Abstract: An optical scanning apparatus includes a first polarizing member and a second polarizing member between a light source and a MEMS mirror that is a deflection mirror. The first polarizing member reflects a first polarization component included in a beam light emitted from the light source so as to squarely enter the MEMS mirror and passes a second polarization component having a phase difference of a half-wavelength with respect to the first polarization component. The second polarizing member is provided between the first polarizing member and the MEMS mirror to pass the first polarization component reflected by the first polarizing member therethrough twice before and after being reflected by the MEMS mirror to change the first polarization component into the second polarization component. A rotation axis of the MEMS mirror is parallel to an optical axis of the beam light immediately before being reflected by the first polarizing member.

Abstract: An image processing apparatus includes a processor configured to: extract a first target image corresponding to a reading target having a glossy portion and a non-glossy portion from a first read image acquired by optically reading the reading target in a first reading environment, and extract a second target image corresponding to the reading target from a second read image acquired by optically reading the reading target in a second reading environment in which specular light acquired from the reading target by an image sensor is of higher intensity compared to the first reading environment; execute an alignment of the first target image and the second target image if positions of the first and second target images do not coincide with each other and if the first and second target images are alignable by translating or rotating at least one of the first target image or the second target image; and form a composite image by executing a composition process that composites a non-glossy region corresponding to

Abstract: A method of manufacturing an optical fiber with a hole from a preform having a through hole is disclosed. The manufacturing method includes placing a preform in a drawing furnace, forming an optical fiber by melting and drawing the preform in the drawing furnace while a gas is introduced into the through hole, capturing an image of the optical fiber drawn from the preform, and measuring a hole diameter of the optical fiber based on an image captured in the capturing of the image and controlling a pressure of the gas introduced into the through hole based on a measurement result. In the capturing of the image, when the optical fiber deviates, a predetermined countermeasure is taken to make the image clear, and the image is maintained in a clear state.

Abstract: A member for manufacturing a high-pressure tank liner is provided for producing a high-pressure tank liner with better welding quality between its liner halves than conventional products. The high-pressure tank liner is produced by welding together a pair of liner halves that have cylindrical bodies to be connected with each other on each joint portion having an opening at its one end. The member includes: the liner half; and a cap member that is easily attached to and removed from a communication tube of the liner half, which communication tube is formed on another end opposite to the joint portion between the liner halves and causes an inside and an outside of the high-pressure tank liner to communicate with each other.

Abstract: A high-pressure tank liner manufacturing device includes: a heater to heat and melt end surfaces of liner halves; a heater transportation mechanism configured to slidably move the heater between a waiting position for the heater and a heating position for the heater; an elevation mechanism (drive mechanism) configured to drive a pair of the liner halves so as to cause the pair of liner halves to be relatively moved closer to each other or away from each other; and a parallelism adjustment mechanism configured to adjust parallelism of the end surfaces of the liner halves in accordance with the heater being slidably moved.

Abstract: A high-pressure tank liner includes a body portion formed from a cylindrical body, a diameter-expanded part formed into a cylindrical body at the body portion with a larger diameter than an outside diameter of a general part of the body portion, and a staircase portion including stairs and formed at a stepped portion between the general part and the diameter-expanded part of the body portion. A distance from a corner on the diameter-expanded part side of the stepped portion to a peripheral surface of the general part while passing through a corner of each stair constituting the staircase portion is shorter than a lateral width of roving formed from reinforced fibers arranged in such a way as to extend in a circumferential direction of the body portion.

Abstract: An image reading device includes plural light sources that irradiate an image reading target with light at different angles; and a switching mechanism that sequentially switches the light incident to the image reading target from the plural light sources during an image reading operation on the image reading target.

Abstract: An image reading device includes a single light source that irradiates an image reading target with light, a traveling change member that changes a traveling direction of the light from the light source and irradiates the image reading target with the light at an incidence angle different from an incidence angle of the light directly applied from the light source to the image reading target, and a switching mechanism that switches traveling of the light from the light source to an optical path for directly irradiating the image reading target or an optical path for irradiating the image reading target via the traveling change member.

Abstract: An information processing apparatus includes a processor configured to acquire a plural pieces of image data generated by scanning a surface of an object at least two times while changing a light source, in a case where a result of collation of first image data generated by first scanning using a first light source with second image data generated by second scanning using a second light source different from the first light source is included within an allowable range, combine the first image data and the second image data, and in a case where the result of collation of the first image data with the second image data is not included within the allowable range, collate third image data generated by third scanning performed using the first light source with the second image data, and in a case where a result of the collation is included within the allowable range, combine the second image data and the third image data.

Abstract: A manufacturing method for a high-pressure tank liner achieves a good welding quality between a pair of liner halves without removing burrs in advance before welding together the liner halves, includes steps of: arranging the pair of liner halves to face each other; adjusting parallelism between end surfaces of the liner halves; and welding the end surfaces of the liner halves together to integrate them, wherein the step of adjusting the parallelism is performed by clamping the parallelism adjustment jig between the end surfaces of the liner halves while avoiding the burrs formed on the end surfaces of the liner halves.

Abstract: In the vicinity of an opening end of a first liner constituent member and a second liner constituent member made of a resin material, a flange portion is formed. After end surfaces of the opening end are abutted and joined to each other, the flange portion is removed in such a way that a part of a bottom portion remains. The remaining amount of protrusion is set such that the joint strength of a joint portion is not less than the tensile strength of the resin material or not less than the cohesion failure strength of the joint portion.

Abstract: A liner configuring member configuring a liner includes a main body section which is configured from a resin material and has both ends opened. That is, both ends of the main body section are, respectively, a first open end and a second open end. There is provided in a vicinity of the first open end a first flange section where a first annular recess is formed by a first bottom section and a first side section. On the other hand, there is provided in a vicinity of the second open end a second flange section where a second annular recess is formed by a second bottom section and a second side section.

Abstract: In the vicinity of an opening end of a first liner constituent member and a second liner constituent member made of a resin material, a flange portion is formed. After end surfaces of the opening end are abutted and joined to each other, the flange portion is removed in such a way that a part of a bottom portion remains. The remaining amount of protrusion is set such that the joint strength of a joint portion is not less than the tensile strength of the resin material or not less than the cohesion failure strength of the joint portion.

Abstract: A liner configuring member configuring a liner includes a main body section which is configured from a resin material and has both ends opened. That is, both ends of the main body section are, respectively, a first open end and a second open end. There is provided in a vicinity of the first open end a first flange section where a first annular recess is formed by a first bottom section and a first side section. On the other hand, there is provided in a vicinity of the second open end a second flange section where a second annular recess is formed by a second bottom section and a second side section.

Abstract: A cell voltage control unit is provided on a lower surface of a stack body of a fuel cell stack. The cell voltage control unit is connected to cell voltage terminals for monitoring cell voltage. A protection member is provided on a second end plate where the cell voltage control unit is provided. The protection member has protrusions protruding from both sides of the protection member in a horizontal direction, and a body portion having a vertically elongated shape so as to extend to a front face of the cell voltage control unit.

Abstract: A cell voltage control unit is provided on a lower surface of a stack body of a fuel cell stack. The cell voltage control unit is connected to cell voltage terminals for monitoring cell voltage. A protection member is provided on a second end plate where the cell voltage control unit is provided. The protection member has protrusions protruding from both sides of the protection member in a horizontal direction, and a body portion having a vertically elongated shape so as to extend to a front face of the cell voltage control unit.

Abstract: A fuel cell system mounted in a vehicle includes a fuel cell stack, a coolant supply mechanism, and a fuel gas supply mechanism. The coolant supply mechanism includes a coolant supply pipe and a coolant discharge pipe, provided on a front side in a traveling direction of the vehicle, relative to the fuel cell stack. The fuel gas supply mechanism includes a fuel gas supply pipe, provided on a rear side in the traveling direction, relative to the fuel cell stack.

Abstract: A fuel cell system mounted in a vehicle includes a fuel cell stack, a coolant supply mechanism, and a fuel gas supply mechanism. The coolant supply mechanism includes a coolant supply pipe and a coolant discharge pipe, provided on a front side in a traveling direction of the vehicle, relative to the fuel cell stack. The fuel gas supply mechanism includes a fuel gas supply pipe, provided on a rear side in the traveling direction, relative to the fuel cell stack.

Abstract: An electric turbo compressor is an air compressor to be used in a fuel cell system, and includes a housing comprised of a compression casing, a motor casing, and a canceller casing, and the housing houses therein an impeller, a rotary shaft, a thrust canceller (a load cancellation section), and a motor unit. The rotary shaft is supported by a thrust air bearing in its thrust direction, and is axially supported by a radial air bearing in its rotating direction. A thrust load is generated at the rotary shaft when the number of rotations of the impeller increases. The pressure of the compressed air acts to the pressure chamber from the compressed air lead-out section of the compression casing via the compressed air passage, and this pressure acts on the canceller flange of the canceller shaft so as to generate a load towards the rear of the rotary shaft. Therefore, the thrust load is cancelled out.

Abstract: An electric turbo compressor is an air compressor to be used in a fuel cell system, and includes a housing comprised of a compression casing, a motor casing, and a canceller casing, and the housing houses therein an impeller, a rotary shaft, a thrust canceller (a load cancellation section), and a motor unit. The rotary shaft is supported by a thrust air bearing in its thrust direction, and is axially supported by a radial air bearing in its rotating direction. A thrust load is generated at the rotary shaft when the number of rotations of the impeller increases. The pressure of the compressed air acts to the pressure chamber from the compressed air lead-out section of the compression casing via the compressed air passage, and this pressure acts on the canceller flange of the canceller shaft so as to generate a load towards the rear of the rotary shaft. Therefore, the thrust load is cancelled out.