Abstract:
An optical pickup comprises a slide member displaced between an inner periphery of an information recording medium and an outer periphery thereof, a laser-beam receiving and emitting device comprised of an emitting unit for irradiating the information recording medium with a laser beam and a receiving unit for receiving therein a laser beam reflected from the information recording medium, a first laser-beam receiving and emitting device holding means rotated so as to approximately linearly move with a position different from an optical axis of the laser beam as a fulcrum to thereby position and hold the laser-beam receiving and emitting device, and a second laser-beam receiving and emitting device holding means rotated with the optical axis thereof as a fulcrum to thereby position and hold the laser-beam receiving and emitting device. According to the above construction, the use of two types of slide members become unnecessary and the position of the slide member can be easily adjusted.
Abstract:
An optical pickup for reproducing information recorded on a recording medium comprises a slide member 2, having a plurality of bosses 40, 42, 44, which can be displaced between the inner and outer peripheral portions of a recording medium, a laser beam emitting/receiving device 8, means for holding said laser beam emitting/receiving device wherein said holding means 6 is arranged to engage said bosses so that the laser beam emitting/receiving device can be rotated to a predetermined position.
Abstract:
PROBLEM TO BE SOLVED: To provide an optical disk device, which can efficiently perform radiation of heat of a semiconductor laser, and which is advantageous in miniaturizing the optical disk device or in increasing an output of the semiconductor laser. SOLUTION: The tip of a second support member 26 consisting of a material having low thermal conductivity is inserted into a hole 32 of a first support member 24 consisting of a material having large thermal conductivity. In the state in which a substrate part 2402 of the first support member 24 is apart from the bottom wall 1402 of a carriage 14 and in which the circumference of the substrate part 2402 is apart from a side wall part 1404 of the carriage 14, the tip part of the second support member 26 is attached in the hole 32 by soldering. One end of a heat conduction member 28 is attached to the substrate part 2402 of the first support member 24 via a screw 40 and a screw hole 34, and the other end is connected to a part of the sidewall part 1404 of the carriage 14 having a large heat capacity, via the screw 40 and a screw hole 1410. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an optical pickup and an optical disk device, in which the sizes and the costs are reduced, by connecting a flexible printed substrate to the driving direction end face of a base section. SOLUTION: The device is provided with a base section 22 which holds the optical system that reproduces and/or records information against an optical disk and is driven along the radial direction of the disk and a flexible printed substrate 26 which is pulled out from the end face in the driving direction of the section 22 in order to electrically connect between the holding by the base section 22 and the outside. One end of the substrate 26 is fixed to a driving direction end face 22a of the section 22, the other end face is led to the upper surface of the section 22, restrained on the surface, folded to the outer side, the end face is wounded and led to the lower part.
Abstract:
PROBLEM TO BE SOLVED: To accurately position a shell cover without any distortion or play and attaching this to a substrate by easy work in an optical pickup device constituted by arranging optical parts on a printed circuit board stuck to the substrate and attaching the shell cover having supported parts on a substrate. SOLUTION: The tip part of the supporting stick 43 of a shell cover 30 is brought into contact with the upper surface of a substrate 2 and the contact catch 42 of the shell cover 30 is brought into contact with the lower surface of a printed circuit board 36. The upper surface of the substrate 2 and the lower surface of the printed circuit board 36 are on the same plane. The tip part of the supporting stick 43 and the contact catch 42 are positioned on the parting line of an injection mold metallic mold and on the same plane.
Abstract:
PROBLEM TO BE SOLVED: To relax the mounting accuracy for a semiconductor laser element on a substrate and to facilitate the manufacturing of a device by flexibly displacing the position of a substrate part, mounting an optical part, between the position on which a light emitting element is arranged and the position on which an objective lens is arranged. SOLUTION: In this optical pickup device, a substrate 36 is flexibly displaced in the direction of a principal plane part (vertical direction) at a flexibly displacing part 52 located between the position on which a semiconductor laser element (laser coupler) is arranged and the position on which an objective lens driving mechanism 6 is arranged. In the optical pickup device, the inclination of the laser coupler 3 to the objective lens driving mechanism 6 is adjustable by means of the flexible displacement of such a substrate part 36.
Abstract:
PURPOSE:To easily adjust an optical pickup without requiring two kinds of slide bases, by providing a second holding means for positioning and holding a light-detecting/light-emitting element by rotating about an optical axis of a laser light as a fulcrum. CONSTITUTION:The optical pickup has a slide member 2 moving between an inner and an outer circumferences of a data recording medium D, and an IC 8 having a laser coupler as a light-detecting/light-emitting element provided with a light-emitting part for casting a laser light to the medium D and a photodetecting part for detecting a returning light of the laser light from the medium D. Moreover, the optical pickup has an IC base 6 as a first holding means for the light-detecting/light-emitting element. The IC base 6 rotates about a position different from an optical axis of the laser light, making a pseudo linear motion thereby to position and hold the light-detecting/light-emitting element. A second holding means 106 is also provided to position and hold the light-detecting/light-emitting element by rotating about the optical axis of the laser light. Since the optical pickup does not require two kinds of slide bases 2, the pickup is easy to adjust.
Abstract:
PURPOSE:To simplify a constitution and to ensure the operation of the titled mechanism by forming a rack that extends approximately in L-shaped state from a recording medium carrying member, transferring this rack by means of a pinion gear supported by a supporter body to move both a sliding body and the recording medium carrying member together. CONSTITUTION:The sliding body 5 supported by the supporting body 6 freely movably in a horizontal direction, and the recording medium carrying member 7 supported by the sliding body 5 freely movably in upward and downward directions, are provided. And the rack 9 so formed as extending in approximately L-shaped state from the recording medium carrying member 7 is transferred by the pinion gear 11 supported by the supporting body 6. At the time when the pinion gear 11 is engaged with the horizontal part 9a of the rack 9, the sliding body 5 is moved horizontally together with the recording medium carrying member 7, but at the time when the pinion gear 11 is engaged with the vertical part of the rack 9, only the member 7 is moved up and down. Further, a repulsing means 25 to energize the rack in one direction is provided to maintain the engagement between the rack and the pinion gear, so the operation is ensured.