for guiding excited light to irradiate onto the second light-guiding assembly. At least some components of the second light-guiding assembly are arranged on the light path from the first light-guiding assembly.

Abstract: A projection-type image display apparatus is provided with a light source, a disk, a color separator, and first and second modulation elements. The disk generates color lights in a time-division manner based on emission light from the light source unit, and the color separator separates first, second, and third primary colors from the color lights generated by the disk. The first light modulation element modulates the separated first and second primary colors according to an input first image signal to generate a first image light, and the second light modulation element that modulates the separated third primary color according to an input second image signal to generate a second image light. A control circuit controls the first and second light modulation elements such that the second light modulation element becomes an ON-state during a spoke period of the disk upon displaying the third primary color as a single color.

Abstract: A light source module includes first to third light sources respectively providing first, second and third lights, first and second wavelength conversion layers, first and second auxiliary light sources respectively providing first and second auxiliary lights, and a dichroic member. The first wavelength conversion layer is excited by the first light and the first auxiliary light from different sides to generate a first conversion light. The second wavelength conversion layer is excited by the second light and the second auxiliary light from different sides to generate a second conversion light. The dichroic member allows the first and second auxiliary lights to transmit therethrough and reflects the first and second conversion lights. The third light transmits through the dichroic member. The first and second conversion lights and the third light are different in wavelength ranges and combined to form an illumination light.

Abstract: A projector includes a fan, a fan frame, a first casing, a second casing and a projection lens. The fan is sleeved in the fan frame, wherein the fan frame comprises a first fixing portion having a first through hole, and two slits located at two opposite sides of the first fixing portion, an extension direction of the two slits is parallel to an extension direction of the first through hole, and a length of each of the two slits is greater than a depth of the first through hole. The first casing is fixed to the fan frame, wherein a first screw passes through the first through hole and is fixed to the first casing. The second casing is fixed to the first casing. The projection lens is fixed to the second casing.

Abstract: A light source device includes a plurality of laser modules and a beam combiner. Each laser module includes a first laser diode configured to emit a first laser beam and a second laser diode configured to emit a second laser beam. The beam combiner has a first dichroic mirror region and a second dichroic mirror region. The first dichroic mirror region is configured to transmit the first laser beam going out from the first laser module, and to reflect the second laser beam going out from the second laser module. The second dichroic mirror region configured to transmit the second laser beam going out from the first laser module, and to reflect the first laser beam going out from the second laser module.

Abstract: The present invention relates to a laser light source optical projection architecture, which comprises a laser light source group, a color control device, a phosphor device and an optical filter group. Accordingly, the laser light source optical projection architecture does not require to synchronize the phosphor device with the color field sequential display system, and the color control (ratios of the color duty) does not need to be determined in advance, i.e. at the time the color control device is manufactured. Various color field ratios can be achieved by adjusting positions of the specific color control device to obtain different red, blue and green color field durations, allowing easy electronic control of the color field duty cycles.

Abstract: Provided is an illumination system including an excitation light source, a first light splitting element, a first light reflecting element, a wavelength conversion device, and a light filtering device. The excitation light source provides an excitation beam including a first sub-beam and a second sub-beam. The first light splitting element includes a first zone and a second zone. The wavelength conversion device includes an optical zone and a wavelength conversion zone. In a first time period, the first sub-beam is transmitted to the optical zone via the first zone, and the second sub-beam is transmitted to the light filtering device via the first light splitting element and the first light reflecting element. In a second time period, the excitation beam is transmitted to the wavelength conversion zone to be converted into a first conversion beam. Therefore, the structure can be simplified and the size can be reduced.

Abstract: A projector that modulates light emitted by a light source unit and projects a resultant image includes the light source unit, which includes an array light source and a first retardation film that adjusts the white balance of the light emitted by the array light source, an electric power controller that adjusts electric power to be supplied to the array light source in accordance with the period for which the light source unit was used, and a white balance controller that determines an adjustment parameter used to adjust the white balance of the light emitted by the light source unit and corresponding to the adjustment made by the electric power controller and causes the first retardation film to adjust the white balance based on the determined adjustment parameter.

Abstract: A light projection system for generating an image with three primary colors, each primary color being respectively defined by a first, second and third wavebands. The system includes a first blue laser source emitting a first beam in a fourth waveband, the first blue laser source having a first laser driver, a second blue laser source emitting a second beam having a central wavelength and a fifth waveband, the second blue laser source having a second laser driver, a substrate having a wavelength conversion element for emitting light at a plurality of wavelengths after absorption of a light beam at an excitation wavelength within a fifth waveband of the second blue laser source and a beam combiner for combining the combined first beam and the converted beam, which combination results in a white beam. Dichroic losses can be reduced by using a green phosphor together with red laser assistance.

Abstract: A light source structure, a backlight module and a display are provided. The light source structure includes a substrate and plural light source groups. The light source groups are arranged on the substrate, in which each of the light source groups includes plural light-emitting units, and there is a first distance between any two adjacent light-emitting units in each of the light source groups, and there is a second distance between two closest light-emitting units that are respectively in any two adjacent light source groups. The second distance is smaller than the first distance.

Abstract: A color separation and combination system includes a first optical system including a first optical plane, and a second optical system including second to fourth optical planes. The first optical plane guides light from a light source to the second optical plane. The second optical plane guides first color light among light from the first optical plane to the third optical plane, and guides second color light among the light from the first optical plane. The third optical plane totally reflects the first color light toward the first image display element, and totally reflects light from the first image display element toward the projection optical system. The fourth optical plane totally reflects the second color light toward the second image display element, and totally reflects light from the second image display element toward the projection optical system.

Abstract: A light source device configured to emit a light beam in a first direction emits a first colored light beam from a first exit position, a second colored light beam longer in wavelength than the first colored light beam, a third colored light beam shorter in wavelength than the first colored light beam, and a fourth colored light beam, a mixed light beam including the first colored light beam and the second colored light beam enters an outgoing light switching device disposed in a light path of the fourth colored light beam.

Abstract: A wheel apparatus includes a substrate rotatable around a rotation axis, and a plurality of optical elements respectively formed in a plurality of regions different from each other around the rotation axis on the substrate and having wavelength characteristics different from each other. The regions of the plurality of optical elements are adjacent to each other via boundary lines including linear sections. The linear sections of the boundary lines intersect with respective straight lines along the radius of the substrate at the same intersection angle greater than 0 degrees and less than 90 degrees.

Abstract: A light source device includes a phosphor wheel, a light source, a color separating-and-mixing element, and a light-guide optics. The phosphor wheel includes a base plate having a first light passage area and a second light passage area as a pair of light passage areas being annularly and point symmetrically arranged with respect to a center of the base plate, a phosphor area annularly formed on the base plate, and a motor that rotates the base plate. The color separating-and-mixing element disposed between the light source and the phosphor wheel changes a direction of traveling of fluorescence created as a result of light having being incident on the phosphor area and been converted in wavelength. The light-guide optics is provided to cause light from the light source to travel through the first light passage area, then through the second light passage area, and finally enter into the color separating-and-mixing element.

Abstract: A projector includes a first light modulation device, a second light modulation device, a third light modulation device, a first light source configured to emit excitation light, a fluorescence emitting element which is excited by the excitation light to emit fluorescence toward an incidence side of the excitation light, a first dichroic mirror configured to guide the excitation light to the fluorescence emitting element, and separate the fluorescence emitted from the fluorescence emitting element into first colored light and second colored light, and a second dichroic mirror configured to guide the excitation light to the first dichroic mirror, and reflect the second colored light separated by the first dichroic mirror, wherein the first colored light separated by the first dichroic mirror enters the first light modulation device, and the second colored light reflected by the second dichroic mirror enters the second light modulation device.

Abstract: Device for an endoscopic illumination apparatus comprising a heat pipe having a first end region and a second end region; a first heat source; a heat dissipation element for dissipating thermal energy from said first heat source; a heat sink spaced apart from the first heat source; and a clamping element, wherein the clamping element is reversibly detachably mounted on the heat dissipation element such that the first end region of the heat pipe is held between the heat dissipation element and the clamping element, wherein the heat pipe is adapted to conduct the thermal energy of the heat source to the heat sink, wherein the second end region of the heat pipe is spaced apart from the first end region, and wherein the second end region ends in the heat sink.

Abstract: A cooling device is provided with an evaporator, a condenser, a vapor pipe, and a liquid pipe. The evaporator includes a housing having a reservoir configured to retain a working fluid in a liquid phase flowing inside, a wick disposed in the housing, and transporting the working fluid in the liquid phase, and a groove member having a plurality of flow channels through which the working fluid changed in phase from the liquid phase to the gas phase flows, the groove member being coupled to the wick. The wick has a plurality of through holes which penetrate the wick along a first direction from the reservoir toward the groove member, the through holes being configured to transport the working fluid in the liquid phase retained in the reservoir in the first direction.

Abstract: A light source unit of the invention includes a light source device including first and second light sources held by a holding member, each light source being configured to emit light in a predetermined polarizing direction, a first reflection device on which light from the first light source is incident, a second reflection device on which reflection light from the first reflection device and light from the second light source are incident, and a light source control device configured to selectively drive the first and second light sources in response to an input signal, and the first reflection device reflects light in the polarizing direction incident thereon from the first light source, while the second reflection device transmits light in the polarizing direction reflected by the first reflection device for incidence thereon and reflects light in the polarizing direction from the second light source for incidence thereon.

Abstract: According to one embodiment, a liquid crystal layer is provided between a first substrate and a second substrate. A switching element is provided on the first substrate. A pixel electrode is electrically connected to the switching element. A color filter is provided on a liquid crystal side of the second substrate and corresponds to the pixel electrode. A common electrode is provided on a liquid crystal side of the color filter. A light guide plate guides laser light incident on a side surface and emits the laser light from a main surface. A diffusion plate diffuses the laser light emitted from the light guide plate and applies the laser light to the first substrate. A supporting unit supports the diffusion plate. A vibration generation unit is provided in the supporting unit and vibrates the diffusion plate.

Abstract: Disclosed herein is a lens module for a projector of laser scanning type which is focus-free and has a short throw distance. In one example, a lens module includes a first optical member including a free-curved lens that passes a beam light reflected by a minute vibrating mirror; and a second optical member including a free-curved mirror to reflect the beam light which has passed through the first optical member, or a free-curved lens to pass the beam light which has passed through the first optical member. The beam light, which has been reflected by or has passed through the second optical member, has at the same position beam waists in horizontal and vertical directions perpendicular to a propagating direction of the beam light and also has beam radii coinciding in the horizontal and vertical directions.

Abstract: A visual sense-and-tactile sense integrated presentation device includes a half mirror, a visual sense presentation body that presents visual information about an object and is disposed on a mirror surface side of the half mirror, and a tactile sense presentation body that presents tactile information and is disposed to face the visual sense presentation body across the mirror surface of the half mirror at an optical distance from the half mirror equal to an optical distance between the half mirror and the visual sense presentation body.

Abstract: An abnormality detection unit according to the invention includes a processor, and a light source device configured to emit light for each of segment periods that are time divided within a frame, and the processor obtains an illuminance value of light emitted into the frame from the light source device after a predetermined delay time has elapsed, whereupon a segment period results where a highest illuminance value is obtained, from a timing of receiving a trigger signal that is in synchronism with the frame, and detects that the light source device is in an abnormal state, when the illuminance value is less than a predetermined threshold.

Abstract: The light source device of the projection display apparatus according to the present disclosure includes: solid-state light sources that individually emit blue light, green light, and red light; a plurality of dichroic mirrors that combine the blue light, the green light, and the red light having exited from the solid-state light sources; a first diffusion plate on which the combined light having been combined by the plurality of dichroic mirrors is incident; a dynamic diffusion plate that is disposed at a position at which the combined light having exited from the first diffusion plate converges and starts to diverge.

Abstract: Aspects of this disclosure relate to adjusting the lumen output of a light source. A system may include a light source, a pipe, and at least two light-obscuring elements within the pipe. The pipe may have an inlet port and an outlet port, where the inlet port is configured to be secured to the light source such that all lumens of the light source are directed through an inner passageway of the pipe to the outlet port. The light-obscuring elements may be configured to be moved to reduce a number of lumens of the light source that traverse through the pipe to the outlet port.

Abstract: Methods and apparatus for providing circadian-friendly LED light sources are disclosed. A light source is formed to include a first LED emission (e.g., one or more LEDs emitting a first spectrum) and a second LED emission (e.g., one or more LEDs emitting a second spectrum) wherein the first and second LED emissions are combined in a first ratio and in a second ratio such that while changing from the first ratio to the second ratio the relative circadian stimulation is varied while maintaining a color rendering index above 80.

Abstract: Head-mounted display systems and methods of operation that allow users to couple and decouple a portable electronic device such as a handheld portable electronic device with a separate head-mounted device (e.g., temporarily integrates the separate devices into a single unit) are disclosed. The portable electronic may be physically coupled to the head-mounted device such that the portable electronic device can be worn on the user's head. The portable electronic device may be operatively coupled to the head-mounted device such that the portable electronic device and head mounted device can communicate and operate with one another. Each device may be allowed to extend its features and/or services to the other device for the purpose of enhancing, increasing and/or eliminating redundant functions between the head-mounted device and the portable electronic device.

Abstract: An illumination unit includes a light source section, an optical-path branching device, a photodetector, a control section, and a light-quantity-distribution control device. The light source section includes a laser light source. The optical-path branching device outputs light incident from the light source section, by branching the light into an outgoing optical path of illumination light and other optical path. The photodetector receives a light flux that travels on the other optical path. The control section controls an emitted light quantity in the laser light source, based on a quantity of the light flux received by the photodetector. The light-quantity-distribution control device is disposed between the optical-path branching device and the photodetector on the other optical path. The light-quantity-distribution control device controls a light quantity distribution in the light flux to be incident upon the photodetector.

Abstract: A projector includes an exterior housing of the projector, a first cooling target, and a cooling apparatus provided in the exterior housing and cooling the first cooling target. The cooling apparatus includes a first compressor compressing an operating fluid in a gas phase, a condenser condensing the gas-phase operating fluid compressed by the first compressor into the operating fluid in a liquid phase, a first expander decompressing the liquid-phase operating fluid condensed by the condenser to change to the operating fluid in which the liquid phase and the gas phase are mixed with each other, and a first evaporator changing part of the liquid-phase operating fluid supplied from the first expander to the gas-phase operating fluid by using heat transferred from the first cooling target and discharging the gas-phase operating fluid to the first compressor.

Abstract: A light source unit includes a first light source for emitting light in a first wavelength range, a luminescent wheel including a second light source for emitting light in a second wavelength range and a third light source for emitting light in a third wavelength range whose wavelength differs from that of the light in the second wavelength range, which are disposed circumferentially end to end in an adjacent fashion, a fourth light source for emitting light in a fourth wavelength range similar in color system to the light in the second or third wavelength range, and a control unit for controlling the fourth light source and the luminescent wheel to illuminate the fourth light source during a first color mixing period when a boundary between the second and third light sources is situated on an optical path of the light in the first wavelength range.

Abstract: An LED lighting system for use in an indoor growing system. The lighting system includes a lighting tray having a tube containing a printed circuit board therein. The circuit board has blue and red LED lights. The LEDs draw power and at least one of the LEDs draws power of less than 1 Watts and may draw less than ½ Watt. The dispersion angle of the LEDs is less than 40° degrees and may be less than 30° degrees. The heat-sinking capabilities of a standard circuit board are sufficient without special metalized layers or external heat sinks. Additionally, conversion to low voltage power is achieved remotely in an area away from the lights. In the lighting system, the ratio of red to blue LEDs is 15-24% red to 76-85% blue.

Abstract: An illumination system and a projection device are provided. The illumination system includes first excitation light sources, an excitation light source module, a wavelength conversion element and a light combining element. The excitation light source module includes second excitation light sources adapted to emit second excitation light beams and third excitation light sources adapted to emit third excitation light beams. The excitation light source module has a first symmetric axis and a second symmetric axis perpendicular to each other, where the second excitation light sources and the third excitation light sources are respectively arranged symmetrically relative to the first symmetric axis, and the second excitation light sources and the third excitation light sources are respectively arranged symmetrically relative to the second symmetric axis. The projection device includes the illumination system, a light valve and a projection lens.

Abstract: A projection apparatus and an illumination system thereof are provided. The illumination system includes a light source device, a light homogenization device, an optical transmission module, and an optical wavelength conversion module. The light homogenization device is disposed on a transmission path of a light source beam from the light source device. The optical transmission module is disposed on a transmission path of the light source beam from the light homogenization device. The optical wavelength conversion module is disposed on a transmission path of the light source beam from the optical transmission module and is configured to convert a first portion of the light source beam into a converted light beam. The converted light beam and a second portion of the light source beam form an illumination light beam. The light homogenization device is disposed outside a transmission path of the illumination light beam.

Abstract: The present invention is directed to wearable display technologies. More specifically, various embodiments of the present invention provide wearable augmented reality glasses incorporating projection display systems where one or more laser diodes are used as light source for illustrating images with optical delivery to the eye using transparent waveguides. In one set of embodiments, the present invention provides wearable augmented reality glasses incorporating projector systems that utilize transparent waveguides and blue and/or green laser fabricated using gallium nitride containing material. In another set of embodiments, the present invention provides wearable augmented reality glasses incorporating projection systems having digital lighting processing engines illuminated by blue and/or green laser devices with optical delivery to the eye using transparent waveguides.