JPH10340477A - Optical pickup adjusting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical pickup adjusting device which has no variation of adjusted value while adjusting or after finish of adjustment. SOLUTION: The optical pickup adjusting device 10 to adjust an optical pickup 15 its provided with an adjusting device proper part 20 to hold the optical pickup 15, a plurality of bits 41 to engage with and turn the part to be adjusted 16 of a plurality of optical pickup 15, an adjusting bit unit part 40 to hold the bit 41 freely turnably and elastically in the axial direction, and a vertical motion mechanism 30 to shift the adjusting bit unit part 40 in the bit axial direction so that a plurality of bit 41 apply at the time of adjustment a prescribed pre-pressure to a plurality of parts to be adjusted 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to adjustment of the function and performance of an optical pickup, and more particularly, to an optical pickup adjustment device.

[0002]

2. Description of the Related Art Conventionally, an optical pickup used in an optical disk apparatus or the like is provided with an objective lens for reading out information recorded on a recording surface of the optical disk so that a laser spot can follow a surface deflection or eccentricity of the optical disk. With the optical pickup for controlling the position of the optical pickup incorporated in an optical disk device or the like, the function and performance of the optical pickup are adjusted so that the function is maximized.

A conventional optical pickup adjusting device will be described with reference to FIG. FIG. 7 is a schematic configuration diagram showing a main part of a conventional optical pickup adjustment device. Reference numeral 100 denotes an optical pickup adjustment device for adjusting the function and performance of the optical pickup 105 (for example, three-spot rotation adjustment, radial skew adjustment, tangential skew adjustment, and laser power adjustment). The optical pickup adjusting device 100 includes an adjusting device main body 110, an elevating mechanism 12
0, an adjustment bit unit 130 and a measuring unit (not shown).

The adjusting device main body 110 includes an optical pickup holding portion (not shown) for easily attaching and detaching the optical pickup 105 to be adjusted, and a test optical disk drive (not shown) and the like below the optical pickup 105. The adjustment device main body 110 is provided with the adjustment bit unit 1
30 and a measuring unit. Lift mechanism 120
Is a mechanism that is attached to the adjustment device main body 110 and moves up and down the adjustment bit unit 130 fixed to the lifting mechanism 120. The elevating mechanism unit 120 includes two guide units 121 and a guide unit 121 provided in the vertical direction.
A sliding portion 122 that engages with and slides on, an air cylinder 123 that raises and lowers the sliding portion 122, a mounting plate 124 that fixes the air cylinder 123, and the like.

[0005] The adjustment bit unit section 130
31, a unit base 132, a bit holding portion 133, a compression winding spring 134, and the like. The tip of the bit 131 is the portion 10 to be adjusted of the optical pickup 105.
6, for example, a (+) or (−) shape, and a knob 135 for rotating the bit 105 is formed at the other end. Further, a groove for inserting the E-ring with which the compression winding spring 134 comes into contact is formed in the middle. The bit 131 is incorporated in correspondence with the plurality of adjusted portions 106 of the optical pickup 105, and is normally pushed upward by a compression winding spring 134, so that the bit 131 is pushed in at the time of adjustment. It is engaged with the part to be adjusted 106 and rotated for adjustment. When the restraint state is released, the bit 131 is raised by the elastic force of the compression winding spring 134 and returns to the original position.

The unit base 132 has a plate shape, and has a guide hole 136 of the bit 131 and the bit holding portion 13.
3, a mounting hole for the lifting mechanism 120 and the like are formed.
The bit holding portion 133 has a hat shape, and has a guide hole 137 for the bit 131 at the top, and a mounting hole to the unit base 132 at the edge. Next, adjustment of the optical pickup will be described.

First, the optical pickup 105 to be adjusted is set on the optical pickup holding portion of the adjusting device main body 110. Next, the lifting mechanism 120 is lowered to bring the tip of the bit 131 of the adjustment bit unit 130 closer to the adjustment target 106 of the set optical pickup 105. Next, while reading information recorded on the recording surface of the test optical disk by the optical pickup 105 set by driving the test optical disk, predetermined bits 13
1 is depressed and rotated while engaged with the adjusted portion 106 to adjust the adjusted portion 106 to an optimum value one by one. When the adjustment of all items is completed, the drive of the test optical disk is stopped, the lifting mechanism 120 is raised, and the adjustment bit unit 130 is returned to the original position. Next, the optical pickup 1
05 is taken out, and if necessary, the portion to be adjusted 106 is fixed using an adhesive or the like.

[0008]

However, in the above-described optical pickup adjusting device 100, when adjusting the function and performance of the optical pickup 105, the bit 131 of the adjustment bit unit 130 is adjusted by the adjusted portion 106 of the optical pickup 105. The adjustment target 106 may be slightly shifted (turned) when the optical pickup 105 is attached or detached, and the adjustment value is shifted after the adjustment is completed, so that the original function and performance of the optical pickup 105 cannot be exhibited. Therefore, it is necessary to perform readjustment after the end of the adjustment, or it is difficult for all of the adjustment items to be within the adjustment range due to the influence of the plurality of adjusted parts 106, and the time required for the adjustment becomes longer. Problems arise.

Accordingly, an object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide an optical pickup adjustment apparatus in which adjustment values do not shift during or after adjustment of functions and performance.

[0010]

SUMMARY OF THE INVENTION The present invention achieves the above-mentioned object, and in an optical pickup adjusting device for adjusting an optical pickup, an adjusting device main body for holding the optical pickup, and a plurality of optical pickups. A plurality of bits that are engaged with the portion to be adjusted and rotated, bit holding means for rotatably and elastically holding the bit in the axial direction, and moving means for moving the bit holding portion in the bit axis direction; And an extra pressure means for controlling the bit holding means so that the plurality of bits apply a predetermined extra pressure to the portion to be adjusted at the time of the adjustment.

[0011] Further, the optical pickup is characterized in that it has pressure contact holding means for holding the bit in a pressure contact state with the adjusted portion until the adjusted portion is bonded and fixed after the adjustment of the optical pickup. Further, in the optical pickup adjusting device for adjusting the optical pickup, an adjusting device main body that holds the optical pickup, a plurality of bits that are engaged with a plurality of adjusted portions of the optical pickup and are rotated, and A projecting portion provided in the middle of the bit and extending in the circumferential direction of the bit, bit holding means for rotatably holding the bit elastically in the axial direction, an oblong hole through which the bit is inserted, and the oblong hole An intermediate member having a convex portion formed along the side of the elastic member, which presses the overhanging portion against the convex portion,
Moving means for moving the bit holding means in the bit axis direction, wherein the bit can be moved in a direction perpendicular to the moving direction of the intermediate member by moving the intermediate member. It is.

Further, the convex portion is provided so that the three spot rotation adjusting portion of the optical pickup is disengaged from the bit after the skew adjusting portion. It is. Further, the convex portion is provided so that the tangential skew adjustment portion of the optical pickup is released from the engagement state with the bit after the radial skew adjustment portion. .

[0013] Further, the convex portion is provided so that the optical power adjusting adjustment portion of the optical pickup is disengaged from the bit after the other adjusting portion. It is.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic configuration diagram showing an optical pickup adjustment device according to a first embodiment of the present invention, wherein FIG.
(B) is a front view. FIGS. 2A and 2B are configuration diagrams showing the adjustment bit unit of the first embodiment, wherein FIG. 2A is a front view and FIG. 2B is a side view.

Reference numeral 10 denotes an optical pickup adjusting device for adjusting the functions and performances of the optical pickup 15 (for example, three-spot rotation adjustment, radial skew adjustment, tangential skew adjustment, laser power adjustment). The optical pickup adjusting device 10 includes an adjusting device main body 20, an elevating mechanism 30, an adjustment bit unit 40, a measuring unit (not shown), and the like.

The adjusting device main body 20 incorporates an optical pickup holder (not shown) from which the optical pickup 15 to be adjusted can be easily attached and detached, and a drive unit (not shown) for a test optical disk below the optical pickup 15. ing. The adjusting device main body 20 includes an adjusting bit unit 40
And the measurement unit. The elevating mechanism 30 is attached to the adjusting device main body 20, and the elevating mechanism 30
This is a mechanism for raising and lowering the adjustment bit unit section 40 fixed to the section. The elevating mechanism section 30 fixes two guide sections 31 provided in the vertical direction, a sliding section 32 that engages with the guide section 31 and slides, an air cylinder 33 that moves the sliding section 32 up and down, and the air cylinder 33. And a mounting plate 34 or the like.

The adjustment bit unit 40 has a bit 4
1, a unit base 42, a bit holding portion 45, a compression winding spring 48, and the like. The tip of the bit 41 is formed in a shape that engages with the adjusted portion 16 of the optical pickup 15, for example, (+) or (−).
A knob 44 for rotating the bit 41 is formed at the other end. In the middle, the compression winding spring 4
An E-ring insertion groove is formed in which the E-ring 8 contacts.
The bit 41 is incorporated in correspondence with the plurality of portions 16 to be adjusted of the optical pickup 15 and is normally pushed down in the direction of the arrow (the lower part in the figure) by the compression winding spring 48. The distal end is brought into pressure contact with the adjusted portion 16 of the optical pickup 15.

The unit base 42 has a plate shape, and is formed with a guide hole 43 for the bit 41, a bit holding portion 45, a mounting hole for the lifting mechanism 30, and the like. The bit holding portion 45 has a hat-shaped side surface, a guide hole 46 for the bit 41 at the top, and a unit base 4 at the edge.
2 are formed. Next, adjustment of the optical pickup will be described.

First, the optical pickup 15 to be adjusted is set on the optical pickup holding section of the adjusting device main body 20.
Next, the lifting mechanism 30 is lowered to bring the bit 41 of the adjustment bit unit 40 into pressure contact with the set portion 16 of the optical pickup 15 set. In this state, all the tips of the bits 41 are brought into pressure contact with the portion 16 to be adjusted. Next, while reading the information recorded on the recording surface of the test optical disc with the optical pickup 15 set by driving the test optical disc, the bit 41 is rotated to move the adjusted portion 16 of the optical pickup 15 one by one. Adjust to the optimal value.
When the adjustment of all the items is completed, the drive of the test optical disk is stopped, and the adjusted portion 16 to be adjusted is temporarily fixed or fixed using an adhesive or the like. Next, the lifting / lowering mechanism 30 is raised to return the adjustment bit unit 40 to its original position, and the optical pickup 15 is taken out. Then, if necessary, the temporary fixing portion is further fixed.

As described above, according to the present embodiment, all the tips of the bits 41 of the adjustment bit unit section 40 are pressed against the adjusted section 16 of the optical pickup 15 to be adjusted. Since the adjustment is performed, a change in the adjustment value during the adjustment is reduced. In addition, the bit 41 is
Because it moves in the vertical (axis) direction with respect to 6, and attaches and detaches,
The rotating force is not applied to the adjusted portion 16. Therefore, the adjustment value does not fluctuate after the adjustment, and the optical pickup 1
5 can improve the adjustment quality. In this embodiment, the adjustment of the adjusted portion 16 has been described as manual adjustment (by turning the bit 41 by hand). However, the bit 41 is automatically rotated according to a programmed adjustment procedure to adjust each of the adjusted portions. When the part 16 is adjusted to an appropriate value, the steps up to bonding and fixing the adjusted part 16 can be easily automated.

Next, a second embodiment of the present invention will be described with reference to FIGS. 3, 4 and 5. FIG. 3A and 3B are configuration diagrams showing an adjustment bit unit according to a second embodiment of the present invention, wherein FIG. 3A is a front view and FIG. 3B is a side view. 4A and 4B are configuration diagrams showing a main part of an adjustment bit unit portion of the second embodiment, wherein FIG. 4A is a front view, FIG. 4B is an enlarged cross-sectional view taken along line AA, FIG. d) is a BB sectional view. 5A and 5B show details of the intermediate member of the second embodiment, where FIG. 5A is a plan view and FIG.
Is a side view, (c) is a CC cross-sectional view, and (d) is a side view showing the relationship between the bit and the intermediate member. In the second embodiment, a part of the adjustment bit unit of the first embodiment is changed, and the others are substantially the same as those of the first embodiment. Are denoted by the same reference numerals and description thereof is omitted.

The adjustment bit unit section 50 stores the bit 5
5, a unit base 65, a bit holding portion 68, an intermediate member 70, a compression winding spring 48, and the like.
The tip of the bit 55 is the portion 1 to be adjusted of the optical pickup 15.
6, for example, a (+) or (−) shape, and a knob 58 for rotating the bit 55 is formed at the other end. Also, bit 5
In the middle of 5, a groove 56 for holding a disk (corresponding to an overhang) 60 with which the compression winding spring 48 and the projection 72 of the intermediate member 70 abut is formed. The disc 60 has an elliptical spherical shape below the disc, and a hole 61 having substantially the same diameter as the shaft portion 57 of the groove 56 of the bit 55 is formed at the center thereof. Is given. Disk 60
Can be inserted into the shaft portion 57 of the groove 56 by opening the edge cutting 62 portion and elastically deforming it. The thickness of the central portion of the disk 60 is formed so as to engage with the width of the groove 56. As the material of the disk 60, a resin material or the like is used. Since the bit 55 is incorporated in correspondence with the plurality of adjusted portions 16 of the optical pickup 15 and is normally pushed down in the direction of the arrow (the lower part in the figure) by the compression winding spring 48,
At the time of adjustment, the tip of the bit 55 comes into pressure contact with the adjusted portion 16 of the optical pickup 15.

The unit base 65 has a plate-like shape, and is formed with a guide hole 66 for the bit 55, a mounting hole for the bit holding portion 68, and the elevating mechanism 30. Further, a scale 67 for adjusting the movement position of the intermediate member 70 is provided. The bit holding portion 68 has a hat-shaped side surface, a guide hole 69 for the bit 41 at the top, and a mounting hole to the unit base 42 at the edge.

The intermediate member 70 is engaged with the bit 55 to move the bit 55 in the vertical direction. The intermediate member 70 has a plate shape, and the oblong hole 71 through which the bit 55 is inserted is moved in the moving direction of the intermediate member 70 (arrows E and E). F direction), and on both sides of the oblong hole 71, a convex portion 72 is formed which is in contact with the lower surface of the disk 60 attached to the bit 55. In addition, an inclined portion 73 is formed on the convex portion 72 so as to be easily engaged with the disk 60. Note that the bit 55 moves in the vertical direction by the height of the protrusion 72. Further, a reference scale 74 for adjusting the movement position of the intermediate member 70 is provided.

Next, adjustment of the optical pickup will be described. First, the optical pickup 15 to be adjusted is set on the optical pickup holding portion of the adjustment device main body 20. next,
The elevating mechanism 30 is lowered to bring the bit 55 of the adjustment bit unit 50 into pressure contact with the set portion 16 of the optical pickup 15 set. In this state, all the tips of the bit 55 are brought into pressure contact with the portion 16 to be adjusted. Next, while reading the information recorded on the recording surface of the test optical disk with the optical pickup 15 set by driving the test optical disk, the bit 55 is turned to rotate the optical pickup 15.
Are adjusted to the optimum value one by one. At this time, if necessary, the intermediate member 70 is moved in the direction of arrow E, and the disk 60 of the predetermined bit 55 and the projection 72 are engaged. Then, the bit 55 is detached from the adjusted portion 16 in the vertical direction, and adjustment for each adjustment item or confirmation of the adjustment value is performed. When the adjustment of all items is completed, the drive of the test optical disk is stopped, and the adjusted portion 16 is temporarily fixed or fixed using an adhesive or the like. Next, the lifting / lowering mechanism 30 is raised, and the adjustment bit unit 50 is returned to the original position, and the optical pickup 15 is taken out. Then, if necessary, the temporary fixing portion is further fixed.

As described above, according to this embodiment, the provision of the intermediate member 70 allows the desired specific bit 55 to be detached from the portion 16 to be adjusted in the vertical direction if necessary during adjustment. Adjustment for each adjustment item or confirmation of the adjustment value can be performed, and more detailed adjustment can be performed. Therefore, the adjustment quality of the optical pickup 15 can be improved. Although the lower portion (the engaging portion with the convex portion) of the disk 60 of the bit 55 is formed in an elliptical spherical shape, the lower portion (the engaging surface with the convex portion) may be chamfered to have a disk shape. It may be formed. The disk 60 is a bit 5
5 can be formed integrally.

Next, a third embodiment of the present invention will be described with reference to FIG. 6A and 6B are configuration diagrams showing an adjustment bit unit portion according to a third embodiment of the present invention, wherein FIG. 6A is a plan view of an intermediate member,
(B) is a time chart showing the relationship between the bit and the intermediate member. In the third embodiment, a part of the intermediate member of the adjustment bit unit of the second embodiment is partially changed, and the others are substantially the same as those of the first and second embodiments. Are denoted by the same reference numerals, and description thereof is omitted.

The intermediate member 80 engages with the bit 55 to move the bit 55 in the vertical direction. The intermediate member 80 has a plate shape, and the oblong hole 81 through which the bit 55 is inserted is moved in the moving direction of the intermediate member 80 (arrows G, H direction), and convex portions 82 that are in contact with the lower surface of the disk 60 are formed on both sides of the oblong hole 81. In addition, the convex portion 82 is formed with an inclined portion 83 so as to be easily engaged with the disk 60. Note that the bit 55 moves in the vertical direction by the height of the projection 82. Further, a reference scale 84 for adjusting the movement position of the intermediate member 80 is provided. The position at which the convex portion 82 is formed is formed at the position of the adjusted portion 16 of the optical pickup 15 and at a position that establishes the relationship between the bit 55 and the intermediate member 80 described later.

Next, the adjustment order of the optical pickup will be described. The adjustment of the optical pickup 15 is related to each adjustment item, and there is an order of adjustment for efficient adjustment. First, the position of the detector is adjusted so that the light receiving position of the laser reflected light from the optical disk falls within a predetermined position range. Next, three spot rotation adjustment (in an optical pickup performing three-beam tracking control, a laser spot narrowed to three points by an objective lens was applied to three adjacent bits of the same track on the recording surface of an optical disc). Sometimes, the angle between the line connecting the three bits and the line connecting the three laser spots is adjusted. Third, radial skew adjustment (adjustment of the objective lens surface parallel to a line in the radial direction from the rotation center of the optical disk (parallel to the moving direction of the optical pickup)) is performed. Fourth, tangential skew adjustment [line in the circumferential (tangential) direction of the optical disk (perpendicular to the direction of movement of the optical pickup)
To adjust the objective lens surface in parallel). Fourth, the optical power volume is adjusted.

Next, the relationship between the bit and the intermediate member will be described. During the adjustment of the optical pickup 15, if necessary, the adjustment is performed independently of other adjustment items, or the pressure-contact state between the bit 55 and the adjustment unit 16 is temporarily released to confirm the adjustment value. May be caused. When the intermediate member 80 is moved in the direction of arrow G to release the pressure contact state, the disk 60 of the bit 55 engages with the convex portion 82 of the intermediate member 80, and the tip of the bit 55 is adjusted by the optical pickup 15. Detach from the part 16.

The relationship between the disk 60 of the bit 55 and the convex portion 82 of the intermediate member 80 is determined in accordance with the above-described adjustment order.
The position where the protrusion is formed, the length of the protrusion, and the like are set so that the tip of the protrusion 5 is separated from the adjusted portion 16 of the optical pickup 15. That is, when the intermediate member 80 is moved in the direction of arrow G, first, the position adjusting bit 5
5 is removed, and then a bit 55 for three-spot rotation adjustment
Third, the radial skew adjustment bit 55 is
Fourth, bit 55 for tangential skew adjustment
Depart from each other in turn. And all the bits 55
The detached state is maintained until is detached. Further, when the intermediate member 80 is moved in the direction of arrow H, the engagement state between the disk 60 and the projection 82 is released in the reverse order of the movement in the direction of arrow G, and the tip of the bit 55 is 15 is brought into pressure contact with the adjusted portion 16.

As described above, according to this embodiment, the time difference between the engagement of the disk 60 of the bit 55 with the projection 82 of the intermediate member 80 is provided, so that the detector position adjustment and the three-spot rotation adjustment can be performed. , Radial skew adjustment, tangential skew adjustment, and optical power adjustment can independently adjust or confirm the adjustment value. In addition, since the respective adjustment items can be operated in an independent state as needed, deviation of adjustment values of other adjustment items can be prevented.

[0033]

As described above, according to the present invention, the attachment / detachment of the bit to be adjusted and the bit (adjustment tool) of the optical pickup can be carried out at the same time at all locations and vertically with respect to the portion to be adjusted. In addition, the fluctuation of the portion to be adjusted due to the attachment and detachment of the adjustment tool is eliminated. Therefore, the readjustment after the adjustment is reduced, and the adjustment time of the optical pickup can be shortened. In addition, since the adjustment is performed in a state where all the adjustment target parts and the adjustment tool to be adjusted and the adjustment tool are crimped during the optical pickup adjustment, it is possible to reduce the related adjustment items and the fluctuation of the adjustment value after the adjustment. Further, by providing the intermediate member, a desired bit can be detached from the portion to be adjusted in the vertical direction as needed even during adjustment, so that finer adjustment is possible and the adjustment quality of the optical pickup can be improved. .

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an optical pickup adjusting device according to a first embodiment of the present invention, wherein FIG. 1 (a) is a plan view and FIG. 1 (b) is a front view.

FIGS. 2A and 2B are configuration diagrams showing an adjustment bit unit of the first embodiment, wherein FIG. 2A is a front view and FIG. 2B is a side view.

3A and 3B are configuration diagrams showing an adjustment bit unit according to a second embodiment of the present invention, wherein FIG. 3A is a front view and FIG. 3B is a side view.

4A and 4B are configuration diagrams showing a main part of an adjustment bit unit portion according to a second embodiment, wherein FIG. 4A is a front view, FIG. 4B is an enlarged cross-sectional view taken along line AA, and FIG. (D) is BB sectional drawing.

FIG. 5 is a view showing details of an intermediate member of the second embodiment;
(A) is a plan view, (b) is a side view, (c) is a CC cross-sectional view, and (d) is a side view showing a relationship between a bit and an intermediate member.

FIGS. 6A and 6B are configuration diagrams illustrating an adjustment bit unit according to a third embodiment of the present invention, wherein FIG. 6A is a plan view of an intermediate member, and FIG. 6B is a time chart illustrating a relationship between the bit and the intermediate member.

7A and 7B are diagrams schematically showing a conventional optical pickup adjusting device, wherein FIG. 7A is a plan view and FIG. 7B is a side view.

[Explanation of symbols]

 10 Optical pickup adjusting device 15 Optical pickup 16 Adjustable unit 20 Adjusting device main unit 30 Elevating mechanism unit 31 ···· Guide part 32 ········· Sliding part 33 ······· Air cylinder 40, 50 ··· Adjustment bit unit part 41,55 ····· Bit 42 ... ··· Unit base 43,46 ···· Holes 44, 58, knob 45, bit holder 48, compression coil spring 56, groove 57, shaft 60, disk 61 ... Hole 62 ... Edge cutting part 67 ... Scale 70, 80 ... Intermediate member 71, 81 ... Elliptical hole 72, 82 ... Protrusion 73, 83 ... Inclined part 74, 84: Standard scale

Claims (6)

[Claims] 1. An optical pickup adjusting device for adjusting an optical pickup, comprising: an adjusting device main body for holding the optical pickup; and a plurality of bits engaged with and rotated on a plurality of adjusted portions of the optical pickup. A bit holding means for rotatably and elastically holding the bit in the axial direction; a moving means for moving the bit holding portion in the bit axis direction; An optical pickup adjusting device, comprising: an excess pressure means for controlling the bit holding means so as to apply pressure. 2. The optical device according to claim 1, further comprising a pressure contact holding means for holding the bit in a pressure contact state with the adjusted portion until the adjusted portion is adhered and fixed after the adjustment of the optical pickup. Pickup adjustment device. 3. An optical pickup adjusting device for adjusting an optical pickup, comprising: an adjusting device main body that holds the optical pickup; and a plurality of bits that engage with and rotate at a plurality of adjusted portions of the optical pickup. A projecting portion provided in the middle of the bit and extending in the circumferential direction of the bit; a bit holding means rotatably and elastically holding the bit in the axial direction; an oblong hole through which the bit is inserted; An intermediate member having a protrusion formed along the side of the oblong hole, an elastic member for pressing the overhanging portion against the protrusion, and a moving means for moving the bit holding means in the bit axis direction. An optical pickup adjusting device, wherein the bit is movable in a direction perpendicular to a moving direction of the intermediate member by moving the intermediate member. 4. The optical pickup according to claim 1, wherein the convex portion is provided so that the three-spot rotation adjusting adjustment portion is disengaged from the bit after the skew adjustment adjusting portion. Item 4. The optical pickup adjusting device according to Item 3. 5. The optical pickup according to claim 1, wherein the tangential skew adjustment adjustment section is provided with the projection so that the engagement state with the bit is released after the radial skew adjustment adjustment section. The optical pickup adjusting device according to claim 3. 6. The optical pickup according to claim 1, wherein the convex portion is provided so that the optical power adjustment adjustment portion of the optical pickup is released from engagement with the bit after the other adjustment adjustment portion. Item 4. The optical pickup adjusting device according to Item 3.