Information recording device and recording head

Abstract

In an information recording device, an LD (100) located at a position a predetermined distance away from a swing arm (20) outputs laser light, and the laser light is applied through a beam converter (90) and a mirror (80) to a spherical aberration lens (70) for causing spherical aberration. The information recording device causes the laser light having transmitted through the spherical aberration lens to enter into a light entry opening of a slider (60) at a certain angle (vertical). This applies the light to that position of a recording medium where information is recorded, thermally assisting information recording.

Description

technical field [0001] The present invention relates to control of an arm provided with a recording head for recording information on a recording medium, and an information recording device for recording information on the recording medium. In particular, it relates to solving the problem of thermal disturbance for high-density magnetic disks, enabling rapid recording / recording to the recording medium. An information recording device and a recording head for reproducing information. Background technique [0002] In recent years, the recording density of recording media on which information is recorded is also increasing along with the increase in capacity of magnetic disk devices and the like of computer equipment. In a magnetic disk device, reading and writing of information to a recording medium is performed by a magnetic head. FIG. 19 is a diagram showing an outline of a magnetic disk device. As shown in the figure, this magnetic disk drive rotates a swing arm having a ...

AI Technical Summary

Problems solved by technology

[0016] However, in the prior art described above, in order to irradiate the recording medium with laser light for heat assist, an optical system, an optical fiber, etc. are arranged on the swing arm, so there is a problem that the swing arm becomes heavy.

[0017] In this way, since the swing arm becomes heavy, there is a problem that the advantages of the magnetic disk device, that is, the fast recording or fast reproduction of information based on the fast lookup of the swing arm cannot be realized.

[0018] And, although it is also conceivable to install a linear drive instead of the rocker arm provided on the magnetic disk device, it is very difficult to redesign the magnetic disk device using the linear drive, and it is unrealistic in terms of design time and design cost.

Moreover, the access speed is extremely slow, resulting in the destruction of the fast access performance of the disk.

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