JP2002103348A - Method and apparatus for manufacturing optical part, and optical part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily provide a light reflecting surface to an optical part at a low cost and to enhance the mounting positional accuracy thereof. SOLUTION: An uncured resin 14 is injected in the cavity 13 of a mold 9 and a reflecting member 15 comprising a magnetic material such as iron or the like is next inserted in the cavity 13. Magnets 7a and 7b are arranged under the mold 9 and the reflecting membrer 15 inserted in the cavity 13 is attracted by the magnets 7a and 7b to be guided to a predetermined position to be located.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an optical component and an apparatus for manufacturing an optical component, and more particularly to an optical component manufactured by the method.

[0002]

2. Description of the Related Art In optical components such as a light emitting component (light source) and a light receiving component, a light reflecting surface is used in order to enhance light use efficiency. That is, in a light emitting component, light emitted from a light emitting element such as an LED chip is reflected by a light reflecting surface, so that light emitted backward is emitted forward. Further, in the light receiving component, the incident light is reflected on the light reflecting surface to be focused on a light receiving element such as a photodiode. As a method of providing a light reflecting surface on such an optical component, a rear surface of a transparent sealing resin that seals a light emitting element, a light receiving element, and the like is formed into a spherical shape or a parabolic surface, and the rear surface (resin interface) is formed. ) Is known as a light reflection surface utilizing total reflection.

[0003] However, the light reflection surface alone utilizing the total reflection at the resin interface between the sealing resin and the air does not necessarily have a high light reflection efficiency on the light reflection surface. It was necessary to improve the light reflection efficiency by depositing a metal thin film on the light reflection surface or performing white coating.

For this reason, in the conventional optical parts, the light reflecting surface has to be processed after resin molding, which complicates the manufacturing process of the optical parts and increases the number of working steps. Also,
The light reflecting surface required special processing such as metal deposition and white painting. For this reason, in conventional optical components,
The production yield was low and the production cost was high.

[0005] The metal thin film deposited on the resin surface is
Compared with a vapor-deposited film formed on a metal surface, the adhesion to the interface is poor, the light reflecting surface is likely to deteriorate, and there is a problem in the reliability and durability of the light reflecting surface.

[0006]

DISCLOSURE OF THE INVENTION An object of the present invention is to provide a method for manufacturing an optical component which can easily provide a light reflecting surface on an optical component at low cost and which has a high mounting position accuracy of the light reflecting surface. Is to do. Another object of the present invention is to provide an optical component manufacturing apparatus used in the manufacturing method and an optical component manufactured by the method.

According to a method of manufacturing an optical component according to the present invention, there is provided a method of manufacturing an optical component having a reflection member formed of a material containing a magnetic material, wherein the optical component is formed in a cavity of a molding die for resin-molding the optical component. The reflection member is inserted, the reflection member is guided to a predetermined position by a magnet arranged so as to face the cavity via a molding die, and the reflection member is sealed with a resin in the cavity.

According to the method of manufacturing an optical component according to the present invention, since the reflection member is formed separately from the resin, a magnetic metal or the like can be used as the reflection member, and the mirror processing is less restricted and plating is not required. Mirror processing becomes possible,
Light reflection efficiency is improved. Further, as compared with plating or vapor deposition on resin, the light reflecting surface due to plating of the reflecting member is less likely to be peeled off, and the reliability is improved. Further, by forming the reflecting member separately from the resin, processing after resin molding becomes unnecessary, and the manufacturing process of the optical component is simplified.

In addition, the reflecting member inserted into the cavity is guided to a predetermined position by the magnet, even though the reflecting member of another component is sealed in the resin. Positioning can be performed easily and reliably at a predetermined position, and a highly accurate optical component can be manufactured.

In an embodiment of the method of manufacturing an optical component according to the present invention, the reflecting member is fixed to a predetermined position in a cavity of the molding die by the magnet arranged on the lower surface of the molding die plate having the molding die. It is characterized by being guided to a position. According to this embodiment, the molding die plate having the molding die can be separated from the magnet, and the resin in the cavity can be heated and cured. By separating the magnet at the time of heat curing, deterioration of the magnet can be prevented.

In another embodiment of the method for manufacturing an optical component according to the present invention, a center axis of a contact surface between the inner surface of the molding die and the reflecting member includes a joint surface of a plurality of magnets. It is characterized by passing through a plane. According to this embodiment, since the center of the reflecting member and the center of the magnet can be aligned, when the bottom surface of the cavity is parallel to a plane perpendicular to the center axis of the cavity, the direction of the magnetic field lines passing through the reflecting member And the bottom surface of the cavity can be made parallel to each other, so that the reflection member can be guided to come into contact with the bottom surface of the cavity exactly without being lifted from the bottom surface of the cavity.

In still another embodiment of the method for manufacturing an optical component according to the present invention, the lead frame provided with the optical element is arranged such that its longitudinal direction is parallel to the direction of the magnetic field lines of the magnet. It is characterized by being arranged. Since the lead frame is strong against bending in the longitudinal direction, if the longitudinal direction of the lead frame and the direction of the magnetic field lines of the magnet are parallel, the lead bends even if a magnetic force is applied to the lead and the LED chip mounted on the lead, etc. Element chips are less likely to be displaced.

An optical component manufacturing apparatus according to the present invention includes a molding die having a cavity for receiving a reflection member formed of a material containing a magnetic material and injecting a resin, and a molding die separated from the molding die. And a magnet arranged to face the cavity.

The apparatus for manufacturing an optical component according to the present invention can use a reflecting member which is a resin and an individual component, and can attract and guide the reflecting member with a magnet. Similar effects can be obtained.

The optical component according to the present invention is characterized in that the reflecting member guided to a predetermined position in the cavity by the magnet arranged so as to face the cavity with the molding die therebetween is formed by the resin injected into the cavity. It is characterized by being sealed. In the manufacturing process of this optical component, the same operation and effect as those of the above-described optical component manufacturing method can be obtained.

The components of the present invention described above can be combined as much as possible.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIGS. 1 to 3 show one embodiment of the present invention, and FIG. 1 is a partially exploded view showing a structure of a manufacturing apparatus 2 for manufacturing an optical component 1. FIG. FIG. 2 is a cross-sectional view showing how the optical component 1 is molded using the manufacturing apparatus 2, and FIG. 3 is a cross-sectional view of the optical component 1 manufactured as a result. Here, as the optical component, L
A light emitting component in which a light emitting element such as an ED is sealed will be described, but the same applies to a light receiving component in which a light receiving element such as a photodiode is sealed.

First, the structure of the apparatus 2 for manufacturing the optical component 1 will be described with reference to FIG. A plurality of alignment guide pins 4 protrude from the upper surface of the manufacturing apparatus main body 3. An induction magnet plate 5 made of a non-magnetic material is placed on the upper surface of the manufacturing apparatus main body 3, and alignment guide pin holes 6 provided on the lower surface of the induction magnet plate 5 are used for positioning the manufacturing apparatus main body 3. The guide magnet plate 5 is positioned on the upper surface of the manufacturing apparatus main body 3 by being fitted to the guide pin 4.
On the upper surface of the induction magnet plate 5, two induction magnets 7
a and 7b are buried in the depression 8. The two guiding magnets 7a, 7b are joined to each other with their polarities reversed, and the N pole of one magnet 7a and the other magnet 7a are connected to each other.
The S pole of b is adjacent, and the S pole of one magnet 7a is adjacent to the N pole of the other magnet 7b.

A molding die plate 10 having a molding die 9 is placed on the upper surface of the induction magnet plate 5, and both sides of the induction magnet plate 5 and the molding die plate 10 are pressed by a pressing jig 12. The induction magnet plate 5 and the molding die plate 10 are positioned by pressing the outer peripheral surface. The molding die 9 is fitted and fixed in the concave portion 11 provided in the molding die plate 10, whereby the molding die 9 is also positioned.

In this positioning state, the molding die 9
Center c of the cavity 13 (therefore, the center of the reflection member)
Pass through the joint surface A of the magnets 7a and 7b. The induction magnet plate 5 has the magnets 7a and 7b arranged so that the joint surface A of the magnets 7a and 7b is perpendicular to the molding die plate 10. This allows
Even if the reflecting member is magnetized, the outer peripheral edge of the reflecting member comes into accurate contact with the cavity 13 of the molding die 9 without repelling against the magnets 7a and 7b, and the vertical direction in FIG. The mounting position of the reflection member can be made accurate. As a result, the guiding and sealing of the reflecting member with high positional accuracy can be repeatedly realized without increasing the number of special working steps.

In FIG. 1 and FIG. 2, only one molding die 9 is provided on the molding die plate 10. However, in practice, a large number of molding dies 9 are provided in the left-right direction and the depth direction of the drawing.
Are arranged on the molding die plate 10 so that a large number of optical components can be manufactured at one time. Further, the manufacturing apparatus main body 3 and the induction magnet plate 5 are positioned by the positioning guide pins 4 and the positioning guide pin holes 6, and the induction magnet plate 5 and the molding die plate 10 are positioned.
Are positioned by the pressing jig 12, but the positioning means of the manufacturing apparatus main body 3, the induction magnet plate 5, and the molding die plate 10 are not limited to these, and any positioning means can be used.

Next, a method for molding an optical component using the above-described manufacturing apparatus 2 will be described. First, the induction magnet plate 5 is placed on the manufacturing apparatus main body 3 and the alignment guide pins 4 and the alignment guide pin holes 6 are fitted to position the induction magnet plate 5. 5
The molding die plate 10 is placed on the
In step 2, the outer peripheral surfaces of the induction magnet plate 5 and the molding die plate 10 are pressed to position the molding die plate 10.
The induction magnet plate 5 is provided with 2 corresponding to each molding die 9.
The magnets 7a and 7b are provided, and at this time, the center c of each cavity 13 passes through the joint surface A of each magnet 7a and 7b.

When the manufacturing apparatus 2 is ready in this way, first, a molten transparent resin 14 is injected into the cavity 13 of the molding die 9. Next, as shown in FIG. 2, the reflection member 15 is inserted into the cavity 13 containing the molten resin 14. Here, the resin 14 can be injected after the reflection member 15 is inserted into the cavity 13. However, if the reflection member 15 is inserted first, bubbles are caught in the resin 14, resulting in a defective product. There is fear. On the other hand, if the reflecting member 15 is submerged in the resin 14 after the resin 14 is injected into the cavity 13, it becomes difficult for air bubbles to be caught in the resin 14.

The reflecting member 15 is formed by pressing a plate made of a magnetic material (ferromagnetic material) such as iron, punching out a hole 16 at the center, and forming a parabolic shape having a circular outer shape. Is mirror-finished by plating. If such a reflecting member 15 is used, it can be handled as an individual component separate from the resin 14, so that a mirror surface can be formed by plating a metal, and the light use efficiency can be improved. . In addition, since the plating process is lower in cost than the deposition of a metal thin film, the use of such a reflecting member 15 makes it possible to produce a light reflecting surface with high light reflection efficiency at low cost. Further, the adhesiveness at the interface is improved as compared with a vapor-deposited film or the like, so that a highly reliable light reflecting surface can be obtained.

Further, by forming the reflecting member 15 as an individual component, it is not necessary to add a special process for forming a light reflecting surface during or after the molding of the optical component 1. The first manufacturing process is simplified, and the number of working processes can be reduced.

The shape and size of the outer peripheral edge of the reflecting member 15 are equal to the shape and size of the inner corner 17 of the cavity 13.
And the outer peripheral edge of the reflecting member 15 is brought into contact with the inner corner 17 of the cavity 13 so that the reflecting member 15 can be positioned in the cavity 13. Further, in the reflection member 15 having an outer shape other than a circular shape, the outer peripheral edge is
The mounting direction of the reflection member 15 can be made uniform by contacting the inner corner 17 of the third member 3.

However, since the viscosity of the resin 14 is high, it is difficult to accurately bring the reflecting member 15 into contact with the inner corner of the cavity 13 only by gravity. In this manufacturing apparatus 2, the magnets 7a and 7b are opposed to the cavity 13 of the molding die 9.
Is arranged, the reflecting member 15 is attracted downward by the magnetic force of the magnets 7a and 7b, the reflecting member 15 is forcibly brought into contact with the inner corner 17 of the cavity 13, and the reflecting member 15 can be positioned. . Therefore, there is no need for a step of pushing the reflection member 15 into the interior of the cavity 13,
The reflection member 15 can be positioned without increasing the number of steps.

After the reflecting member 15 is inserted into the cavity 13 and positioned by the action of the magnets 7a and 7b, the LE 19 is attached to the stem 19 at the tip of the lead 18 as shown in FIG.
Lead frame 22 having D chip 20 mounted and bonded to other lead 21 by wire bonding
Is inserted into the cavity 13 of each molding die 9, and the chip 2
The lead frame 22 is held so that 0 is a predetermined position. The molding die plate 10 fixes the molding dies 9 at equal intervals so that the LED chip 20 mounted on the lead frame 22 is located in the center of the cavity 13.

In this state, the molding die plate 10 is separated from the induction magnet plate 5, placed in an oven, and heated to cure the resin 14. When the resin 14 has hardened, it is taken out of each molding die 9 and the leads 18 and 21 are connected to the lead frame 2.
2, the optical component 1 having the structure as shown in FIG. 3 is obtained.

In this optical component 1, the LED chip 20 is partly mounted and wire-bonded to the lead, and the reflective member 15 is formed of a circular parabolic shape having a hole 16 punched out in the center thereof. (Mold resin) 14. Also, the molding die 9
Since the spherical concave portion 23 is formed at the center of the bottom surface of the optical component 1, the lens portion 24 is formed on the front surface of the optical component 1.

According to such an optical component 1, the light emitted forward from the LED chip 20 is collected by the lens unit 24 and emitted forward. In addition, LED
The light emitted obliquely from the chip 20 is totally reflected on the front surface (resin interface) of the transparent resin 14 and travels to the reflection member 15, is reflected by the reflection member 15, and then passes through the front surface of the resin 14. It is emitted forward. Therefore, if the outer peripheral edge of the reflecting member 15 does not accurately abut on the outer peripheral corner of the front surface of the resin 14, the light emitted forward decreases due to light leakage, but according to the manufacturing method described above, , Magnets 7a, 7b
Because the outer peripheral edge of the reflecting member 15 is accurately brought into contact with the outer peripheral corner of the front surface of the resin 14, the reflecting member 15 can be sealed at a position where light can be ideally emitted forward.

Next, the operation of the magnets (permanent magnets) 7a and 7b for guiding the reflection member 15 will be described in detail. Now, for comparison, consider a case where one magnet 7 is arranged so as to face the cavity 13 as shown in FIG. In this case, the line of magnetic force of the magnet 7 is equal to the N of one magnet 7 as shown in FIG.
Since the light exits from the pole and enters the opposite S pole, the S pole side of the reflecting member 15 magnetized by the magnet 7 is attracted to the N pole of the magnet 7, and the N pole side repels the N pole of the magnet 7, As a result, the reflecting member 15 rises up along the lines of magnetic force.

On the other hand, when the magnets 7a and 7b having the same strength are joined in a state where the N pole and the S pole are reversed, as shown in FIG. 5, the lines of magnetic force move from the N pole of one magnet 7a. It exits and enters the south pole of the other magnet 7b. The S pole side of the magnetized reflecting member 15 is attracted to the N pole of the magnet 7a, and the N pole side is attracted to the S pole of the magnet 7b.
Is parallel to the surfaces of the magnets 7a and 7b along the lines of magnetic force,
It is attracted by the magnets 7a and 7b.

The center of the cavity 13 and the magnets 7a,
If the center of the magnet 7a, that is, the joining surface A of the magnets 7a and 7b is shifted, the reflecting member 15 is also shifted from the center of the magnets 7a and 7b, so that the reflecting member 15 is inclined along the line of magnetic force as shown in FIG. For this reason, in this embodiment, the magnets 7a and 7b having the same magnetic force and the same size are used, and the center c of the cavity 13 passes through the joint surface A of the magnets 7a and 7b as described above.

Further, the longitudinal direction of the lead frame 22 is parallel to the arrangement direction of the magnets 7a and 7b. The leads 18 and 21 are unlikely to bend in the longitudinal direction of the lead frame 22, but are easily bent in a direction (thickness direction) orthogonal to the longitudinal direction of the lead frame 22. For this reason, as shown in FIG. 7, when the longitudinal direction of the lead frame 22 is orthogonal to the arrangement direction of the magnets 7a and 7b, for example, the tips of the leads 18 and 21 are magnetized to S poles and the roots are N poles. When the magnets 7a are magnetized, the tips of the leads 18 and 21
It is drawn to the pole side, and the position of the LED chip 20 shifts. On the other hand, if the longitudinal direction of the lead frame 22 is parallel to the arrangement direction of the magnets 7a and 7b, even if the leads 18 and 21 are attracted to any one of the magnets 7a and 7b, the leads 18 and 21 are less likely to bend and the LED chip 20 is not bent. Is less likely to shift.

Further, when a plurality of sets of magnets 7a, 7b are arranged along each molding die 9, the magnets 7
In FIGS. 8A and 8B, the arrangement of the north pole and the south pole is reversed as shown in FIG. N of adjacent magnets 7a and 7b
If the arrangement of the poles and S poles is the same, as shown in FIG.
Lines of magnetic force leak between the adjacent pairs of magnets 7a and 7b, so that when the molding die plate 10 is removed from the induction magnet plate 5, it is easily affected by the leakage magnetic force even with a slight lateral displacement. The position of the reflecting member 15 becomes unstable. On the other hand, if the arrangement of the N pole and the S pole in the adjacent pairs of magnets 7a and 7b is reversed, the influence of the leakage magnetic force is unlikely to occur as shown in FIG.

Since a magnet is generally magnetized by magnetizing the front and back surfaces, a single magnet having a wide pole surface (N-pole surface, S-pole surface) requires a special magnet, which is costly. . However, if two magnets are reversed and joined as in this embodiment, a wide pole surface can be easily obtained.

As is clear from the above description, the induction magnet uses two permanent magnets in this embodiment, but is not limited to two, and may be an even number (for example, four,
(For example, eight magnets) may be used in which the north pole and the south pole are alternately reversed and joined. The molding die 9 and the molding die plate 10 need not be an antiferromagnetic material that blocks magnetic force, and may be a non-magnetic material or a magnetic material.

FIGS. 11 to 15 show modifications of this embodiment. FIG. 11 shows the reflecting member 15 having a cylindrical shape, FIG. 12 shows the reflecting member 15 inclined with the front surface of the resin 14, FIG. 13 shows the reflecting member 15 having no hole at the center, and FIG. FIG. 15 shows an example in which a parabolic lens section 24 is formed in an annular shape on the front surface of a resin 14, and FIG. 15 shows an example in which the front surface of the resin 14 is formed flat. In addition, the outer peripheral shape of the reflection member 15 may be a polygon, an ellipse, or the like. The outer shape of the optical component 1 itself may be cylindrical as shown in FIGS. 11, 13, and 15, or may be triangular pyramid or trapezoidal as shown in FIGS. However, when the reflecting member is inclined, it is desirable that the center of the reflecting member be shifted from the joint surface of the magnet.

(Second Embodiment) FIG. 16 is a sectional view showing the structure of an optical component according to another embodiment of the present invention. FIG. 4 shows a cross-sectional view of another optical component manufactured by the manufacturing method described in Example 1. In this optical component 31, only the reflection member 15 is sealed in the transparent resin 14, and the hole 16 of the reflection member 15 is formed.
A bullet-shaped space 32 is formed from the back so as to pass through the inside. This optical component 31 can house a bullet-shaped LED element or the like in the space 32 and can be used as an external lens with high light use efficiency.

FIGS. 17 and 18 show modifications, in which the optical component 33 shown in FIG. 17 has a space 32 opened on the side surface, and the optical component 34 shown in FIG. 18 has the space 32 opened on the front surface. .

This optical component is also manufactured by a method substantially similar to that of the first embodiment except that a partial mold or the like for forming a space is used.

(Third Embodiment) FIG. 19 is a sectional view showing the structure of an optical component according to still another embodiment of the present invention. The reflecting member 15 is a mirror-finished surface of a member made of a magnetic material such as iron, which is formed into a circular parabolic shape and plated. An inner corner is formed on the bottom surface of the cavity 13 of the molding die 9 by providing a projection projecting into the concave surface of the reflection member 15. Then, the reflecting member 15 is inserted into the cavity 13 of the molding die 9, and the reflecting member 15 is attracted by a magnet to guide the outer peripheral edge of the reflecting member 15 to contact the inner corner of the outer periphery of the convex portion. Thus, the reflection member 15 is positioned, and the resin 14 is cured in that state. As a result, in the manufactured optical component 35, only the back surface of the reflection member 15 is sealed with the resin 14,
The front surface of the reflection member 15 is exposed. This optical component 35
Then, in the reflection material made by conventional resin processing,
Instead of processing the reflective surface to increase the reflection efficiency of metal deposition, white paint surface, etc., the mirror surface by plating is used as the reflective surface, the reliability of the light reflective surface is high, and furthermore, the conventional optical parts Without changing the structure, it is possible to manufacture a reflector with high mounting position accuracy at low cost.

[0044]

According to the present invention, since the reflecting member is formed separately from the resin, it is possible to use a magnetic metal or the like as the reflecting member, thereby reducing the restrictions on mirror finishing and enabling mirror finishing by plating. And the light reflection efficiency is improved. Further, as compared with plating or vapor deposition on resin, the light reflecting surface due to plating of the reflecting member is less likely to be peeled off, and the reliability is improved. Further, by forming the reflecting member separately from the resin, processing after resin molding becomes unnecessary, and the manufacturing process of the optical component is simplified.

In addition, despite the fact that the reflecting member of another component is sealed in the resin, the reflecting member inserted into the cavity is guided to a predetermined position by the magnet. Positioning can be performed easily and reliably at a predetermined position, and a highly accurate optical component can be manufactured.

[Brief description of the drawings]

FIG. 1 is a partially exploded sectional view showing an optical component manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a state in which an optical component is manufactured using the above manufacturing apparatus.

FIG. 3 is a cross-sectional view showing the optical component according to the first embodiment.

FIG. 4 is a diagram illustrating a state in which a reflecting member is guided by one magnet.

FIG. 5 is a diagram illustrating a state in which a reflecting member is guided by two magnets.

FIG. 6 is a diagram illustrating a state in which the reflection member is guided when the center of the cavity (reflection member) and the joint surface of the magnet are displaced.

FIG. 7 is a diagram showing an inconvenience when the longitudinal direction of the lead frame is orthogonal to the magnet arrangement direction.

FIG. 8 is a schematic view showing an arrangement of two adjacent sets of magnets.

FIG. 9 is a diagram illustrating a state in which a reflecting member is guided when the pole arrangement of two adjacent magnets is the same.

FIG. 10 is a diagram showing a state in which a reflecting member is guided when the pole arrangement of two adjacent magnets is reversed.

FIG. 11 is a sectional view showing a modification of the optical component according to the embodiment.

FIG. 12 is a sectional view showing another modified example of the optical component according to the embodiment.

FIG. 13 is a sectional view showing still another modified example of the optical component according to the embodiment.

FIG. 14 is a sectional view showing still another modified example of the optical component according to the embodiment.

FIG. 15 is a sectional view showing still another modified example of the optical component according to the embodiment.

FIG. 16 is a sectional view showing a structure of an optical component according to another embodiment of the present invention.

FIG. 17 is a sectional view showing a modification of the optical component according to the embodiment.

FIG. 18 is a sectional view showing another modification of the optical component according to the embodiment.

FIG. 19 is a sectional view showing a structure of an optical component according to still another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 5 Induction magnet plate 7a, 7b Magnet 9 Molding die 10 Molding die plate 13 Cavity 14 Resin 15 Reflecting member 17 Inner corner 22 Lead frame 24 Lens part c Center A Joining surface

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification FI FI Theme Court ゛ (Reference) B29L 11:00 G02B 7/18 Z (72) Inventor Katsuyuki Nishi 10 Hanazono Todocho, Ukyo-ku, Kyoto-shi, Kyoto Omron Co., Ltd. (72) Sadayuki Matsumoto, inventor, 10-10 Hanazono Todocho, Ukyo-ku, Kyoto, Kyoto Omron Co., Ltd. (72) Teppei Aoyama, 1-7-16 Hirorocho-cho, Chuo-ku, Osaka, Osaka Co., Ltd. (72) Inventor Masaru Nagata 15-5 Ikeda-Kitacho, Neyagawa-shi, Osaka F-term (reference) 2H042 DA10 DA17 DA20 DC01 DC08 DD06 DE04 2H043 CA01 CA09 CE00 4F202 AA36 AH37 AM29 CA01 CB01 CB11 CB17 CK25 CN01 CN17 CQ06 4F204 AA36 AH37 AM29 EA07 EB01 EB11 EE02 EE16 EE30 EF05 EF27 EF49 EK13 EK24 EK26 EK27 EW06

Claims (6)

[Claims] 1. A method of manufacturing an optical component having a reflection member formed of a material containing a magnetic material, comprising: placing the reflection member in a cavity of a molding die for resin-molding the optical component; A method for manufacturing an optical component, comprising: guiding a reflection member to a predetermined position by a magnet disposed so as to face the cavity with a gap therebetween, and sealing the reflection member with a resin in the cavity. 2. The reflection member is guided to a predetermined position in a cavity of a molding die by the magnet disposed on a lower surface of a molding die plate having the molding die. 3. The method for producing an optical component according to claim 1. 3. The optical component according to claim 1, wherein a center axis of a contact surface between the inner surface of the molding die and the reflection member passes through a plane including a joint surface of a plurality of magnets. Manufacturing method. 4. The optical component according to claim 1, wherein the lead frame provided with the optical element is disposed so that a longitudinal direction thereof is parallel to a direction of a magnetic field line of the magnet. Manufacturing method. 5. A molding die having a cavity for receiving a reflection member formed of a material containing a magnetic material and injecting a resin, and is disposed so as to face the cavity with the molding die separated. Manufacturing apparatus for an optical component having a magnet. 6. A reflecting member guided to a predetermined position in a cavity by a magnet arranged so as to face a cavity with a molding die therebetween is sealed by a resin injected into the cavity. Optical components.