Abstract: A disc chucking mechanism includes a turn table, on which a disc with a center hole is disposed, driven by a rotation/drive mechanism, said turn table having a cylindrical portion to which the center hole of a disc in fit, a first guide protruding radially outwardly of the outer circumferential surface of the cylindrical portion, second and third guides retractably provided at positions angularly spaced approximately 120° from the first guide with respect to the center of rotation of the cylindrical portion, and auxiliary guides provided at mid-positions between the second guide and the first guide and between the third guide and the first guide, a height of a peak point of each auxiliary guide being smaller than a height of a peak point of the first guide when measured from the outer circumferential surface of the cylindrical portion, wherein the distance of each auxiliary guide measured from the outer circumferenial surface of the cylindrical portion in smaller than the distance of the peak point of the

Abstract: Through-holes 14 are formed in an armature core 11, and engaging portions 21 are formed in an commutator unit 15 at positions corresponding to the through-holes 14. Positioning pins 23 are inserted into the through-holes 14 and the engaging portion 21 to exactly position the armature core 11 to the commutator unit 15. The coil terminals are soldered to risers 18 in a state that the under side of the risers 18 are supported by the tips 35 of legs 36 standing erect on a support tool 34, inserted through the open slots 33.

Abstract: A disc chucking mechanism includes a turn table 3 on which a disc 19 with a center hole 20 is located, a chucking magnet 10 for magnetically attracting a center hub 21 of the disc 19 to it, and a magnet yoke 60. The magnet yoke 60 includes a ring-like member which is inserted between the turn table 3 and the chucking magnet 10, engaging portions 62 which are extended from the ring-like member of the magnet yoke toward the turn table 3, and brought into engagement with the turn table, and magnet engaging portions 61 which are extended in the direction opposite to the bending direction of the engaging portions 62, and urgingly fix the chucking magnet 10.

Abstract: When winding an armature coil start S of a winding is entwined around a riser R1, the wire is wound via a riser R4 around a salient pole P1 adjacent to the riser R4 and an opposed salient pole P2 to the salient pole P1 in order, and leads from a riser R3 through an opposed riser R6 to an adjacent salient pole P3 and an opposed salient pole P4. Next, it is passed to a riser R5 and is wound around an opposed riser R2, an adjacent salient pole P5, and a salient pole P6, then ends with the riser R4. A varistor 18 is inserted and three electrodes 19 are soldered to the corresponding risers R2, R4, and R6.

Abstract: Projections 30 of a commutator unit 23 formed on the radial line of slit center positions of commutator piece 26 arranged radially are inserted into through holes 22 made on the center axes of salient poles 19 arranged radially in an armature core 15 and a rotator with high position accuracy of center points with respect to the salient poles 19 is formed. A projection tip face 30c is positioned on a shaft 14 to accurate predetermined dimension A from the rear end of the shaft, whereby accuracy of play gap D can be improved. The commutator unit 23 is reinforced with the projections 30 and wrong form dimensions made due to heat deformation at the soldering treatment time can be prevented.

Abstract: In a display-integrated panel having first and second electrodes crossing each other and being operable to display a gray scale image, a position indicated by an electronic pen is detected by a method including the step of displaying information on a display panel by repeating a step of displaying one frame.

Abstract: A stereoscopic image capture device of this invention includes: an image capturing face on which light from an object is incident; an optical element disposed on a side of the image capturing face on which the light is incident, the optical element converting an angle at which the light is incident thereon to a distance from an optical axis the optical element; and an afocal optical system including a plurality of lenses, wherein the afocal optical system forms, on the optical element, an image of the object formed on one of the plurality of lenses which is closest to the object.

Abstract: In one face of an annular permanent magnet 20, notch recesses 30 and 31 are formed in diameter directions which are different in phase by 90.degree. and used as positioning recesses 30 and fixing recesses 31. The positioning recesses 30 are positioned with respect to a mounting jig 41 by keys 61 which are similar to a magnetizing head, and fixed in the portions of the fixing recesses 31 by plastic working which is performed on an end face 62 of a case 18 by incision and bend cutters 48. Therefore, both the magnetization and the mounting can be performed by using the same reference, i.e., the positioning recesses 30 of the permanent magnet 20, and hence the accuracy of the magnetized positions can be ensured.

Abstract: An image input device includes a light source, a light guide for guiding the light, a first and a second low refractive index layer formed on surfaces of the light guide, the first and second low refractive index layers having a lower refractive index than that of the light guide, a light input device to make the light from the light source incident onto the light guide so that the incident light is totally reflected at the boundary of the light guide with the first or second low refractive index layer, a photoelectric converter, the photoelectric converter being disposed on the second low refractive index layer and an optical element having a plurality of lenses optically contacted with the surface of the light guide via the first low refractive index layer, the optical element taking out part of the light traveling in the light guide to illuminate a document and collecting reflected light from the document onto the photoelectric converter by means of the lenses.

Abstract: After a coil 24 is wound through an open slot 26 which forms a sufficient space for the winding operation of an armature core 10, a magnetic member 34 is inserted and mounted into the open slot 26 and is then engaged with and fixed to the umbrella portions 20 of the armature core 10. A gap 36 formed in the central portion of the open slot 26 operates to narrow a gap between the magnetic poles of mutually adjoining salient poles 16, which reduces not only the generation of cogging phenomena and vibrations but also variations in quality between products, that is, the armature cores 10 produced.

Abstract: An integrated image-input type display unit employs a conventional liquid crystal display panel and is capable of optically writing an original image directly at a high resolution into liquid crystal display panel and electrically reading the image. This unit has an image input/output device comprising a liquid crystal cell which contains light-sensitive molecules. The light-sensitive molecules are capable of changing their structure to a first molecular structure when being irradiated with light of a first wavelength range and to a second molecular structure when being irradiated with light of a second wavelength range, and are further capable of changing their alignment in accordance with the structural change of the light-sensitive molecules.

Abstract: A three-dimensional display apparatus includes a liquid crystal panel 1 for displaying a discrete Fourier transformed image and a slit panel 2 having a convex lens function in a horizontal direction and a plurality of slits 3 arranged in a zig-zag manner, which is disposed in front of the liquid crystal panel 1. Since a spatial image is generated by such a configuration, a wide viewing region can be obtained. Since the number of slits positioned in the horizontal direction is increased as that of a slit pattern of a conventional slit array, the deterioration of resolution in the horizontal direction is reduced. Furthermore, since the slits are arranged in a zig-zag manner, the area of each light-shielding portion between sampling positions is reduced, thereby preventing an optical means from obstructing the observation of images.

Abstract: In the motor (1), when a drive coil (17) is wound around a salient pole (114), the opening width of an armature core (11) is kept sufficiently large to be able to wind the drive coil (17) properly and easily. After the drive coil (17) is wound, a magnetic flux collecting plate (50) including a peripheral-direction extension portion (51) and an axial-direction extension portion (52) is mounted onto the outer peripheral surface (118) of a bow-shaped portion (117) of the salient pole (114.) In this mounting operation, two pawl-shaped positioning engagement portions (55) respectively formed in the magnetic flux collecting plate (50) are fitted into grooves (119) which are respectively formed in the upper and lower end faces of the armature core (11).

Abstract: In the stage of winding a drive coil (17) on salient poles (114) in the assembling of a motor (1), the opening width of an armature core (11) is wide enough to allow easy and proper winding of the drive coil (17). After the winding of the drive coil (17), opening-width adjusting members (50A) are put within open slots (100), to thereby reduce the opening width of the armature core (11) at the flux gathering parts (54A) and (55A) of the opening-width adjusting member (50A). The opening-width adjusting member (50A) is positioned and fixed, by its elasticity, within each open slot.

Abstract: In a brushless motor, its magnet unit is formed by laying on each other a first magnet made of a flexible bond magnet material which is anisotropic and a second magnet made of a flexible bond magnet material which is isotropic, and the second magnet is smaller in wall thickness than the first magnet, and is confronted with the stator and the magneto-electric conversion element.

Abstract: A method for mounting a sliding bearing comprises the steps of holding a position different in an axial direction from that of a shaft sliding portion of the bearing by a bearing holding member, inserting a sizing bar having almost the same outer diameter as that of a shaft supported by the sliding bearing, into a bearing hole of the bearing and pressing the outer circumference onto the shaft sliding portion of the sliding bearing in a radial direction while the sizing bar is inserted into the bearing hole. A sliding bearing described by the method comprises a portion adapted to being held by a bearing holding member to support a shaft in a radial direction, shaft sliding portions at positions displaced in the axial direction from the portion held by the bearing holding member and a pressing mark formed on the surface of the outer circumference side of the shaft sliding portion.

Abstract: A chucking magnet magnetizing method and magnetizing apparatus with which it is possible to carry out magnetization so that the magnetic attraction forces of chucking magnets are uniform even when there is some dispersion among products in the difference in height between the hub support and the chucking magnet are disclosed. Magnetization of a chucking magnet is carried out with the magnetizing power of a magnetizing device varied according to the difference in height between a hub support and the chucking magnet. There are provided a dimension measuring device for measuring the difference in height between the hub support and the chucking magnet and a varying device for varying the magnetization power from the magnetizing device based on measured values form the measuring device.

Abstract: The present projection display apparatus includes an illumination source, an LCD panel including a polarizing plate, a light projecting and receiving combinational lens, a screen, a light pen, a detection-use polarizing plate, a CCD, and a control circuit for controlling an operation of the LCD panel upon receiving a signal from the CCD. The combinational lens throws light of a display image from the LCD panel to project the light on the screen. Meanwhile, the lens receives light from the display image and luminescent spot light from the pen to focus them on the LCD panel and then reflect the same to make them incident on the CCD via the detection-use polarizing plate. The detection-use polarizing plate does not transmit the light of the display image.

Abstract: A magnet assembling device includes a rounding die into which a rectangular and flexible rubber magnet can be mounted in an annular manner; a die guide for guiding the rubber magnet mounted in the rounding die into a motor case; a push punch including a punching portion for inserting the rubber magnet mounted in the rounding die into the die guide and for pushing the rubber magnet out of the die guide into the motor case; and a magnetizing head for magnetizing the inner peripheral surface of the rubber magnet. The die guide is formed in a tapered shape such that the inside diameter dimension of the side thereof from which the rubber magnet is inserted is larger than the inside diameter dimension of the side thereof from which the rubber magnet is discharged.

Abstract: A motor includes a rotor case having a rotor magnet so as to face a stator core; a rotating shaft as fixed through a hole formed in the center of the rotor case; and a pulley having a center hole fixedly secured to a distal end portion of the rotating shaft projecting beyond the hole in the rotor case, the pulley being fixed to the rotor case.