WO2005080284A1 - 光学素子の製造方法 - Google Patents
光学素子の製造方法 Download PDFInfo
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- WO2005080284A1 WO2005080284A1 PCT/JP2005/002246 JP2005002246W WO2005080284A1 WO 2005080284 A1 WO2005080284 A1 WO 2005080284A1 JP 2005002246 W JP2005002246 W JP 2005002246W WO 2005080284 A1 WO2005080284 A1 WO 2005080284A1
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- compound
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- glass substrate
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/13—Integrated optical circuits characterised by the manufacturing method
- G02B6/132—Integrated optical circuits characterised by the manufacturing method by deposition of thin films
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/008—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in solid phase, e.g. using pastes, powders
Definitions
- the present invention relates to a method for manufacturing an optical element, and more particularly to a method for manufacturing an optical element made of glass having at least a part of a region having a different refractive index.
- signal light propagating through an optical fiber is extracted as parallel light outside the optical fiber, and conversely, the parallel light is focused on the end face of the optical fiber.
- An optical fiber collimator is used to cause the light to enter the optical fiber.
- an optical function element for example, an optical filter, an optical isolator, an optical switch, an optical modulator, etc.
- the signal light can be focused on the single-mode optical fiber on the light receiving side and re-propagated.
- collimating lens used in an optical fiber collimator compared to a spherical lens or an aspherical lens having a complicated shape in which various shapes of lenses are used, polishing and polishing during manufacturing are easier. For this reason, cylindrical graded index lenses (also called rod lenses, GRIN lenses, etc.) are commonly used.
- the refractive index distribution type lens has a lens function typified by focusing of light, etc., because the refractive index inside the rod glass has a continuous distribution from the center in the radial direction. .
- a method of manufacturing such a gradient index lens conventionally, in order to form a refractive index distribution in a radial direction of a glass rod, for example, an ion exchange method, a double crucible method, a CVD method (gas phase) Deposition methods), sol-gel methods, rod-in-tube methods and the like are known.
- the ion exchange method involves immersing a homogeneous glass rod in a molten salt containing monovalent cations (K +, Tl +, Ag +, etc.), and mixing the monovalent cations (Na +, etc.) contained in the glass with the molten salt.
- Patent Document 1 discloses that a glass rod containing a Na component is used for a molten salt containing Ag +.
- a method for producing a refractive index distribution type lens by performing ion exchange to form a refractive index distribution in a radial direction of a rod has been disclosed.
- a microlens array in which lenses of several tens of microns and sub-millimeters are arranged by applying a refractive index distribution by such ion exchange to a flat glass is also used between computer boards.
- a refractive index distribution by such ion exchange is also used between computer boards.
- an optical waveguide is cited as an optical element manufactured by forming such a refractive index distribution.
- a method of forming an optical waveguide a thin film deposition method is known, and is a method of depositing an optical waveguide layer containing silica as a main component on a substrate such as silicon.
- a sputtering method, a CVD method, a flame deposition method and the like are known.
- CVD and flame deposition SiH
- the substrate is exposed to a high temperature of about 1200 to 1300 ° C in the manufacturing process, the substrate is easily degraded, and the internal stress is generated in the substrate, thereby causing polarization of the guided light. There are also problems such as increased dependence.
- An ion exchange method is also known as a method for forming an optical waveguide.
- a multi-component glass containing Na + ions is used as a substrate, which is immersed in a molten salt containing K + ions, T1 + ions, Ag + ions, and the like.
- Na + ions in the glass are exchanged with K + ions, T1 + ions, Ag + ions, etc. in the molten salt.
- an electric field may be applied during ion exchange to accelerate the ion exchange rate, ion diffusion rate, and the like.
- the optical waveguide layer can be formed by increasing the refractive index of the ion-exchanged glass portion.
- Such an ion exchange method does not require a high vacuum unlike the thin film deposition method, and the temperature of the molten salt is usually about 250 to 400 ° C, and the production equipment is inexpensive.
- the ion exchange rate and the diffusion rate of ions in the glass substrate are affected by the composition and temperature of the molten salt, strict control of the composition and temperature of the molten salt is required. It becomes.
- the temperature of ion exchange depends on the melting temperature of the molten salt, the ion exchange method using a molten salt is used to produce an optical element having a desired refractive index profile. Composition of A high degree of know-how is required in determining ion exchange conditions such as temperature, time, and the like.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2001-159702
- the main object of the present invention is to provide a method for manufacturing an optical element that does not require a high vacuum and does not use a molten salt unlike the thin film deposition method.
- the inventor of the present invention has conducted intensive studies to achieve the above object, and as a result, a specific compound containing at least one selected from a lithium compound, a potassium compound, a rubidium compound, a cesium compound, a silver compound and a thallium compound has been obtained.
- a paste to diffuse Li + ions, K + ions, Rb + ions, Cs + ions, Ag + ions, T1 + ions, etc. into a glass substrate a manufacturing method that forms regions with different refractive indices in the glass substrate According to the finding, the above object can be achieved, and the present invention has been completed.
- the present invention relates to the following optical element manufacturing method.
- a glass substrate containing an alkali metal component as a glass component is provided with at least one selected from lithium compounds, potassium compounds, rubidium compounds, cesium compounds, silver compounds and thallium compounds, organic resins and organic solvents.
- a method for producing an optical element which comprises applying a paste containing, and heat-treating the paste at a temperature lower than the softening temperature of the glass substrate.
- Glass base strength A glass base containing at least 2% by weight of an alkali metal component in terms of oxide, wherein the glass is a silicate glass, a borosilicate glass, a phosphate glass or a fluorophosphate glass. 2. The production method according to Item 1, above.
- optical element manufactured by the manufacturing method according to the above item 1 or 2.
- optical element according to the above item 3 which is a gradient index lens, a gradient index lens array, an optical waveguide or a diffraction grating.
- optical element according to the above item 4 which is a slab-type or channel-type optical waveguide.
- the optical element in the present invention provides desired optical characteristics by utilizing a region having a refractive index different from that of the substrate or a region having a refractive index distribution formed on at least a part of the glass substrate. This means that it exerts its effect, and specifically includes a gradient index lens, a gradient index lens array, an optical waveguide, a diffraction grating, and the like.
- alkali metal component in the glass substrate examples include Li, Na, K, Rb, Cs and the like, and among them, Li, Na, K and the like are particularly preferable, and Na is particularly preferable.
- These alkali metal components may exist in an ionic state or as an oxide.
- the alkali metal component may be present alone, or two or more may be present simultaneously.
- the content of the alkali metal component in the glass substrate is suitably about 2% by weight or more, and preferably about 5% by weight or more in terms of oxidized product. More preferably, it is more than about.
- the upper limit of the alkali metal component is not particularly limited, it is suitably about 40% by weight, preferably about 30% by weight in terms of oxidized product, and is preferably about 20% by weight. Is more preferable.
- any glass containing an alkali metal component can be used without particular limitation.
- silicate glass, borosilicate glass, phosphate glass, fluorophosphate glass, or the like can be used.
- composition of these glasses is not particularly limited, and is a glass having a composition known as silicate glass, borosilicate glass, phosphate glass, fluorophosphate glass, or the like. Any material containing the above-mentioned alkali metal component can be used.
- Such a glass thread include, for example, the following 1) to 14) in terms of the amount converted into an oxidized product.
- Seed 5 25 weight 0/0, preferably 7 20 wt 0/0, MgO, BaO, ZnO, SrO and PbO force et chosen at least one: 2 wt% or less, preferably 1.5 wt% The following (however, in order to sufficiently obtain the predetermined effect, the lower limit is preferably set to about 0.1% by weight).
- the lower limit is preferably about 0.5% by weight), and at least one of Fe 2 O and SO
- Seed 2 20 weight 0/0, preferably 5-15 wt 0/0, MgO, CaO, BaO, ZnO, SrO and P bO force also chosen at least one: 30 wt% or less, preferably 25 wt% The following (however, the lower limit is desirably about 1% by weight in order to obtain a sufficient effect), A1
- La O, Y O, Ta O and Gd O force At least one selected: 15% by weight or less
- NbO and ZrO forces at least one selected from: 2
- Wt% or less preferably 1 wt% or less (however, in order to obtain a sufficient effect, the lower limit value is preferably about 0.05 wt%), selected from AsO, SbO, and SnO.
- the shape of such a glass substrate is not particularly limited, and can be appropriately set according to the use of the final product.
- shapes suitable for lenses, lens arrays, optical waveguides, diffraction gratings, and the like can be widely used, and specific examples include plate, column, and prism shapes.
- a substrate having a desired shape may be used by polishing a glass lump having the above-described composition, or a glass melt having the above-described composition may be formed into a substrate having a desired shape by shaping. If necessary, a polished one may be used.
- a glass substrate containing such an alkali metal component as a glass component is used, and a lithium compound, a potassium compound, a rubidium compound, a cesium compound, a silver halide compound, Thallium compound power A paste containing at least one selected from is applied, and heat treatment is performed at a temperature lower than the softening point of the glass substrate.
- these compounds are also referred to as “metal compounds”.
- the paste is prepared by dispersing at least one selected from a lithium compound, a potassium compound, a rubidium compound, a cesium compound, a silver halide compound, and a thallium compound powder and an organic resin in an organic solvent.
- the shape is used.
- Such a paste has an appropriate viscosity that can be applied to a glass substrate, and diffuses at least one selected from lithium, potassium, rubidium, cesium, silver and thallium ions by heat treatment.
- the paste is not particularly limited as long as it is a paste containing the above-mentioned metal compound. Specifically, the paste viscosity may be appropriately determined in consideration of the application method, paste composition, diffusion conditions to the base material, and the like.
- the metal compound contained in the paste is not particularly limited as long as it is an ion-bonding metal compound capable of diffusing each metal ion into a glass substrate by heat treatment, but it is particularly preferable to use inorganic salts. Specific examples of each metal compound are shown below.
- lithium compounds include LiNO, LiCl, LiBr, Lil, LiF, and LISO.
- LiNO, LiSO, etc. are particularly preferred.
- Examples of the potassium compound include KNO, KC1, KBr, KI, KF, and KSO.
- KNO, KSO and the like are particularly preferable.
- Examples of the rubidium compound include RbNO, RbCl, RbBr, Rbl, RbF, and RbSO.
- RbNO, RbSO and the like are particularly preferable.
- Examples of the cesium compound include CsNO, CsCl, CsBr, Csl, CsF, and CsSO.
- CsNO and CsSO are particularly preferable.
- silver compound for example, AgNO, AgCl, AgBr, Agl, AgF, Ag S, Ag SO
- AgNO is particularly preferred.
- Examples of the thallium compound include T1NO, T1C1, TlBr, Til, T1F, TlS, TlSO,
- TlO and the like are particularly preferred.
- T1NO is particularly preferred.
- These metal compounds may be used alone or in a combination of two or more.
- the organic resin contained in the paste is preferably one that can be easily removed by washing with water, using a resin that decomposes at a heat treatment temperature.
- a resin that decomposes at a heat treatment temperature for example, cellulose resin, methylcellulose resin, cellulose acetate resin, cellulose acetate-tolate resin, cellulose acetate butylate resin, acrylic resin, petroleum resin, and the like having such properties can be mentioned.
- These organic resins can be used alone or as a mixture of two or more. May be.
- the organic solvent used in the paste preferably disperses the metal compound and the organic resin easily and volatilizes easily upon drying. More specifically, at room temperature (20 ° C (Degree), a solvent which is liquid and volatilizes at about 50 to 200 ° C. is preferable. Specific examples of such a solvent include alcohols such as methanol, ethanol, and terbineol; dimethyl ether; ketones such as acetone.
- additives may be added to the paste.
- Na SO Na SO
- NaNO NaNO
- the mixing amount of the agent is not particularly limited, but is 200 parts by weight or less, preferably 180 parts by weight or less based on 100 parts by weight of the metal compound.
- the content of each component in the paste can be appropriately set according to the properties of the final product.
- the metal compound is a potassium compound, a rubidium compound or a cesium compound
- the content is based on 100 parts by weight of the metal compound.
- the organic solvent is 2 to 25 parts by weight, preferably 520 parts by weight
- the resin component is 15 to 45 parts by weight, preferably 20 to 40 parts by weight
- the additive is 3 parts by weight or less.
- KNO as a potassium compound
- RbNO as a rubidium compound
- the metal compound is a silver halide compound or a thallium compound
- the organic solvent is 15 to 45 parts by weight, preferably 20 to 40 parts by weight
- the resin component is 100 parts by weight of the metal compound.
- the amount is 50 to 170 parts by weight, preferably 70 to 150 parts by weight
- the additive is 180 parts by weight or less, preferably 160 parts by weight or less.
- AgNO was used as a silver tie
- T1NO was used as a thallium compound.
- the organic solvent is 10 to 50 parts by weight, preferably 15 to 45 parts by weight, and the resin component is 40 to 180 parts by weight, preferably 100 parts by weight of the metal compound.
- the additive is 180 parts by weight or less, preferably 160 parts by weight or less.
- Li SO is used as the lithium compound, this compounding mode is preferable.
- the paste is applied to a glass substrate.
- the shape is not particularly limited, and can be appropriately set according to the characteristics of each optical element.
- a paste may be applied to a desired portion of a substrate in a shape usable as a lens.
- the radius is usually about 5 ⁇ m-lmm, preferably about 10 ⁇ m-0.5 mm.
- the pattern spacing, the size of a circle or a dot, etc. may be adjusted according to a desired lens pattern.
- the patterning interval is not particularly limited, but is usually 1 cm or less, preferably 500 ⁇ m or less, and more preferably 250 ⁇ m or less.
- the application method is not particularly limited, and any known application method may be appropriately employed. For example, a method such as Sbean coat, spray coat, or dip coat can be applied.
- a method such as Sbean coat, spray coat, or dip coat can be applied.
- the paste may be dropped onto the base material using a syringe, a dispenser, a single dispenser, or the like, or precise circular microdots may be formed.
- a printing technique for example, printing using an inkjet method may be used.
- linear patterning may be performed. Screening (screen printing) used for staining or the like may be used for the linear pattern Jung.
- the linear width can be appropriately set according to the desired characteristics of the optical element (optical waveguide, diffraction grating, etc.).
- the glass substrate surface is patterned with an inorganic film by photolithography, and a paste containing a metal compound is applied to the exposed portion of the glass substrate. .
- the following is an example of a procedure for forming an optical waveguide, in which a glass substrate surface is patterned by an inorganic film by a photolithography method, and a paste containing a metal compound is applied to an exposed portion of the glass substrate.
- the procedure for forming a channel type optical waveguide by heat treatment will be briefly described.
- a metal such as Al, Ti, and Ag, an oxide such as SiO, and the like are vapor-deposited on a glass substrate to form an inorganic material.
- the thickness of the deposited inorganic film is not particularly limited, but is preferably about 0.25—: m, more preferably about 0.25-0.5 / zm.
- a photoresist agent is applied thereon.
- the photoresist agent a commercially available organic photoresist agent may be used.
- the application method is not particularly limited, but, for example, a method such as spin coating, spray coating, and dip coating can be employed.
- a metal plate provided with a pattern jungle is placed on the photo resist agent, exposed to ultraviolet rays, and developed to form a pattern of a photoresist agent.
- a channel-type optical waveguide can be formed by applying a paste containing the metal compound on the inorganic film to the exposed portion of the glass substrate and performing a heat treatment (the conditions will be described later).
- a slab-type optical waveguide can be formed by applying paste on the entire surface of the glass substrate and performing heat treatment.
- the thickness of the application is not particularly limited, and can be appropriately set depending on the type and the content of the metal compound contained in the paste. .5 mm or less, particularly preferably lmm or less.
- the coating film is usually dried prior to heat treatment.
- the drying conditions are not particularly limited. It is sufficient if the paste is dried so that the solvent components are sufficiently removed and the paste is dried.
- the temperature is 100 to 250 ° C for 30 minutes to 1.5 hours, preferably 150 to 200 °. Heating for 45 minutes to 1 hour at C enables efficient drying.
- the heat treatment temperature is usually in the range of about 250 to 600 ° C, preferably about 300 to 550 ° C, and may be lower than the softening point of the glass substrate.
- the heat treatment time is a force that can be appropriately set according to the temperature. Usually, it is 10 minutes to 100 hours, preferably about 30 minutes to 50 hours, particularly preferably about 125 hours.
- the atmosphere for the heat treatment is not particularly limited, and may be usually in an oxygen-containing atmosphere such as air.
- predetermined metal ions diffuse into the glass substrate.
- the diffused metal ions vary depending on the processing conditions, but exist in the form of metal ions, metal oxides, fine metal particles, etc., and the diffused part has a different refractive index from the glass base part. .
- the distribution of the refractive index is continuous, and the refractive index of the surface of the substrate on which the paste is applied is usually maximum, and the refractive index increases as the diffusion depth increases. The rate will be smaller. Further, for example, in the case of coating in a circular shape, the refractive index decreases continuously from the center of the circle in the radial direction.
- the paste is usually allowed to cool to room temperature, and the paste residue remaining on the base material may be washed with water.
- the production method of the present invention is useful not only for the production of the optical element specifically described above, but also for the production of an element capable of optically utilizing the change in the refractive index or the distribution of the refractive index given to the substrate. is there.
- the production method of the present invention it is possible to apply a paste containing a specific metal compound to a glass base containing an alkali metal component, and heat the paste in the air or the like to obtain a desired glass base.
- a region or a refractive index distribution having a different refractive index from the base material in the portion an optical element utilizing the difference in refractive index or the refractive index distribution can be manufactured. According to this method, an optical element can be manufactured at low cost without requiring a complicated manufacturing process.
- the heat treatment temperature and the metal compound concentration in the paste that require strict control of the molten salt can be independently controlled. Furthermore, unlike immersion in a molten salt, it is not necessary to form a mask such as a blocking film on the base material in order to apply the paste to a desired site on the base material.
- FIG. 1 is a view showing a distribution of silver in a Y-shaped optical waveguide manufactured in Example 1. In the figure, FIG. 1
- FIG. 2 is a diagram showing a refractive index distribution in a depth direction of a Y-shaped optical waveguide manufactured in Example 1.
- FIG. 3 is a view showing the results of measuring the reflection intensity of a prism for confirming that the slab-type optical waveguide manufactured in Example 1 guides light.
- FIG. 4 is a diagram showing a distribution (surface layer) of silver of the microlens manufactured in Example 2.
- FIG. 5 is a diagram showing a refractive index distribution in the depth direction (the center of a circle) of the microlens manufactured in Example 2.
- FIG. 6 is a schematic diagram of paste patterning in the production of the microlens array of Example 3.
- 200 / zm indicates the diameter of the application circle
- 300 / zm indicates the pattern Jung interval of the application circle.
- FIG. 7 is a view showing a distribution (surface layer) of silver in one lens of the microlens array manufactured in Example 3.
- FIG. 8 is a diagram showing a refractive index distribution in the depth direction (the center of a circle) of one lens of the microlens array manufactured in Example 3.
- An optical waveguide was manufactured by the following method using Omm ⁇ width 20 mm ⁇ thickness 3 mm).
- Paste composed of 15% by weight of rill resin, 15% by weight of cellulose resin and 5% by weight of terbineol (20 parts by weight of organic solvent, 120 parts by weight of resin component with respect to 100 parts by weight of silver paste) Parts and 160 parts by weight of additives) were applied in a Y-shape (line width: 100 m) by screening. The paste was applied to a thickness of lmm.
- the glass substrate coated with the paste was dried at 200 ° C for 1 hour, and then heat-treated at 300 ° C in air for 3 hours.
- FIG. 1 shows the silver distribution measurement results.
- (a) is the start point of the optical waveguide, and (b) is the end point.
- the lower end of the Y-shape is the starting point, and the upper two ends are the end points.
- a slab-type optical waveguide is manufactured by the above method, and the prism coupling method is used! ,hand
- Figure 3 shows the relationship between the measurement angle and the detection intensity.
- a microlens was prepared by the following method. [0067] First, after washing the glass substrate, AgNO: 25% by weight, NaNO: 40% by weight,
- Paste consisting of 15% by weight of rill resin, 15% by weight of cellulose resin and 5% by weight of terbineol (20 parts by weight of organic solvent, 120 parts by weight of resin component with respect to 100 parts by weight of silver paste) And 160 parts by weight of additives) were applied in a circular shape (400 ⁇ m in diameter) by dropping with a syringe. The paste was applied to a thickness of lmm.
- the glass substrate coated with the paste was dried at 200 ° C for 1 hour, and then heat-treated at 300 ° C in air for 3 hours.
- the refractive index difference between the glass substrate is about 1 X 10- 2 increases at the maximum, at the center of the coated circular surface It was a component that the distribution of the refractive index occurred from to about 6 m.
- Figure 5 shows the refractive index distribution in the depth direction (the center of the circle).
- SiO 54% by weight
- BO 22% by weight
- Al O 10% by weight
- ZnO 2% by weight glass base material (length 10mm X width 10mm X
- a gradient index microlens array was produced by the following method.
- Paste consisting of 15% by weight of rill resin, 15% by weight of cellulose resin and 5% by weight of terbineol (20 parts by weight of organic solvent, 120 parts by weight of resin component with respect to 100 parts by weight of silver paste) And 160 parts by weight of additives) were dropped by a dispenser dispensing tester and applied in a circular shape (200 / zm in diameter).
- the application was performed at 20 X 20 points (400 points in total) with a putter Jung interval (interval from the center of the circle to the center of the adjacent circle) of 300 m.
- the paste thickness was 0.2 mm.
- Fig. 6 shows a schematic diagram of Putter Jung.
- the glass substrate coated with the paste was dried at 200 ° C. for 1 hour, and then heat-treated at 300 ° C. in air for 12 hours.
- the refractive index difference between the glass substrate is approximately 4 X 10- 2 increases up to, at the center of the coated circular surface It was a component that the distribution of the refractive index occurred from to about 15 m.
- Figure 8 shows the refractive index distribution in the depth direction (the center of the circle).
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05719148A EP1719740A4 (en) | 2004-02-20 | 2005-02-15 | METHOD FOR PRODUCING AN OPTICAL DEVICE |
JP2006510199A JP4644844B2 (ja) | 2004-02-20 | 2005-02-15 | 光学素子の製造方法 |
US10/589,720 US7522803B2 (en) | 2004-02-20 | 2005-02-15 | Process for producing optical device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004044734 | 2004-02-20 | ||
JP2004-044734 | 2004-02-20 |
Publications (1)
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WO2005080284A1 true WO2005080284A1 (ja) | 2005-09-01 |
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PCT/JP2005/002246 WO2005080284A1 (ja) | 2004-02-20 | 2005-02-15 | 光学素子の製造方法 |
Country Status (4)
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US (1) | US7522803B2 (ja) |
EP (1) | EP1719740A4 (ja) |
JP (1) | JP4644844B2 (ja) |
WO (1) | WO2005080284A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2007018212A1 (ja) * | 2005-08-08 | 2007-02-15 | National Institute Of Advanced Industrial Science And Technology | 光線指向性化ガラス基板及びそれを用いた照明装置 |
JP2008247626A (ja) * | 2007-03-29 | 2008-10-16 | Isuzu Seiko Glass Kk | 紫外線吸収能を有する屈折率分布型光学素子の製造方法 |
JP2012009616A (ja) * | 2010-06-24 | 2012-01-12 | Asahi Glass Co Ltd | 発光装置用レンズ |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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ES2528990B2 (es) * | 2014-08-25 | 2015-05-29 | Universidade De Santiago De Compostela | Lente GRIN activa, procedimiento de fabricación y sistema que comprende el uso de la lente |
US10197732B2 (en) * | 2016-08-26 | 2019-02-05 | Corning Optical Communications LLC | Methods for forming ion-exchanged waveguides in glass substrates |
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US4017318A (en) * | 1976-01-02 | 1977-04-12 | Corning Glass Works | Photosensitive colored glasses |
US4285988A (en) * | 1977-11-30 | 1981-08-25 | Ppg Industries, Inc. | Stained glass photomasks and method of making by electrodealkalization |
US6330388B1 (en) * | 1999-01-27 | 2001-12-11 | Northstar Photonics, Inc. | Method and apparatus for waveguide optics and devices |
DE60234122D1 (de) * | 2001-12-20 | 2009-12-03 | Isuzu Glass Co Ltd | Verfahren zur bildung eines optischen wellenleiters |
US6876796B2 (en) * | 2002-01-30 | 2005-04-05 | Photon-X, Llc | Nanocomposite microresonators |
WO2005080283A1 (ja) * | 2004-02-20 | 2005-09-01 | Isuzu Glass Co., Ltd. | 屈折率分布型光学素子の製造方法 |
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2005
- 2005-02-15 WO PCT/JP2005/002246 patent/WO2005080284A1/ja active Application Filing
- 2005-02-15 EP EP05719148A patent/EP1719740A4/en not_active Withdrawn
- 2005-02-15 US US10/589,720 patent/US7522803B2/en not_active Expired - Fee Related
- 2005-02-15 JP JP2006510199A patent/JP4644844B2/ja not_active Expired - Fee Related
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2007018212A1 (ja) * | 2005-08-08 | 2007-02-15 | National Institute Of Advanced Industrial Science And Technology | 光線指向性化ガラス基板及びそれを用いた照明装置 |
JP2008247626A (ja) * | 2007-03-29 | 2008-10-16 | Isuzu Seiko Glass Kk | 紫外線吸収能を有する屈折率分布型光学素子の製造方法 |
WO2008123378A1 (ja) * | 2007-03-29 | 2008-10-16 | Isuzu Glass Co., Ltd. | 紫外線吸収能を有する屈折率分布型光学素子の製造方法 |
JP2012009616A (ja) * | 2010-06-24 | 2012-01-12 | Asahi Glass Co Ltd | 発光装置用レンズ |
Also Published As
Publication number | Publication date |
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JP4644844B2 (ja) | 2011-03-09 |
US20080226248A1 (en) | 2008-09-18 |
JPWO2005080284A1 (ja) | 2007-10-25 |
EP1719740A4 (en) | 2010-12-29 |
EP1719740A1 (en) | 2006-11-08 |
US7522803B2 (en) | 2009-04-21 |
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