[특허]Method and apparatus for producing a structure, molding tool

Method and apparatus for producing a structure, molding tool 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B28B-007/06 B29D-011/00 B29C-037/00 B29C-033/40 B29C-035/08
출원번호	US-0314904 (2011-12-08)
등록번호	US-8945458 (2015-02-03)
우선권정보	DE-10 2009 055 080 (2009-12-21)
발명자 / 주소	Wippermann, Frank Duparre, Jacques Dannberg, Peter Braeuer, Andreas
출원인 / 주소	Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
대리인 / 주소	Perkins Coie LLP
인용정보	피인용 횟수 : 0 인용 특허 : 27

초록 ▼

A method of producing a structure from curable material by molding includes arranging a molding tool above a surface, so that in a region between the molding tool and the surface, the curable material adjoins the surface and a molding face of the molding tool which faces the surface, and so that additional curable material may continue to flow into the region. The method further includes irradiating the curable material in the region in a locally varying manner, so that the curable material cures at different speeds in a laterally varying manner and that shrinkages occurring during curing of the curable material are compensated for by the additional curable material. The method further includes applying a constant pressure to the additional curable material. Moreover, a second method and an apparatus for producing a structure from curable material by molding and a molding tool for an optical component are described.

대표청구항 ▼

1. A method of producing a structure from curable material by molding, the method comprising: arranging a molding tool for an optical component, comprising: a molding face comprising a surface region for defining an optically relevant surface of the optical component, the molding tool being transparent to irradiation from a side which faces away from the molding face; anda membrane layer arranged on the molding face, said membrane layer loosely abutting the molding face in a channel region of the molding face which is laterally adjacent to the surface region, being expandable and being connected, around the channel region, to the molding face in a fluid-tight manner, so that an expandable channel is formed between the molding face and the inner surface of the membrane layer,so that the molding faces the surface with not-yet cured curable material being located between the molding face and the surface and so that not the surface is distanced from the channel region with the not-yet cured curable material located between the surface and the expandable channel;irradiating the curable material in the surface region in a locally varying manner, so that the not-yet cured curable material cures at different speeds in a laterally varying manner, andduring the irradiation, applying a pressure within the expandable channel of the molding tool so as to expand the expandable channel and cause a flow of the not-yet cured curable material into the surface region such that shrinkages occurring during curing of the not-yet cured curable material in the surface region are compensated for by the not-yet cured curable material. 2. The method as claimed in claim 1, wherein said locally varying irradiation is performed, through the molding tool, from a side of the molding tool which faces away from the molding face. 3. The method as claimed in claim 1, wherein the local variation of the irradiation is performed by a displacement of two apertures comprising locally varying transparencies and/or by a gray filter comprising electrically and/or mechanically adjustable variable transparency. 4. The method as claimed in claim 1, wherein the locally varying irradiation is performed at least partly through a structure for beam diffusion. 5. The method as claimed in claim 1, said method comprising producing a plurality of structures; andthe local variation of the irradiation being performed by shifting two aperture fields comprising fixed individual apertures, a distance of the individual apertures corresponding to the distance of the structures to be produced. 6. The method according to claim 1, wherein the molding tool comprises a plurality of surface regions for defining an optically relevant surface of a plurality of optical components, wherein the membrane layer is formed so that the expandable channel extends laterally adjacent the plurality of surface regions or, for each of the plurality of surface regions, a separate expandable channel is provided laterally adjacent to the respective surface region.

이 특허에 인용된 특허 (27)

Clark ; James A. ; Livesey ; Donald V. ; Wrue ; Richard J., Apparatus for forming optical lenses.
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Schultheis Bernd,DEX ; Busch Dietrich,DEX ; Heisner Thomas,DEX ; Scheidler Herwig,DEX, Article made of brittle material encapsulated in an injection-molded plastic holding frame.
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Crowe ; Jr. Carl ; Lust Victor ; Pegram Stephen C. ; Phillips Robert ; Rastogi Sanjay ; Renkema Kornelis ; Walker Craig W., Basecurve mold designs to maintain HEMA ring/basecurve adhesion.
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Lang, Eric J.; Rydin, Richard W., Channel assisted resin transfer molding.
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Andino,Rafael Victor; Tapale,Mayuresh Shashikant; Brooks,Christopher John; Stoeckman,Walter Ray; VanRoyen,Donald Fraser, Contact lens mold.
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Hamilton Ronald S. (Winchester GB2) Seden William E. (Fareham GB2), Contact lens mould.
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Soane David S. (Piedmont CA), Controlled casting of a shrinkable material.
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Kinoshita, Kazuo, Fluid operated lens-position controller and imaging module.
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Amanai, Takahiro, Image pickup lens unit and image pickup device.
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Bakalar Jerome (Lauderhill FL), Injection molding equipment and method.
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Andrew Paul Morris GB, Lens mould.
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Arai Takashi (Tokyo JPX), Method for producing optical device.
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Cook William H. (Fairport NY) Deichert William G. (Macedon NY) Wrue Richard J. (Rochester NY) Westfall Norman R. (Penfield NY), Method of making articles of dissimilar polymer compositions.
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Fumio Miyajima JP, Method of manufacturing semiconductor devices and resin molding machine.
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Lissotshenko, Vitaly; Hentze, Joachim, Microsystem module.
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Yuki Tanaka JP; Chikai Kosaka JP, Mold assembly for forming ophthalmic lens or lens blank and method of producing the same using the mold assembly.
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Ansell,Scott Frederick; Windey,Jan Albert Maria; Foley, Jr.,Kenneth W.; Krebsbach,Gerald Robert; Smith,Robert MacDonald; Crowe, Jr.,Carl G., Mold for forming a contact lens and method of preventing formation of small strands of contact lens material during contact lens manufacture.
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Scott Frederick Ansell ; Jan Albert Maria Windey BE; Kenneth W. Foley, Jr. ; Gerald Robert Krebsbach ; Robert MacDonald Smith ; Carl G. Crowe, Jr., Mold for forming a contact lens and method of preventing formation of small strands of contact lens material during contact lens manufacture.
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Maekawa, Masanori; Takahashi, Tomokazu, Molding die set and resin molding apparatus having the same.
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Dubey, Dharmesh K.; Song, Xu; Schlagel, Mark E., Molds for use in contact lens production.
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Nakano, Ikuo, Object lens barrel, object lens barrel drive unit and optical information recording and reproducing unit.
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Sudo Ryoichi (Yokosuka JPX) Miwa Hiroaki (Fujisawa JPX) Tajima Tetsuo (Fujisawa JPX), Optical disc base plate and process for producing the same.
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Broeksema Egbert (Eindhoven NLX) Smeets Arnoldus A. (Eindhoven NLX), Optically readable information disk and method of manufacturing same.
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Wang Kuo K. ; Han Sejin, Pressurized underfill encapsulation of integrated circuits.
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Hagmann, Peter; Borghorst, Sharla; Golby, John; Herbrechtsmeier, Peter; Kretzschmar, Otto; Seiferling, Bernhard; Söllner, Norbert; Müller, Beat, Process for the manufacture of mouldings.
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Jalink ; Jr. Antony (Newport News VA) Campbell Scott R. (Sanford FL), Thermal compensating mount.
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Shimomura Akihiko (Yokohama JPX) Murai Keiichi (Yokohama JPX) Toganoh Shigeo (Tokyo JPX), Transfer-molding resin composition for use to manufacture ink jet recording head, and ink jet recording head manufacture.
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Method and apparatus for producing a structure, molding tool 원문보기

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