Abstract: A forklift includes: a fork 22, a moving mechanism configured to move the fork in a first direction; a laser sensor 20 mounted on the fork, configured to scan laser light in a second direction intersecting the first direction, and measure a distance from the laser sensor to a surrounding object based on reflection of the scanned laser light; and a processor configured to generate a three-dimensional range image within an emission range to which the laser light is emitted based on distance data acquired when the laser sensor scans the laser light in the second direction while the moving mechanism moves the fork in the first direction.

Abstract: A machining time prediction system divides a machining program to be executed by a machine tool into a plurality of sections, transfers the divided machining programs to arithmetic unit to calculate machining times and integrates the calculated machining times. Thus, when hardware resources of an arithmetic processing apparatus for calculating a machining time are lacking, it is possible to perform necessary calculations in cooperation with the other management apparatus or machine tool or the like, and thereby shorten a processing time.

Abstract: A forklift includes a vehicle body 30, a fork 22 mounted on the vehicle body, a controller configured to adjust a position and an orientation of the vehicle body, a laser sensor 20 configured to measure distance data from the laser sensor to an object existing in a space set forward of the fork, and a control commander configured to, when the distance data measured by the laser sensor includes a load or a pallet 100 to be lifted, generate track data for moving the vehicle body to a loading position of the load or the pallet based on the distance data, and provide a command to the controller using the generated track data.

Abstract: A mobile apparatus includes a main body, a range sensor, an operation device, and a mobile mechanism. The operation device includes a wide route data generation unit that generates a wide route data according to which the main body is moved from a first specified location to a second specified location, a determination unit that determines a location and a posture of a reference object, an approaching route data generation unit that generates an approaching route data according to which the main body is moved from the second specified location to a target location, and a route data switching unit that switches traveling route from the wide rote data to the approaching route data after the approaching route data is generated. The approaching route data generation unit generates the approaching route data while the main body is traveling according to the generated wide route data.

Abstract: A machining time prediction system divides a machining program to be executed by a machine tool into a plurality of sections, transfers the divided machining programs to arithmetic unit to calculate machining times and integrates the calculated machining times. Thus, when hardware resources of an arithmetic processing apparatus for calculating a machining time are lacking, it is possible to perform necessary calculations in cooperation with the other management apparatus or machine tool or the like, and thereby shorten a processing time.

Abstract: A forklift includes: a fork 22, a moving mechanism configured to move the fork in a first direction; a laser sensor 20 mounted on the fork, configured to scan laser light in a second direction intersecting the first direction, and measure a distance from the laser sensor to a surrounding object based on reflection of the scanned laser light; and a processor configured to generate a three-dimensional range image within an emission range to which the laser light is emitted based on distance data acquired when the laser sensor scans the laser light in the second direction while the moving mechanism moves the fork in the first direction.

Abstract: A forklift includes a vehicle body 30, a fork 22 mounted on the vehicle body, a controller configured to adjust a position and an orientation of the vehicle body, a laser sensor 20 configured to measure distance data from the laser sensor to an object existing in a space set forward of the fork, and a control commander configured to, when the distance data measured by the laser sensor includes a load or a pallet 100 to be lifted, generate track data for moving the vehicle body to a loading position of the load or the pallet based on the distance data, and provide a command to the controller using the generated track data.

Abstract: A mobile apparatus includes a main body, a range sensor, an operation device, and a mobile mechanism, The operation device includes a wide route data generation unit that generates a wide route data according to which the main body is moved from a first specified location to a second specified location, a determination unit that determines a location and a posture of a reference object, an approaching route data generation unit that generates an approaching route data according to which the main body is moved from the second specified location to a target location, and a route data switching unit that switches traveling route from the wide rote data to the approaching route data after the approaching route data is generated, The approaching route data generation unit generates the approaching route data while the main body is traveling according to the generated wide route data,

Abstract: A forklift capable of carrying a load placed on a pallet having two openings into which a fork of the forklift is inserted is provided. The forklift includes a sensor configured to irradiate laser light toward a predetermined space forward of the fork, and measure a distance from the sensor to an object located in the predetermined space based on reflected light of the laser light reflected by the object; and a processor configured to identify positions of sidewalls of the two openings of the pallet that is to be lifted based on distance data measured by the sensor, the processor being further configured to identify a center of a front surface of the pallet based on the positions of the sidewalls of the two openings.

Abstract: A membrane separation method is useful in purifying clear water, sewage, etc. and can reliably remove obstruction of an air diffusing apparatus by opening and closing valves, a submerged membrane separation apparatus to be used for the same, and a method for cleaning an air diffusing apparatus. The submerged membrane separation apparatus includes a separation membrane module, an air diffusing apparatus, and a gas supplying apparatus, wherein an air diffusing apparatus is arranged in one treatment tank, two header pipes (A and B) are placed as the gas supplying pipes, the connecting port a and the header pipe A and the connecting port b and the header pipe B for each of the air diffusing apparatuses are respectively connected, on-off valves are arranged in four parts, and the header pipes A and B each have an open end.

Abstract: A membrane separation method is useful in purifying clear water, sewage, etc. and can reliably remove obstruction of an air diffusing apparatus with a simple operation of only opening and closing a valve, a submerged membrane separation apparatus to be used for the same, and a method for cleaning an air diffusing apparatus. The submerged membrane separation apparatus includes a separation membrane module, an air diffusing apparatus, and a gas supplying apparatus, wherein an air diffusing apparatus is arranged in one treatment tank, two header pipes (A and B) are placed as the gas supplying pipes, the connecting port a and the header pipe A and the connecting port b and the header pipe B for each of the air diffusing apparatuses are respectively connected, on-off valves are arranged in four parts, and the end of downstream sides of the header pipes A and B are open to the atmosphere.

Abstract: A semiconductor laser device according to the present invention includes a mechanism section having a semiconductor laser, a first frame for holding the mechanism section and radiating heat generated in the mechanism section, a control section for controlling the mechanism section, a second frame for holding the control section and radiating heat generated in the control section, and a coupling section for insulatively coupling the first frame to the second frame.

Abstract: An optical disc apparatus is provided, which comprising a laser light emitting portion for generating laser light for irradiating an optical disc, and a laser control portion for controlling a light emission operation of the laser light emitting portion. The laser control portion causes the laser light emitting portion to emit light with a first period during a first operation, and the laser control portion causes the laser light emitting portion to emit light with a second period during a second operation. The first period and the second period are different from each other.

Abstract: A semiconductor laser device according to the present invention includes a mechanism section having a semiconductor laser, a first frame for holding the mechanism section and radiating heat generated in the mechanism section, a control section for controlling the mechanism section, a second frame for holding the control section and radiating heat generated in the control section, and a coupling section for insulatively coupling the first frame to the second frame.

Abstract: An optical disc apparatus is provided, which comprising a laser light emitting portion for generating laser light for irradiating an optical disc, and a laser control portion for controlling a light emission operation of the laser light emitting portion. The laser control portion causes the laser light emitting portion to emit light with a first period during a first operation, and the laser control portion causes the laser light emitting portion to emit light with a second period during a second operation. The first period and the second period are different from each other.

Abstract: The present invention provides a curable composition for use in optical fiber cladding comprising 48.8.about.92.9 wt % of 2-(perfluorooctyl) ethyl acrylate (I), 1.3.about.23.8 wt % of 2,2,3,3-tetrafluoroproprylacrylate (II), 5.0.about.30.0 wt % of trimethylolpropane triacrylate (III), and 0.1.about.5.0 wt % of photopolymerization initiator (IV), wherein the weight ratio [(I)/(II)] of monomer (I) and monomer (II) is within a range of from 75/25 to 98/2, and an optical fiber having cladding formed by the hardening of this curable composition and a core comprising quartz.

Abstract: This invention provides an erasable optical disk, on which information is recorded and reproduced repeatedly through the irradiation of laser beams, and an optical information recording/reproduction apparatus which records and reproduces information on the erasable optical disk. In erasing and then recording information on the erasable optical disk by using an erasing laser beam and a recording/reproduction laser beam, respectively, the tracking of both laser beams on the same track is detected so as to prevent erroneous erasing. The apparatus uses the optical disk having a mark signal disposed between a sector identifier and a data field, which mark signal is capable of determining the presence of the erasing laser beam on an adjacent track on the erasable optical disk, and the apparatus reproduces and detects the mark signal by using the erasing laser beam.

Abstract: A composite read-only and rewritable type optical disc, and a disc drive apparatus for reading/writing data into the disc. The optical disc has a plurality of sectors forming a data read-only area and a write/read area. The disc includes a recording film formed over its entire surface by which data can be recorded on the disc. Each area has track sectors each having a sector identifier portion in which address information is recorded and a data field portion to record data. Data-field identification flags indicative of the read-only area and the write/read area are recorded in the respective identifier portions. On reading or writing this optical disc, the data field identification flag is detected to identify the kind of related area, i.e., whether it is a read-only area or a write/read area. Thus, it is possible to avoid erroneous recording of data into the read-only area. Upon executing a reading operation, waveform equalization and binary-clipping level of reproduction signals can be well controlled.

Abstract: A read only optical disk is provided which includes (1) information sectors having recorded therein first encoded data obtained by encoding data by a first error detection/correction code to perform error detection and correction of the data and (2) check sectors each having recorded therein second encoded data obtained by encoding data among the first encoded data recorded in a plurality of selected information sectors by a second error detection/correction code. The second encoding by the second error detection/correction code is performed with respect to the data of the plurality of selected information sectors which are selected from respective tracks and are arranged sequentially at predetermined intervals in the circumferential direction on the tracks. As a result, in this read only optical disk, even when a two-dimensional defect (i.e.

Abstract: Directory data relating to user data are recorded in sectors of a checkerboard pattern or in sectors on every other track in a directory data area on an optical disk. The sectors which store the directory data are always flanked by adjacent virgin sectors in a direction normal to the tracks. Therefore, the latest directory data can be detected highly reliably without crosstalk noise from adjacent tracks. Alternatively, old directory data except the latest directory data are deleted or old directory data except the latest directory data and directory data in a predetermined number of sectors before the latest directory data are deleted, and the latest directory data can be detected highly reliably by detecting the deletion of the directory data.