Abstract: A light source unit is provided which includes a light source with a plurality of light emission portions two-dimensionally arranged; a substrate on which the light source is mounted; a first support portion supporting the substrate; a bias member biasing the substrate towards the first support portion; a coupling element coupling a light beam emitted from the light source; a second support portion supporting the coupling element; and a holding member holding a position of the substrate relative to the first support portion.

Abstract: An optical scanning device includes an optical housing in which a polygon mirror that is rotated by a motor is accommodated and an air inlet that includes a filter. An airflow guiding member is arranged at a position opposite to a surface of the polygon mirror on the air inlet side. An air inducing path is provided, which includes a first flowing path and a second flowing path. The first flowing path includes a first end linked to the air inlet and a second end arranged close to a mirror surface of the polygon mirror. The second flowing path is formed with a surface of the airflow guiding member on an opposite side of the air inlet and a top surface of the polygon mirror.

Abstract: In order to realize a small and light key actuating apparatus for actuating a key which is rotatably supported with respect to a frame, a key actuating apparatus (7) is provided which includes a polymer transducer (9) for rotatably moving the key (3) by using a deformation of the transducer, wherein the transducer which is substantially formed in a plate shape includes: a polymer film (15) which is dielectric and made from an elastically deformable polymer material; and a pair of electrodes (17) arranged at both sides of surfaces of the polymer film, and the transducer is deformed corresponding to switching between an application of voltage and a lack of voltage between the electrodes.

Abstract: A diffractive-optical element that is transparent includes a diffraction surface that is formed by a step. A width of the step is set substantially equal to a common multiple of ?i/{n(?i)?1} for two or more wavelengths, where ?i (i=1, 2, . . . ) is a wavelength and n(?i) is a refractive index with respect to the wavelength ?i.

Abstract: [Problems] To provide a semiconductor wafer processing apparatus and reference angular position detection method able to suitably detect a reference angular position for a semiconductor wafer for which a reference angular position is set and a semiconductor wafer for which a reference angular position is suitably set. [Means for Solving Problems] A semiconductor wafer (100) is formed at part of an outer circumference edge part (101) with a crystal orientation detection flat surface (102) vertical to the diametrical direction at a position forming a predetermined angle with the crystal orientation.

Abstract: To provide a wafer containing cassette inspection device capable of expressing external view attributes such as shapes of respective inspection object portions of water containing cassettes of different types under the same condition without changing imaging conditions for each of the types. A wafer containing cassette inspection device includes an imaging device (61) and a processing unit (50) which processes an image signal from the imaging device (61).

Abstract: [Problem] To provide a surface inspection apparatus able to suitably inspect the outer circumference edge part of a semiconductor wafer or other plate-shaped member.

Abstract: An image pickup device disposed in a predetermined position relative to a surface of a strained silicon wafer photographs the surface of the strained silicon wafer in a plurality of rotation angle positions on photographing conditions under which bright lines appearing on the surface of the strained silicon wafer can be photographed, in an environment where a light source device illuminates the surface of the strained silicon wafer which is rotating. A composite image in a predetermined angle position is generated from surface images of the strained silicon wafer in a plurality of rotation angle positions obtained by the image pickup device.

Abstract: A surface-emission laser array comprises a plurality of surface-emission laser diode elements arranged in the form of a two-dimensional array, wherein a plurality of straight lines drawn perpendicularly to a straight line extending in a first direction from respective centers of the plurality of surface emission laser diode elements aligned in a second direction perpendicular to the first direction, are formed with generally equal interval in the first direction, the plurality of surface-emission laser diode elements are aligned in the first direction with an interval set to a reference value, and wherein the number of the surface-emission laser diode elements aligned in the first direction is smaller than the number of the surface-emission laser diode elements aligned in the second direction.

Abstract: An optical axis of at least one surface of a resin-made diffracting lens is shifted in a main scanning direction with respect to an incident beam. A synchronous detection can cancel a problem of a misalignment in the main scanning direction due to a temperature variation. A light reflected from a second surface of the resin-made diffractive lens condenses on a position that is displaced in an optical axis direction from an optical beam outgoing point of a semiconductor laser, and thereby the light reflected again from the semiconductor laser does not form an image on a scanned surface and an impact on the image becomes low.

Abstract: A light flux emitted from a light source is split into two by a light flux splitting unit, and these are respectively made incident on upper and lower tiers of polygon mirrors of a deflecting unit which coaxially rotates two polygon mirrors one on the other while being shifted in angles from each other. The respective light fluxes that have been deflected for scanning at mutually different timings by the deflecting unit respectively reach individual photodetectors through a first scanning lens, mirrors, and a second scanning lens as a predetermined light system and carry out main scanning.

Abstract: A key actuating system (1) of a keyboard musical instrument is provided which helps quickly push the keys by reducing reaction force with respect to force of pushing the keys during manual operation, and which supports a person having less strength to play the keyboard musical instrument. The key actuating system for a keyboard musical instrument generates a sound when a key (3) is pushed including: a pressure detection sensor (11) detecting a pushing pressure on the key; a status detection sensor (13) detecting a movement status of the key: an actuator (15) actuating the key in a pushing direction of the key; and a control portion (19), when the pressure detection sensor detects the pushing pressure and the status detection sensor detects motion of the key, controls operations of the actuator in order to maintain the detected pressure by the pressure detection sensor at a pressure threshold which is in a range larger than 0 and smaller than a pushing pressure on the key which is necessary for making a sound.

Abstract: An optical scanning device includes a light source having light emitting points for emitting light beams, a coupling optical element that couples the light beams, a deflecting unit that deflects and scans the light beams, and a scanning optical system that focus the light beams to form an image. The optical scanning device satisfies the following condition: F tan(?/2)+A<D/0.7 where A is the maximum distance between the light emitting points and an optical axis of the coupling optical element, ? is a divergence angle (full-width half-maximum) of the light beams, F is a focal length of. the coupling optical element, and D is an effective radius of the coupling optical element.

Abstract: P-polarized light beam passing through an f? lens passes through a polarization beam splitter, is converted into S-polarized light beam by a quarter-wave plate and a reflecting mirror, re-enters the polarization beam splitter, and is reflected at the polarization beam splitter in the ?Z direction. An optical path of a light beam between a polygon mirror and the f? lens, between the f? lens and the polarization beam splitter, between the polarization beam splitter and the quarter-wave plate, between the quarter-wave plate and a reflecting mirror, between the reflecting mirror and the quarter-wave plate, and between the quarter-wave plate and the polarization beam splitter are in the same plane.

Abstract: A linear actuator which can make a bed flat in emergency. A linear actuator (10) comprising a shaft (16) having an externally threaded portion (17), a worm reduction gear for transmitting rotation of a motor (40) to the shaft (16), a nut (19) screwing on the externally threaded portion (17) and advancing or retreating as the shaft (16) rotates forward or reversely, and a moving tube (12) secured to the nut (19) and advancing or retreating for the housing (11) is further provided with a sub-shaft (52) interlocked with the worm reduction gear, an inner race (59) spline coupled with the sub-shaft (52), an engaging male portion (82) and an engaging female portion (83) interposed between the inner race (59) and the collar (55) of the shaft (16) to engage freely with each other, an operating ring (66) fitted rotatably to the outer circumference of the housing (11), and a working ring (72) for transmitting the rotation of the operating ring (66) to the inner race (59) while converting into axial movement.

Abstract: An optical scanning apparatus includes a light source, a light source driving unit that turns on the light source according to image information, a deflector that deflects and scans a light beam emitted from the light source according to sinusoidal vibration, and a scanning/imaging optical system that guides the light beam from the deflector to a scanned surface. The scanning/imaging optical system satisfies two conditions, i.e., (1) provided that the deflector moves in such a manner that an angular velocity is constant, linearity is made larger at a most peripheral image height than at a central image height within a range of an effective writing width, and (2) when a deflection angle of the deflector has a sinusoidal characteristic, the linearity is made smaller at the most peripheral image height than at the central image height within the range of the effective writing width.

Abstract: A X-ray inspection device for inspecting a solder connection portion between a circuit device having a solder ball and a printed circuit board having a land includes: X-ray irradiating means for irradiating X-ray to the solder connection portion between the solder ball and the land; X-ray detecting means for detecting the X-ray transmitted through the solder connection portion and for outputting a detection signal; and image forming means for forming and outputting a horizontal tomographic image of the solder connection portion on the basis of the detection signal. The horizontal tomographic image shows existence or nonexistence of a solder bump disposed on a side of the land.

Abstract: An optical scanning device includes a lens having a negative optical power at least in a sub-scanning direction and a lens having a positive optical power at least in the sub-scanning direction between a light source and a deflecting unit. The optical scanning device further includes a coupling lens and an adjusting lens whose positions can be adjusted in an optical axis direction and then bonded with ultraviolet curing resin. Therefore, the magnification of an optical system can be adjusted and consequently a desired scan-line interval can be obtained.

Abstract: [Problems] To provide a visual inspection system able to greatly suppress the increase of the amount of processing and detect scratches or other defects of the surface of an object being inspected by a suitable resolution and able to judge the state of formation of films on that object surface. [Means for Solution] A system having an imaging unit 20 provided with a plurality of line sensors 22R, 22G, and 22B differing in color sensitivity characteristics and a processing unit 50, the processing unit 50 having a pixel data acquiring means (S14) acquiring pixel density data from a density signal from a reference line sensor by a first pixel density and pixel density data from density signals from the line sensors other than the reference line sensor by a second pixel density lower than the first pixel density and generating information showing the state of the object surface based on the pixel density data acquired by the first pixel density and the pixel density data acquired by the second pixel density.

Abstract: By setting elements within the range that predetermined conditions are satisfied, for example, so that a size of a rotating polygon mirror is minimized, the rotating polygon mirror is made compact while the eclipse of light beams in the main scanning direction is prevented. The cost reduction of an apparatus is thus realized. The compact rotating polygon mirror reduces the consumption energy and the amount of heat generated in its drive system. Deteriorations in various optical characteristics including an increase in spot diameter of the light beam by temperature variation, uneven scanning pitch, and sub-scanning direction variation in beam pitch are suppressed.