JPS61258344A - Information processor - Google Patents

Abstract

PURPOSE:To prevent a lead wire from impeding the movement of a movable member in terms of weight and wiring structure, by using a hollow fixed shaft and putting the lead wire through the inside of the fixed shaft. CONSTITUTION:A cylindrical fixed shaft 32 has a hollow structure and each end at one side of lead wires 33 and 34 is connected with the 1st and 2nd coils 12 and 13 and an optical processing member 17 respectively like a conventional case. While the other end of each of those wires 33 and 34 is led outside through the inside of the shaft 32 and connected to a power supply, etc.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an information processing device in which power is supplied to a power supply component such as an optical information reading means held by a movable member via a lead wire. The present invention relates to an information processing device in which the movement of the movable member is not inhibited by the lead wire.

[Conventional technology]

3 and 4 show an optical head device as an information processing device according to the prior art. The optical head device writes information to or reads information from an optical disk.

In the figure, 1 is a base, and the base 1 has a hole 2 in the thickness direction in the center.
A rectangular parallelepiped-shaped flat plate part 3 having a hole in it, and a guide wall 4 erected on the upper surface of the flat plate part 3 so as to face each other across the hole 2.
, 4, and the hole 2 has a fixed shaft 5 in the vertical direction.
has been planted.

Here, the guide walls 4, 4 are constituted by a part of a cylindrical wall having the central axis (1) as the axis so as to maintain a distance (R) from the central axis (1) of the hole 2.

Further, reference numeral 6.6 denotes a pair of magnets attached to the base 1, and these magnets 6.6 are attached to the upper surface of the flat plate portion 3 so as to be located outside the guide walls 4, 4. Between these magnets 6.degree. 6, lines of magnetic force are generated in the direction of the arrow in the figure.

Further, numeral 7 indicates a movable member loosely fitted to the fixed shaft 5 so as to be vertically movable and rotatable. The movable member 7 includes a disk portion 9 having a fixed shaft insertion hole 8 bored in the center thereof, and a cylindrical portion 9 extending downward from the circumference of the fixed shaft insertion hole 8 and into which the fixed shaft 5 is inserted. It is composed of a fixed shaft insertion part 10 and a large diameter cylindrical part 11 extending downward from the outer circumferential line of the disc part 9 and located between each of the magnets 6 and each guide wall 4.

Further, 12 is a first coil wound around the outer periphery of the large diameter cylindrical portion 11 of the movable member 7, and the first coil 12 is wound in the circumferential direction of the large diameter cylindrical portion 11.

Also, 13,13. . . . indicates a second coil provided in a loop shape on the circumferential surface of the large diameter cylindrical portion 11. Therefore, when a current is passed through the first coil 12, the current interferes with the magnetic lines of force (M), and as a result, the movable member 7 moves upward depending on the direction and strength of the current.

It will move downward. Moreover, the second coil 13
,13. When a current is passed through 2. The current interferes with the lines of magnetic force, and as a result, the movable member 7 moves in the circumferential direction depending on the direction and strength of the current. 15, 15, 16, and 16 are the first coil 12 and the second coil.
The lead wires of the coil 13 are shown respectively.

Reference numeral 17 indicates a light processing member as a power supply component provided on the upper surface of the disk portion 9 of the movable member 7. As shown in FIG. 5, the optical processing member 17 is composed of a substrate 18, a buffer layer 19 laminated on the upper surface of the substrate 18, and an optical path section 20 formed into an optical IC provided on the upper surface of the buffer rr 119. has been done. Here, the optical path section 20 is connected to the light (α) from the light source 21.
), a collimating lens 23 that converts the light (α) into parallel light (β), and a beam splitter 24 provided behind the collimating lens 23.
, a condensing grating coupler 25 that controls the parallel light (β) and condenses it on a predetermined portion, and
) and a photodetector 26 that receives reflected light (P) from the optical disc (H) and reads out information written on the optical disc (H).

27, 27, 28, and 28 indicate lead wires from the optical processing member 17.

Further, 29 indicates a movable terminal block attached to the movable member 7, and 30 indicates a fixed terminal block attached to the magnet 6. Both terminal blocks 29 and 30 have lead wires 3
1,31. It is connected by... Therefore, the 1]-D wire (not shown) from the fixed side terminal block 30
is connected to an external power source or the like.

Next, the effect will be explained.

Writes information on recording media at high density using laser light,
When reading or erasing, first. A predetermined current is applied to each of the second coils 12 and 13. As a result, the movable member 7 moves upward, downward, or rotates in the circumferential direction, so that the optical processing member 17 accurately tracks the top, bottom, and ivy on the rotating optical disk (H), and as a result, the light The light spot from the processing member 17 can be accurately aligned with the optical disk (formerly the target trunk). There is a semiconductor laser diode as 21, and the light emitted from it passes through a dielectric thin film layer 22, is focused by a condensing grating coupler 25, is reflected by an optical disk (H) as a recording medium, and is converted into an optical IC again. The light returns to the optical path section 20 and is converted into an electrical signal by a photodetector 26.

[Problem that the invention seeks to solve]

As described above, the optical path section 20 of the optical head device according to the prior art, which is converted into an optical IC, includes electrical components such as a semiconductor laser diode as a light source 21 and a photodetector 26 that converts an optical signal into an electrical signal, and also has movable components. Two sets of coils 1 of member 7
2.13 have two leads 15.16 each. Therefore, the number of lead wires from the movable member 17 to the fixed terminal block 30 is 10 to 20.

Incidentally, these lead wires are connected to a fixed terminal block 30 via a movable terminal block 29 provided on the movable member 7. Therefore, the movable side terminal block 2 is attached to the movable member 7.
The load of 9 and the load of the lead wire itself are added, and as a result,
There was a problem in that the movement of the movable member 7 was hindered due to its weight.

Further, as the movable member 7 rotates, the distance between the movable terminal block 29 and the fixed terminal block 30 changes.

For this reason, the lead wires 31, 31, . . . . may be subjected to tensile force (F) due to the movement of the movable member 7. In this case, the movement of the movable member 7 is caused by the tensile force (F
) was a problem.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an information processing device in which the movement of movable members is not obstructed by lead wires.

[Means for solving problems]

In the present invention, the fixed shaft is hollow, and the lead wire extends from the outside through the inside of the fixed shaft toward the power supply component.

[Effect]

The lead wires from the optical processing member and the coil are wired to pass through the inside of the fixed shaft without relaying the movable member, so the weight of the movable member does not increase and the wiring of the lead wires is also simplified. Movement of the movable member is unimpeded.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 3. Note that the same components as those in the prior art are given the same reference numerals, and the description thereof will be omitted.

However, in the present invention, the movable terminal block 29 and fixed terminal block 30 in the prior art are not provided.

Reference numeral 32 denotes a fixed shaft in the present invention, and the fixed shaft 32 is formed in a cylindrical shape and is hollow inside.

Also, 33, 33. ......, 34.34...
・ are lead wires in the present invention, and these lead wires 33° 33, . . . , 34, 34. Each one end side of .
7, and this point is similar to the prior art. However, these leads 33°33,
......, 34, 34. . . . The other end is inserted through the inside of the fixed shaft 32, guided to the outside, and connected to a power source or the like.

Next, the effect will be explained.

First, the rotation center of the movable member 7 is the fixed shaft 32. Therefore, even if the movable member 7 rotates, the lead wires 33, 33
．． ......, 34, 34.・・・・・・One end side (
The distance between the A or B side) and the fixed shaft 32 is constant.

Therefore, even if the movable member 7 rotates, the lead wire 3'3
, 33. ......, 34, 34.・・・・・・
No external force (force equivalent to external force F in the prior art) acts on . Therefore, the movement of the movable member 7 is controlled by the lead wires 33, 33. ......, 34.34.・・・・・・
There is no interference from the wiring.

Moreover, the above lead wire 33.33. ......, 34,3
4. . . . is a movable terminal block 29 in the prior art.
The movable member 7 is not provided with such a relay point. Therefore, not only is the load of the movable side terminal block 29 not applied to the movable member 7, but also the lead wires 33, 33, . . .
・, 34, 34. The load due to the weight of the movable member 7 is also reduced by half, and as a result, the movement of the movable member 7 is not hindered by its weight.

〔Effect of the invention〕

As explained above, according to the present invention, the fixed shaft is hollow and the lead wire is inserted through the inside of the fixed shaft, so that the lead wire is a movable member in terms of weight and wiring structure. It is possible to provide an information processing device that does not impede the movement of the user and is preferable in terms of operation.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the information processing device according to the present invention applied to an optical head device, FIG. 2 is a side sectional view of FIG. 1, and FIG.
This figure is a perspective view of an optical head device in the prior art, FIG. 4 is a side sectional view of FIG. 3, and FIG. 5 is a perspective view showing power supply components. 7...;...Movable member, 17...Power supply part (
light processing member), 22...dielectric thin film layer, 25.
...Condensing grating coupler, 26...
・Photodetector, 32...Fixed axis, 33.34...
····Lead.

Claims (2)

[Claims] (1) In an information processing device that includes a movable member that is movable in the longitudinal and circumferential directions of a fixed shaft, a power supply component held by the movable member, and a lead wire that supplies power to the power supply component from the outside. . An information processing device, wherein the fixed shaft is hollow, and the lead wire extends from the outside toward the power supply component through the inside of the fixed shaft. (2) The power supply component includes a dielectric thin film layer that guides the light from the light source, a condensing grating coupler that controls the light and focuses it on a predetermined location, and a condensing grating coupler that controls the light and focuses the light on a predetermined location. 2. The information processing apparatus according to claim 1, further comprising a light processing member comprising a photodetector that receives reflected light.