摘要:
An upward warp of a terminal pad of a flexible cable which is kept horizontal by a suction head is prevented by a pressing arm which contacts with an upper surface of a rear portion of the flexible cable.
摘要:
Pressing means is provided to press a movable base to a surface of a reference base to make the movable base in contact with the surface of the reference base to thereby lock-down the movable base on the surface of the reference base. The movable base is moved while slightly floating with respect to the reference base. A movable floating mechanism is provided to float the movable base from the reference base against pressing force of the pressing means exerted on the movable base to thereby relieve the locking. A floating amount of the movable base from the reference base may be small enough to reduce or substantially remove sliding friction between the movable base and the reference base. For example, the floating amount may be as small as ten to several hundreds microns.
摘要:
An optical information-recording medium, which is provided with a substrate and a light-absorbing layer formed of a dye material on the substrate, includes a user information area in which a concave/convex pattern including spiral-shaped or concentric grooves are formed, and BCA which is provided on an inner circumferential side of the user information area and in which information is recorded with a bar code, wherein a concave/convex pattern, which is different from the concave/convex pattern in the user information area, is formed in BCA. With this construction, an optical information-recording medium, on which BCA information is reproduced without performing any tracking, is provided, wherein a BCA reproduced signal having a satisfactory signal quality is obtained from BCA.
摘要:
In a light transmission system for transmitting a light beam with a variation of wavelength from a light source to a light receiver, comprising, an optical element for receiving the light beam and projecting the light beam, and a compensation optical element for receiving the light beam and projecting the light beam, the optical element and the compensation optical element are arranged optically in series between the light source and the light receiver, a deflection angle of the optical element changes in a first direction according to an increase of wavelength of the light beam, a compensating deflection angle of the compensation optical element changes in a second direction according to the increase of wavelength of the light beam, and the change of the deflection angle in the first direction is compensated by the change of the compensating deflection angle in the second direction so that a position on the light receiver at which position the light beam impinges is restrained from changing according to the increase of wavelength of the light beam.
摘要:
A compact recording and reproducing apparatus includes a floating-type head movable in a fan shape in parallel with the surface of a disk recording medium in order to make faster access to the tracks and to record information at a higher density. A slider and a head are secured to the tip of a swing arm capable of fan-shaped swing movement, and a solid immersion lens is used for the head, so that the light beam can be passed along the arm from the fulcrum at the rotating pivot of the swing arm member.
摘要:
On a surface of a transparent substrate 1 having a preformat pattern 2 formed thereon are laminated a first recording layer 4 in which a recording state exists in one different magnetic field region of an applied external magnetic field and a second recording layer 6 in which two recording states exist in magnetic field regions different from that for the first recording layer. As required, dielectric layers 3, 5 and 7, a reflecting layer 8 and a protection layer 9 can be laminated. The 4-valued recording of information becomes possible by assigning information signals "1", "0", "3" and "2" to H.sub.0, H.sub.1, H.sub.2 and H.sub.3, respectively.
摘要:
Endless printing belts with plural types of printing areas arranged on outer surfaces thereof are wound around printing support shafts and printing rotation members. Display rotation mechanisms have, arranged on outer surfaces thereof, display characters corresponding to printing characters in the printing areas arranged on the outer surfaces of the printing belts. A control member applies a torque to each printing rotation member or display rotation mechanism whereby the printing rotation member and display rotation mechanism rotate synchronously. As a result, printing surfaces of the printing areas are successively set to a printing position adjacent the printing support shaft, and display characters corresponding to the printing characters in the printing areas set to the printing position are successively set to a display position. The user may observe the display characters successively appearing in the display position to set display characters corresponding to desired printing characters. Then, the printing surfaces of the printing characters corresponding to the display characters are set to the printing position.
摘要:
An optical recording disc comprises a first bonding recess formed near an outside surface of an optical recording disc in a bonding boundary portion between a cylindrical hub and a transparent disc substrate, a disc member bonded with said transparent disc substrate through said cylindrical hub, and a second bonding recess formed near the outside surface of said optical recording disc in a bonding boundary portion between said cylindrical hub and said disc member. Accordingly, said optical recording disc can prevent remainder of a bonding material for bonding a pair of said transparent disc substrates or said transparent disc substrate and said disc member together from pushing out of the outside surface of the optical recording disc, resulting in that focusing for reading and writing an information signal can be properly performed.
摘要:
A magnetic head-positioning system to accurately test a magnetic disk and a magnetic head, comprises a plurality of hinges attached on an end portion of a linear driving element and disposed on both sides of a center line of the linear driving element, which is in parallel with an extension-shrinkage direction of the linear driving element, and an arm having a length longer than a distance between a plurality of hinge joint portions, the plurality of the hinge joint portions each of which join the hinge with a root portion of the arm and which are disposed on both sides of a center line of the arm which is in parallel with a longitudinal direction of the arm. The arm has an extremity portion on which a head gimbal assembly is detachably attached and this head gimbal assembly is positioned.
摘要:
In the present invention, through the provision of a tray placing rack for storing trays in multi steps, the trays accommodating electronic parts after inspection are received in the racks and through the provision of a tray stacking rack above the tray placing rack, an empty tray emptied by having been inspected of the electronic parts before inspection at an inspection stage is stacked on the tray stacking rack. When a certain tray is filled with electronic parts after inspection and is discharged, an empty ray is taken out from the tray stacking rack and the empty tray is fed to the rack position of the discharged tray to permit re-use of empty trays.