Abstract: A recording medium according to one embodiment of the present disclosure includes a recording layer and an optical thin film. The recording layer includes a heat-sensitive color-developing composition and a photothermal conversion material. The photothermal conversion material absorbs a wavelength in an infrared region and generates heat. The optical thin film is provided on one surface of the recording layer. The optical thin film reflects the wavelength in the infrared region and transmits a wavelength in a visible region.

Abstract: Provided is an electronic device capable of reducing the possibility of malfunction. An electronic device is provided with: a first substrate including a drive circuit; a second substrate including a light-emitting unit driven by the drive circuit and mounted on one surface side of the first substrate; and a light-shielding unit provided on the first substrate and configured to shield at least a part of the drive circuit from light emitted by the light-emitting unit.

Abstract: To provide a semiconductor device regarding which filling material can be suitably filled in between substrates in a case of disposing a plurality of component parts of the semiconductor device between the substrates, and a manufacturing method of the same. A semiconductor device according to the present disclosure includes a first substrate, a plurality of protruding portions that protrude with respect to a first face of the first substrate, a plurality of types of insulating films that are provided at least between the protruding portions on the first face of the first substrate, a second substrate that is provided facing the first face of the first substrate, and a filling material that is provided between the first substrate and the second substrate, so as to come into contact with the plurality of types of insulating films.

Abstract: There is provided a stacked lens structure including a first lens substrate having a first through-hole and a second lens substrate having a second-through hole. The first lens substrate may be directly bonded to the second lens substrate. The stacked lens structure may include lens resin portions, where each lens resin portion includes a lens portion configured to refract light, and a support portion configured to support the lens portion at a corresponding lens substrate, the support portion including a first portion at a side of the lens substrate, a second portion, and a third portion, where the first portion is between the lens substrate and the second portion in a cross-section view, and the third portion is between the second portion and the lens portion in the cross-section view.

Abstract: A drawing method according to an embodiment of the present disclosure to be performed on a heat-sensitive recording medium including a recording layer, the recording layer containing a leuco dye and a photothermal conversion agent that absorbs infrared wavelength light, includes: performing drawing in a plurality of first regions, the plurality of first regions each extending in one direction and having gaps therebetween; and thereafter detecting recorded states of the plurality of first regions, calculating differences from the input image information, and performing drawing in a plurality of second regions at recording intensities determined on a basis of the differences, the plurality of second regions each extending in the one direction and being provided at the gaps between the plurality of first regions.

Abstract: A drawing and erasing apparatus includes a light source section that includes a plurality of laser elements different from each other in emission wavelength, a multiplexer that multiplexes a plurality of types of laser light beams outputted from the plurality of laser elements, a scanner section that performs scanning with multiplexed light outputted from the multiplexer on a reversible recording medium including a plurality of recording layers, the plurality of recording layers being reversible and different from each other in developed color hue, and a controller that controls a main scanning speed and a sub-scanning speed of the scanner section to cause the scanner section to perform overlapping scanning of a predetermined region on the reversible recording medium during erasure of information written on the reversible recording medium.

Abstract: A reversible recording medium according to an embodiment of the present disclosure is a reversible recording medium that includes recording layers and heat-insulating layers that are alternately stacked, in which the recording layers each include a reversible heat-sensitive color developing composition and a first light-heat converting agent. In this reversible recording medium, the recording layers are different from each other in a developing color of their respective reversible heat-sensitive color developing compositions and are different from each other in an absorption wavelength of their respective first light-heat converting agents. This reversible recording medium further includes a heat-generating layer that includes a second light-heat converting agent having an absorption wavelength that is different from the absorption wavelength of the first light-heat converting agent included in each of the recording layers.

Abstract: A laser device according to one embodiment of the present disclosure includes a light source and a reflection-type polarizer. The light source causes laser light to oscillate. The reflection-type polarizer is disposed on an optical path of the laser light and has a transmission axis coinciding with a polarization direction of the laser light.

Abstract: A drawing method according to an embodiment of the present disclosure to be performed on a heat-sensitive recording medium including a recording layer, the recording layer containing a leuco dye and a photothermal conversion agent that absorbs infrared wavelength light, includes: performing drawing in a plurality of first regions, the plurality of first regions each extending in one direction and having gaps therebetween; and thereafter detecting recorded states of the plurality of first regions, calculating differences from the input image information, and performing drawing in a plurality of second regions at recording intensities determined on a basis of the differences, the plurality of second regions each extending in the one direction and being provided at the gaps between the plurality of first regions.

Abstract: In a drawing method according to an embodiment of the present disclosure, when performing drawing on a thermal recording medium that includes, above a recording layer, a light-transmitting member having an uneven shape in a plane, an optical compensator having one surface and another surface is provided on the light-transmitting member to cause the one surface and the light-transmitting member to face each other, and the thermal recording medium is irradiated with a laser beam via the optical compensator. The one surface of the optical compensator has a shape that fits the uneven shape of the light-transmitting member, and the other surface is flat and opposed to the one surface.

Abstract: An erasing unit according to an embodiment of the present disclosure is a unit that performs erasing of information written on a reversible recording medium. This erasing unit includes: a light source section including one or a plurality of laser devices; and a controller that controls the light source section to cause the light source section to emit a smaller number of laser light beams having emission wavelengths than the number of the recording layers included in the reversible recording medium.

Abstract: A drawing and erasing apparatus includes a light source section that includes a plurality of laser elements different from each other in emission wavelength, a multiplexer that multiplexes a plurality of types of laser light beams outputted from the plurality of laser elements, a scanner section that performs scanning with multiplexed light outputted from the multiplexer on a reversible recording medium including a plurality of recording layers, the plurality of recording layers being reversible and different from each other in developed color hue, and a controller that controls a main scanning speed and a sub-scanning speed of the scanner section to cause the scanner section to perform overlapping scanning of a predetermined region on the reversible recording medium during erasure of information written on the reversible recording medium.

Abstract: A reversible recording medium according to an embodiment of the present disclosure is a reversible recording medium that includes recording layers and heat-insulating layers that are alternately stacked, in which the recording layers each include a reversible heat-sensitive color developing composition and a first light-heat converting agent. In this reversible recording medium, the recording layers are different from each other in a developing color of their respective reversible heat-sensitive color developing compositions and are different from each other in an absorption wavelength of their respective first light-heat converting agents. This reversible recording medium further includes a heat-generating layer that includes a second light-heat converting agent having an absorption wavelength that is different from the absorption wavelength of the first light-heat converting agent included in each of the recording layers.

Abstract: A recording medium according to one embodiment of the present disclosure includes a recording layer and an optical thin film. The recording layer includes a heat-sensitive color-developing composition and a photothermal conversion material. The photothermal conversion material absorbs a wavelength in an infrared region and generates heat. The optical thin film is provided on one surface of the recording layer. The optical thin film reflects the wavelength in the infrared region and transmits a wavelength in a visible region.

Abstract: A reversible recording medium according to an embodiment of the present disclosure is a reversible recording medium that includes recording layers and heat-insulating layers that are alternately stacked, in which the recording layers each include a reversible heat-sensitive color developing composition and a first light-heat converting agent. In this reversible recording medium, the recording layers are different from each other in a developing color of their respective reversible heat-sensitive color developing compositions and are different from each other in an absorption wavelength of their respective first light-heat converting agents. This reversible recording medium further includes a heat-generating layer that includes a second light-heat converting agent having an absorption wavelength that is different from the absorption wavelength of the first light-heat converting agent included in each of the recording layers.

Abstract: A laser device according to one embodiment of the present disclosure includes a light source and a reflection-type polarizer. The light source causes laser light to oscillate. The reflection-type polarizer is disposed on an optical path of the laser light and has a transmission axis coinciding with a polarization direction of the laser light.

Abstract: An erasing unit according to an embodiment of the present disclosure is a unit that performs erasing of information written on a reversible recording medium. This erasing unit includes: a light source section including one or a plurality of laser devices; and a controller that controls the light source section to cause the light source section to emit a smaller number of laser light beams having emission wavelengths than the number of the recording layers included in the reversible recording medium.

Abstract: A reversible recording medium according to an embodiment of the present disclosure is a reversible recording medium that includes recording layers and heat-insulating layers that are alternately stacked, in which the recording layers each include a reversible heat-sensitive color developing composition and a first light-heat converting agent. In this reversible recording medium, the recording layers are different from each other in a developing color of their respective reversible heat-sensitive color developing compositions and are different from each other in an absorption wavelength of their respective first light-heat converting agents. This reversible recording medium further includes a heat-generating layer that includes a second light-heat converting agent having an absorption wavelength that is different from the absorption wavelength of the first light-heat converting agent included in each of the recording layers.

Abstract: There is provided a stacked lens structure including a first lens substrate having a first through-hole and a second lens substrate having a second-through hole. The first lens substrate may be directly bonded to the second lens substrate. The stacked lens structure may include lens resin portions, where each lens resin portion includes a lens portion configured to refract light, and a support portion configured to support the lens portion at a corresponding lens substrate, the support portion including a first portion at a side of the lens substrate, a second portion, and a third portion, where the first portion is between the lens substrate and the second portion in a cross-section view, and the third portion is between the second portion and the lens portion in the cross-section view.

Abstract: A phase difference element capable of decreasing deterioration of 3D characteristics and a display unit including the phase difference element are provided. The phase difference element includes a phase difference film, and an anti-glare film. The phase difference film has a phase difference layer composed of two or more phase difference regions each having different direction of a slow axis that are regularly arranged in a plane. Retardation of the anti-glare film is 20 nm or less and total haze of the anti-glare film is 30% or less.