Abstract: An asphalt finisher includes a tractor, a hopper provided on a front side of the tractor and configured to receive a pavement material, a conveyor configured to supply the pavement material in the hopper to a rear side of the tractor, a screw configured to place and spread the pavement material supplied by the conveyor on a rear side of the tractor, a screed configured to lay and spread the pavement material placed and spread by the screw on a rear side of the screw, and a distance measuring device configured to include a region including a road surface placed and spread by the screed, and a planimetric feature that is used as a reference for a height of the road surface, within a measuring range.

Abstract: A display unit for a road machine includes a display and processing circuitry. The road machine includes a tractor, a hopper installed in front of the tractor to receive a paving material, a conveyor configured to feed the paving material in the hopper to the back side of the tractor, a screw configured to lay and spread the paving material fed by the conveyor behind the tractor, a screed configured to lay and level the paving material laid and spread by the screw behind the screw, and an information obtaining device configured to obtain information on road pavement. The processing circuitry of the display unit is configured to predict a future event based on the information on the road pavement obtained by the information obtaining device, and to display information on the event on a road map on the display.

Abstract: An asphalt finisher includes a tractor, a hopper provided on a front side of the tractor and configured to receive a pavement material, a conveyor configured to supply the pavement material in the hopper to a rear side of the tractor, a screw configured to place and spread the pavement material supplied by the conveyor on a rear side of the tractor, a screed configured to lay and spread the pavement material placed and spread by the screw on a rear side of the screw, and a distance measuring device configured to include a region including a road surface placed and spread by the screed, and a planimetric feature that is used as a reference for a height of the road surface, within a measuring range.

Abstract: A road machine includes a hopper, a screed, a measuring unit configured to measure an amount of pavement material inside the hopper or pavement material held in front of the screed, and a display device disposed in an operator's seat and configured to display the amount of pavement material measured by the measuring unit.

Abstract: An illumination device that can obtain high withstanding voltage performance while making heat transfer to a casing from a light-emitting element favorable is provided. In a sports illumination device including a COB type LED as a light source in a casing, a base plate that has the COB type LED mounted thereon and is formed from a high thermoconductive material, to which heat of the COB type LED is transferred, is included, the casing is provided with an engaging hole with which the base plate is engaged in a state in which a part of the base plate is exposed outside the casing, and an insulation packing is provided at a site of contact of the base plate and the engaging hole in the casing.

Abstract: An object is to provide an LED module that eliminates the need for providing electrodes between each device and allows LEDs to be arrayed with high density. An LED module includes a substrate, a first frame member, a second frame member disposed outside the first frame member, a plurality of LEDs for producing white light disposed within the first frame member, a phosphor resin disposed within the first frame member, a plurality of LEDs for producing colored light disposed between the first frame member and the second frame member, and electrodes for applying a voltage to the plurality of LEDs for producing the white light, wherein a metal wire to connect the plurality of LEDs for producing the colored light to one another is disposed so as to straddle a part of each of the electrodes.

Abstract: An illumination device that can obtain high withstanding voltage performance while making heat transfer to a casing from a light-emitting element favorable is provided. In a sports illumination device including a COB type LED as a light source in a casing, a base plate that has the COB type LED mounted thereon and is formed from a high thermoconductive material, to which heat of the COB type LED is transferred, is included, the casing is provided with an engaging hole with which the base plate is engaged in a state in which a part of the base plate is exposed outside the casing, and an insulation packing is provided at a site of contact of the base plate and the engaging hole in the casing.

Abstract: An object is to provide an LED module that eliminates the need for providing electrodes between each device and allows LEDs to be arrayed with high density. An LED module includes a substrate, a first frame member, a second frame member disposed outside the first frame member, a plurality of LEDs for producing white light disposed within the first frame member, a phosphor resin disposed within the first frame member, a plurality of LEDs for producing colored light disposed between the first frame member and the second frame member, and electrodes for applying a voltage to the plurality of LEDs for producing the white light, wherein a metal wire to connect the plurality of LEDs for producing the colored light to one another is disposed so as to straddle a part of each of the electrodes.

Abstract: A lamp achieves high output power like an HID lamp by using a light emitting element(s) as a light source. A mount board having LED mounted thereon is provided on the surface of a base member, and there are provided plural flat plate type light source units arranged around an axial line while the back surfaces thereof faces inwards, and a support member provided on the axial line. The plural light source units are supported on the support member, and a space through which air flows is provided at the back surface side of each base member.

Abstract: A lamp achieves high output power like an HID lamp by using a light emitting element(s) as a light source. A mount board having LED mounted thereon is provided on the surface of a base member, and there are provided plural flat plate type light source units arranged around an axial line while the back surfaces thereof faces inwards, and a support member provided on the axial line. The plural light source units are supported on the support member, and a space through which air flows is provided at the back surface side of each base member.

Abstract: A lamp achieves high output power like an HID lamp by using a light emitting element(s) as a light source. A mount board having LED mounted thereon is provided on the surface of a base member, and there are provided plural flat plate type light source units arranged around an axial line while the back surfaces thereof faces inwards, and a support member provided on the axial line. The plural light source units are supported on the support member, and a space through which air flows is provided at the back surface side of each base member.

Abstract: A lamp achieves high output power like an HID lamp by using a light emitting element(s) as a light source. A mount board having LED mounted thereon is provided on the surface of a base member, and there are provided plural flat plate type light source units arranged around an axial line while the back surfaces thereof faces inwards, and a support member provided on the axial line. The plural light source units are supported on the support member, and a space through which air flows is provided at the back surface side of each base member.

Abstract: Provided is an optical disc apparatus including: a recording unit configured to record data on an optical disc with laser lights of recoding powers set for first and second layers thereof; and a control unit configured to record/reproduce test data on/from these layers, determine first and second optimum recording powers for these layers, and set the determined first and second optimum recording powers in the recording unit, wherein the control unit changes the recording power across a predetermined search width, centering on a first recommended value for the first layer to determine the first optimum recording power, and corrects a second recommended value for the second layer on the basis of the first recommended value and the first optimum recording power and changes the recording power across the search width, centering on the corrected second recommended value to determine the second optimum recording power.

Abstract: A recording power determining method comprises writing data consecutively into a plurality of test blocks of an optical disc while changing recording power in such a manner that the arrangement of recording power values is distributed over the arrangement of the test blocks, reproducing the information recorded in the test blocks written into consecutively, determining an asymmetry value for each of the recording power values on the basis of the information in each of the test blocks reproduced, determining an approximation characteristic of the asymmetry value for a recording power on the basis of the asymmetry value for each of the recording power values, and determining a recording power for realizing a specific target value of the asymmetry value from the obtained approximation characteristic.

Abstract: Provided is an optical disc apparatus including: a recording unit configured to record data on an optical disc with laser lights of recoding powers set for first and second layers thereof; and a control unit configured to record/reproduce test data on/from these layers, determine first and second optimum recording powers for these layers, and set the determined first and second optimum recording powers in the recording unit, wherein the control unit changes the recording power across a predetermined search width, centering on a first recommended value for the first layer to determine the first optimum recording power, and corrects a second recommended value for the second layer on the basis of the first recommended value and the first optimum recording power and changes the recording power across the search width, centering on the corrected second recommended value to determine the second optimum recording power.

Abstract: Provided is an optical disc apparatus including: an optical pickup configured to form marks and spaces on the optical disc by using a recording power and a erasing power respectively; a control unit configured to write test data on trial on the optical disc while changing the recording power and the erasing power and to determine an optimum recording power and an optimum erasing power; and a nonvolatile memory configured to store a correction coefficient which has been obtained in advance. The control unit corrects a power ratio of a recommended recording power to a recommended erasing power by the correction coefficient stored in the memory, and controls to write the test data on trial on the optical disc while changing the recording power and a erasing power, the erasing power being acquired from the recording power and the corrected power ratio.

Abstract: According to one embodiment, the invention provides an optical disk device having an irradiation section which applies a laser beam to an optical disk, a detection section which receives a reflected light emitted from the irradiation section and reflected from the optical disk to output a detection signal, and a discrimination section which performs focus search using the irradiation section and the detection section and determines whether the optical disk is a triple layer optical disk on the basis of the detection signal upon performing focus search.

Abstract: According to one embodiment, an optical disc apparatus includes a calculation unit that calculates a tilt of a disc, a determining unit that determines whether or not the tilt of the disc calculated by the calculation unit is larger than a preset predetermined reference value, and a correction unit that corrects the tilt of the disc calculated by the calculation unit.

Abstract: According to one embodiment, here is provided an optical disk apparatus including: a reading unit configured to read an address corresponding to a position of beam spot; a calculating unit configured to calculate, from the address corresponding to the position of beam spot, a seeking amount in making an access to a burst cutting area formed on a disk; and a movement unit configured to move the position of beam spot in accordance with the seeking amount calculated by the calculating unit.

Abstract: There is provided construction machinery for switchably controlling rotational speed between a normal and an energy saving mode. Change in workload is detected by means except for change in pressure of a main circuit. It is more convenient to use the machinery in the energy saving mode, increasing opportunities for use in the energy saving mode to suppress fuel consumption and noise.