Abstract: A wavelength conversion plate includes a conversion region and a reflection region on a base surface. The conversion region includes a wavelength conversion member configured to receive excitation light and generate a color different from a color of the excitation light. The reflection region is configured to reflect the excitation light. The reflection region includes a transmissive diffusion surface, a transmissive layer, and a reflection surface. The transmissive diffusion surface is configured to diffuse the excitation light. The transmissive layer is configured to transmit the excitation light. The reflection surface is configured to reflect the excitation light. The transmissive diffusion surface is in a position separate from a surface closer to the base surface, of the wavelength conversion member, toward a direction from which the excitation light is incident.

Abstract: This invention is capable of detailed control in accordance with the mode of using a lighting apparatus and the like.

Abstract: A light-source device includes an excitation light source, an optical member, and a wavelength converter. The excitation light source is configured to emit first color light. The optical member has a reflecting surface configured to reflect the first color light emitted from the excitation light source. The wavelength converter includes a wavelength conversion member on which the first color light reflected by the optical member is incident. The wavelength conversion member is configured to convert at least part of the first color light into second color light having a wavelength different from a wavelength of the first color light and emit the second color light. A center of the first color light on the reflecting surface of the optical member does not intersect with a light flux of the first color light emitted from the wavelength converter.

Abstract: A light source device includes: a first light source to emit first color light; a second light source to emit second color light; a wavelength conversion unit to convert at least a portion of the first color light into a third color light; a light incident element to which the first color light, the second color light, and the third color light enter; a first filter to reflect the first color light toward the wavelength conversion unit; and a second filter to reflect the second color light toward the light incident element. The first filter and the second filter are separately disposed on an optical path of the third color light between the wavelength conversion unit and the light incident element.

Abstract: A light source module includes: a light source to emit a light beam having a first wavelength band in a first direction; a first condenser lens to condense the light beam emitted from the light source in the first direction; a condenser optical system to condense the light beam from the first condenser lens in a second direction orthogonal to the first direction to form an irradiation spot; a wavelength converter to convert the first wavelength band of the light beam condensed by the condenser optical system into a light beam having a second wavelength band; a second condenser lens to condense the light beam having the second wavelength band at a predetermined position, a first adjuster to adjust a position of the first condenser lens; and a second adjuster to adjust a position of the second condenser lens.

Abstract: A welding burn remover includes: a mover including a movable body to which a support of an electrolytic end effector is attached and at least one actuator that moves the movable body; and processing circuitry configured to control the actuator. The processing circuitry is configured to execute an electrolytic treatment in which the processing circuitry controls the actuator to slide an electrode on a welding burn portion of a welded workpiece through a short-circuit prevention cover while controlling a pump to supply an electrolytic solution to a boundary by an electrolytic solution feeder. The support of the electrolytic end effector includes: a base attached to the movable body of the mover; and a coupler connecting the electrode to the base such that the electrode is angularly displaceable relative to the base.

Abstract: A substrate processing apparatus includes a suctioning unit for suctioning a processing liquid existing inside a processing liquid pipe that communicates with a discharge port, and a controller. In the suctioning step, the controller executes a suctioning step of suctioning the processing liquid existing inside the processing liquid pipe by the suctioning unit. The controller selectively executes a first suctioning step of retracting a leading end surface of the processing liquid and disposing the leading end surface of the processing liquid after suctioning in a preliminarily set standby position inside the processing liquid pipe, and a second suctioning step of retracting the leading end surface of the processing liquid further back than the standby position.

Abstract: A light guide optical device includes an optical path combiner including: a first deflector to deflect first light incident from a first direction to an emission direction; a second deflector to deflect second light incident from a second direction different from the first direction, to the emission direction; and a transmission portion between the first deflector and the second deflector, the transmission portion to transmit third light incident from a third direction different from each of the first direction and the second direction, to the emission direction. The optical path combining unit combines the first light, the second light, and the third light, and emits the combined light to the mission direction.

Abstract: A post-processing device includes a processing tray on which a medium on which recording was performed by a recording unit is loaded, a rear end alignment unit that aligns a rear end (an example of an end portion) of the medium on the processing tray, a post-processing unit that performs post-processing on the medium aligned by the rear end alignment unit, and a pressing member that presses the rear end of the medium. The post-processing unit is configured to be movable. The pressing member is provided to be rotatable in conjunction with movement of the post-processing unit, in a state in which the pressing member is in contact with the medium aligned by the rear end alignment unit.

Abstract: A projector includes an image forming unit configured to emit image light that forms an image and an imaging optical system configured to form an image by reflecting the image light. S magnification power at a point of the imaging optical system where the image light is incident and optical-path length between the image forming unit and the imaging optical system is short is made higher than a magnification power at a point of the imaging optical system where the image light is incident and the optical-path length between the image forming unit and the imaging optical system is long.

Abstract: A light-source device includes an excitation light source; a wavelength conversion unit to convert at least some of first color light into second color light; a light mixing element including a rod integrator to mix at least one of the first color light and the second color light from the conversion unit; and an optical element on an optical path of the first color light and having a reflecting surface. A center of the first color light on the reflecting surface intersects with only one of a first light flux of the first color light incident on and a second light flux of the first color light emitted from the conversion unit. An angle formed by a projection straight line of the first color light incident on an incident aperture of the integrator and a predetermined axial line of the incident aperture of the integrator is smaller than 40°.

Abstract: A light source device includes: a light source to emit light including first color light of excitation light; an optical element including multiple lenses on at least one surface of the optical element; a condenser optical system to condense the first color light; a wavelength converter to convert the first color light into second color light; and a color light separator to separate the first color light and the second color light. The light source, the optical element, the condenser optical system, the wavelength converter, and the color light separator are disposed in this order from the light source. The multiple lenses of the optical element has: a first divergence angle in a first direction along a plane of the multiple lenses; and a second divergence angle in a second direction orthogonal to the first direction, and the first divergence angle is smaller than a second divergence angle.

Abstract: A marking device, a medium, a container, and a marking method. The marking device includes a first marker including a first optical system having a first focal point, the first marker being configured to concentrate a first light onto a first area of a non-planar portion of a medium to perform marking on the first area, the non-planar portion including a plurality of areas including the first area and a second area, and a second marker including a second optical system having a second focal point. The second marker is configured to concentrate a second light onto the second area to perform the marking on the second area, and the second focal point of the second optical system is different from the first focal point of the first optical system in a direction parallel to a central axis of the first optical system.

Abstract: An illumination device includes: a first light source to emit a first light beam having a first intensity distribution in a first direction; a second light source to emit a second light beam having a second intensity distribution in a second direction different from the first direction; a light combiner to combine the first light beam and the second light beam; and a light homogenizer to homogenize the first intensity distribution and the second intensity distribution to generate a third light beam. The light combiner is a polygonal prism including: a reflection surface to generate a reflection light beam; and multiple transmission surfaces to generate a transmission light beam. The light homogenizer homogenizes the reflection light beam and the transmission light beam and emits the third light beam. The first light beam and the second light beam propagate in different optical paths in the light combiner.

Abstract: A light source device includes: a first light source configured to emit a first excitation beam; a second light source different from the first light source, a second light source configured to emit a second excitation beam; an optical combiner configured to: reflect or transmit the first excitation beam; and reflect or transmit the second excitation beam; a first wavelength converter including a first phosphor to emit a first fluorescent beam proceeding in a first optical path; and a second wavelength convertor including a second phosphor to emit a second fluorescent beam proceeding in a second optical path. The optical combiner is at a point at which the first optical path of the first fluorescent beam intersects the second optical path of the second fluorescent beam.

Abstract: A light source device includes a light source, a plurality of wavelength conversion units, and a plurality of optical systems. The plurality of wavelength conversion units each includes a wavelength conversion region configured to receive light emitted from the light source and emit light with a wavelength different from a wavelength of the received light. The plurality of optical systems are configured to form images of wavelength conversion regions of the plurality of wavelength conversion units. The light source is configured to irradiate the wavelength conversion units with light at a same timing. The plurality of optical systems are configured to cause the images of the wavelength conversion regions of the plurality of wavelength conversion units to be adjacent to or superimposed on each other.

Abstract: A pattern forming apparatus for a base material includes a holding unit and a pattern forming unit. The holding unit is configured to hold a base material on which one of a protrusion shape portion and a recess shape portion is formed. The pattern forming unit is configured to form a pattern on the base material. The pattern is formed on at least one of the protrusion shape portion, the recess shape portion, a periphery of the recess shape portion, a periphery of the protrusion shape portion, a portion along the protrusion shape portion, and a portion along the recess shape portion.

Abstract: A label is attached to a base material in a container. The container includes patterns formed in a plurality of stages on the base material by laser irradiation. The patterns may include an aggregation of dots formed by the laser irradiation. The container may further include a first information region and a second information region. Information including a numeral, a symbol, or an image is made visible by the patterns in the first information region. The second information region is formed on the label. Information including a numeral, a symbol, or an image is made visible in the second information region.

Abstract: A light-source device includes an excitation light source, an optical member, and a wavelength converter. The excitation light source is configured to emit first color light. The optical member has a reflecting surface configured to reflect the first color light emitted from the excitation light source. The wavelength converter includes a wavelength conversion member on which the first color light reflected by the optical member is incident. The wavelength conversion member is configured to convert at least part of the first color light into second color light having a wavelength different from a wavelength of the first color light and emit the second color light. A center of the first color light on the reflecting surface of the optical member does not intersect with a light flux of the first color light emitted from the wavelength converter.

Abstract: An image projection apparatus includes: a light source; an image display element including multiple micromirrors arranged in two dimensions, the multiple micromirrors forming an image display plane, each micromirror having a reflecting surface; and a projection optical system. Conditional expressions (1) and (2) below are satisfied: ?1?14(deg)??(1) 1.2<BF/L<2.2??(2) where ?1 is a maximum tilt angle of the reflecting surface of each micromirror with respect to the image display plane, L is a diagonal length of the image display plane, and BF is a distance between a vertex of a lens within the projection optical system and closest to the image display plane and the image display plane along an optical axis of the projection optical system.