Abstract: According to a spinning forming device, while a plate is rotated by a rotating shaft, a transform target portion of the plate is pressed by a processing tool and locally heated by a heater that performs induction heating. The heater includes a coil portion having a doubled circular-arc shape and is inclined by an inclining device relative to a direction from the rotating shaft toward the processing tool. A measuring unit measures distances each from the coil portion to an outer peripheral original portion of the plate at a plurality of measurement points distributed in a circumferential direction of the rotating shaft. A controller controls the inclining device based on a measurement result of the measuring unit such that an angle difference between the coil portion and the outer peripheral original portion becomes not more than a predetermined angle.

Abstract: In a spinning forming method, a plate including a peripheral portion at which a ring-shaped projection is provided is used, the projection projecting in a thickness direction of the plate. Further, while rotating the plate, a transform target portion of the plate is locally heated, and a processing tool is pressed against the transform target portion to transform the plate. According to this configuration, a heat capacity of the peripheral portion of the plate can be increased. With this, when heating the vicinity of the peripheral portion of the plate, the peripheral portion can be prevented from becoming high in temperature. As a result, deformation of the peripheral portion of the plate can be suppressed.

Abstract: A spinning forming device includes: a receiving jig supporting a central portion of a plate to be formed; and a rotating shaft to which the receiving jig is attached. The spinning forming device also includes: a heater configured to locally heat a transform target portion of the plate by induction heating; and a processing tool configured to press the transform target portion to transform the plate. The spinning forming device further includes a pair of holding rollers configured to sandwich an outside portion of the plate, the outside portion being located outside the transform target portion.

Abstract: A spinning forming device includes: a rotating shaft that rotates a plate to be formed; a processing tool that presses a transform target portion of the plate to transform the plate; and a heater that locally heats the transform target portion by induction heating. The heater includes an electric conducting pipe, and the electric conducting pipe includes a coil portion extending in a circumferential direction of the rotating shaft and having a doubled circular-arc shape facing the plate. A cooling liquid circulates through the electric conducting pipe by a circulating device.

Abstract: A spinning forming device includes: a receiving jig supporting a central portion of a plate to be formed; and a rotating shaft to which the receiving jig is attached. Further, the spinning forming device includes: a heater that locally heats a transform target portion of the plate by induction heating; and a processing roller that presses the transform target portion to transform the plate. Furthermore, the spinning forming device includes a cooling device and/or a lubricant supply device. The cooling device sprays a cooling gas toward the processing roller. The lubricant supply device supplies a lubricant onto the processing roller or to between the processing roller and the plate.

Abstract: A spinning forming device according to one aspect, a receiving jig supporting a central portion of a plate to be formed is attached to a rotating shaft, and a transform target portion of the plate is pressed by a processing tool and locally heated by a heater that performs induction heating. The heater includes an electric conducting pipe in which a cooling liquid flows. The electric conducting pipe includes: a coil portion extending in a circumferential direction of the rotating shaft and having a doubled circular-arc shape facing the plate; and a pair of lead portions extending from the coil portion outward in a radial direction of the rotating shaft. Each of the pair of lead portions is retreated father away from the plate than the coil portion at its end portion adjacent to the coil portion.

Abstract: A light source apparatus and a projection display apparatus according to the present disclosure include: a laser light source; and a multiplexing reflection mirror having a first surface on which a partial reflection coating having a predetermined reflectance is formed, and a second surface on which a total reflection coating is formed, the first surface and the second surface being opposite to each other and formed in a parallel flat shape. The multiplexing reflection mirror is disposed so as to incline toward an optical path of an emission light from the laser light source such that the emission light is incident from first surface.

Abstract: A spinning thickening forming method is a method of, while rotating a plate including a center portion fixed to a fixing jig, increasing a thickness of a peripheral portion of the plate. Specifically, while locally heating the peripheral portion of the plate such that at least a portion of the plate which is adjacent to the fixing jig maintains stiffness, a forming roller is pressed against the peripheral portion of the plate to compress the peripheral portion in at least a direction perpendicular to a thickness direction of the peripheral portion.

Abstract: A light source device having a large cooling action on the base member of a discharge lamp. A connector on the sides of the power supply and the air blower and the base-side connector of a discharge lamp are connected to each other through a connection cable having a power cable in which an air blow pipe is contained. An electric power is supplied from the power supply to a base part through the power cable of the connection cable, the base-side connector and a flow passage bending member. The cool air from the air blower is supplied to the groove part of the base part through the air blow pipe of the connection cable, the base-side connector and an air blow passage in the flow passage-bending member.

Abstract: A spinning forming method includes a first forming step and a second forming step, in each of which a plate fixed to a main shaft is formed while being rotated. In the first forming step, a processing tool is brought into contact with a first main surface of the plate to form a first level-changing portion extending from the first main surface toward a second main surface. In the second forming step, the processing tool is brought into contact with the second main surface at an outer peripheral side of the first level-changing portion to form a second level-changing portion extending in an opposite direction to the first level-changing portion.

Abstract: A spinning forming apparatus shapes a plate while rotating the plate around a rotational axis. The spinning forming apparatus includes: a holding member to which the plate is attached and which rotates the plate around the rotational axis; a processing tool configured to contact a first main surface of the plate to process and shape the plate; and a heater configured to heat the plate. The heater is arranged at the opposite side of the processing tool across the plate. The heater locally heats a position of a second main surface of the plate opposite to the first main surface, the position being located on a circumference around the rotational axis, the circumference being defined by a position, with which the processing tool contacts, of the plate.

Abstract: A lighting device configured to output light of predetermined color includes: a plurality of solid-state light sources including at least a first solid-state light source and a second solid-state light source; a drive section configured to drive each of the plurality of solid-state light sources individually; a first phosphor for excitation by first emission light emitted from the first solid-state light source; and a second phosphor for excitation by second emission light emitted from the second solid-state light source, and first fluorescence and second fluorescence are of different color.

Abstract: A light source apparatus includes: an excitation light source; a phosphor having, as a main fluorescence wavelength region, wavelengths of green excited by excitation light emitted from the excitation light source; a red laser light source that oscillates in a red wavelength region; an optical multiplexer that multiplexes fluorescence emitted from the phosphor and red laser light emitted from the red laser light source; and color demultiplexing optics that demultiplexes the multiplexed light into two light beams. A cutoff wavelength of the color demultiplexing optics is a wavelength in the wavelength region of fluorescence, and is shorter than the red wavelength region.

Abstract: A light source apparatus includes: an excitation light source including a laser light source; a first wheel that is controlled to rotate, and includes. in a part of a surface thereof to be illuminated by excitation light emitted from the excitation light source, a phosphor layer to be excited by the excitation light; and a second wheel that is controlled to rotate, and includes a dichroic filter that outputs light having a desired wavelength component of each of fluorescence emitted from the phosphor layer of the first wheel and the excitation light emitted from the excitation light source.

Abstract: The light source device includes a first light source component, a fluorescent component, a first illuminance homogenizer, and a relay optical system. The first light source component emits laser light. The fluorescent component has a phosphor. The phosphor is excited by laser light. The first illuminance homogenizer converts the laser light into laser light showing a spatially uniform light intensity distribution. The first illuminance homogenizer is disposed between the first light source component and the fluorescent component. The relay optical system guides laser light emitted from the first illuminance homogenizer to the fluorescent component. The relay optical system is disposed between the first illuminance homogenizer and the fluorescent component.

Abstract: A solid-state light source unit emits excitation light. Fluorescent material layer is formed on each side of a glass substrate of a fluorescent plate so as to interpose a reflective film therebetween. The first optical system optically guides, to a rod integrator, red and blue LED light, and green fluorescence that is generated by excitation occurring when blue laser light emitted from the solid-state light source unit is applied to the fluorescent material layer on one surface of the fluorescent plate, and that is emitted in the ?X direction. The second optical system optically guides, to the rod integrator, red and blue LED light, and green fluorescence that is generated by excitation occurring when blue laser light emitted from the solid-state light source unit is applied to the fluorescent material layer on the other surface of the fluorescent plate, and that is emitted in the +X direction.

Abstract: A light source apparatus includes: an excitation light source including a laser light source; a first wheel that is controlled to rotate, and includes, in a part of a surface thereof to be illuminated by excitation light emitted from the excitation light source, a phosphor layer to be excited by the excitation light; a dichroic mirror that guides fluorescence emitted from the phosphor layer of the first wheel and the excitation light to an illumination optical system; and a second wheel that is controlled to rotate, and includes a dichroic filter that transmits light having a desired wavelength component of each of the fluorescence and the excitation light output from the dichroic mirror.

Abstract: This lighting device comprises a laser light source, a phosphor having a yellow phosphor that is excited by the laser light source, and a color filter on which fluorescent light emitted from the phosphor is incident. The color filter has first and second segments with different transmission spectrums, the first segment transmitting the entire wavelength band of yellow fluorescent light emitted from the yellow phosphor, and the second segment removing the short wavelength component of the yellow fluorescent light.

Abstract: An illuminator 10 according to one embodiment includes laser light sources 22 and 28 for emitting laser light, at least two phosphor substrates 16 with phosphors 112, 114 and 116 arranged thereon which can be excited by laser light to emit fluorescent light, and an optical element 62 for spatially combining together the fluorescent light emitted from the at least two phosphor substrates 16.

Abstract: A light source device has: a light source unit including solid-state light sources emitting blue-color light and a condensing lens; a dichroic mirror polarization separating color light into first and second polarization components; a fluorescence emission plate excited with the first polarization component, emitting fluorescence of green and red components to enter the dichroic mirror; a first retardation plate converting the second polarization component to a circularly polarized light; and a reflection plate reflecting a light passed through the first retardation plate to reenter the same. The color lights from the fluorescence emission plate and the first retardation plate are combined at the dichroic mirror. A second retardation plate converts the polarization direction of the light from the light source unit, so as to control the ratio of p-polarization and s-polarization components. Lights from solid-state light sources are condensed efficiently and a high spectrum-utilization factor is obtained.