CN101932423A - Method for manufacturing optical element, and optical element - Google Patents
Method for manufacturing optical element, and optical element Download PDFInfo
- Publication number
- CN101932423A CN101932423A CN2009801034430A CN200980103443A CN101932423A CN 101932423 A CN101932423 A CN 101932423A CN 2009801034430 A CN2009801034430 A CN 2009801034430A CN 200980103443 A CN200980103443 A CN 200980103443A CN 101932423 A CN101932423 A CN 101932423A
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- China
- Prior art keywords
- cutting
- exhaust outlet
- cast gate
- optical element
- shaping thing
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- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/02—Deburring or deflashing
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- 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
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
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- 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
- B29C45/34—Moulds having venting means
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- 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
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
- B29C2045/0058—Shaping removing material
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- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
An air ventilation bur is eliminated and a gate-side position during molding can be discriminated. A molded article (70) is provided by integrating an objective lens (7) molded by a cavity (104), a molded gate section (71) molded by a gate (103), and an air ventilation bur (72) molded by an air ventilation (105). The objective lens (7) is manufactured by a molding step and a cutting step. In the molding step, the molded article (70) is formed of a resin material by using the cavity (104), the gate (103) and a molding die (100) having the air ventilation (105). In the cutting step, a gate molding section (71) and an air ventilation bur (72) are removed from the molded article (70), and base sections (710, 720) of the molded gate section (71) and the air ventilation bur (72) are cut to shapes different from each other.
Description
Technical field
The present invention relates to the manufacture method and the optical element of optical element.
Background technology
In the past, carrying out the object lens in the optical take-up apparatus of information recording/reproducing with information recording carriers such as CD, DVD, is the mould 100 with as shown in Figure 8, and shaping resin material is made.
Mould 100 has cover half 101 and the dynamic model 102 that can engage, separate at directions X and cover half 101.By cover half 101 and dynamic model 102 engaged, to form molding resin material be the chamber 104 of lens shape and make the cast gate 103 in the resin material inflow chamber 104 and make air is discharged in the chamber 104 exhaust outlet 105 etc. in order to make resin material riddle chamber 104 in 104 inboards, chamber outside chamber 104.
Shaping thing with mould 100 moulding, because it is slightly different with exhaust outlet optical property on one side on one side at cast gate, so, when the assembling of optic pick-up, cast gate position on one side can be discerned, in addition, the cured portion of the resin material in cast gate, be the cast gate forming part, be a barrier.Therefore, the shaping thing after the moulding is to make original cast gate position on one side can cut the cast gate forming part with differentiating, then as object lens dispatch from the factory (for example please refer to patent documentation 1).
But in recent years, along with more exploitations of densification information recording carrier such as BD (Blu-lay Disk), HD DVD, it is big that the numerical aperture NA of optical take-up apparatus object lens becomes.The object lens that numerical aperture NA is big are compared with object lens in the past, and therefore thickness direction shape thickening, must more properly make resin material be full of in the chamber during moulding.
Patent documentation 1: the spy opens the 2003-114307 communique
Summary of the invention
The problem that the invention desire solves
But, resin material definitely is full of in the thick chamber of thickness direction shape, except above-mentioned cast gate forming part, the resin material cured portion in the exhaust outlet, to be that the exhaust outlet burr also become big on the thing that then is shaped.Because exhaust outlet burr and object lens form one and bigger, so, the exhaust outlet burr are run into the lens box that conveyance is used, hinder the taking-up of packing into of object lens, during conveyance from the object lens damage lens face of can damaging that partly fractures, also produce dust and be attached on the lens face, when the assembling of optical take-up apparatus, become obstacle.
But if cut the exhaust outlet burr from the shaping thing merely in the same manner with the cast gate forming part, the part of then being hard to tell Chu's cutting is cast gate forming part or exhaust outlet burr, so can not correctly set object lens in optical take-up apparatus.
Problem of the present invention is to provide a kind of manufacture method and optical element of optical element, wherein, can realize removing the exhaust outlet burr, the position on one side of the cast gate in the time of can discerning moulding simultaneously.
With the means that solve problem
The invention of claim 1 record is the manufacture method of optical element, it is characterized in that, makes optical element by following operation:
Molding procedure, with the mould that has chamber, cast gate, exhaust outlet, from the shaping thing of molding resin material integraty, be included in the optical element of described chamber moulding on it, in the cast gate forming part of described cast gate moulding, at the exhaust outlet burr of described exhaust outlet moulding;
Cutting action is removed described cast gate forming part and described exhaust outlet burr from described shaping thing, and each base portions of described cast gate forming part and described exhaust outlet burr is cut into mutually different shape.
The invention of claim 2 record, it is the manufacture method of the optical element of record in the claim 1, it is characterized in that, in described cutting action, the base portion of the described cast gate forming part of cutting on the whole amplitude of described shaping thing thickness direction, and, the base portion of the described exhaust outlet burr of cutting on the only part of described shaping thing thickness direction.
The invention of claim 3 record, it is the manufacture method of the optical element of record in the claim 1, it is characterized in that, in described cutting action, the base portion of the described cast gate forming part of cutting on the only part of described shaping thing thickness direction, and, the base portion of the described exhaust outlet burr of cutting on the whole amplitude of described shaping thing thickness direction.
The invention of claim 4 record, it is the manufacture method of the optical element of record in the claim 1, it is characterized in that, in described cutting action, base portion with described cast gate forming part on the whole amplitude of described shaping thing thickness direction cuts into D cutting profile or U cutting profile, and the base portion with described exhaust outlet burr on the whole amplitude of described shaping thing thickness direction cuts into the circular arc cutting profile.
The invention of claim 5 record, it is the manufacture method of the optical element of record in the claim 1, it is characterized in that, in described cutting action, base portion with described cast gate forming part on the only part of described shaping thing thickness direction cuts into D cutting profile or U cutting profile, and the base portion with described exhaust outlet burr on the only part of described shaping thing thickness direction cuts into the circular arc cutting profile.
The invention of claim 6 record is an optical element, it is characterized in that, by the manufacture method manufacturing of the optical element put down in writing in any one of claim 1 to 5.
The invention of claim 7 record is the optical element that optical take-up apparatus is used, and it is characterized in that the shape of cast gate cutting part and exhaust outlet cutting part is different.
The effect of invention
According to the present invention, the base portion of cutting exhaust outlet burr, removing on the shaping thing that obtains by molding procedure exhaust outlet burr from the shaping thing by the exhaust outlet moulding, so, can remove the exhaust outlet burr from optical element.
In addition, each base portions of cast gate forming part on the shaping thing and exhaust outlet burr is cut into mutually different shape, so the cast gate in the time of also can discerning moulding after can realizing cutting is the position on one side.Can correctly set optical element when therefore, making Optical devices.
Description of drawings
Fig. 1: the schematic configuration conceptual schematic view of present embodiment optical take-up apparatus.
Fig. 2: the be shaped schematic perspective view of thing of the present invention.
Fig. 3: the key diagram of relevant exhaust outlet cutting action.
Fig. 4: the key diagram of relevant cast gate forming part cutting action.
Fig. 5: the object lens schematic perspective view of making.
Fig. 6: the generalized section of exhaust outlet cutting part.
Fig. 7: the cut state schematic diagram of cast gate forming part and exhaust outlet burr.
Fig. 8: the schematic diagram of mould.
Symbol description
7 object lens (optical element)
70 shaping things
71 cast gate forming parts
72 exhaust outlet burr
100 moulds
103 cast gates
104 chambeies
105 exhaust outlets
The base portion of 710 cast gate forming parts
The base portion of 720 exhaust outlet burr
The specific embodiment
With reference to the accompanying drawings, embodiments of the present invention are explained.In the following embodiment, technically in order to implement the present invention done various preferred qualifications, still, the present invention is not limited to following embodiment.
Fig. 1 is the schematic configuration conceptual schematic view that optical element of the present invention is used as the optical take-up apparatus 1 of object lens.
As shown in Figure 1, have semiconductor laser oscillator 2 in the optical take-up apparatus 1.It is the so-called bluish violet color laser light source of 405nm that semiconductor laser oscillator 2 is to use wavelength.On the optical axis of the laser that penetrates from semiconductor laser oscillator 2,, setting collimater 3, optical splitter 4, quarter wave plate 5, aperture 6, object lens 7 successively on the direction of leaving semiconductor laser oscillator 2 (among the figure from bottom to top direction).
In addition, the next door (the right among the figure) at optical splitter 4 is setting sensing set of lenses 8, the sensing 9 be made up of 2 lens successively.
Subsequent action to optical take-up apparatus 1 explains.
During the regeneration action of the information that the optical take-up apparatus 1 in the present embodiment is writing down on to the information operation of recording of CD D the time and to CD D, penetrate laser from semiconductor laser oscillator 2.The laser that penetrates is illustrated in figure 1 as light L
1, after seeing through that collimater 3 is collimated and be unlimited directional light, see through optical splitter 4, through quarter wave plate 5.Further see through after aperture 6 and the object lens 7 the protective substrate D of the CD D of intermediary successively
1At information recording surface D
2Last formation optically focused spot.
Form the information recording surface D of the light of optically focused spot at CD D
2Go up by the information track modulation, by information recording surface D
2Reflection.This reverberation is light L
2, see through successively after object lens 7 and the aperture 6, change polarization direction by quarter wave plate 5, be reflected at optical splitter 4.See through sensing set of lenses 8 then and be given astigmatism, be subjected to light, finally, become the signal of telecommunication through sensing 9 light-to-current inversions by sensing 9.
Carry out above-mentioned action afterwards repeatedly, finish to the information operation of recording of CD D with to the regeneration action of the information that writing down on the CD D.
Subsequent 7 manufacture method to object lens explains.
At first as shown in Figure 8, adopt mould 100, comprise the shaping thing 70 (molding procedure) of object lens 7 from the molding resin material integraty.On the mould 100, during the big object lens 7 of moulding numerical aperture NA, bigger aftermentioned exhaust outlet burr 72a (with reference to Fig. 2) have been formed.
In this molding procedure, specifically be that dynamic model 102 is come under the state of cover half 101, make molten resin material in cast gate 103 inflow chambers 104.Like this, the air in the chamber 104 is discharged to outside the chamber 104 by exhaust outlet 105, solidifies under the state of resin material in being full of chamber 104.So as shown in Figure 2, form one as shaping thing 70 by the object lens 7 of chamber 104 moulding with by the cast gate forming part 71 of cast gate 103 moulding and by the exhaust outlet burr 72 of exhaust outlet 105 moulding.And diagram not among Fig. 2 is provided with bar-shaped resin part at the sprue and runner (not diagram) inside solidification of mould 100 (below as bar-like portion) continuously on cast gate forming part 71.
Subsequent, dynamic model 102 is thrown off after the cover half 101, support bar-like portion, take out shaping thing 70 from mould 100, use metal rotating saw etc., cut off bar-like portion from cast gate forming part 71.
Subsequent, remove cast gate forming part 71 and exhaust outlet burr 72 from shaping thing 70, make the base portion 710 of cast gate forming part 71 and the base portion 720 of exhaust outlet burr 72 be mutually different shape, form the cutting part (following) of cast gate forming part 71 and the cutting part (following) (cutting action) of exhaust outlet burr 72 as exhaust outlet cutting part 72a as cast gate cutting part 71a.
Specifically then shown in Fig. 3 (a), Fig. 4 (a), adopt slotting cutter E, base portion 720 with exhaust outlet burr 72, on the only part of shaping thing 70 thickness directions (object lens 7 optical axis directions), be cut into circular-arc, promptly along the periphery of lens, be cut into circular-arc in fact, with the base portion 710 of cast gate forming part 70, on the whole amplitude of shaping thing 70 thickness directions, be cut into the circular arc cutting profile.And, when cutting the base portion 710 of cast gate forming part 71, adjust cutting position, make the center of the cast gate forming part 71 on shaping thing 70 circumferencial directions become the center of cast gate cutting part 71a.Among Fig. 3, Fig. 4 and aftermentioned Fig. 5, the optical surface that makes object lens 7 is for flatly having done simplification.
In the present embodiment, exhaust outlet burr 72 make slotting cutter E favour the 70 thickness direction ground backups of shaping thing partially by an optical surface (with reference to Fig. 3 (a)) of object lens 7, carry out the cutting of exhaust outlet burr 72 thus.The moving method of slotting cutter E when relevant cast gate forming part 71 is cut, for example can taking, the spy opens disclosed method in the 2005-161564 communique.Device as above-mentioned cutting exhaust outlet burr 72 and cast gate forming part 71, except above-mentioned slotting cutter E, the known in the past devices such as movable table that can adopt the chuck means of controlling shaping thing 70, slotting cutter E and described chuck means be moved automatically by Numerical Control.
By above-mentioned operation, the final object lens of making as shown in Figure 57 of having removed cast gate forming part 71 and exhaust outlet burr 72.
According to the manufacture method of above-mentioned object lens 7, because the base portion 720 of cutting exhaust outlet burr 72, remove on the shaping thing 70 that obtains by moulding exhaust outlet burr 72 from shaping thing 70, so can remove exhaust outlet burr 72 from object lens 7 by exhaust outlet 105 moulding.
In addition, because the base portion 710,720 of cast gate forming part 71 on the shaping thing 70 and exhaust outlet burr 72 is cut into mutually different shape, promptly, forming cast gate cutting part 71a (object lens 7 (optical element) get on except the part of cast gate forming part 71) is different shapes with exhaust outlet cutting part 72a (object lens 7 (optical element) get on except the part of exhaust outlet burr 72), so, after cutting action, the cast gate 103 in the time of also can discerning moulding is the position on one side.Therefore, to two-dimentional transmission device 10 fixedly during object lens 7, the correct position of original cast gate forming part 71 benchmark as the location can be that is to say, can correctly set object lens 7.
In addition, because when the base portion 710 of cutting cast gate forming part 71, make the center of the cast gate forming part 71 on shaping thing 70 circumferencial directions become the center of cast gate cutting part 71a, so, the position of original cast gate forming part 71 can more correctly be discerned after the cutting.Therefore, can more correctly set object lens 7.
In addition, because be the exhaust outlet burr 72 that 7 one optical surfaces of object lens are leaned in cutting partially on the only part of thickness direction, so, as shown in Figure 6, (with reference to Fig. 6 (b)) is different with the situation of cutting on the whole amplitude of thickness direction, can make object lens 7 lateral circle surfaces that are positioned at exhaust outlet cutting part 72a top or bottom be cutting state (with reference to Fig. 6 (a)) not.Therefore, when object lens 7 are miniaturized and reduce with the contact area of two-dimentional transmission device 10, also prevent the further minimizing of the contact area that the cutting owing to exhaust outlet burr 72 causes, can two-dimentional relatively transmission device 20 fixing object lens 7 unchangeably.In addition, optical element of the present invention is that NA is more than 0.75 during the object lens below 0.9, because be easier to occur the exhaust outlet burr, so more remarkable effect of the present invention.
In addition, when optical element of the present invention meets the following conditions formula, because be easier to occur the exhaust outlet burr, so more remarkable effect of the present invention.
1.1＜d/f＜2.0
Wherein, d represents the thickness (mm) on the optical element optical axis, and f represents to adopt the focal length (mm) of optical take-up apparatus when using wavelength of optical element.The preferred wavelength that uses is below the above 420nm of 390nm.
The present invention is not construed as limited to above-mentioned embodiment, can suitably change and improve.
For example, situation about illustrating in the above-mentioned embodiment, be on the whole amplitude of shaping thing 70 thickness directions, cast gate forming part 70 to be cut into the circular arc cutting profile, and only on a part, exhaust outlet burr 72 are cut into the circular arc cutting profile, but, so long as the base portion 710,720 of cast gate forming part 71 and exhaust outlet burr 72 is cut into mutually different shape, also can be cut into various other shapes as shown in Figure 7.At this moment, the base portion 710,720 of cast gate forming part 71 and exhaust outlet burr 72 also is to be cut into mutually different shape, so cast gate 103 position on one side in the time of also can discerning moulding after the cutting when making optical take-up apparatus 1, can correctly set object lens 7.
" whole amplitude " among Fig. 7 is the meaning of cutting on the whole amplitude of shaping thing 70 thickness directions, and " part " is the meaning of cutting on the only part of shaping thing 70 thickness directions.But, object lens 7 after make are fixed to the viewpoint of two-dimentional transmission device 10 easily, preferably the lateral circle surface at shaping thing 70 stays bigger not cutting zone, so, when carrying out " part " cutting, preference is as carrying out in following width: from an optical surface of object lens 7, to also will be to the width of the position of another optical surface 0.05～0.1mm than pairing position, the line of demarcation of mould 100.
In addition, " D cutting " among Fig. 7 is the meaning that the base portion 710 (or base portion 720) of cast gate forming part 71 (or exhaust outlet burr 72) is cut into the D cutting profile, specifically then mean it is shown in Fig. 4 (b), (c), remove base portion 710 (or base portion 720) linearity, as a whole, shaping thing 70 is formed the front and see the slightly cutting method of D font.On the only part of shaping thing 70 thickness directions, carry out D when cutting, can make slotting cutter E be parallel to optical surface tangential direction touch shaping thing 70 and cut, also can make and touch shaping thing 70 with being parallel to shaping thing 70 thickness directions and cut.
In addition, " U cutting " among Fig. 7 is the meaning that the base portion 710 (or base portion 720) of cast gate forming part 71 (or exhaust outlet burr 72) is cut into the U cutting profile, specifically then mean it is shown in Fig. 4 (d), circular arc cutting base portion 710 (or base portion 720) is cut into the front with the center of the cast gate cutting part 71a on shaping thing 70 circumferencial directions (or exhaust outlet cutting part 72a) and sees the slightly cutting method of U font afterwards.According to the cutting of this U cutting profile, can more correctly discern the position of original cast gate forming part 71, can further correctly set object lens 7.
In addition, illustrate in the above-mentioned embodiment, when on the only part of shaping thing 70 thickness directions, carrying out the circular arc cutting, be to make the cutting face of slotting cutter E and shaping thing 70 thickness directions bump (with reference to Fig. 3 (a)) that taps into the row cutting obliquely, but also can be shown in Fig. 3 (b), (c), parallel bumping taps into the row cutting.Position relation when expression slotting cutter E be the general up and down slotting cutter E when thick with the cutting of shaping thing 70 among Fig. 3 (b), the position when Fig. 3 (b) represents that slotting cutter E tip is thick concerns.
Claims (7)
1. the manufacture method of an optical element is characterized in that, makes optical element by following operation:
Molding procedure, with the mould that has chamber and cast gate and exhaust outlet, from the shaping thing of molding resin material integraty, this shaping thing is included in the optical element of described chamber moulding, in the cast gate forming part of described cast gate moulding, at the exhaust outlet burr of described exhaust outlet moulding;
Cutting action is removed described cast gate forming part and described exhaust outlet burr from described shaping thing, and each base portions of described cast gate forming part and described exhaust outlet burr is cut into mutually different shape.
2. as the manufacture method of optical element of record in the claim 1, it is characterized in that, in described cutting action, the base portion of the described cast gate forming part of cutting on the whole amplitude of described shaping thing thickness direction, and, the base portion of the described exhaust outlet burr of cutting on the only part of described shaping thing thickness direction.
3. as the manufacture method of optical element of record in the claim 1, it is characterized in that, in described cutting action, the base portion of the described cast gate forming part of cutting on the only part of described shaping thing thickness direction, and, the base portion of the described exhaust outlet burr of cutting on the whole amplitude of described shaping thing thickness direction.
4. as the manufacture method of optical element of record in the claim 1, it is characterized in that, in described cutting action, base portion with described cast gate forming part on the whole amplitude of described shaping thing thickness direction is cut into D cutting profile or U cutting profile, and the base portion with described exhaust outlet burr on the whole amplitude of described shaping thing thickness direction is cut into the circular arc cutting profile.
5. as the manufacture method of optical element of record in the claim 1, it is characterized in that, in described cutting action, base portion with described cast gate forming part on the only part of described shaping thing thickness direction is cut into D cutting profile or U cutting profile, and the base portion with described exhaust outlet burr on the only part of described shaping thing thickness direction is cut into the circular arc cutting profile.
6. an optical element is characterized in that, by the manufacture method manufacturing of the optical element put down in writing in any one of claim 1 to 5.
7. the optical element that optical take-up apparatus is used is characterized in that, the shape of cast gate cutting part and exhaust outlet cutting part is different.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP021358/08 | 2008-01-31 | ||
| JP2008021358 | 2008-01-31 | ||
| PCT/JP2009/050444 WO2009096230A1 (en) | 2008-01-31 | 2009-01-15 | Method for manufacturing optical element, and optical element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101932423A true CN101932423A (en) | 2010-12-29 |
Family
ID=40912583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801034430A Pending CN101932423A (en) | 2008-01-31 | 2009-01-15 | Method for manufacturing optical element, and optical element |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2009096230A1 (en) |
| CN (1) | CN101932423A (en) |
| WO (1) | WO2009096230A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI476092B (en) * | 2012-07-05 | 2015-03-11 | Largan Precision Co Ltd | Plastic optical lens and an injection-molding method for manufacturing the same |
| CN114786905A (en) * | 2019-11-18 | 2022-07-22 | 株式会社电装 | Molded article and method for producing same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010076196A (en) * | 2008-09-25 | 2010-04-08 | Konica Minolta Opto Inc | Method for removing convex part and lens |
| JP5263208B2 (en) * | 2010-03-26 | 2013-08-14 | コニカミノルタアドバンストレイヤー株式会社 | Optical element manufacturing method, optical element, and optical pickup device |
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| JP4025387B2 (en) * | 1997-03-31 | 2007-12-19 | フジノン株式会社 | Plastic lens |
| JP2003211500A (en) * | 2002-01-23 | 2003-07-29 | Matsushita Electric Ind Co Ltd | Mold for molding plastic lens and method for molding the same |
| JP2005084080A (en) * | 2003-09-04 | 2005-03-31 | Matsushita Electric Ind Co Ltd | Method for manufacturing plastic lens |
| JP4430475B2 (en) * | 2004-07-23 | 2010-03-10 | 日立マクセル株式会社 | Manufacturing method of plastic lens |
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2009
- 2009-01-15 WO PCT/JP2009/050444 patent/WO2009096230A1/en active Application Filing
- 2009-01-15 JP JP2009551460A patent/JPWO2009096230A1/en active Pending
- 2009-01-15 CN CN2009801034430A patent/CN101932423A/en active Pending
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| JP2004098538A (en) * | 2002-09-11 | 2004-04-02 | Konica Minolta Holdings Inc | Method for manufacturing optical element made of plastic, mold for molding, and optical element |
| CN101031401A (en) * | 2004-06-08 | 2007-09-05 | Hoya株式会社 | Processes for production of plastic lenses, gasket for molding plastic lenses, molds for molding plastic lenses, injection jig for the raw material fluid of plastic lenses, holding fixture for the mol |
| CN1796317A (en) * | 2004-12-21 | 2006-07-05 | 亚洲光学股份有限公司 | Jetting out forming die of making rough convex not influence on assembly of finished product |
| CN1971313A (en) * | 2005-11-24 | 2007-05-30 | 亚洲光学股份有限公司 | Optical element |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI476092B (en) * | 2012-07-05 | 2015-03-11 | Largan Precision Co Ltd | Plastic optical lens and an injection-molding method for manufacturing the same |
| CN114786905A (en) * | 2019-11-18 | 2022-07-22 | 株式会社电装 | Molded article and method for producing same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2009096230A1 (en) | 2011-05-26 |
| WO2009096230A1 (en) | 2009-08-06 |
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Application publication date: 20101229 |