JPH07176054A - Optical pickup and optical disk drive device and manufacture of the same device - Google Patents

Abstract

PURPOSE:To attain miniaturization and high rigidity and to facilitate adjustement of an optical axis and then to achieve low manufacturing cost. CONSTITUTION:The device is provided with the optical pickup equipped with a fixed optical part 16 consisting of a light source part 21, an optical element 26, photodetectors 29 and 31 and a housing 20, a moving optical part 17 having an objective lens 25 for converging light flux emitted from the fixed optical part 16 and a guide means 15 for guiding the moving optical part 17. Then, the guide means 15 is integrally formed with the housing 20 of the fixed optical part 16, and an optical axis 24 of the light flux emitted by the fixed optical part 16 is positioned by adjusting the optical element 26 or the light source part 21. Consequently, since the guide means is integrally formed with the housing of the fixed optical part, a part of fitting the guide means to the fixed optical part is not required to be worked with severe dimensional accuracy, thus reducing the cost. In addition, the adjustment of the optical axis is easy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a CD player and a CD.
The present invention relates to an optical pickup used in an optical information recording / reproducing device such as a ROM, an optical disc drive device, and a method for manufacturing the optical disc drive device.

[0002]

2. Description of the Related Art Conventionally, there has been proposed an optical disk drive device in which only a focusing actuator and a tracking actuator move and a main optical system uses a separate type optical head (optical pickup) arranged on a fixed side ( JP-A-4-11327). This prior art aims to provide a main structure of an optical disk drive device that is small in size, has high rigidity, and can suppress deviation of an optical axis due to thermal expansion of each component due to temperature rise, and an optical detection system including the optical axis. In the optical disk drive device including a separate optical head in which a main optical system fixed part having an optical disk and a movable part having a light point drive mechanism system are separated, and the both parts are connected by a variable length optical path, a linear arrangement is provided. The base supporting the spindle is fixed to one end side of the guide rail, and the main optical system fixing portion is fixed to the other end side with the guide rail as a positioning reference, and the middle portion of the guide rail is movable. It is configured to function as a part movement guide. In addition, the guide rail is connected to the movable part (moving optical system).
It is configured as a part of the magnetic circuit of the drive motor.

Here, FIG. 9 shows an example of the configuration of an optical disk drive device according to the above-mentioned conventional technique. In FIG. 9, 7 is a base that incorporates the spindle 2 and a spindle drive motor (not shown). The parallelism between the spindle mounting surface 7a formed on the base 7 for rotatably holding the spindle 2 and the flange surface 3a of the flange 3 mounted on the spindle 2 is maintained with high accuracy. 8
Reference characters a and 8b are columnar guide rails, one end of which is press-fitted into the base 7. The guide rails are made of martensitic stainless steel, tool steel, beryllium steel, etc. The shaft is machined so as to have a sufficient parallelism with the spindle mounting surface 7a, and the parallelism between the press-fitting hole central axes of both guide rails and the straightness of both guide rails are also machined with sufficient accuracy. Further, the diameter of each guide rail 8a, 8b is thicker than that of a conventional guide rail in order to withstand disturbance vibrations and the like.

A bearing 5c for holding at right angles a plurality of ball bearings 5d which are in sliding contact with the guide rails 8a and 8b, respectively.
The movable unit 5 supported by the reciprocating unit reciprocates in the radial direction (direction of the moving shaft 5a) of the recording medium (not shown). The main optical system fixing portion 4 is positioned and arranged with the other ends of the guide rails 8a and 8b as a reference. That is, the positions where the mounting brackets 4b, 4c forming the extension plane of the upper surface of the main optical system fixing portion 4 and the guide rails 8a, 8b contact each other, and the distance between the guide rails sandwiching the main optical system fixing portion 4 The positioning is determined by positioning the optical axis 4a in the direction of the variable length optical path with respect to the movable portion 5, and after the positioning, the mounting brackets 4b and 4c and the fixed plate 9 are sandwiched and fixed to both guide rails. To do.

[0005]

By the way, in the optical disk drive apparatus having the structure shown in FIG. 9, optical elements such as a semiconductor laser, a prism, and a photoelectric conversion element are already incorporated in the optical system fixing portion 4. Therefore, since the positional relationship between the optical axis 4a and the optical system fixing section 4 is fixed, in order to match the directions of the optical axis 4a and the moving axis 5a, the guide rails 8a and 8b and the optical system fixing section 4 are arranged. It is necessary to position and with extremely strict accuracy. Also, spindle 2
In order to position the moving shaft 5a of the movable part 5 and the optical axis 4a of the optical system fixing part 4, strict machining accuracy is required for the parallelism between the press-fitting hole central axes of the guide rails of the base 7 and the like. 8a, 8b, the optical system fixing portion 4 is required. Therefore, there is a problem that the processing cost of the parts is high.

The present invention has been made in view of the above circumstances, and a first object of the present invention is to easily perform an optical axis of a light beam emitted from a fixed optical section without performing dimensional precision processing that is costly. An object of the present invention is to provide an optical pickup capable of matching the directions of the moving axis of the moving unit and the moving unit. A second object of the present invention is to realize an optical pickup which is small in size, has high rigidity, and has little deviation of the optical axis due to temperature rise.

A third object of the present invention is to realize an optical pickup capable of improving the heat radiation effect of a semiconductor laser as a light source and extending the life of the semiconductor laser. A fourth object of the present invention is to provide a cover glass,
It is an object of the present invention to realize an optical pickup equipped with a fixed optical unit capable of preventing the entry of contaminants (dust, dust, etc.). A fifth object of the present invention is to realize an optical pickup that can be easily molded even with a housing of a fixed optical section having an optical system with a complicated optical path.

A sixth object of the present invention is to easily perform the rotation axis of the spindle motor, the movement axis of the moving optical section, and the light flux emitted from the fixed optical section without performing the dimensional precision processing that is costly. An object of the present invention is to provide an optical disk drive device that can be positioned with respect to the optical axis. A seventh object of the present invention is to provide an optical disk drive device capable of easily attenuating and absorbing the rotational vibration of the spindle motor and the vibration of the moving optical section.

An eighth object of the present invention is to provide a method of manufacturing an optical disk drive device capable of facilitating the integral molding of the housing of the fixed optical section, the spindle motor positioning section and the guide shaft and the assembling of the moving optical section. Is to provide. A ninth object of the present invention is to form a stator of a spindle motor integrally with a housing to achieve high precision, thinness, and high rigidity, and to simplify and install a process of assembling a wire material such as a power supply line. An object is to realize an optical disk drive device that can save space. A tenth object of the present invention is to provide a method for manufacturing an optical disk drive device capable of sufficiently increasing the thickness of the wall of a molding die to enable stable molding.

[0010]

In order to achieve the first object, the invention of claim 1 provides a light source section (21) and an optical element (2).
6) A movable unit having a fixed optical section (16) including a photodetector (29, 31) and a housing (20), and an objective lens (25) for condensing a light beam emitted from the fixed optical section (16). In an optical pickup comprising an optical part (17) and a guide means (15) for guiding the movement of the moving optical part (17), the guide means (15) is provided in the housing (20) of the fixed optical part (16). ) Is integrally molded, and the optical axis of the light beam emitted from the fixed optical section (16) is the optical element (26) or the light source section (2
It is characterized by being positioned by the adjustment of 1) (Figs. 1 and 2).

According to a second aspect of the present invention, in the optical pickup of the first aspect, the housing (20) of the fixed optical section (16) is made of resin, and the guide means (15). Is characterized by being insert-molded in the housing (20) (FIG. 1).

In order to achieve the third object, the invention according to claim 3 is the optical pickup according to claims 1 and 2, wherein a semiconductor laser (21), a semiconductor laser holder (22), an optical element (26) and a photoelectric conversion device are provided. A fixed optical part (16) including elements (29, 31) and a housing (20) holding them is provided, and a metal piece (23) is provided in the housing (20), and the semiconductor laser (21) and the semiconductor laser are provided. The holder (22) is characterized in that it is attached to the housing (20) through a metal piece (23) (FIG. 1).

According to a fourth aspect of the invention, in the optical pickup of the first, second and third aspects, at least a light flux of the housing (20 ') of the fixed optical section (16') is emitted. The portion to be marked is characterized by having a transparent color capable of transmitting the light flux (FIG. 6).

In order to achieve the fifth object, the invention of claim 5 is the optical pickup of claims 1, 2 and 3, wherein a tubular member (32, 33) is insert-molded inside the housing (20). , And an optical path is provided (FIGS. 3 and 4).

In order to achieve the sixth object, the invention of claim 6 provides a light source section (21), an optical element (26) and a photodetector (2).
Fixed optical part consisting of 9, 31) and housing (101)
(16), a moving optical part (17) having an objective lens (25) for condensing the light flux emitted from the fixed optical part (16), and a guide means (guide) for guiding the movement of the moving optical part (17). 15)
And a spindle motor (10
0) and a spindle motor positioning member (102), the fixed optical unit
The guide means (15) and the spindle motor positioning member (102) are integrally molded in the housing (101) of (16), and the optical axis of the light beam emitted by the fixed optical section is the optical element (26) or the light source section. Positioning is performed by adjusting (21) (FIG. 7).

In order to achieve the seventh object, the invention of claim 7 is the optical disk drive device of claim 6, wherein the housing (101) of the fixed optical part (16) and the spindle motor positioning member (102) are provided. The guide means (15) is integrally molded with resin, and the guide means (15) is insert-molded (FIG. 7).

In order to achieve the eighth object, the invention of claim 8 is the method of manufacturing an optical disk drive device of claim 6, wherein the moving optical part (17) is attached to the guide means (15). Positioned and fixed on the mold (110),
By pouring resin into the mold (110),
It is characterized in that the housing (101) of the fixed optical part (16), the spindle motor positioning member (102) and the guide means (15) are integrally molded (FIGS. 7 and 8).

According to a ninth aspect of the present invention, in the optical disc drive apparatus of the sixth aspect, at least a part (112) of the stator of the spindle motor (100) is a spindle motor positioning member (102). It is characterized in that the conductive member (113, 112a) is insert-molded on the housing (101) of the fixed optical part (16) or the spindle motor positioning member (102) (FIGS. 7 and 8).

In order to achieve the tenth object, the invention according to claim 10
The invention of claim 8 is the method for manufacturing an optical disk drive device according to claim 8, wherein at least the coil (1
It is characterized in that it is positioned and fixed to the molding die (110) in a state where it is attached to the guide means (15) after removing 20) (FIGS. 7 and 8).

[0020]

In the optical pickup and the optical disk drive device of the present invention, at least the housing of the fixed optical portion is integrally formed with the guide means. Therefore, it is necessary to perform processing with severe dimensional accuracy on the portion where the guide means is attached to the fixed optical portion. Therefore, the cost can be reduced. Further, since the optical axis of the fixed optical section and the guide means may be positioned by adjusting the light source section or the optical element, it is not necessary to perform the positioning adjustment between the fixed optical section and the guide means as in the conventional example.

[0021]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a configuration explanatory view of an optical pickup showing a first embodiment of the present invention. In FIG. 1, the spindle motor 10 is pressed against the spindle plate 11 by an unillustrated loading mechanism when the optical disk drive device operates. At this time, the spindle motor 10
Is positioned by the guide pin 12 and the hole 13. One end of a guide shaft 15 as a guide means is fixed to the spindle plate 11 by a leaf spring 14. The other end of the guide shaft 15 is insert-molded in the resin housing 20 of the fixed optical unit 16, and the positional accuracy between the housing 20 and the guide shaft 15 is set with high accuracy during insert molding.

There are four bearings 18 on the carriage 17 as a moving optical unit, which slides on the guide shaft 15. The seek motor coil 19 is fixed to the carriage 17, and the seek motor coil 1 is provided in a magnetic circuit (not shown).
By installing a part of the carriage 9, the carriage 17 can be moved while being guided by the guide shaft 15. The movement axis of the carriage 17 is determined by the position of the guide shaft 15. A semiconductor laser (LD) 21 as a light source of the fixed optical unit 16 is positioned and fixed to a plate 23 via a semiconductor laser holder 22.
The metal plate 23 is insert-molded in the housing 20. The light flux emitted from the semiconductor laser 21 is a collimator lens (CL) or a beam splitter (B).
The light is emitted from the fixed optical unit 16 via some optical elements (not shown) such as S). The optical axis 24 can move and adjust the semiconductor laser 21 and the holder 22 thereof and can be positioned in a direction matched with the direction of the moving axis of the carriage 17. The objective lens 2 is provided on the carriage 17 side.
5 and its focusing and tracking actuators, a reflecting mirror or a prism (not shown) for bending the optical path, and the like are installed. Further, 29 and 31 on the side of the fixed optical unit 16 are light receiving elements (photodiodes (PD) and the like) as photodetectors.

Next, the principle of adjusting the optical axis will be described with reference to FIG. In FIG. 2A, reference numeral 26 is a collimator lens provided on the semiconductor laser holder 22, and collimates the divergent light emitted from the semiconductor laser 21 to make it a carriage 17.
It is incident on the side objective lens 25. In order to make the moving axis of the objective lens 25 (this is the same as the moving axis of the carriage 17) parallel to the optical axis, the semiconductor laser 21 may be moved in the direction of the arrow. Further, in FIG. 2B, if the semiconductor laser 21 and its holder 22 are moved together,
The optical axis is positioned at the center of the objective lens 25. This can be adjusted by sliding the holder 22 on which the semiconductor laser 21 is already positioned and fixed on the plate 23 shown in FIG. Also, the plate 23 and the holder 2
Reference numeral 2 is made of metal and can radiate heat generated when the semiconductor laser 21 is turned on, so that the life of the semiconductor laser 21, which is reduced by heat, can be maintained for a long time.

Next, FIG. 3 shows a sectional view of the fixed optical section 16. In FIG. 3, the semiconductor laser 21 of the fixed optical unit 16
The light flux emitted by the collimator lens 26 becomes parallel light,
The light passes through the beam splitter 27 and is condensed by the objective lens 25 on the carriage 17 side to form a light spot on the optical disc 30. The reflected light from the optical disk 30 becomes parallel light by the objective lens 25, is reflected by the beam splitter 27 of the fixed optical unit 16, and is further directed to the light receiving element 29 by the second beam splitter 28, and the upward direction of the paper surface of FIG. Light flux toward the light-receiving element 31 located at. The tubes 32 and 33 and the plate 23 are sandwiched between the optical elements as shown in the drawing, so that an optical path space can be secured when the housing 20 is molded. Various arrangements are conceivable other than the arrangements of the optical elements shown here, but even if the arrangement is complicated, the tube is embedded so that the housing is not restricted by the direction in which the mold is removed during molding. Can be molded. In addition, 36 is the housing 2 from the pipe 33
It is a cover glass that prevents dust and dirt from entering the inside of 0.

Here, FIG. 5 shows molding dies 34 and 40 for the fixed optical portion 16. Reference numeral 35 in the figure is a gate for injecting resin. FIG. 4 shows the lower mold forming die 40.
The state where the insert parts of the fixed optical unit are arranged is shown in FIG. The plate 23 and the tubes 32 and 33 are placed in the grooves 41, 42 and 43 of the molding die 40, respectively. Similarly, the guide shaft 15 is also placed at a predetermined position. Mold forming die 4
The protrusion 44 of 0 is the beam splitters 27, 28 described above.
It is for creating a space for installing. After the placement of the insert parts, as shown in FIG. 5, the upper and lower mold forming dies 34 and 40 are overlapped with each other, and the resin is poured from the gate 35 to perform the mold forming, whereby the housing 20 can be formed.

Next, FIG. 6 is a sectional view of a fixed optical portion showing a second embodiment of the present invention. In the present embodiment, the housing 20 'of the fixed optical section 16' is made of a resin having a material having an extremely high light transmittance with respect to the luminous flux emitted by the semiconductor laser 21. For this reason, the tube and cover glass for securing the optical path as shown in FIG. 3 are unnecessary.

Next, FIG. 7 is an explanatory view of the configuration of an optical disk drive device showing a third embodiment of the present invention. This optical disk drive device has a structure in which the optical pickup described with reference to FIGS. 1 to 6 and a spindle motor for rotating the optical disk are integrated, and the fixed optical unit 16 and the carriage 17 have substantially the same structure. . In FIG. 7, a spindle motor 100 is a spindle motor positioning portion 102 of a housing 101 molded by resin.
It is rotatably supported by. The carriage 17 is linearly supported by a guide shaft 15, and the guide shaft 15 is insert-molded in the housing 101. The fixed optical unit 16 is provided integrally with the housing 101, and includes the semiconductor laser 21 and the semiconductor laser holder 2.
2, the plate 23, the light receiving elements 29, 31 and the like are attached to the housing 101. Spindle motor 100
Rotation and carriage 1 by a seek motor (not shown)
Although the vibration is generated by the movement of 7, the resin housing 101 having a better vibration absorbing property than the metal such as aluminum mediates the vibration, so that the vibrations are damped / absorbed and do not affect each other's motors. Reference numeral 120 is a seek motor coil for driving the carriage 17.

Next, a method of manufacturing the optical disk drive device shown in FIG. 7 will be described. FIG. 8 shows a mold 11
It is a figure which shows a mode that the insert components were arranged in 0. Figure 8
In the above, the carriage 17 was attached to the guide shaft 15 without attaching the seek motor coil 120, and then the guide shaft 15 was positioned in the groove provided in the protruding portion 111 of the molding die 110. Further, insert parts are arranged in the fixed optical portion 16 as in the first embodiment shown in FIG. The coil 112, which is a part of the stator of the spindle motor 100, includes the spindle motor positioning unit 102.
Of the coil 112, and the end 112a of the wire of the coil 112 is installed so as to protrude from the molding die 110. Further, the seek motor coil 120, the wire rod 113 used for energizing the focus actuator, the tracking actuator and the like are installed with one end projecting from the molding die 110 and the other end projecting from the protrusion 111 to the carriage. It is installed so as to project toward 17.

After the installation of the above insert parts is completed, the upper die (not shown) of the molding die is attached, the resin is poured into the groove 116 in the die, and the spindle motor positioning portion 102 is included. The housing 101 is molded. Carriage 17 after molding
Attach the seek motor coil 120 to the carriage 1
Each of the conductive terminals on the 7 side and the portion of the wire 113 protruding from the protrusion 111 are connected by a flexible cable or the like. The rotor 114 of the spindle motor 100 is also rotatably attached to the stator portion 112 of the spindle motor positioning portion 102 after molding. In the above manufacturing method, since the molding is performed before the seek motor coil 120 is attached to the carriage 17, the portion of the protrusion 111 of the molding die 110 can be made sufficiently large (because there is no need to provide a space for the coil). It is possible to prevent the resin from leaking to the carriage 17 side when the resin is injected. Also, seek motor coil 1 due to heat during molding
It is possible to prevent disconnection of the wire 20.

[0030]

As described above, in the optical pickup of the first aspect, since the guide means is integrally formed with the housing of the fixed optical portion, the portion where the guide means is attached to the fixed optical portion has dimensional accuracy. It does not require severe processing, resulting in cost reduction. Further, since the optical axis of the fixed optical section and the guide means may be positioned by adjusting the light source section or the optical element, it is not necessary to perform the positioning adjustment between the fixed optical section and the guide means as in the conventional example. Also,
It is possible to realize an optical pickup that is small in size, has high rigidity, and has little deviation of the optical axis due to temperature rise.

In the optical pickup of the second aspect, since the guide means is insert-molded in the housing of the fixed optical portion, the positional relationship between the fixed optical portion and the guide means can be easily and highly accurately made. Further, the members holding the respective optical elements of the fixed optical unit and the guide unit are made of the same resin and therefore have the same coefficient of thermal expansion, so that the deviation of the optical axis due to the influence of temperature can be reduced.

In the optical pickup of the third aspect, since the semiconductor laser of the light source section and the semiconductor laser holder are attached to the housing through the metal piece (plate), the position of the semiconductor laser holder is slid on the metal piece. Because it can be done, it can be adjusted smoothly. Further, since the heat generated by the semiconductor laser is radiated not only by the semiconductor laser holder but also by the metal piece, the heat radiation effect is improved, and the life of the semiconductor laser can be kept long.

In the optical pickup of the fourth aspect, since the part of the housing is made of a transparent color capable of transmitting the light beam, the cover glass for preventing the invasion of the contaminants (dust, dust, etc.) inside the fixed optical part is made the light beam. There is no need to specially provide it at the emission port portion, and the cost of parts and the mounting process cost can be reduced.

In the optical pickup of the fifth aspect, since the cylindrical member is insert-molded inside the housing to provide the optical path, the optical system having a complicated optical path can be provided without the restriction by the drawing direction of the mold. It is possible to realize the fixed optical unit having the same.

In the optical disk drive device of the sixth aspect, since the housing of the fixed optical part, the guide means and the spindle motor positioning member are integrally molded, the rotary shaft of the spindle motor, the guide shaft of the guide means and the fixed optical part. Since the position adjustment process with respect to the optical axis and the processing with strict dimensional accuracy are not required, the cost is reduced.

In the optical disk drive device of the seventh aspect, the housing of the fixed optical part and the spindle motor positioning member are integrally molded resin, and the guide means is insert-molded in them, so the fixed optical part and the guide are formed. The positional relationship between the means and the spindle motor can be easily made highly accurate. In addition, by integrally molding the housing and the spindle motor positioning member with resin, vibrations caused by the operation of the spindle motor,
Vibration generated by the moving operation of the moving optical unit can be attenuated / absorbed.

In the method of manufacturing an optical disk drive device according to an eighth aspect of the present invention, the movable optical unit is positioned and fixed in the mold with the guide unit attached, and resin is poured into the mold to form a housing for the fixed optical unit. Since the spindle motor positioning member and the guide means are integrally molded, it is not necessary to assemble the moving optical section to the guide means after molding. Therefore, it is not necessary to provide the moving optical section with a special mechanism for assembling the guide means.

In the optical disk drive apparatus of the ninth aspect, at least a part of the stator of the spindle motor is insert-molded on the spindle motor positioning member, so that the displacement of the moving optical unit and the fixed optical unit with respect to the rotation axis of the spindle motor is reduced. it can. Further, since it is also used (integrated molding), it can contribute to thinning and high rigidity. In addition, since a conductive member is insert-molded into the integrally molded housing of the fixed optical unit or the spindle motor positioning member, the assembly process of the signal line of the photoelectric conversion element of the fixed optical unit and the power supply line of the coil of the spindle motor stator is simplified. And installation space can be saved.

In the method of manufacturing an optical disk drive device according to a tenth aspect of the invention, since at least the coil of the moving optical part is removed and attached to the guide means, it is positioned and fixed in the mold, so that the coil is disconnected due to heat during the molding. There is no danger of Further, since it is not necessary to form the molding die by removing the seek motor coil, a space for thickening the wall of the molding die can be secured and stable molding can be performed.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of an optical pickup showing a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a principle of adjusting an optical axis of the optical pickup shown in FIG.

3 is a sectional view of a fixed optical part of the optical pickup shown in FIG.

FIG. 4 is an explanatory diagram of the method of manufacturing the fixed optical unit of the optical pickup shown in FIG. 1, showing a state in which the insert parts of the fixed optical unit are arranged in the mold.

5 is a view showing a mold for molding a fixed optical part of the optical pickup shown in FIG.

FIG. 6 is a sectional view of a fixed optical section showing a second embodiment of the present invention.

FIG. 7 is a structural explanatory view of an optical disk drive device showing a third embodiment of the present invention.

8 is an explanatory view of the method for manufacturing the optical disk drive device shown in FIG. 7, and is a view showing a state in which a fixed optical part, a moving optical part, and insert parts of a spindle motor are arranged in a molding die.

FIG. 9 is a diagram showing a configuration example of an optical disc drive device according to a conventional technique.

[Explanation of symbols]

 10, 100: Spindle motor 11: Spindle plate 12: Guide pin 13: Guide hole 14: Leaf spring 15: Guide shaft (guide means) 16, 16 ': Fixed optical part 17: Carriage (moving optical part) 18: Bearing part 19, 120: Seek motor coil 20, 20 ', 101: Housing 21: Semiconductor laser (light source) 22: Semiconductor laser holder 23, 23': Metal plate (metal piece) 24: Optical axis 25: Objective lens 26: Collimator Lens (optical element) 27, 28: Beam splitter (optical element) 29, 31: Light receiving element (photodetector) 30: Optical disk 32, 33: Tubular member 36: Cover glass 34, 40, 110: Molding mold 112: Stator coil 112a, 113: Conductive member 114: Rotor

Claims (10)

[Claims] 1. A fixed optical section comprising a light source section, an optical element, a photodetector and a housing, a moving optical section having an objective lens for condensing a light beam emitted from the fixed optical section, and a moving optical section of the moving optical section. In an optical pickup having guide means for guiding movement, the guide means is integrally molded in the housing of the fixed optical section, and the optical axis of the light beam emitted by the fixed optical section is adjusted by adjusting the optical element or the light source section. An optical pickup characterized by being positioned. 2. The optical pickup according to claim 1, wherein the housing of the fixed optical portion is made of resin, and the guide means is insert-molded in the housing. 3. A fixed optical section comprising a semiconductor laser, a semiconductor laser holder, an optical element, a photoelectric conversion element, and a housing for holding them, and a metal piece is provided on the housing, and the semiconductor laser and the semiconductor laser holder are made of metal. The optical pickup according to claim 1, wherein the optical pickup is attached to the housing via a piece. 4. The optical pickup according to claim 1, wherein at least a portion of the housing of the fixed optical section for emitting a light beam is made a transparent color capable of transmitting the light beam. 5. A tubular member is insert-molded inside the housing to provide an optical path.
Optical pickup described in a few. 6. A fixed optical section including a light source section, an optical element, a photodetector, and a housing, a moving optical section having an objective lens for condensing a light beam emitted from the fixed optical section, and the moving optical section. In an optical disk drive device including guide means for guiding movement, a spindle motor for rotating an optical disk, and a spindle motor positioning member, the guide means and the spindle motor positioning member are integrally formed in a housing of the fixed optical section. The optical disk drive device, wherein the optical axis of the light beam emitted from the fixed optical unit is positioned by adjusting the optical element or the light source unit. 7. The optical disk drive device according to claim 6, wherein the housing of the fixed optical portion and the spindle motor positioning member are integrally molded of resin, and the guide means is insert molded. 8. A method of manufacturing an optical disk drive device according to claim 6, wherein the movable optical unit is positioned and fixed to a mold with the guide means attached, and a resin is poured into the mold to fix. A method of manufacturing an optical disk drive device, comprising integrally molding a housing of an optical part, a spindle motor positioning member, and a guide means. 9. The spindle motor according to claim 6, wherein at least a part of the stator of the spindle motor is insert-molded into the spindle motor positioning member, and the conductive member is insert-molded into the housing of the fixed optical unit or the spindle motor positioning member. Optical disk drive device. 10. The method of manufacturing an optical disk drive device according to claim 8, wherein at least a coil of the moving optical part is removed and fixed to a mold with the coil attached to the guide means. Production method.