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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsHideki Nakata, Hironori Tomita, Hideki Aikoh
Estimating the term…
An integrated unit in which a light source and a light emitting diode are combined into one component is fixed to an optical bench. Then, relative position adjustment of an objective lens actuator is carried out with respect to the optical bench so that a desired detection signal can be obtained through reflected light from a disk information recording medium and then the objective lens actuator is fixed. The relative position adjustment of the integrated unit is no longer required and it is no longer necessary preliminarily to provide a margin for adjusting the integrated unit. Thus, an optical head can be reduced in size and thickness.
A method of manufacturing an optical head comprising an integrated unit in which a light source and a light emitting diode are combined into one component, an objective lens actuator for maintaining an objective lens as a means of focusing light onto a disk information recording medium and actuating the objective lens in a focus direction and a radial direction of the disk information recording medium, and an optical bench for maintaining the integrated unit and the objective lens actuator, the method comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
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Heads, e.g. forming of the optical beam spot or modulation of the optical beam: apparatus or processes for the manufacture of optical heads, e.g.…
Disposition or mounting of heads or light sources relatively to record carriers: aligning the head or the light source relative to the record…
Heads, e.g. forming of the optical beam spot or modulation of the optical beam: integrated head arrangements, e.g. with source and detectors…
Means for guiding the beam from the source to the record carrier or from the record carrier to the detector: mirrors
Term end not estimated
The present invention relates to a method of manufacturing an optical head for a disk recording/reproducing apparatus using a system of optically recording or reproducing information by projecting a light spot on a disk recording medium.
Recently, disk recording/reproducing apparatuses have been used for many applications, such as for DVDs, MDs, CDs, CD-ROMs, or the like, which have been diversified year after year. In addition, they have been increasingly improved in density, performance, quality and added value, and reduced in size. Particularly, in disk recording/reproducing apparatuses using recordable magneto-optical media, the demand for those used for data and picture recording tends to increase considerably, and further reductions in size and thickness and further improvement in performance and recording density have been requested.
Conventionally, many techniques relating to optical heads for magneto-optical disks have been reported.
FIG. 1 is an exploded perspective view showing a method of adjusting an objective lens actuator in an optical head according to a first embodiment of the present invention.
FIG. 2 is a schematic perspective view showing the whole configuration in an assembled state of the optical head according to the first embodiment of the present invention.
FIG. 3 is an exploded perspective view showing a schematic configuration of the optical head according to the first embodiment of the present invention.
The present invention is described in detail using the drawings as follows.
First Embodiment
A first embodiment of the present invention is described with reference to the drawings as follows.