Abstract: An image reading device including: concave first lens mirrors that are arranged in an array shape along a main scanning direction and that collimate scattered light reflected by an irradiated object and reflect the scattered light as a substantially parallel bundle of rays that are angled in a sub-scanning direction; planar mirrors that reflect light from the first lens mirrors; apertures that are arranged in an array shape and that allow light from the planar mirrors to pass through by way of openings that are arranged in an array shape and that are light-shielded therearound for selectively allowing light to pass through; concave second lens mirrors that are arranged in an array shape into which light from the apertures is incident and that reflect the light from the apertures as converged light; and light receivers that have light receiving areas on which light from the second lens mirrors is incident and that form images that correspond to light from the openings.

Abstract: A lighting unit is provided with: LED arrays in which light-emitting elements are positioned in an array in a main scanning direction; cylindrical parabolic mirrors that project light emitted from the LED arrays on an illumination region of an illuminated item; and a housing that houses or holds the LED arrays and the cylindrical parabolic mirrors. Each cylindrical parabolic mirror forms a shape in which a cylindrical paraboloid having curvature with respect to a sub-scanning direction has been clipped by an axial plane that is perpendicular to the vertex of the cylindrical paraboloid in the main scanning direction. The LED arrays are positioned so as to include the focal position of the cylindrical paraboloid in the light-emitting region, the central axis in the light-emitting direction being perpendicular to the axial plane.

Abstract: A lighting unit includes LED chips positioned in an array form in a main scanning direction on LED substrates. Cylindrical parabolic mirrors each form a shape in which a cylindrical paraboloid having curvature with respect to an sub-scanning direction has been clipped by an axial plane that is perpendicular to the vertex of the cylindrical paraboloid in the main scanning direction, and project light emitted from the light source on an illumination area of an illuminated item. Each cylindrical parabolic mirror includes an anchoring section that is provided at the vertex of the cylindrical paraboloid, and extends from the vertex in an outside direction of the cylindrical paraboloid. Heat-radiating plates each have a contact section that is in contact with the LED substrate, and a non-contact section. Each LED substrate is interposed between the contact section of the heat-radiating plate and the anchoring section of the cylindrical parabolic mirror.

Abstract: A lighting unit includes LED chips positioned in an array form in a main scanning direction on LED substrates. Cylindrical parabolic mirrors each form a shape in which a cylindrical paraboloid having curvature with respect to an sub-scanning direction has been clipped by an axial plane that is perpendicular to the vertex of the cylindrical paraboloid in the main scanning direction, and project light emitted from the light source on an illumination area of an illuminated item. Each cylindrical parabolic mirror includes an anchoring section that is provided at the vertex of the cylindrical paraboloid, and extends from the vertex in an outside direction of the cylindrical paraboloid. Heat-radiating plates each have a contact section that is in contact with the LED substrate, and a non-contact section. Each LED substrate is interposed between the contact section of the heat-radiating plate and the anchoring section of the cylindrical parabolic mirror.

Abstract: A lighting unit is provided with: LED arrays in which light-emitting elements are positioned in an array in a main scanning direction; cylindrical parabolic mirrors that project light emitted from the LED arrays on an illumination region of an illuminated item; and a housing that houses or holds the LED arrays and the cylindrical parabolic mirrors. Each cylindrical parabolic mirror forms a shape in which a cylindrical paraboloid having curvature with respect to a sub-scanning direction has been clipped by an axial plane that is perpendicular to the vertex of the cylindrical paraboloid in the main scanning direction. The LED arrays are positioned so as to include the focal position of the cylindrical paraboloid in the light-emitting region, the central axis in the light-emitting direction being perpendicular to the axial plane.

Abstract: An image reading device including: concave first lens mirrors that are arranged in an array shape along a main scanning direction and that collimate scattered light reflected by an irradiated object and reflect the scattered light as a substantially parallel bundle of rays that are angled in a sub-scanning direction; planar mirrors that reflect light from the first lens mirrors; apertures that are arranged in an array shape and that allow light from the planar mirrors to pass through by way of openings that are arranged in an array shape and that are light-shielded therearound for selectively allowing light to pass through; concave second lens mirrors that are arranged in an array shape into which light from the apertures is incident and that reflect the light from the apertures as converged light; and light receivers that have light receiving areas on which light from the second lens mirrors is incident and that form images that correspond to light from the openings.

Abstract: To provide a conveying unit that holds a workpiece and conveys the workpiece at a constant rate in one direction, a laser oscillator that emits a pulsed laser beam, a splitter that splits a pulsed laser beam into a pattern having a predetermined geometric pitch, a first deflector that scans the split pulsed laser beam in the other direction substantially orthogonal to the one direction, a second deflector that adjusts and deflects the split pulsed laser beam deflected by the first deflector on the surface to be processed in the one direction so as to scan the resultant pulsed laser beam onto the surface to be processed at a constant rate equal to a rate at which the workpiece is conveyed, and a condenser that condenses the split pulsed laser beam deflected by the second deflector onto the surface to be processed.

Abstract: The object of the present invention is to provide an image reading apparatus having a large depth of field and being compact in size. The image reading apparatus includes a light source, an imaging optics system, an image pickup device unit, a memory, and a processor. The imaging optics system has a plurality of cells each being an independent optics system arranged in a main scanning direction, and arranged in two rows in a sub-scanning direction. In each of the cells, a first reflective light-gathering optical element, a first plane mirror, an aperture, and a second reflective light-gathering optical element are arranged in this order from a document, and the aperture is arranged at the back focal point position of the first reflective light-gathering optical element to form a telecentric optics system at the side of the document.

Abstract: An image-scanning device wherein plural images of an object are picked up inverted and reduced in size by image-forming optical systems arranged to be adjacent to each other, and then restored by an image processing system. Each optical system includes a first optical element having a first focal length; an aperture member located at a focus position in a rear side of the first optical element; and a second optical element provided in a rear side of the aperture member and having a second focal length shorter than the first focal length, respectively disposed from a side of the object being picked up to a side of the image pickup device. In between optical systems, corresponding image pick up devices thereof are arranged to be adjacent to each other, the image pickup devices including a region in which the images picked up by the image pickup devices are overlapped.

Abstract: The object of the present invention is to provide an image reading apparatus having a large depth of field and being compact in size. The image reading apparatus includes a light source, an imaging optics system, an image pickup device unit, a memory, and a processor. The imaging optics system has a plurality of cells each being an independent optics system arranged in a main scanning direction, and arranged in two rows in a sub-scanning direction. In each of the cells, a first reflective light-gathering optical element, a first plane mirror, an aperture, and a second reflective light-gathering optical element are arranged in this order from a document, and the aperture is arranged at the back focal point position of the first reflective light-gathering optical element to form a telecentric optics system at the side of the document.

Abstract: In order to form a texture structure of inverse pyramid concavities with high speed and accuracy, when a reflection preventing texture is formed on a surface of a photovoltaic power device by laser patterning of an etching resistance film and wet etching, a plurality of laser apertures are machined in a diagonal direction of a square to be a base of the intended pyramid concavity by using a pulse laser and a laser beam splitting means, and a laser aperture pitch between the squares is set to be larger than a pitch on the diagonal.

Abstract: An image reading apparatus includes a light source, an imaging optics system, an image pickup device unit, a memory, and a processor. The imaging optics system condenses scattered light reflected on an object to be imaged to form condensed light as an image. The imaging optics system includes plural cells arranged in a main scanning direction and each of which is an independent imaging optics system. Each of the cells includes a telecentric optics system at the document side. Two rows of cells are arranged in a sub-scanning direction. The cells in the rows are arranged zigzag in the main scanning direction to complement a formed image by the cells in the sub-scanning direction. The image pickup device unit is arranged to correspond to each cell. The processor can form a document image by reconstructing and combining image information stored in the memory into an image.

Abstract: A laser machining method and apparatus that allow accurate and fine scribing without the need of a large-scale dust collector and a large quantity of cleaning fluid when a thin film on a substrate is scribed by a laser beam. A laser beam from a laser beam source is focused by a lens, introduced into a window of piping and propagated through cleaning fluid, and the thin film is illuminated with the laser beam from the nozzle. Concurrently with this beam illumination, a jet of the cleaning fluid supplied using a fluid flow controller is discharged from the nozzle that is disposed about substantially the optical axis of the focused laser beam and sized in inside diameter such that the focused laser beam does not make a contact with the nozzle. By these processes, laser-scribing is performed.

Abstract: To provide a conveying unit that holds a workpiece and conveys the workpiece at a constant rate in one direction, a laser oscillator that emits a pulsed laser beam, a splitter that splits a pulsed laser beam into a pattern having a predetermined geometric pitch, a first deflector that scans the split pulsed laser beam in the other direction substantially orthogonal to the one direction, a second deflector that adjusts and deflects the split pulsed laser beam deflected by the first deflector on the surface to be processed in the one direction so as to scan the resultant pulsed laser beam onto the surface to be processed at a constant rate equal to a rate at which the workpiece is conveyed, and a condenser that condenses the split pulsed laser beam deflected by the second deflector onto the surface to be processed.

Abstract: An image reading apparatus includes an illuminating optical system having light sources arranged in a line and a light guide member guiding rays of light from the light sources to illuminate a document which passes through a document reading position near a light emergent surface of the light guide member. An image reading optical system includes a rod lens array to read light passing through the document, and a cylindrical lens array in the light emergent surface of the light guide member. Ridge lines running along a subscanning direction on the light guide member are aligned in a scanning direction.

Abstract: An image reading apparatus includes a light source, an imaging optics system, an image pickup device unit, a memory, and a processor. The imaging optics system condenses scattered light reflected on an object to be imaged to form condensed light as an image. The imaging optics system includes plural cells arranged in a main scanning direction and each of which is an independent imaging optics system. Each of the cells includes a telecentric optics system at the document side. Two rows of cells are arranged in a sub-scanning direction. The cells in the rows are arranged zigzag in the main scanning direction to complement a formed image by the cells in the sub-scanning direction. The image pickup device unit is arranged to correspond to each cell. The processor can form a document image by reconstructing and combining image information stored in the memory into an image.

Abstract: An image-scanning device having a large depth of field and being small in size. The image-scanning device includes a plurality of cells and an image pickup device that is located so as to correspond to the cells and that picks-up the formed images. Each cell includes a first lens having a first focal length; an aperture member located at the first focal length from the first lens; and a second lens located at a second focal length shorter than the first focal length, with respect to the image pickup device.

Abstract: An illuminator includes a light guide having a circular cross-section, a scatterer that is provided on a portion of the circumference of the circular cross-section and that radiates scattering light toward the inside of the light guide, and a condensing lens that condenses light emitted from the light guide and transforms the light into a linear beam, a planar beam, or a point-like beam. In the illuminator light from the light source is effectively utilized, and the light can efficiently illuminate the required illumination area. In addition, an image reader apparatus can perform high-speed reading using such an illuminator.

Abstract: A radiant-temperature measurement device includes a time-based data measurement unit for acquiring, based on an intensity of first light, a first data value during a first measuring interval in a first intensity duration, and a second data value during a second measuring interval in a second intensity duration. The time-based data measurement unit is also for acquiring, based on an intensity of second light, a third data value in a first wavelength band, and a fourth data value in a second wavelength band, during the first measuring interval, and a fifth data value in the first wavelength band, and a sixth data value in the second wavelength band, during the second measuring interval. The radiant-temperature measurement device also includes a temperature calculation unit for calculating, based on the first, second, third, fourth, fifth, and sixth data values, a temperature of a light source at its light-emitting end.

Abstract: An image reading apparatus includes an illuminating optical system having light sources arranged in a line and a light guide member guiding rays of light from the light sources to illuminate a document which passes through a document reading position near a light emergent surface of the light guide member. An image reading-optical system includes a rod lens array to read light passing through the document, and a cylindrical lens array in the light emergent surface of the light guide member. Ridge lines running along a subscanning direction, on the light guide member are aligned in a scanning direction.