WO2006046437A1 - 光学部品の製造装置 - Google Patents
光学部品の製造装置 Download PDFInfo
- Publication number
- WO2006046437A1 WO2006046437A1 PCT/JP2005/019099 JP2005019099W WO2006046437A1 WO 2006046437 A1 WO2006046437 A1 WO 2006046437A1 JP 2005019099 W JP2005019099 W JP 2005019099W WO 2006046437 A1 WO2006046437 A1 WO 2006046437A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical component
- manufacturing apparatus
- component manufacturing
- gate
- mold
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims description 42
- 239000000463 material Substances 0.000 claims description 8
- 239000004519 grease Substances 0.000 claims description 5
- 230000003746 surface roughness Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 abstract description 37
- 239000011347 resin Substances 0.000 description 36
- 229920005989 resin Polymers 0.000 description 36
- 239000004033 plastic Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 14
- 239000000088 plastic resin Substances 0.000 description 13
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 239000010419 fine particle Substances 0.000 description 10
- 230000007423 decrease Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000007747 plating Methods 0.000 description 3
- 229920005672 polyolefin resin Polymers 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000010954 inorganic particle Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 101150059062 apln gene Proteins 0.000 description 1
- SJKRCWUQJZIWQB-UHFFFAOYSA-N azane;chromium Chemical compound N.[Cr] SJKRCWUQJZIWQB-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00413—Production of simple or compound lenses made by moulding between two mould parts which are not in direct contact with one another, e.g. comprising a seal between or on the edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/808—Lens mold
Definitions
- the present invention relates to an optical component manufacturing apparatus that molds an optical component. More specifically, the present invention relates to an optical component manufacturing apparatus that targets small parts (with an outer diameter of 2mn! To 12mm) and high precision (surface roughness Ra20nm or less). Background art
- optical parts such as objective lenses have been manufactured by injection molding of thermoplastic resin such as plastic (for example, see Patent Document 1 and Patent Document 2). Molding optical parts using plastic makes it possible to quickly produce products with uniform shapes, making them suitable for mass production. Optical devices that use plastic lenses are becoming smaller and higher in performance year by year, and the demand for smaller and more accurate plastic lenses is also increasing.
- the multi-cavity mold has one sprue part arranged in the center of the fixed mold, and multiple runners extend around the sprue part. In other words, the lens transfer part is provided symmetrically around the sprue part.
- Patent Document 1 Japanese Patent Laid-Open No. 11 42685
- Patent Document 2 JP 2001-272501 A
- gate thickness the thickness of the gate portion
- the resin flow path is rapidly narrowed at the gate portion.
- the resin becomes hot and promotes deterioration of the resin.
- stress is concentrated near the gate and birefringence becomes prominent.
- mold release deformation is likely to occur, and the stability of the molded product is lacking.
- the present invention has been made to solve at least one of the problems of the above-described conventional optical component manufacturing apparatus.
- the problem is to provide an optical component manufacturing apparatus that is capable of ensuring good transferability and ensuring the stability of a molded product in a small and high-precision optical component manufacturing apparatus.
- An optical component manufacturing apparatus designed to solve this problem has a fixed mold and a movable mold provided to be movable toward and away from the fixed mold. With the side mold and movable side mold in pressure contact with each other, fill the product transfer section with a grease material through a part of the sprue, the runner section, and the gate section, resulting in an outer diameter of 2mn!
- An optical component manufacturing apparatus that simultaneously molds a plurality of optical components that are within a range of up to 12 mm and whose optical surface has a surface roughness of Ra 20 nm or less, and satisfies the following condition (1): Yes.
- the optical component manufacturing apparatus includes the dimensions of the gate portion and the runner portion. Are defined so as to satisfy the above condition (1). In other words, by satisfying condition (1)
- condition (2) it is possible to avoid mold release deformation at the time of mold opening or protruding. This ensures the stability of the molded product.
- the shape of a part of the sprue satisfies the following conditions (3) to (5).
- the optical component manufacturing apparatus of the present invention defines the dimensions of the sprue part so as to satisfy the above conditions (3), (4), and (5).
- condition (3) good fluidity of the grease is secured in a part of the sprue. Therefore, good transferability is ensured.
- Satisfying condition (4) further improves the fluidity of the resin and ensures good transferability.
- fixing residue and mold release defects are eliminated, and molding stability is ensured.
- Satisfying condition (5) also eliminates immobilization residue and mold release defects, and ensures molding stability. In addition, stringing is also suppressed.
- optical component manufacturing apparatus of the present invention by defining the dimensions of the gate portion, the runner portion, and the sprue part so as to satisfy the above conditions (1) to (5), Good fluidity of the resin is ensured. Furthermore, mold release deformation when the mold is opened or extended is avoided. Therefore, an optical component manufacturing apparatus has been provided that is capable of ensuring good transferability and ensuring the stability of molded products in small and highly accurate optical component manufacturing apparatuses.
- FIG. 1 is a view showing a schematic configuration (die separation) of a plastic lens molding machine according to an embodiment.
- FIG. 2 is a diagram showing a schematic configuration (die pressing) of a plastic lens molding machine according to an embodiment.
- FIG. 3 is a cross-sectional view showing a schematic configuration of a plastic lens molding die.
- FIG. 4 is a view showing a pressure contact surface of a plastic lens mold.
- FIG. 5A is a diagram showing a cross section (gate height ⁇ gate width) of a rectangular gate portion.
- FIG. 5B is a diagram showing a cross section (gate height ⁇ gate width) of the round gate portion.
- FIG. 6A is a view showing a cross section (gate height> gate width) of a rectangular gate portion.
- FIG. 6B is a view showing a cross section (gate height> gate width) of a round gate portion.
- FIG. 7A is a view showing a cross section (horizontally long) of a rectangular runner portion.
- FIG. 7B is a view showing a cross section (horizontally long) of the round runner portion.
- FIG. 8A is a view showing a cross section (vertically long) of a rectangular runner portion.
- FIG. 8B is a view showing a cross section (vertically long) of the round runner portion.
- FIG. 9 is a diagram showing the shape of a part of a sprue.
- FIG. 10 is a cross-sectional view showing the overall configuration of a molding die.
- the present invention is applied to a plastic lens molding machine.
- the molded plastic lens has an outer diameter of 2mn! It is within the range of ⁇ 12mm and the surface roughness of the optical surface is Ra20nm or less.
- the plastic lens consists of a lens part and a flange part formed on the outer periphery of the lens part.
- the flange part is a part supported by a lens holder or the like.
- This plastic lens is used, for example, in an optical pickup optical system such as an optical pickup device and an imaging optical system such as a mobile phone with a camera function.
- FIG. 1 and FIG. 2 show a schematic configuration of the molding machine 100 of the present embodiment.
- Fig. 1 shows a state in which the molds are separated, and
- Fig. 2 shows a state in which the molds are pressed.
- Figures 3, 4 and 10 show the schematic configuration of the mold of this embodiment.
- Figures 3 and 10 show the side cross-section in the pressed state, and
- Fig. 4 shows the pressed surface of the fixed mold.
- FIG. 3 is an enlarged view of the broken line portion of FIG.
- the plastic lens molding machine 100 of the present embodiment is capable of being pressed and separated from the stationary platen 10 having the stationary mold 1 and the stationary mold 1 as shown in FIG. 1 or FIG. And a movable platen 20 having a movable mold 2 provided on the substrate.
- the molding machine 100 of this embodiment is a compact molding machine with a clamping force of about 15 tons (150 kN).
- the fixed platen 10 is provided with a molten resin injection port, and the injection unit 80 injects the resin into the mold.
- the injection unit 80 may be a pre-bra type or an in-line screw type.
- the molding machine 100 has a cavity 11 inserted into the base mold 13 of the stationary mold 1, and a core 12 is inserted into the cavity 11. ing.
- a cavity 21 is inserted into the base mold 23 of the movable mold 2, and The core 22 is inserted into the cavity 21.
- the cavity and core are configured as a base mold nesting.
- the member on which the transfer part that forms the lens part of the plastic lens is formed is called “core”, and the member on which the transfer part that forms the flange part located on the outer periphery of the lens part is formed is called “cavity”. .
- the base mold 13 has a rectangular outer shape as viewed from the pressure contact surface. Furthermore, as for cavity 11, as shown in Fig. 4, the outer shape seen from the pressure contact surface is rectangular. For core 12, the outer shape seen from the pressure contact surface is circular. The configuration of the movable mold 2 is the same.
- the base mold 13 is provided with a pocket (dent) for accommodating the cavity 11, and the width of the pocket is slightly wider than the width of the cavity 11.
- the gap between the cavity 11 and the base mold 13 generated when the cavity 11 is accommodated is filled with a spacer block. With this spacer block, the position of the cavity 11 is adjusted and the cavity 11 is fixed.
- This gap is composed of a product transfer portion 50, a gate portion 51, a runner portion 52, and a sprue portion 53 that becomes a flow path of the molten resin from the molten resin injection port to the runner portion 52.
- metal plating it is preferable to apply metal plating to the surface of the transfer portion of the transfer member.
- the thickness of the metal plating layer should be determined appropriately within the range of 10 to: LOO / zm.
- an optical path difference providing structure for example, a diffractive lens
- surface treatment with chromium nitride, titanium nitride, diamond-like carbon (DLC), etc. may be performed to improve mold release and protect the mold. This improves the fluidity of the resin in the mold during molding and transfer, and the releasability (removability) when taking out the molded product from the mold.
- the molding machine 100 of this embodiment is a molding machine for multi-piece production, but for the sake of convenience of explanation, in the following explanation, it will be explained as a manufacturing process of one plastic lens.
- the molten resin is partially spl
- the product flows into the product transfer section 50 through the inner part 52 and the gate part 51 in this order.
- the movable mold 2 is separated from the fixed mold 1. Then, the molded product is taken out by an ejector or the like.
- the molded product that has been taken out consists of a flange part positioned on the outer periphery of the optical surface of the plastic lens and a part corresponding to the sprue, the runner part 52 and the gate part 51. Has been. Then, the plastic lens is extracted by cutting off the part corresponding to the gate part 51 in the subsequent cutting process.
- the molding conditions for the plastic lens include, for example, when amorphous polyolefin-based resin is used as molten resin, the mold temperature is 120 ° C, the resin temperature is 280 ° C, and the injection speed is The degree is 50 mmZsec and the holding pressure is lOOMPa.
- amorphous polyolefin resin include Zeonex (registered trademark: Nippon Zeon) and Apel (registered trademark: Mitsui Chemicals).
- the plastic resin used in the molding machine 100 of the present embodiment may be a transparent resin material generally used as an optical material.
- a resin as described in Japanese Patent Application No. 2004-144951, Japanese Patent Application No. 2004-144953, Japanese Patent Application No. 2004-144954, and the like.
- Specific examples include acrylic resin, cyclic olefin resin, polycarbonate resin, polyester resin, polyether resin, polyamide resin, polyimide resin, and the like.
- the refractive index of plastic resin decreases with increasing temperature, but the refractive index of most inorganic particles increases with increasing temperature. Therefore, there is a known technology that prevents these refractive index changes by causing these properties to cancel each other.
- inorganic particles having a size of 30 nm or less, preferably 20 nm or less, more preferably 10 to 15 nm are dispersed in the base resin.
- the molding machine 100 includes a gate section 51 having a rectangular cross section and a runner part 52 having a circular cross section. Then, the dimension in the height direction of gate part 51 (dimension a in FIG. 3) is “gate height”, and the dimension in the width direction of gate part 51 (dimension b in FIG. 4) is “gate width”. The length of part 51 (dimension L1 in Fig. 3) is the "gate length”. In addition, the height direction of the runner 52 The dimension (dimension A in Fig. 3) is the "runner height” and the dimension in the width direction of the runner 52 (dimension B in Fig. 4) is the "runner width".
- the smaller dimension of the gate height and the gate width is referred to as “gate thickness”.
- the gate height is the gate thickness.
- the gate width is the gate thickness.
- the gate height is the gate thickness.
- the larger dimension of the runner height and the runner width is defined as “runner one thickness”.
- runner one thickness when the cross section of the runner section 52 is horizontally long, the lateral dimensional force S runner thickness is obtained.
- Fig. 8A and Fig. 8B when the section of the runner 52 is vertically long, the dimensional force runner thickness is obtained.
- the runner part 52 does not necessarily have the same runner thickness in the lead direction of the resin. Therefore, the maximum runner thickness in the flow path from the sprue part 53 to the gate part 51 is defined as the “maximum runner thickness”.
- the length from the molten resin injection port of sprue part 53 to the joint between runner part 52 is "sprue length"
- the diameter of the part that becomes the resin injection port is called “inlet diameter”
- the diameter of the part that becomes the joint with runner 52 is called “outlet diameter” .
- the ratio of the minimum gate thickness to the maximum runner thickness is set within a range that satisfies the following condition (1).
- this ratio is 0.2 or less, the flow of the resin is drastically reduced at the gate part 51, which is sufficient. Fillability deteriorates. As a result, transferability deteriorates. In addition, since the stress is concentrated near the gate 51, birefringence becomes significant. If this ratio is 1.0 or more, the gate part 51 does not play a role as a gate, and it becomes difficult to control the transferability of the product transfer part 50 alone.
- the ratio of the gate length to the maximum runner thickness is set within the range satisfying the following condition (2).
- this ratio is less than 0.4, the secondary process will be affected. In other words, the gate length becomes too short, making it difficult to separate the gate 51 and the molded product. Or, because the runner thickness becomes too large, the manufacturing cycle becomes longer. If it is above this specific force, the gate length becomes longer and mold release deformation occurs.
- the size of the outlet diameter of the sprue part 53 is set within the range satisfying the following condition (3).
- the outlet diameter of the sprue part 53 is 1. Omm or less, the temperature of the resin decreases rapidly, and the product transfer section 50 is not sufficiently filled with resin. On the other hand, if the outlet diameter is 5.5 mm or more, the cooling and solidification time of the sprue part 53 becomes longer and the production cycle becomes longer.
- the length of the sprue is set within the range satisfying the following condition (4).
- the length of the sprue is 10 mm or less, it is necessary to dig into the base mold 13 of the fixed mold 1 for inserting the nozzle of the injection part 80, and the rigidity of the mold is reduced. Therefore, the mold is distorted by clamping and nozzle touch.
- the length of the sprue is 40 mm or more, the temperature of the resin until the runner part 52 is greatly decreased, and the product transfer part 50 is not sufficiently filled with the resin. In addition, the resistance at the time of mold opening is large, causing the remaining fixed.
- the ratio of the outlet diameter of the sprue part 53 to the inlet diameter of the sprue part 53 is set within a range that satisfies the following condition (5).
- this ratio is 1 or less, the shape of the sprue part 53 becomes a reverse taper, and a fixed remainder always occurs.
- this ratio is 8 or more, the injection pressure and speed of the resin become unstable due to the rapid expansion of the flow path after the molten resin reaches the sprue part 53. As a result, molding stability decreases. Furthermore, the thread draw 54 (see Fig. 9) becomes larger.
- the shapes of the gate part 51, the runner part 52, and the sprue part 53 are defined.
- the minimum gate thickness Z maximum runner thickness within the range of 0.2 to 1.0 (condition (1))
- stress concentration near the gate portion 51 is avoided, birefringence near the gate portion 51 is relaxed.
- the gate length Z maximum runner thickness within the range of 0.4 to 4.0 (condition (2))
- the manufacturing cycle can be shortened while avoiding mold release deformation. Therefore, when the dimensions of the gate part 51 and the dimension of the runner part 52 satisfy the conditions (1) and (2), it is possible to ensure good transferability in a small and high-precision optical component manufacturing apparatus. The stability of the molded product can be ensured.
- the injection unit is not limited to the pre-bra method or the inline screw method, but may be an inline plunger method, for example.
- the plastic lens mold is divided into a core and a cavity, but the present invention is not limited to this.
- the core and the cavity may be integrated (integrated with the transfer portion of the lens portion and the transfer portion of the flange portion).
- the cross section of the gate portion 51 is rectangular, but it may be circular.
- the cross section of the runner 52 is circular, it may be rectangular.
- the mixing method is not particularly limited in the case where fine particles are mixed in a plastic resin as a base material.
- plastic resin and fine particles are prepared independently and then mixed together, a method of creating plastic resin under the condition that pre-made fine particles exist, pre-made plastic resin exists.
- Any method can be used, such as a method of creating fine particles under the conditions, or a method of producing both plastic resin and fine particles simultaneously.
- two solutions of a solution in which plastic resin is dissolved and a dispersion in which fine particles are uniformly dispersed are uniformly mixed, and the resulting solution is mixed in a solution that is poorly soluble in plastic resin.
- a method for obtaining a target material composition can be preferably mentioned, but the method is not limited to this.
- the degree of mixing of the plastic resin and the fine particles is not particularly limited, but it is desirable that they are mixed uniformly. If the degree of mixing is inadequate, there are concerns about optical properties such as refractive index, Abbe number, and light transmittance, and resin processability such as thermoplasticity and melt moldability is also affected. There are concerns about the effects.
- the degree of mixing may be affected by the method of preparation, and it is important to select a method that takes into account the characteristics of plastic resin and fine particles. In order to mix both plastic resin and fine particles uniformly, a method of directly bonding plastic resin and fine particles can be suitably used.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006542995A JP4730307B2 (ja) | 2004-10-29 | 2005-10-18 | プラスチックレンズの製造装置 |
KR1020077011671A KR101243401B1 (ko) | 2004-10-29 | 2005-10-18 | 광학 부품의 제조 장치 및 제조 방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-316771 | 2004-10-29 | ||
JP2004316771 | 2004-10-29 |
Publications (1)
Publication Number | Publication Date |
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WO2006046437A1 true WO2006046437A1 (ja) | 2006-05-04 |
Family
ID=36227679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/019099 WO2006046437A1 (ja) | 2004-10-29 | 2005-10-18 | 光学部品の製造装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7914273B2 (ja) |
JP (1) | JP4730307B2 (ja) |
KR (1) | KR101243401B1 (ja) |
CN (1) | CN100439074C (ja) |
TW (1) | TWI275482B (ja) |
WO (1) | WO2006046437A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012105693A1 (ja) * | 2011-02-04 | 2012-08-09 | コニカミノルタオプト株式会社 | 対物レンズ及び対物レンズの製造方法並びに成形金型 |
WO2012105692A1 (ja) * | 2011-02-04 | 2012-08-09 | コニカミノルタオプト株式会社 | 対物レンズ及び対物レンズの製造方法並びに成形金型 |
WO2015022973A1 (ja) * | 2013-08-13 | 2015-02-19 | 富士フイルム株式会社 | 硬化性樹脂組成物、光学部品、レンズおよび光学部品の製造方法 |
US9610721B2 (en) | 2012-11-21 | 2017-04-04 | Imflux Inc | Reduced size runner for an injection mold system |
WO2023210613A1 (ja) * | 2022-04-29 | 2023-11-02 | キャニヨン株式会社 | トリガースプリング構造体及びトリガースプレイヤ |
Families Citing this family (12)
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Also Published As
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KR20070084491A (ko) | 2007-08-24 |
US7914273B2 (en) | 2011-03-29 |
TW200624245A (en) | 2006-07-16 |
CN1765608A (zh) | 2006-05-03 |
JP4730307B2 (ja) | 2011-07-20 |
TWI275482B (en) | 2007-03-11 |
US20060093700A1 (en) | 2006-05-04 |
KR101243401B1 (ko) | 2013-03-13 |
CN100439074C (zh) | 2008-12-03 |
JPWO2006046437A1 (ja) | 2008-05-22 |
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