Abstract: A method of manufacturing a diamond substrate includes: a step of placing a laser condensing unit 190 configured to condense laser light B so as to face an upper surface 10a of a block 10 of single crystal diamond; and a step of forming a modified layer 20, which includes a processing mark 21b of graphite and a crack 22b extending along a surface (111) around the processing mark 21b, along the surface (111) of the single crystal diamond at a predetermined depth from an upper surface of the block by radiating the laser light B on the upper surface 10a of the block 10 from the laser condensing unit 190 under predetermined conditions and condensing the laser light B inside the block 10, and moving the laser condensing unit 190 and the block 10 in a relative manner two-dimensionally.

Abstract: A method of manufacturing a diamond substrate includes: a step of placing a laser condensing unit 190 configured to condense laser light B so as to face an upper surface 10a of a block 10 of single crystal diamond, a step of forming a modified layer 20, which includes a processing mark 21 of graphite and a crack 22b extending along a surface (111) around the processing mark 21, in a partial region of the upper surface 10a of the block 10 along the surface (111) of the single crystal diamond, along the surface (111) of the single crystal diamond at a predetermined depth from the upper surface 10a of the block 10 by radiating the laser light B on the upper surface 10a of the block 10 from the laser condensing unit 190 under predetermined conditions and condensing the laser light B inside the block 10, and moving the laser condensing unit 190 and the block 10 in a relative manner two-dimensionally, and a step of forming a cleavage plane 25 at the predetermined depth of the remaining region of the upper surface 1

Abstract: A scaffold provided with a running board part and a reinforcing member which is attached to at least one end of the running board part in the width direction of the running board part. The reinforcing member has a pair of extension parts which extend in the longitudinal direction of the running board and which are disposed apart from each other in the vertical direction, and a plurality of connecting parts which are disposed at intervals in the longitudinal direction and which connect the pair of extension parts.

Abstract: A method of manufacturing a diamond substrate includes: a step of placing a laser condensing unit 190 configured to condense laser light B so as to face an upper surface 10a of a block 10 of single crystal diamond; and a step of forming a modified layer 20, which includes a processing mark 21b of graphite and a crack 22b extending along a surface (111) around the processing mark 21b, along the surface (111) of the single crystal diamond at a predetermined depth from an upper surface of the block by radiating the laser light B on the upper surface 10a of the block 10 from the laser condensing unit 190 under predetermined conditions and condensing the laser light B inside the block 10, and moving the laser condensing unit 190 and the block 10 in a relative manner two-dimensionally.

Abstract: A method of manufacturing a diamond substrate includes: a step of placing a laser condensing unit 190 configured to condense laser light B so as to face an upper surface 10a of a block 10 of single crystal diamond, a step of forming a modified layer 20, which includes a processing mark 21 of graphite and a crack 22b extending along a surface (111) around the processing mark 21, in a partial region of the upper surface 10a of the block 10 along the surface (111) of the single crystal diamond, along the surface (111) of the single crystal diamond at a predetermined depth from the upper surface 10a of the block 10 by radiating the laser light B on the upper surface 10a of the block 10 from the laser condensing unit 190 under predetermined conditions and condensing the laser light B inside the block 10, and moving the laser condensing unit 190 and the block 10 in a relative manner two-dimensionally, and a step of forming a cleavage plane 25 at the predetermined depth of the remaining region of the upper surface 1

Abstract: A method for manufacturing a peeled substrate has a laser condensing step for focusing laser light at a prescribed depth from the surface of a substrate and a positioning step for moving and positioning a laser condenser relative to the substrate, the method involving forming a processed layer in the substrate. The laser condensing step includes a laser light adjustment step in which a diffraction optical element is used to branch the laser light into a plurality of branched laser beams, and at least one of the branched laser beams is branched such that the intensity thereof differs from the other branched laser beams. The processed layer is elongated using the branched laser beam having a relatively high intensity among the plurality of branched laser beams to process the substrate, and the elongation of the processed layer is restrained using the branched laser beams having a relatively low intensity.

Abstract: An etching method for etching a substrate using a molten alkali, wherein, while an oxide coating is formed on the surface of the substrate PL to be etched in a high-temperature oxygen-containing environment, the surface to be etched is isotropically etched to remove the oxide coating using a molten alkali AL brought into a prescribed high-temperature range.

Abstract: A substrate manufacturing method capable of easily obtaining a thin magnesium oxide single crystal substrate is provided. A first step is performed which disposes a condenser for condensing a laser beam on an irradiated surface of a magnesium oxide single crystal member in a non-contact manner. A second step is performed which forms processing mark lines in parallel by irradiating the laser beam to the surface of the single crystal substrate under designated irradiation conditions to condense the laser beam into an inner portion of the single crystal substrate while moving the condenser and the single crystal substrate relative to each other in a two-dimensional manner.

Abstract: An etching method in which: molten sodium hydroxide in a prescribed temperature range is used as a molten alkali, whereby an Si surface of an etching surface of an SiC substrate, in which the substrate surface is configured from the Si surface and a C surface, is removed at a higher speed than is the C surface while an oxide film is formed on the etching surface in a high-temperature environment containing oxygen.

Abstract: An etching method for etching a substrate using a molten alkali, wherein, while an oxide coating is formed on the surface of the substrate PL to be etched in a high-temperature oxygen-containing environment, the surface to be etched is isotropically etched to remove the oxide coating using a molten alkali AL brought into a prescribed high-temperature range.

Abstract: A substrate manufacturing method includes: a first step of disposing a condenser for condensing a laser beam in a non-contact manner on a surface 20r of a magnesium oxide single crystal substrate 20 to be irradiated; and a second step of irradiating a laser beam to a surface of the magnesium oxide single crystal substrate 20 and condensing the laser beam into an inner portion of the single crystal member under designated irradiation conditions using the condenser, and at a same time, two-dimensionally moving the condenser and the magnesium oxide single crystal substrate 20 relatively to each other, and sequentially forming processing marks to sequentially allow planar peeling.

Abstract: A method for manufacturing a peeled substrate has a laser condensing step for focusing laser light at a prescribed depth from the surface of a substrate and a positioning step for moving and positioning a laser condenser relative to the substrate, the method involving forming a processed layer in the substrate. The laser condensing step includes a laser light adjustment step in which a diffraction optical element is used to branch the laser light into a plurality of branched laser beams, and at least one of the branched laser beams is branched such that the intensity thereof differs from the other branched laser beams. The processed layer is elongated using the branched laser beam having a relatively high intensity among the plurality of branched laser beams to process the substrate, and the elongation of the processed layer is restrained using the branched laser beams having a relatively low intensity.

Abstract: An etching method in which: molten sodium hydroxide in a prescribed temperature range is used as a molten alkali, whereby an Si surface of an etching surface of an SiC substrate, in which the substrate surface is configured from the Si surface and a C surface, is removed at a higher speed than is the C surface while an oxide film is formed on the etching surface in a high-temperature environment containing oxygen.

Abstract: A technology of preventing feeling of a viewer on brightness from significantly changing when content is switched is provided. A video display device (1) includes a calculation unit (23) that calculates video feature relating to a display video, and a mute video display unit that displays a mute video posterior to a first display video, in which luminance of the mute video is luminance corresponding to a value of the video feature relating to the first display video.

Abstract: A video signal conversion device is realized in which even in a case where an HDR video signal following a first video format is converted into a HDR video signal following a second video format, supplementary information related to the HDR video signal following the original first video format is not lost. The video signal conversion device (1 or 40) includes: a conversion unit (5) that converts the high dynamic range video signal following the first video format into the high dynamic range video signal following the second video format; and an output unit (12) that outputs the supplementary information which is related to the high dynamic range video signal following the first video format.

Abstract: A technology of preventing feeling of a viewer on brightness from significantly changing when content is switched is provided. A transmitting device (1) includes a calculation unit (12) that calculates a video feature of a transmission video signal, and a mute video generation unit (13) that generates a mute video posterior to a first video signal, in which luminance of the mute video is luminance corresponding to a value of a video feature relating to the first video signal.

Abstract: A substrate manufacturing method capable of easily obtaining a thin magnesium oxide single crystal substrate is provided. A first step is performed which disposes a condenser for condensing a laser beam on an irradiated surface of a magnesium oxide single crystal member in a non-contact manner. A second step is performed which forms processing mark lines in parallel by irradiating the laser beam to the surface of the single crystal substrate under designated irradiation conditions to condense the laser beam into an inner portion of the single crystal substrate while moving the condenser and the single crystal substrate relative to each other in a two-dimensional manner.

Abstract: A reception device detects whether or not there has been updating of configuration information including correlation information correlated with audio data provided in a program from reception signals received in a broadcast, selects one of a plurality of audio data in accordance with operating input, and includes a decoding unit that decodes audio data that the selecting unit has selected. When the configuration information is updated, the selecting unit selects, out of correlation information included in the configuration information that has been updated, audio data corresponding to correlation information including a predetermined element that is the same as correlation information corresponding to audio data selected before updating.

Abstract: A substrate manufacturing method capable of easily obtaining a thin magnesium oxide single crystal substrate is provided. Performed is a first step of disposing a laser condensing means on a surface of a magnesium oxide single crystal substrate (20) of magnesium oxide to be irradiated in a non-contact manner, the laser condensing means being for condensing a laser beam. Then, a second step of causing planar peeling from a surface side of the magnesium oxide single crystal substrate (20) to be irradiated is performed. In this second step, a laser beam (B) is irradiated to the surface of the single crystal substrate (20) and the laser beam (B) is condensed into an inner portion of the single crystal substrate (20) under designated irradiation conditions. Simultaneously with the irradiation and the condensation, the laser condensing means (14) and the single crystal substrate (20) are two-dimensionally moved relatively to each other.

Abstract: A technique for preventing a significant change of viewer's perception of brightness for each content. An image processing device (1) includes a calculation unit (6) configured to calculate a video feature from a parameter in a video signal for transmission and an adjustment unit (8) configured to adjust the parameter such that the video feature calculated by the calculation unit is approximated to a prescribed reference value.