EP2382506A1 - Eyeglass frame with embedded decorative design pattern and manufacturing method thereof - Google Patents
Eyeglass frame with embedded decorative design pattern and manufacturing method thereofInfo
- Publication number
- EP2382506A1 EP2382506A1 EP09837246A EP09837246A EP2382506A1 EP 2382506 A1 EP2382506 A1 EP 2382506A1 EP 09837246 A EP09837246 A EP 09837246A EP 09837246 A EP09837246 A EP 09837246A EP 2382506 A1 EP2382506 A1 EP 2382506A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- eyeglass frame
- eyeglass
- frame according
- sheet laminate
- thermoplastic sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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
- B29D12/00—Producing frames
- B29D12/02—Spectacle frames
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
- B29C39/006—Monomers or prepolymers
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
-
- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C45/14221—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure by tools, e.g. cutting means
-
- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
-
- 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
- B29L2012/00—Frames
- B29L2012/005—Spectacle frames
Definitions
- the invention relates generally to eyeglass frames with decorative patterns and a related method for preparing the same. More specifically, the invention relates to a protective coating for eyeglass frames.
- Eyeglass designers have been making continuous efforts in designing a great variety of eyeglasses to satisfy consumers' needs and tastes. Eyeglasses can alleviate eye defects such as myopia, hyperopia or astigmatism, or protect the eyes against bright daylight and ultraviolet light from the sun, and hence have become an essential product in daily life. Being worn on the face, it is often desirable that the design of eyeglasses are aesthetically pleasing. Eyeglasses also serve as a fashion accessory and even form part of the identity of some celebrities. The ornamentation of eyeglasses are available in a wide range of styles, materials, premium designs, and further decorated with a selection of colors and patterns in the frames, including temples, eyeglass fronts, rims and bridges, to meet the preference of different consumers.
- the decorative designs are two dimensional patterns or graphics.
- such patterns are usually transferred on to the surface materials, and further coated with a protective plastic layer. Because the protective layer can be worn out after prolonged use, ultimately the transferred patterns will also be depleted.
- laminate material for eyeglass frames were developed and manufactured by the following known method in which a first plastic sheet is first pasted with a glue layer, which is then printed with desired patterns by silk screen printing.
- the intermediate laminate is pasted with another glue layer and glued to a second plastic sheet, and subsequently adhered together by hot compression.
- the resulting laminate has decorative patterns embedded between the two plastic sheets and is difficult to wear out during use.
- the relevant configuration and manufacturing process of such a laminate is complex, and has a lengthy production cycle. Further, a different silk screen is required if a different pattern is to be printed, resulting in low productivity and high manufacturing cost.
- Cellulose Acetate is one of the most common thermoplastic materials used in making eyewear. It allows patterns to be transferred on thermoplastic sheets and overcomes the limitation for injection plastics.
- eyeglass thermoplastic sheeting has to be coated with a glue layer, and then printed with patterns by silk screen printing. When the ink dries up, another glue layer will be coated and adhered to a second plastic sheet by compression or thermal process.
- Silk screen printing requires one mask for each monochrome and only one monochrome can be printed at each time.
- a different set of silk screens is required. It also takes a long time to verify the silk screen pattern and the effect on sheet material, resulting in an extended production cycle. Furthermore, the pattern cannot be very fine because the ink is applied to the back of the image carrier and pushed through porous or open areas.
- the conventional method is also limited to producing two dimensional patterns or graphics.
- thermoplastic laminate printed with internal decorative patterns for eyeglass frames and its manufacturing process has been disclosed in patent publication nos. WO2007/128196 and USl 1/734,903.
- the referenced manufacturing process is, due to the complexity, done manually, thus resulting in a lengthy production cycle.
- the stability of the eyewear is limited and the uniformity as well as the dimension of the eyewear cannot be easily controlled based on such manufacturing process, resulting in low productivity and high manufacturing cost with poor aesthetic.
- a further consequence of the poor stability is that internal stresses may be set up in the frame, which are self relieved over time. As the frame relaxes naturally this can cause the lens to deform affecting its corrective power.
- a first aspect of the presently claimed invention is to provide an eyeglass frame containing a thermoplastic sheet laminate incorporating one or more transfer printing eyeglass decorative patterns and a one or more covering layers; wherein the covering layers bond to the thermoplastic sheet laminate incorporating transfer printing eyeglass decorative patterns.
- thermoplastic sheet laminate incorporating transfer printing eyeglass decorative patterns preferably comprises: a plurality of core layers of thermoplastic sheets printed with patterns by transfer printing, a first overlay layer of thermoplastic sheet; a second overlay layer of thermoplastic sheet; wherein said core layers are sandwiched between said first overlay layer and said second overlay layer.
- the core layers may further partially or wholly enclose particles or three dimensional articles.
- the three dimensional articles enclosed in the core layers may be dry flowers, rhinestones, dry leaves or metal foil logos.
- the core layers may further enclose at least one kind of fluid, said fluids being immiscible with each other.
- the fluid enclosed in core layers may be colored or clear water, oil based fluid, or liquid silicone.
- the transfer printing may be heat pressing transfer, water transfer, vapor transfer, screen printing, or stencil printing.
- the thermoplastic may be cellulose acetate, cellulose acetate propionate, polycarbonate, thermoplastic elastomer, nylon, polyester or polyester copolymer.
- the core layers and overlay layers may be adhered together by application of an adhesive substance, application of heat, or application of pressure.
- the core layers and overlay layers may be bonded together by thermoform or lamination.
- the patterns printed on core layers may be monochromatic or polychromatic.
- thermoplastic sheet laminate incorporating transfer printing eyeglass decorative patterns comprises the steps of: a) preparing a plurality of core layers, a first overlay layer and a second overlay layer from thermoplastic sheets, b) printing patterns on said core layers by transfer printing, c) layering from top to bottom said first overlay layer, said core layers and said second overlay layer, and d) bonding the layer of sheets from step (c).
- the bonding step may be the application of adhesive substance, application of heat, or application of pressure.
- the bonding step may be the step of thermoform or lamination.
- the bonding step may comprise the step of applying a temperature in the range of 0 to 300 degrees Celsius and a pressure starting from 0 atmospheres.
- the process may further comprise the step of laying particles on core layers before bonding said composite layer of sheets.
- the process of manufacturing the thermoplastic sheet laminate incorporating transfer printing eyeglass decorative patterns may further comprise the steps of: a) making cavities in said core layers before applying heat to said composite layer of sheets to enclose three dimensional articles or fluids, and b) positioning or filling said articles or fluids in said cavities.
- the thermoplastic may be cellulose acetate, cellulose acetate propionate, polycarbonate, TPE or nylon.
- the transfer printing may be heat pressing transfer, water transfer, vapor transfer, screen printing, or stencil printing.
- the heat pressing transfer may be a process of temperature in the range of 0 to 300 degrees Celsius.
- the three dimensional articles enclosed in core layers may be dry flowers, rhinestones, dry leaves or metal foil logo.
- the fluid enclosed in core layers may be colored or clear water, oil based fluid or liquid silicone. Other fluids, articles or combinations of such may be used.
- the or each covering layer acts as a protective layer for the thermoplastic sheet laminate incorporating transfer printing eyeglass decorative patterns.
- These covering layers may bond to a first side ("the top") and to a second side ("the bottom") of the thermoplastic sheet laminate incorporating transfer printing eyeglass decorative patterns. Alternatively the covering layers may bond to one of the two sides only.
- the covering layer may wholly substantially or partially cover the thermoplastic sheet laminate incorporating transfer printing eyeglass decorative patterns.
- the internal layer comprising the thermoplastic sheet laminate is wholly sealed within the covering layers.
- the covering layers used are made of thermoplastic or thermosetting plastic and they may be any of transparent, semi-transparent or non-transparent, either in whole or in part.
- the thermoplastic materials may be any of cellulose acetate, cellulose acetate propionate, polycarbonate, thermoplastic elastomer, nylon, polyester or polyester copolymer.
- the thermosetting materials may be epoxy or polyurethane.
- the second aspect of the present invention is to provide a manufacturing process for eyeglass frames. The process comprises the steps of: a) preparing a thermoplastic sheet laminate incorporating eyeglass decorative patterns; b) bending the thermoplastic sheet laminate incorporating eyeglass decorative patterns under heat and pressure forming a one or more intermediate products in a first mold; c) bonding a one or more covering layers to the intermediate products from step b in a second mold.
- the bending step is carried out at a temperature between 40 to 250 degrees Celsius, selected according to the materials.
- the process of the bonding step may be by injection molding or casting.
- the bonding step may involve heating the eyeglass at a temperature in the range of 0 to 300 degrees Celsius.
- the bonding step may optionally or alternatively involve applying pressure.
- the covering layers may also be applied to already suitably prepared new or suitably cleaned old frames.
- Fig. 1 is a top down view of an eyeglass containing a thermoplastic sheet laminate incorporating transfer printing eyeglass decorative patterns and one or more covering layers.
- Fig. 2 is a flow chart of the manufacturing process of eyeglass frames.
- the preferred method described herein provides eyeglass frames with thermoplastic sheet laminate incorporating transfer printing decorative patterns and covering layers, which will not be affected by external conditions during use, and provides further advantages of both reducing the costs by saving materials during the manufacturing process and producing eyeglass frames with a good uniformity in profile and dimensions during mass production.
- An eyeglass frame includes thermoplastic sheet laminate incorporating transfer printing eyeglass decorative patterns and a one or more covering layers; wherein the covering layers bond to the thermoplastic sheet laminate incorporating transfer printing eyeglass decorative patterns.
- the thermoplastic sheet laminate incorporating transfer printing eyeglass decorative patterns (hereafter referred to as "the thermoplastic sheet laminate”) comprises a plurality of core layers of thermoplastic sheets printed with patterns by transfer printing, a first overlay layer of thermoplastic sheet; a second overlay layer of thermoplastic sheet; wherein said core layers are sandwiched between said first overlay layer and said second overlay layer.
- the covering layers are made of plastic which are the protective layers for the thermoplastic sheet laminate.
- Figure 1 displays eyeglasses containing the thermoplastic sheet laminate and a one or more covering layers.
- the eyeglass frame 100 comprises thermoplastic sheet laminate 120, a first covering layer 110 and a second covering layer 130.
- a first covering layer 110 bonds to the top of the thermoplastic sheet laminate 120 and a second covering layer bonds 130 to the bottom of the thermoplastic sheet laminate 120.
- the laminate is shown shaded for clarity, but the layers may or may not be visible to the naked eye. The thickness of the layers may also vary from that shown.
- a first covering layer 110 bonds to the top of the thermoplastic sheet laminate 120.
- a second covering layer bonds 130 to the bottom of the thermoplastic sheet laminate 120.
- the adhesion of the thermoplastic sheet laminate and the first and/or second covering layers can be accomplished by injection molding or casting.
- Figure 2 displays the steps in the manufacturing process of eyeglass frames containing thermoplastic sheet laminate and covering layers.
- a flat thermoplastic sheet laminate incorporating eyeglass decorative patterns is prepared in step 210 and is optionally cut to the shape and dimensions of desired eyewear.
- the flat thermoplastic sheet laminate incorporating eyeglass decorative patterns is placed in a first mold and bent under heat and pressure above 0 atmosphere in a bending step 220, thus forming a one or more intermediate products having the design curvature.
- a bonding step 230 the formed intermediate products are bonded to one or more covering layers in a second mold by injecting the material of the covering layers into said second mold.
- the bending step heat and pressure are applied.
- the bending step is carried out at a temperature between 30 to 60 degrees Celsius.
- the applied pressure should be substantially 0.2kgf/cm 2 .
- the bent intermediate product is first put into a injection mold where plastic materials are injected under the application of heat and pressure to form the first and/or second covering layers.
- the temperature and the pressure of the injection molding process depend on the plastic materials of covering layer.
- the material of covering layer is a thermal plastic such as cellulose acetate.
- the bent intermediate product is next put into a casting mold where plastic materials are injected under the application of pressure.
- a period of time after injection molding the whole casting mold is put into an oven at a certain temperature to cure.
- the oven time varies depending on the dimensions of the frames, with the casting mould being put in the oven typically for around 30 seconds after injection.
- the injected plastic materials solidify to form the first and/or second covering layers.
- the temperature of the curing process is selected based on the materials of covering layer.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Eyeglasses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2009/000012 WO2010078687A1 (en) | 2009-01-06 | 2009-01-06 | Eyeglass frame with embedded decorative design pattern and manufacturing method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2382506A1 true EP2382506A1 (en) | 2011-11-02 |
EP2382506A4 EP2382506A4 (en) | 2014-03-26 |
Family
ID=42316187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09837246.9A Withdrawn EP2382506A4 (en) | 2009-01-06 | 2009-01-06 | Eyeglass frame with embedded decorative design pattern and manufacturing method thereof |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2382506A4 (en) |
CN (1) | CN102272661B (en) |
AU (1) | AU2009337020B2 (en) |
HK (1) | HK1163261A1 (en) |
WO (1) | WO2010078687A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017053606A1 (en) | 2015-09-25 | 2017-03-30 | Materialise N.V. | Eyewear with internal channels |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8828296B2 (en) * | 2011-09-21 | 2014-09-09 | Okia Optical Company, Ltd. | Method of making eyeglass frame by injection molding |
ITPD20110306A1 (en) * | 2011-09-28 | 2013-03-29 | Safilo Spa | METHOD FOR THE MANUFACTURE OF FRAMES FOR GLASSES IN CELLULOSE ACETATE |
CN103085298B (en) * | 2013-02-04 | 2015-08-26 | 玉环县翔鹏眼镜有限公司 | A kind of preparation method of earpiece |
CN103412414B (en) * | 2013-08-16 | 2016-06-08 | 海南精功眼镜连锁有限公司 | It is with figuratum Plastic eyeglasses framework and manufacturing process thereof |
FR3012360B1 (en) | 2013-10-31 | 2016-07-22 | Alexandre Sonthonnax | METHOD FOR MANUFACTURING AN ELEMENT COMPRISING A GLASSES FRAME, AND ELEMENT OBTAINED BY SAID METHOD |
CN106660280B (en) * | 2014-04-09 | 2019-08-20 | 意大利霞飞诺生产公司 | The component for manufacturing the method for the frame assembly of glasses and being manufactured by this method |
EP3025839A1 (en) * | 2014-11-28 | 2016-06-01 | Sonthonnax, Alexandre | Method for producing an element constituting a spectacle frame, and element obtained by said method |
TWI581032B (en) * | 2015-08-26 | 2017-05-01 | Contour Optik Inc | The method of manufacturing the middle beam of glasses |
IT201700059828A1 (en) * | 2017-05-31 | 2018-12-01 | Safilo Sa Fabbrica Italiana Lavorazione Occhiali Spa | Method for manufacturing components for spectacle frames and frame components made with said method |
CN107458009A (en) * | 2017-08-30 | 2017-12-12 | 东莞捷胜光学眼镜有限公司 | A kind of composite and its moulding process that spectacle frame is made using acetate fiber |
IT201900002349A1 (en) * | 2019-02-18 | 2020-08-18 | H2C S R L | Multilayer element for making eyeglass frames, method for making this multilayer element and eyeglass frame comprising one or more multilayer elements |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1400465A (en) * | 1964-04-07 | 1965-05-28 | Berthet Bondet | Process for the manufacture of glasses branches and products obtained |
FR1560647A (en) * | 1968-02-08 | 1969-03-21 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5092666A (en) * | 1989-11-20 | 1992-03-03 | Jonathan Cress | Method and system for conformably fitting eyeglass frames |
JP2000292753A (en) * | 1999-04-09 | 2000-10-20 | Masuda Optical:Kk | Ornamental spectacle parts and their production |
JP4319882B2 (en) * | 2003-09-29 | 2009-08-26 | 大日本印刷株式会社 | Decorative sheet, decorative molded product, and injection molding simultaneous decoration method |
CN200959036Y (en) * | 2006-09-11 | 2007-10-10 | 澳加光学有限公司 | Spectacle plate materials with built-in objects |
US20070254140A1 (en) * | 2006-04-30 | 2007-11-01 | Okia Optical Co., Ltd. | Laminate for eyeglass frame with embedded design pattern and manufacturing method thereof |
CN2929760Y (en) * | 2006-04-30 | 2007-08-01 | 澳加光学有限公司 | Glasses plate material with pattern |
CN201017124Y (en) * | 2007-02-13 | 2008-02-06 | 常苡茜 | Structure of spectacle side |
CN101284424A (en) * | 2007-04-10 | 2008-10-15 | 周国新 | Preparation method of memory sheet glasses frame |
CN201035239Y (en) * | 2007-04-13 | 2008-03-12 | 陈耀丙 | Improved glasses structure |
-
2009
- 2009-01-06 AU AU2009337020A patent/AU2009337020B2/en not_active Ceased
- 2009-01-06 CN CN200980153964.7A patent/CN102272661B/en not_active Expired - Fee Related
- 2009-01-06 WO PCT/CN2009/000012 patent/WO2010078687A1/en active Application Filing
- 2009-01-06 EP EP09837246.9A patent/EP2382506A4/en not_active Withdrawn
-
2012
- 2012-04-18 HK HK12103859.0A patent/HK1163261A1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1400465A (en) * | 1964-04-07 | 1965-05-28 | Berthet Bondet | Process for the manufacture of glasses branches and products obtained |
FR1560647A (en) * | 1968-02-08 | 1969-03-21 |
Non-Patent Citations (1)
Title |
---|
See also references of WO2010078687A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017053606A1 (en) | 2015-09-25 | 2017-03-30 | Materialise N.V. | Eyewear with internal channels |
Also Published As
Publication number | Publication date |
---|---|
CN102272661A (en) | 2011-12-07 |
HK1163261A1 (en) | 2012-09-07 |
EP2382506A4 (en) | 2014-03-26 |
AU2009337020B2 (en) | 2015-02-05 |
CN102272661B (en) | 2013-06-05 |
AU2009337020A1 (en) | 2011-06-30 |
WO2010078687A1 (en) | 2010-07-15 |
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