Abstract: A two-dimensional optical scanning mirror device, a manufacturing method for the same, a two-dimensional optical scanning device and an image projector. A two-dimensional optical scanning mirror device includes a substrate, a movable mirror portion supported on the substrate in such a manner that two-dimension optical scanning is possible, a hard magnetic thin film provided in the movable mirror portion and a magnetic field generator that includes at least an alternating magnetic field generator for driving the movable mirror portion, where the hard magnetic thin film has a magnetization direction in a direction of a film plane, and the ratio of the magnetic field generated by the magnetic field generator relative to the coercive force of the hard magnetic thin film is 0.2 or lower.

Abstract: To provide a multiplexer that makes it possible to achieve a reduction in size and that minimizes the influence of the expansion of laser light on a multiplexing unit. A multiplexer is provided with a plurality of waveguides, multiplexing units that are provided at an intermediate location within the waveguides, and laser light sources, wherein: the first multiplexing unit is arranged at a position that is closest to the laser light sources; and the laser light sources that have an optical axis at a position that is separated from the transmission axis of the visible light that is introduced into the first multiplexing unit are arranged so that the optical axis is inclined with respect to the transmission axis and the outer periphery of laser light that expands at a predetermined expansion angle passes in front of the first multiplexing unit.

Abstract: The relationship between space coordinates and a plurality of feature amounts gained from at least a pattern or a change in the pattern that has been projected from a plurality of projection units is found in advance, and the relationship between the feature amounts and the space coordinates is used in order to find the space coordinates of the surface of an object from the feature amounts that have been gained from a pattern or a change in the pattern projected from the plurality of projection units onto the surface of the object.

Abstract: Provided is a light beam emission device and a light beam projection device, that are downsizable, have a simple configuration, and simplify complicated processing of video signals, such as the timing adjustment of video output signals, without generating color irregularity. The devices include: a plurality of light sources; and a condensing member. A range in the light source array direction, in which emission spots of the light beams emitted from the plurality of light sources respectively exist, is within a size in the array direction of a light beam, immediately after the light beam emitted from an emission spot located most closely to the center of the plurality of light sources, with respect to the condensing member, passed through the condensing member.

Abstract: The present invention relates to an optical scanning type video projection device that decreases the height of the optical scanning type video projection device by improving the disposition of a light source module device and an optical scanning mirror device. The optical scanning type video projection device has: a first substrate on which an optical waveguide type multiplexer having a plurality of optical waveguides and a light multiplexer is provided; a second substrate on which an optical scanning mirror device having a movable mirror is provided; and an optical member configured to guide a light beam emitted from the optical waveguide type multiplexer to the movable mirror in a direction that is different from an emitting direction of the light beam. The first substrate and the second substrate are disposed in parallel with each other.

Abstract: When a predetermined image is displayed for a user such that the user is able to visually recognize the image, the user sight line direction is detected, a part assumed to be present in the detected user sight line direction is set to a first image, an image complementary to the first image for the predetermined image is set to a second image, the positions of the retinas of the eyes of the user are scanned with laser light from a retinal scanning display unit fitted to the head of the user and the first image is focused on a position away from the position of the eyes of the user by a first distance and is displayed. The second image is displayed on the surface of the panel of a panel display unit in a position away from the user by a second distance shorter than the first.

Abstract: To provide a multiplexer that makes it possible to achieve a reduction in size and that minimizes the influence of the expansion of laser light on a multiplexing unit. A multiplexer is provided with a plurality of waveguides, multiplexing units that are provided at an intermediate location within the waveguides, and laser light sources, wherein: the first multiplexing unit is arranged at a position that is closest to the laser light sources; and the laser light sources that have an optical axis at a position that is separated from the transmission axis of the visible light that is introduced into the first multiplexing unit are arranged so that the optical axis is inclined with respect to the transmission axis and the outer periphery of laser light that expands at a predetermined expansion angle passes in front of the first multiplexing unit.

Abstract: A two-dimensional optical scanning mirror device, a manufacturing method for the same, a two-dimensional optical scanning device and an image projector. A two-dimensional optical scanning mirror device includes a substrate, a movable mirror portion supported on the substrate in such a manner that two-dimension optical scanning is possible, a hard magnetic thin film provided in the movable mirror portion and a magnetic field generator that includes at least an alternating magnetic field generator for driving the movable mirror portion, where the hard magnetic thin film has a magnetization direction in a direction of a film plane, and the ratio of the magnetic field generated by the magnetic field generator relative to the coercive force of the hard magnetic thin film is 0.2 or lower.

Abstract: The relationship between space coordinates and a plurality of feature amounts gained from at least a pattern or a change in the pattern that has been projected from a plurality of projection units is found in advance, and the relationship between the feature amounts and the space coordinates is used in order to find the space coordinates of the surface of an object from the feature amounts that have been gained from a pattern or a change in the pattern projected from the plurality of projection units onto the surface of the object.

Abstract: The invention relates to an optical multiplexer, a light source module, a two-dimensional optical scanning device and an image projection device, where the effects of stray light that has failed to enter into an input optical waveguide can be reduced. Light that is in or below the range of 2.5 times greater than the full width at half maximum of the light intensity distribution of a light beam that has not been inputted into an optical waveguide from among the respective light beams that have been inputted into the input ends of the plurality of input optical waveguides is prevented from overlapping with the multiplexed light outputted from the output optical waveguide in the output end of the output optical waveguide.

Abstract: The invention relates to an optical multiplexer, a light source module, a two-dimensional optical scanning device and an image projection device, where the light beam intensity from a plurality of light sources can be attenuated to a desired value without installing an additional optical attenuator element. The optical coupling ratio of an optical coupling part provided in an optical multiplexing unit is set in such a manner that the total intensity of light beams that have been inputted into individual input optical waveguides from the light sources is attenuated by a value in a range from 5 dB to 40 dB at a stage of being outputted as multiplexed light from an output optical waveguide.

Abstract: The invention relates to an optical waveguide-type optical multiplexer, an optical waveguide-type multiplexing light source device and an image projection device, where the intensity of a light beam emitted from a light source is attenuated to a desired value without installing an additional optical attenuator element. One of a plurality of optical waveguides on the light emission side for emitting light distributed/multiplexed in an optical multiplexer unit excluding an optical waveguide on the light emission side in which the greatest output light power can be gained for each wavelength from among the optical waveguides on the light emission side in the case where a plurality of light sources is driven is used as an optical waveguide for light emission.

Abstract: When a predetermined image is displayed for a user such that the user is able to visually recognize the image, the user sight line direction is detected, a part assumed to be present in the detected user sight line direction is set to a first image, an image complementary to the first image for the predetermined image is set to a second image, the positions of the retinas of the eyes of the user are scanned with laser light from a retinal scanning display unit fitted to the head of the user and the first image is focused on a position away from the position of the eyes of the user by a first distance and is displayed. The second image is displayed on the surface of the panel of a panel display unit in a position away from the user by a second distance shorter than the first.

Abstract: Provided are agents for prevention and therapeutic treatment of cataract that act by a different mechanism from conventional agents, and use of a PPAR activator for production of such agents. An agent for prevention and/or therapeutic treatment of cataract, containing a PPAR activator as an active ingredient, is used.

Abstract: A two-dimensional optical scanning mirror device, a manufacturing method for the same, a two-dimensional optical scanning device and an image projector. A two-dimensional optical scanning mirror device includes a substrate, a movable mirror portion supported on the substrate in such a manner that two-dimension optical scanning is possible, a hard magnetic thin film provided in the movable mirror portion and a magnetic field generator that includes at least an alternating magnetic field generator for driving the movable mirror portion, where the hard magnetic thin film has a magnetization direction in a direction of a film plane, and the ratio of the magnetic field generated by the magnetic field generator relative to the coercive force of the hard magnetic thin film is 0.2 or lower.

Abstract: This invention is provided with: a light source; a light scanning mirror; a measurement mechanism for measuring a change in the intensity of light reflected from an eyeball as time elapses through the scanning of at least a surface of the pupil with a light beam by means of the light scanning mirror; a sampling mechanism for sampling the intensity of light reflected from the pupil from the measured change in the intensity of the reflected light as time elapses; and a mechanism for detecting the size and the position of the pupil by synchronizing the sampled intensity of light reflected from the pupil, and the scanning time during which the surface of the eyeball is scanned; and an image generating mechanism for forming an image on the retina of the eyeball by projecting a light beam for generating an image onto the pupil in the detected position while scanning.

Abstract: Provided are: a material having high thermal conductivity that includes an alumina fiber sheet and a resin, wherein the material having high thermal conductivity includes 20-90% by mass of the alumina fiber sheet; and a method for producing a material having high thermal conductivity, the method including (1) a step for preparing a fiber sheet that includes an alumina source by electrostatic spinning or dry spinning in which a dispersion including an alumina source and a water-soluble polymer is used as a spinning material, (2) a step for firing the fiber sheet including an alumina source to prepare an alumina fiber sheet, and (3) a step for impregnating the alumina fiber sheet with a resin solution having a resin concentration of 10% by weight or less.

Abstract: To provide a multiplexer that makes it possible to achieve a reduction in size and that minimizes the influence of the expansion of laser light on a multiplexing unit. A multiplexer is provided with a plurality of waveguides, multiplexing units that are provided at an intermediate location within the waveguides, and laser light sources, wherein: the first multiplexing unit is arranged at a position that is closest to the laser light sources; and the laser light sources that have an optical axis at a position that is separated from the transmission axis of the visible light that is introduced into the first multiplexing unit are arranged so that the optical axis is inclined with respect to the transmission axis and the outer periphery of laser light that expands at a predetermined expansion angle passes in front of the first multiplexing unit.

Abstract: To provide a multiplexer that makes it possible to achieve a reduction in size and that minimizes the influence of the expansion of laser light on a multiplexing unit. A multiplexer is provided with a plurality of waveguides, multiplexing units that are provided at an intermediate location within the waveguides, and laser light sources, wherein: the first multiplexing unit is arranged at a position that is closest to the laser light sources; and the laser light sources that have an optical axis at a position that is separated from the transmission axis of the visible light that is introduced into the first multiplexing unit are arranged so that the optical axis is inclined with respect to the transmission axis and the outer periphery of laser light that expands at a predetermined expansion angle passes in front of the first multiplexing unit.

Abstract: A two-dimensional optical scanning mirror device, a manufacturing method for the same, a two-dimensional optical scanning device and an image projector. A two-dimensional optical scanning mirror device includes a substrate, a movable mirror portion supported on the substrate in such a manner that two-dimension optical scanning is possible, a hard magnetic thin film provided in the movable mirror portion and a magnetic field generator that includes at least an alternating magnetic field generator for driving the movable mirror portion, where the hard magnetic thin film has a magnetization direction in a direction of a film plane, and the ratio of the magnetic field generated by the magnetic field generator relative to the coercive force of the hard magnetic thin film is 0.2 or lower.