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    • 1. 发明申请
    • Method and apparatus for forming an optical element and substrate and moulding tool
    • 用于形成光学元件和基板和成型工具的方法和装置
    • US20050249919A1
    • 2005-11-10
    • US11115415
    • 2005-04-27
    • Bernd WolfingEdgar PawlowskiUlrike StohrRalf Biertumpfel
    • Bernd WolfingEdgar PawlowskiUlrike StohrRalf Biertumpfel
    • G02B3/00B29C43/02B29D11/00C03B11/00C03B11/08G02B3/02G02B5/18B32B3/00
    • B29D11/00B29C43/021B29D11/00317B29D11/00365B29D11/00769B29L2011/0016C03B11/08C03B11/082C03B2215/41C03B2215/412C03B2215/65G02B5/18Y10S425/808Y10T428/24479
    • The invention relates to a process for forming an optical element. A forming tool is used having a plurality of molding or hot-embossing portions formed on a surface thereof for molding or hot-embossing optical structures onto a substrate. On the surface of the substrate there is formed at least one preformed portion. The substrate is heated to a temperature above a transition temperature and the forming tool and the substrate are pressed against each other for forming an optical element having a plurality of structures having an optical effect, wherein the shape of the structures having an optical effect is given by the respective associated molding or hot-embossing portion. According to the invention, when the forming tool and the substrate are pressed against each other, the respective preformed portion of the substrate first of all gets into contact to the associated molding or hot-embossing portion or to the forming tool at a central area so that a nip, which is formed between a surface of the respective preformed portion and a surface of the associated molding or hot-embossing portion or of said forming tool extends and broadens from said central area towards an edge of the respective preformed portion or of said substrate. According to the invention the substrate and said forming tool are provided with a substantially identical base so that the deformation ratio of the substrate is advantageously low.
    • 本发明涉及一种用于形成光学元件的方法。 使用形成工具,其具有形成在其表面上的多个模制或热压花部分,用于将光学结构模制或热压印到基底上。 在基板的表面上形成有至少一个预成型部分。 将基板加热到高于转变温度的温度,并且成形工具和基板彼此压靠以形成具有多个具有光学效果的结构的光学元件,其中给出具有光学效果的结构的形状 通过各自相关联的模制或热压花部分。 根据本发明,当成形工具和基板彼此挤压时,基板的各个预成形部分首先在中心区域与相关联的模制或热压花部分或成形工具接触,从而 形成在相应的预成型部分的表面与相关联的模制或热压花部分或所述成形工具的表面之间的辊隙从所述中心区域朝向相应的预成形部分或所述成形工具的边缘的边缘延伸并变宽 基质。 根据本发明,衬底和所述成形工具设置有基本相同的基部,使得衬底的变形率有利地较低。
    • 3. 发明授权
    • Method for forming an optical element
    • 光学元件的形成方法
    • US07611648B2
    • 2009-11-03
    • US11115415
    • 2005-04-27
    • Bernd WölfingEdgar PawlowskiUlrike StöhrRalf Biertümpfel
    • Bernd WölfingEdgar PawlowskiUlrike StöhrRalf Biertümpfel
    • B29D11/00
    • B29D11/00B29C43/021B29D11/00317B29D11/00365B29D11/00769B29L2011/0016C03B11/08C03B11/082C03B2215/41C03B2215/412C03B2215/65G02B5/18Y10S425/808Y10T428/24479
    • The invention relates to a process for forming an optical element. A forming tool is used having a plurality of molding or hot-embossing portions formed on a surface thereof for molding or hot-embossing optical structures onto a substrate. On the surface of the substrate there is formed at least one preformed portion. The substrate is heated to a temperature above a transition temperature and the forming tool and the substrate are pressed against each other for forming an optical element having a plurality of structures having an optical effect, wherein the shape of the structures having an optical effect is given by the respective associated molding or hot-embossing portion.According to the invention, when the forming tool and the substrate are pressed against each other, the respective preformed portion of the substrate first of all gets into contact to the associated molding or hot-embossing portion or to the forming tool at a central area so that a nip, which is formed between a surface of the respective preformed portion and a surface of the associated molding or hot-embossing portion or of said forming tool extends and broadens from said central area towards an edge of the respective preformed portion or of said substrate. According to the invention the substrate and said forming tool are provided with a substantially identical base so that the deformation ratio of the substrate is advantageously low.
    • 本发明涉及一种用于形成光学元件的方法。 使用形成工具,其具有形成在其表面上的多个模制或热压花部分,用于将光学结构模制或热压印到基底上。 在基板的表面上形成有至少一个预制部分。 将基板加热到高于转变温度的温度,并且成形工具和基板彼此压靠以形成具有多个具有光学效果的结构的光学元件,其中给出具有光学效果的结构的形状 通过各自相关联的模制或热压花部分。 根据本发明,当成形工具和基板彼此挤压时,基板的各个预成形部分首先在中心区域与相关联的模制或热压花部分或成形工具接触,从而 形成在相应的预成型部分的表面与相关联的模制或热压花部分或所述成形工具的表面之间的辊隙从所述中心区域朝向相应的预成形部分或所述成形工具的边缘的边缘延伸并变宽 基质。 根据本发明,衬底和所述成形工具设置有基本相同的基部,使得衬底的变形率有利地较低。
    • 7. 发明申请
    • Compact lens for digital image acquisition and image acquisition device
    • 用于数字图像采集的紧凑型镜头和图像采集装置
    • US20070153387A1
    • 2007-07-05
    • US11486384
    • 2006-07-14
    • Edgar PawlowskiMatthias BrinkmannWolfram Beier
    • Edgar PawlowskiMatthias BrinkmannWolfram Beier
    • G02B27/44
    • G02B13/006G02B5/1814G02B9/10G02B9/12G02B13/0015G02B13/003G02B13/0045G02B13/0055G02B13/009G02B15/00G02B15/14G02B27/0037G02B27/4211G02B27/4277
    • The invention relates to a compact lens with fixed or variable focal length for digital image acquisition. According to the invention, a refractive optical element of the lens or a group of elements on a light entry side of the lens is provided as a compound lens having a first lens element from a glass or optical ceramics with a first index of refraction and a second lens element from a plastic with a second index of refraction which is smaller than the first index of refraction, the first lens element being located on the beam path in front of the second lens element and on a light entry side of the lens. The lens also comprises at least one diffractive optical element. With a compactly built lens, imaging errors can thus be minimized by simple means. The diffractive optical element directly on or at a transparent cover is preferably made or provided for covering the detector array. Another aspect of the invention relates to a digital image acquisition device with such a lens.
    • 本发明涉及一种用于数字图像采集的具有固定或可变焦距的紧凑型透镜。 根据本发明,透镜的折射光学元件或透镜入射侧的一组元件被设置为具有第一透镜元件的复合透镜,该透镜元件具有第一折射率的玻璃或光学陶瓷, 所述第二透镜元件具有比所述第一折射率小的第二折射率的塑料,所述第一透镜元件位于所述第二透镜元件前方的光束路径上以及所述透镜的光入射侧。 透镜还包括至少一个衍射光学元件。 使用紧凑的镜头,因此可以通过简单的手段使成像误差最小化。 直接在透明盖上或透明盖上的衍射光学元件优选地制成或提供用于覆盖检测器阵列。 本发明的另一方面涉及具有这种透镜的数字图像采集装置。