Abstract: A display system includes a projector configured to project image light and a reflector including a gripper and a reflection surface over which a reflective material having light scattering capability is uniformly disposed.

Abstract: A wavelength conversion device includes a rotating device and a base member which is rotated by the rotating device. The base member includes a wavelength conversion portion which is disposed in an annular shape on a first surface of the base member, a first region which is located further inside than the wavelength conversion portion, and a second region which is located further outside than the wavelength conversion portion, and is larger in surface area than the first region.

Abstract: A light source device includes a light emitting element adapted to emit light having a first polarization direction and a first wavelength, a polarization separation element adapted to transmit either one of the light having the first polarization direction and the first wavelength and light having a second polarization direction and the first wavelength, and reflect the other, and transmit or reflect light having a second wavelength to emit the light having the second wavelength toward a same direction as a direction in which the light having the second polarization direction and the first wavelength is emitted, a wavelength conversion element adapted to convert the light having the first wavelength into the light having the second wavelength, and a diffusion optical system disposed on a light path between the polarization separation element and the wavelength conversion element. The diffusion optical system includes a diffusion section and a light separation section.

Abstract: A light source device includes a light emitting element adapted to emit light having a first polarization direction and a first wavelength, a polarization separation element adapted to transmit either one of the light having the first polarization direction and the first wavelength and light having a second polarization direction and the first wavelength, and reflect the other, and transmit or reflect light having a second wavelength to emit the light having the second wavelength toward a same direction as a direction in which the light having the second polarization direction and the first wavelength is emitted, a wavelength conversion element adapted to convert the light having the first wavelength into the light having the second wavelength, and a diffusion optical system disposed on a light path between the polarization separation element and the wavelength conversion element. The diffusion optical system includes a diffusion section and a light separation section.

Abstract: A wavelength conversion device includes a rotating device and a base member which is rotated by the rotating device. The base member includes a wavelength conversion portion which is disposed in an annular shape on a first surface of the base member, a first region which is located further inside than the wavelength conversion portion, and a second region which is located further outside than the wavelength conversion portion, and is larger in surface area than the first region.

Abstract: An illumination device includes: a light source device adapted to emit an excitation light beam; and a rotating fluorescent plate having a single fluorescent layer adapted to convert a part or whole of the excitation light beam into a fluorescent light beam. The fluorescent light beam includes two or more colored light beams, and the single fluorescent layer is formed on a circular disk, which can be rotated by a motor, continuously along a circumferential direction of the circular disk.

Abstract: An illumination device includes: a light source device adapted to emit an excitation light beam; and a rotating fluorescent plate having a single fluorescent layer adapted to convert a part or whole of the excitation light beam into a fluorescent light beam. The fluorescent light beam includes two or more colored light beams, and the single fluorescent layer is formed on a circular disk, which can be rotated by a motor, continuously along a circumferential direction of the circular disk.

Abstract: An illumination device includes: a light source device adapted to emit an excitation light beam; and a rotating fluorescent plate having a single fluorescent layer adapted to convert a part or whole of the excitation light beam into a fluorescent light beam. The fluorescent light beam includes two or more colored light beams, and the single fluorescent layer is formed on a circular disk, which can be rotated by a motor, continuously along a circumferential direction of the circular disk.

Abstract: A laser beam source device includes: a first light emission element and a second light emission element each of which has a light emission portion for emitting a laser beam having a fundamental wavelength, wherein the first light emission element and the second light emission element are disposed such that light emitted from the light emission portion of each of the first light emission element and the second light emission element can enter the light emission portion of the other light emission element, at least either the first light emission element or the second light emission element has the plural light emission portions, and the areas of the plural light emission portions are not uniform.

Abstract: A light source device includes a light source unit emitting light of a first wavelength and a wavelength converting element converting light of the first wavelength into light of a second wavelength. An external mirror transmits light of the second wavelength toward an emission destination and reflects light of the first wavelength to resonate between the light source unit and the external mirror. A wavelength separating section transmits light converted from the first wavelength to the second wavelength while traveling from the external mirror to the light source unit and reflects light of the first wavelength in order to separate the different wavelength light. A turnback section reflects light of the second wavelength separated by the wavelength separating section toward the emission destination. In addition, the wavelength separating section reflects light of the first wavelength from the light source unit to travel toward the wavelength converting element.

Abstract: A projector includes: light emitting devices provided in correspondence with pixels that form an image displayed on an illuminated surface, each of the light emitting devices emitting light modulated in accordance with an image signal; and shaping optical elements provided in correspondence with the light emitting devices, each of the shaping optical elements shaping the region illuminated with the light emitted from the corresponding light emitting device, wherein the shaping optical elements form a shaped light region in a position on the light path between the shaping optical elements and the illuminated surface.

Abstract: A light source device includes a light source unit emitting light of a first wavelength and a wavelength converting element converting light of the first wavelength into light of a second wavelength. An external mirror transmits light of the second wavelength toward an emission destination and reflects light of the first wavelength to resonate between the light source unit and the external mirror. A wavelength separating section transmits light converted from the first wavelength to the second wavelength while traveling from the external mirror to the light source unit and reflects light of the first wavelength in order to separate the different wavelength light. A turnback section reflects light of the second wavelength separated by the wavelength separating section toward the emission destination. In addition, the wavelength separating section reflects light of the first wavelength from the light source unit to travel toward the wavelength converting element.

Abstract: A light source device includes: a plurality of light emission units which emit light; a scattering unit which scatters at least a part of light received from the plural light emission units; a light detecting unit which detects a part of light emitted from the plural light emission units and scattered by the scattering unit; and a control unit which controls the plural light emission units based on detection result from the light detecting unit.

Abstract: A projector that includes a laser beam source that outputs a laser beam that is modulated based on an image signal and a screen on which the light beam is projected. The projector also includes a scanning unit that scans the laser beam within a predetermined surface and a scan monitoring unit that monitors scanning of the scanning unit and outputs a result of the monitoring. The projector further includes a beam light supply stopping unit that controls the laser beam source so as to stop output of the laser beam based on the result of monitoring output by the scan monitoring unit.

Abstract: A light source includes a light source unit which supplies first wavelength light, a wavelength converting unit which converts the first wavelength light into second wavelength light different from the first wavelength light, and a leakage preventing unit which prevents leakage of the first wavelength light out of the light source. The area where the light source unit and the wavelength converting unit are disposed is optically separated from the area where the leakage preventing unit is disposed.

Abstract: A projector that projects video light corresponding to an image signal onto a display surface includes: a light source device that emits light; a housing that houses at least the light source device; a projection lens, that is, an optical element that transmits the video light projected onto the display surface and emits the video light toward the outside of the housing; a detecting unit that detects detection light supplied to the optical element; and a control unit that adjusts a light amount of the video light on the basis of a result of the detection by the detecting unit. The projector is set such that, when the optical element is in a normal setting state, the light amount density of the video light is equal to or lower than a predetermined value on an emission surface for emitting the video light of the optical element.

Abstract: A light source includes a light source unit which supplies first wavelength light, a wavelength converting unit which converts the first wavelength light into second wavelength light different from the first wavelength light, and a leakage preventing unit which prevents leakage of the first wavelength light out of the light source. The area where the light source unit and the wavelength converting unit are disposed is optically separated from the area where the leakage preventing unit is disposed.

Abstract: An illumination device includes: a light source device adapted to emit an excitation light beam; and a rotating fluorescent plate having a single fluorescent layer adapted to convert a part or whole of the excitation light beam into a fluorescent light beam. The fluorescent light beam includes two or more colored light beams, and the single fluorescent layer is formed on a circular disk, which can be rotated by a motor, continuously along a circumferential direction of the circular disk.

Abstract: A light source device includes a light source unit emitting light of a first wavelength and a wavelength converting element converting light of the first wavelength into light of a second wavelength. An external mirror transmits light of the second wavelength toward an emission destination and reflects light of the first wavelength to resonate between the light source unit and the external mirror. A wavelength separating section transmits light converted from the first wavelength to the second wavelength while traveling from the external mirror to the light source unit and reflects light of the first wavelength in order to separate the different wavelength light. A turnback section reflects light of the second wavelength separated by the wavelength separating section toward the emission destination. In addition, the wavelength separating section reflects light of the first wavelength from the light source unit to travel toward the wavelength converting element.

Abstract: An image display device includes a lighting section including a light source, a light modulation section that modulates light emitted from the lighting section in accordance with an image signal to form an image, and a scintillation reduction section that reduces the scintillation caused by the light emitted from the lighting section, and the scintillation reduction section reduces the scintillation so that a plurality of areas having different extents of reduction of the scintillation from each other is formed in the image.