WO2006059659A1 - 複合型光学素子の製造方法 - Google Patents
複合型光学素子の製造方法 Download PDFInfo
- Publication number
- WO2006059659A1 WO2006059659A1 PCT/JP2005/022020 JP2005022020W WO2006059659A1 WO 2006059659 A1 WO2006059659 A1 WO 2006059659A1 JP 2005022020 W JP2005022020 W JP 2005022020W WO 2006059659 A1 WO2006059659 A1 WO 2006059659A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- energy
- curable resin
- substrate
- resin
- energy curable
- Prior art date
Links
Classifications
-
- 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
- B29D11/00269—Fresnel lenses
-
- 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
- B29D11/00278—Lenticular sheets
-
- 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
- B29D11/00365—Production of microlenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0012—Arrays characterised by the manufacturing method
- G02B3/0031—Replication or moulding, e.g. hot embossing, UV-casting, injection moulding
Definitions
- the present invention relates to a method for producing a composite optical element by molding an energy curable resin on a substrate.
- the present invention relates to a method for manufacturing a high-precision composite optical element that does not require post-processing to remove the protrusion of the resin after molding and control of the mold temperature!
- the method for producing a composite optical element according to the present invention is used for producing a microlens array, a diffraction lens, a Fresnel lens, a sub-wavelength grating, and the like.
- optical element manufacturing methods include glass material grinding and polishing, or molding using a mold, or thermoplastic resin material injection molding or press molding. Glass materials have less performance fluctuations due to environmental changes such as temperature compared to rosin materials. On the other hand, molding with rosin is excellent in shape accuracy. According to the characteristics of such materials and manufacturing methods, the materials and manufacturing methods are used and separated.
- FIG. 9 is a flowchart of a conventional method for producing a composite optical element by molding an energy curable resin on a glass substrate.
- 10 to 12 are diagrams for explaining the method in relation to the apparatus. The procedure for manufacturing a composite optical element by molding an energy curable resin on a glass substrate according to the prior art will be described below with reference to FIG.
- step S0910 the glass substrate 2 is placed on the support member 14 as shown in FIG.
- step S0920 as shown in FIG.
- Supply rosin 1 The viscosity of the energy curable resin 1 is 0.1 to 300 Pascal 'seconds.
- step S0930 as shown in FIG. 11, the energy hardening type resin 1 is formed by the mold core 5.
- step S0940 during the molding, energy is supplied to the energy curable resin 1 from the glass substrate side to cure the energy curable resin 1.
- step S 0950 as shown in FIG. 12, the glass substrate 2 and the energy curable resin 1 molded thereon are taken out from the mold core 5.
- the energy curable resin 1 Bubbles may enter 1 Further, air may remain between the mold core 5 and the energy curable resin 1 in the step of molding the energy curable resin 1 with the mold core 5 (S0930).
- a method of evacuating the space between the glass substrate and the mold member has been proposed. The above method is described, for example, in JP-A-9 24522.
- the energy hardened resin 1 Shrinks while curing.
- the energy hard type resin 1 protrudes from the mold core 5. Therefore, a post-processing step is required to process the protrusion.
- the post-processing step includes cutting, polishing, burr finishing, and the like for finishing the outer shape after molding.
- FIG. 1 is a flowchart of a method for producing a composite optical element by molding an energy curable resin on a substrate according to an embodiment of the present invention.
- FIG. 2 is a view showing a mold used in a method for producing a composite optical element by molding an energy curable resin on a glass substrate according to an embodiment of the present invention.
- FIG. 3 is a view showing a mold used in a method for producing a composite optical element by molding an energy curable resin on a glass substrate according to an embodiment of the present invention.
- FIG. 4 is a view showing a microlens array manufactured by the method of the present invention.
- FIG. 5 is a diagram showing the shape of an energy-curable resin during rotation of a spin coater when no energy is applied during rotation of the spin coater.
- FIG. 6 is a diagram showing the shape of an energy-curing resin after the spin coater has stopped rotating when no energy is applied while the spin coater is rotating.
- FIG. 7 is a diagram showing the shape of an energy curable resin during rotation of a spin coater when energy is applied during rotation of the spin coater.
- FIG. 8 is a diagram showing the shape of an energy-curing resin after rotation of the spin coater is stopped when energy is applied during the rotation of the spin coater.
- FIG. 9 is a flowchart of a conventional method for producing a composite optical element by molding an energy curable resin on a glass substrate.
- FIG. 10 is a diagram for explaining a method of manufacturing a composite optical element by molding an energy curable resin on a glass substrate according to a conventional technique.
- FIG. 11 Composite light by molding energy curable resin on a glass substrate according to conventional technology It is a figure for demonstrating the method of manufacturing a scientific element in relation to an apparatus.
- FIG. 12 is a diagram for explaining a method of manufacturing a composite optical element by molding an energy curable resin on a glass substrate according to a conventional technique.
- the method for producing a composite optical element according to the present invention comprises the steps of applying an energy curable resin on a substrate and applying energy, and then applying an energy curable resin on the substrate by a mold. Forming a fat.
- the energy curable resin is molded in a state where energy is applied and cured to some extent, bubbles are hardly generated between the mold and the energy curable resin. For this reason, vacuum drawing is unnecessary. Further, since the energy curable resin is molded in a state where it is cured to some extent, heat generation due to polymerization or a crosslinking reaction can be suppressed in the mold when the energy curable resin is cured. For this reason, temperature control of the mold core is not necessary. However, it is necessary to control the room temperature. In addition, since post-processing after molding is not required, the outer shape tolerance can be reduced to ⁇ 0.01 mm or less.
- the mold shape can be transferred as it is because it can be molded at room temperature. Therefore, it is not necessary to correct the mold for thermal expansion during molding.
- the viscosity of the energy curable resin immediately after applying energy is Energize to have a viscosity range of 10 3 to 10 11 Pascal 'seconds.
- the lower limit is 10 3 noscal ⁇ sec or more, bubbles are not generated, and it is not necessary to apply energy to the energy-curable resin in the mold and cure it.
- the upper limit value is a value that does not impair the moldability!
- the moldability is not impaired in the subsequent molding step, without taking too much time for curing. That is, it can be molded by the same press mechanism as in the case of filling a mold with a hard resin that has been cured and cured in a later molding step.
- the substrate in the step of applying energy curable resin on the substrate and applying energy, the substrate is attached to the spin coater and the spin coater is rotated to apply the applied energy. Gives energy while making curable resin uniform.
- the resin is not filled with a small amount of the resin in the molding process, or the resin is not filled with a large amount of the resin. Excessive protrusion can be prevented.
- the energy-curing type resin is cured to some extent, so that the thickness is kept uniform even at the end portion where the resin at the end portion does not return to the rotating shaft side.
- the spin coater when the spin coater is rotated to apply energy while uniformizing the energy-curable resin applied on the substrate, the energy is applied for the first predetermined time. Give energy for a second predetermined time after that.
- the thickness of the energy curable resin becomes uniform in the first predetermined time, and the energy curable resin is cured to some extent in the second predetermined time.
- the mask in the step of applying energy curable resin on the substrate and applying energy, the mask is provided on the side wall of the substrate, and the mask is removed after the end of the step. remove.
- the structure of the mold is an internal cavity compression structure and the escape of the resin.
- the structure is as follows.
- the substrate is a glass substrate.
- the energy curable resin is a type of resin that undergoes a curing reaction once energy is applied.
- the energy is ultraviolet light.
- FIG. 1 is a flowchart of a method for producing a composite optical element by molding an energy curable resin on a substrate according to an embodiment of the present invention.
- 2 and 3 are diagrams for explaining the method in relation to the mold apparatus.
- the substrate may be ceramic or metal, but is glass in the following embodiments.
- a procedure of a method for producing a composite optical element by molding an energy curable resin on a glass substrate according to an embodiment of the present invention will be described below.
- step S0110 the substrate is attached to the spin coater.
- step S0120 the energy curable resin is supplied onto the substrate, and the spin coater is rotated.
- the rotation speed of the spin coater is, for example, 2000 rpm.
- the time for rotating the spin coater is the time required to make the thickness of the energy-curable resin uniform. Specifically, the spin coater is rotated for 60 seconds.
- the thickness of the energy curable resin is about 25 micrometers.
- step S0130 while continuously rotating the spin coater, using an ultraviolet irradiation device, the energy curable resin is irradiated with ultraviolet light to harden the resin to some extent.
- the degree of curing is preferably such that it can be molded at a low pressure.
- a degree of curing that can maintain the shape is necessary.
- the ultraviolet ray irradiation is performed so that the viscosity of the energy curable resin immediately after the ultraviolet ray irradiation is within a viscosity range of 10 3 to 10 11 Pascal 'seconds at 25 degrees Celsius. If the viscosity is too low, bubbles will be generated.
- the viscosity range is more preferably in the range of 10 3 to 10 5 Pascal seconds.
- the irradiation intensity is, for example, 40 mWZcm 2 and irradiation is performed for 5 seconds. During this time, the rotational speed remains 2000 rpm.
- the curing speed can be controlled by controlling the amount of energy applied in step S0130. While maintaining the softness of the energy curable resin until molding, heat generation due to polymerization and crosslinking reaction can be suppressed during the curing of the energy curable resin in the mold, and the mold temperature rises due to the heat generation. The resulting shape change can be suppressed.
- V when energy is stored, it is not necessary to apply energy in the mold by using a type of resin that undergoes a curing reaction.
- a type of resin there is a polymerization type resin, for example, an epoxy base material containing a polymerization initiator such as a sulfo salt salt polymerization initiator. If it is a resin of the above-mentioned type, other epoxy resin and acrylic resin may be used.
- FIG. 5 and 6 show the shape of the energy-cured resin when the spin coater is not rotating and when the spin coater is rotating and after the rotation is stopped. While the spin coater is rotating, the thickness of the energy curable resin is uniform as shown in FIG. However, after the rotation is stopped, as shown in FIG. 6, it is considered that the resin at the end portion returns to the rotating shaft side and the thickness of the end portion becomes thick.
- Fig. 7 and 8 show the shape of the energy-curing type resin during and after rotation of the spin coater when energy is applied during rotation of the spin coater. While the spin coater is rotating, the thickness of the energy curable resin is uniform as shown in Fig.
- the point to be noted is that the thickness of the energy curable resin is made constant before molding in the subsequent process. As a result of making the thickness of the energy curable resin constant before molding, it is possible to prevent excessive protrusion due to a large amount of unfilled resin due to a small amount of resin in the molding process. .
- step S0140 of Fig. 1 the base material coated with the energy curable resin is attached to the mold.
- the substrate is indicated by 2
- the energy curable resin applied on the substrate is indicated by 1.
- the mold includes a mold core 5, a mounting plate 3, an upper mold plate 4, a lower mold plate 7 and a mounting plate 10.
- the mold further includes a base compression core 8 and a base compression block 11.
- the mold structure is a cavity internal compression structure with no escape of grease. Therefore, post-finishing after molding becomes unnecessary.
- step S1050 pressure is applied to the core compression block 11 to form the energy curable resin 1 between the base material compression core 8 and the mold core 5.
- the pressure range is 5 to 20 megapascals.
- step S1060 the base material 2 and the energy curable resin 1 formed thereon are removed from the mold.
- a spin coater was used to apply the resin, but other devices such as a dispenser may be used.
- FIG. 4 shows a microlens array manufactured by the method of the present invention.
- a single-sided convex microlens that also serves as an energy curable resin is disposed on the substrate.
- the number of microlenses does not correspond to the actual number for the sake of simplicity.
- the substrate dimensions are about 60 mm in length and width, the diameter of the microlens is about 50 micrometers, and the sag amount of the microphone is about 10 micrometers.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004348775A JP2008036817A (ja) | 2004-12-01 | 2004-12-01 | 複合型光学素子の製造方法 |
JP2004-348775 | 2004-12-01 |
Publications (1)
Publication Number | Publication Date |
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WO2006059659A1 true WO2006059659A1 (ja) | 2006-06-08 |
Family
ID=36565092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/022020 WO2006059659A1 (ja) | 2004-12-01 | 2005-11-30 | 複合型光学素子の製造方法 |
Country Status (2)
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JP (1) | JP2008036817A (ja) |
WO (1) | WO2006059659A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013127805A1 (en) * | 2012-02-27 | 2013-09-06 | Carl Zeiss Vision International Gmbh | Carrier device for handling a lens |
US10442053B2 (en) | 2012-02-27 | 2019-10-15 | Carl Zeiss Vision International Gmbh | Method for handling a lens |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5513720B2 (ja) * | 2008-05-29 | 2014-06-04 | Hoya株式会社 | プラスチックレンズの製造方法 |
JP2012071489A (ja) * | 2010-09-28 | 2012-04-12 | Fujifilm Corp | レンズの製造方法及びレンズの製造装置 |
JP5525985B2 (ja) * | 2010-09-29 | 2014-06-18 | 富士フイルム株式会社 | レンズの製造方法及び製造装置 |
US10278785B2 (en) | 2015-12-18 | 2019-05-07 | Novartis Ag | Method of making diverging-light fiber optics illumination delivery system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03239510A (ja) * | 1990-02-16 | 1991-10-25 | Hitachi Ltd | 放射線硬化樹脂の成形方法 |
JPH04504087A (ja) * | 1989-12-05 | 1992-07-23 | イノテック・インコーポレーテッド | 眼鏡用高品質プラスチックレンズを製造する方法 |
JP2002105177A (ja) * | 2000-09-29 | 2002-04-10 | Ricoh Co Ltd | 光硬化型エポキシ樹脂組成物 |
JP2002277614A (ja) * | 2000-09-18 | 2002-09-25 | Kuraray Co Ltd | フレネルレンズシートの製造方法およびフレネルレンズシートの成形型の製造方法 |
JP2003286301A (ja) * | 2002-01-22 | 2003-10-10 | Omron Corp | 2段階硬化型樹脂組成物、微細賦形成形物およびその製造方法、ならびに精密機器 |
-
2004
- 2004-12-01 JP JP2004348775A patent/JP2008036817A/ja active Pending
-
2005
- 2005-11-30 WO PCT/JP2005/022020 patent/WO2006059659A1/ja not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04504087A (ja) * | 1989-12-05 | 1992-07-23 | イノテック・インコーポレーテッド | 眼鏡用高品質プラスチックレンズを製造する方法 |
JPH03239510A (ja) * | 1990-02-16 | 1991-10-25 | Hitachi Ltd | 放射線硬化樹脂の成形方法 |
JP2002277614A (ja) * | 2000-09-18 | 2002-09-25 | Kuraray Co Ltd | フレネルレンズシートの製造方法およびフレネルレンズシートの成形型の製造方法 |
JP2002105177A (ja) * | 2000-09-29 | 2002-04-10 | Ricoh Co Ltd | 光硬化型エポキシ樹脂組成物 |
JP2003286301A (ja) * | 2002-01-22 | 2003-10-10 | Omron Corp | 2段階硬化型樹脂組成物、微細賦形成形物およびその製造方法、ならびに精密機器 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013127805A1 (en) * | 2012-02-27 | 2013-09-06 | Carl Zeiss Vision International Gmbh | Carrier device for handling a lens |
US9421659B2 (en) | 2012-02-27 | 2016-08-23 | Carl Zeiss Vision International Gmbh | Carrier device for handling a lens |
US10442053B2 (en) | 2012-02-27 | 2019-10-15 | Carl Zeiss Vision International Gmbh | Method for handling a lens |
Also Published As
Publication number | Publication date |
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JP2008036817A (ja) | 2008-02-21 |
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