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公开(公告)号：DE60214158T2
公开(公告)日：2007-08-23
申请号：DE60214158
申请日：2002-04-30
Applicant: ESSILOR INT
Inventor： CHIU HAO-WEN , YANG EDWIN
Abstract: Disclosed is an injection molding method. The method comprises injecting a melt of thermoplastic material at a temperature higher than the glass transition temperature (Tg) of the thermoplastic material in a molding cavity defined by a two-piece mold insert. The article is recovered after cooling and disassembling of the two piece mold insert. Each of the two pieces of the mold insert comprise at least one portion partly defining the mold cavity which is made of a material or combination of materials, other than glass, the thermal diffusivity alpha of which fulfills the condition: 1
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公开(公告)号：AT330768T
公开(公告)日：2006-07-15
申请号：AT02801139
申请日：2002-12-17
Applicant: ESSILOR INT
Inventor： CHIU HAO-WEN , YANG HSINJIN
IPC: B29C45/26 , B29C45/73 , B29D11/00 , B29K101/12 , B29L11/00
Abstract: A mold half-block possesses at least one mold recess defined transversely by the working face of a shell provided with heat-transfer parts that are intrinsic and both-way (both heating and cooling), the shell including a base that receives all of the heat-transfer parts and a removable insert fitted on the base and carrying the working face, the insert having no intrinsic heat-transfer parts and being thermally regulated solely by heat transfer with the base. The insert is in the form of a cap which fits over at least a head portion of the base, and the heat-transfer parts of the base are allocated to the head portion of the base having the insert fitted thereover.
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13.发明专利
公开(公告)号：AU2021349319A9
公开(公告)日：2024-10-10
申请号：AU2021349319
申请日：2021-09-27
Applicant: ESSILOR INT
Inventor： SHAN HAIFENG , CHIU HAO-WEN
IPC: G02C7/10
Abstract: The present disclosure relates to a laminate film structure for a wearer, intended for reflecting and absorbing near-infrared light, comprising a near-infrared reflection layer reflecting the near-infrared light that is incident on the near-infrared reflection layer, and a near-infrared absorption layer disposed between an eye of the wearer and the near-infrared reflection layer, the near-infrared reflection layer being disposed on the near-infrared absorption layer and the near-infrared absorption layer absorbing the near-infrared light.
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公开(公告)号：BR112021026807A2
公开(公告)日：2022-02-15
申请号：BR112021026807
申请日：2020-07-01
Applicant: ESSILOR INT
Inventor： JALLOULI AREF , SHAN HAIFENG , CHIU HAO-WEN
Abstract: impressão 3d fdm de lente óptica com alta clareza e resistência mecânica a divulgação inclui composição de filamento de núcleo-casca para fabricação aditiva de lentes oftálmicas e componentes de lentes oftálmicas. a divulgação também inclui um conjunto de critérios para selecionar combinações termoplásticas de núcleo e casca que exibem alta clareza óptica, difusão melhorada entre fios de filamentos, alta adesão entre fios e resistência melhorada da peça fabricada quando usada em um método de fabricação aditiva, como modelagem por depósito de material fundido.
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公开(公告)号：AT337157T
公开(公告)日：2006-09-15
申请号：AT02742927
申请日：2002-04-30
Applicant: ESSILOR INT
Inventor： CHIU HAO-WEN , YANG HSINJIN EDWIN
Abstract: Disclosed is an injection molding method. The method comprises injecting a melt of thermoplastic material at a temperature higher than the glass transition temperature (Tg) of the thermoplastic material in a molding cavity defined by a two-piece mold insert. The article is recovered after cooling and disassembling of the two piece mold insert. Each of the two pieces of the mold insert comprise at least one portion partly defining the mold cavity which is made of a material or combination of materials, other than glass, the thermal diffusivity alpha of which fulfills the condition: 1
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Patent Agency Ranking
公开(公告)号：CA3103550A1
公开(公告)日：2019-12-19
申请号：CA3103550
申请日：2019-06-11
Applicant: ESSILOR INT
Inventor： CHIU HAO-WEN , BALASUBRAMANIAN SRINIVASAN , JIANG PEIQI
Abstract: Disclosed are methods for preparing partially polarized optical articles. A polarizing element is used to cover at least a portion of the front surface of an optical article to form a polarizing zone and a non-polarizing zone on the optical article. The optical article is then tinted to produce a gradual color transition between the polarizing zone and non-polarizing zone of the optical article.
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公开(公告)号：BRPI0809918A2
公开(公告)日：2014-10-07
申请号：BRPI0809918
申请日：2008-03-25
Applicant: ESSILOR INT
Inventor： CHIU HAO-WEN , MAYR ROGER A , YEAN LEANIRITH
IPC: B29D11/00
Abstract: A method of forming thermoplastic polyurethane (TPU) into an optical lens. Suitable TPUs contain urethane (—NHCOO—) repeating units that are present in at least 23% by weight. This range of urethane weights is an indicator of a flexural modulus above 1,400 MPa. The TPUs have refractive indices above 1.54 and Abbe numbers above 27. They have glass transition temperatures above about 100 degrees C. The selected TPU can be injection molded to form ophthalmic lenses, that are well suited for use in rimless spectacles. The lenses are highly solvent resistant, while at the same time being readily tintable. The lenses made according the invention meet FDA 21 CFR 801.41 Impact Requirement, and ANSI Z87.1 high velocity impact (HVI) standard.
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公开(公告)号：DE60221280T2
公开(公告)日：2008-04-03
申请号：DE60221280
申请日：2002-12-17
Applicant: ESSILOR INT
Inventor： CHIU HAO-WEN , YANG HSINJIN , LOCKWOOD MATTHEW
IPC: B29C51/30 , B29D11/00 , B29C43/02 , B29C43/36 , B29C43/52 , B29C51/08 , B29C51/12 , B29C51/14 , B29C51/32 , B29C51/42 , B29L11/00
Abstract: The mold comprises two dies mounted in a sheath to slide along the axis of the sheath and each presenting a forming face facing the other. The two dies and the sheath are provided with intrinsic heat transfer means. A parison or preform of said thermoplastic material is placed between the two dies and the assembly is enclosed in the sheath; the dies and the sheath are heated by their intrinsic heat transfer means up to a forming temperature; The dies are moved towards each other to shape the material by plastic deformation until a predetermined relative position is reached corresponding to the thickness desired for the lens; the dies and the sheath are cooled by their intrinsic heat transfer means down to an unmolding temperature; and the finished lens is extracted from the mold.
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公开(公告)号：DE60221280D1
公开(公告)日：2007-08-30
申请号：DE60221280
申请日：2002-12-17
Applicant: ESSILOR INT
Inventor： CHIU HAO-WEN , YANG HSINJIN , LOCKWOOD MATTHEW
IPC: B29C51/30 , B29D11/00 , B29C43/02 , B29C43/36 , B29C43/52 , B29C51/08 , B29C51/12 , B29C51/14 , B29C51/32 , B29C51/42 , B29L11/00
Abstract: The mold comprises two dies mounted in a sheath to slide along the axis of the sheath and each presenting a forming face facing the other. The two dies and the sheath are provided with intrinsic heat transfer means. A parison or preform of said thermoplastic material is placed between the two dies and the assembly is enclosed in the sheath; the dies and the sheath are heated by their intrinsic heat transfer means up to a forming temperature; The dies are moved towards each other to shape the material by plastic deformation until a predetermined relative position is reached corresponding to the thickness desired for the lens; the dies and the sheath are cooled by their intrinsic heat transfer means down to an unmolding temperature; and the finished lens is extracted from the mold.
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公开(公告)号：AT367260T
公开(公告)日：2007-08-15
申请号：AT02804933
申请日：2002-12-17
Applicant: ESSILOR INT
Inventor： CHIU HAO-WEN , YANG HSINJIN , LOCKWOOD MATTHEW
IPC: B29C51/30 , B29D11/00 , B29C43/02 , B29C43/36 , B29C43/52 , B29C51/08 , B29C51/12 , B29C51/14 , B29C51/32 , B29C51/42 , B29L11/00
Abstract: The mold comprises two dies mounted in a sheath to slide along the axis of the sheath and each presenting a forming face facing the other. The two dies and the sheath are provided with intrinsic heat transfer means. A parison or preform of said thermoplastic material is placed between the two dies and the assembly is enclosed in the sheath; the dies and the sheath are heated by their intrinsic heat transfer means up to a forming temperature; The dies are moved towards each other to shape the material by plastic deformation until a predetermined relative position is reached corresponding to the thickness desired for the lens; the dies and the sheath are cooled by their intrinsic heat transfer means down to an unmolding temperature; and the finished lens is extracted from the mold.
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