专利名称:Method for creating a three dimensional
freeform surface with haptically and/or
周婧optically obrvable microstructures
发明人:SAUERESSIG, KILIAN
申请号:EP07007707.8
申请日:20070416
公开号:EP1852239A2
公开日:
gender
布鲁斯 詹纳20071107保送生需要什么条件
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envoy专利附图:
摘要:A virtual- or real elastic sheet (10) is prepared. Regions of expansion and
compression or buckling which are to be formed in it, are determined. The data t is
modified to at least partially compensate the expansions and compressions. The elastic sheet, structured using the modified data t, is examined for microstructural distortions. The foregoing process is repeated iteratively on the same sheet, until a final data t is obtained. The sheet is structured so that at least one structure-carrying surface is produced on it. The final data t is converted into a vector data model for the free-form surface. The rear of the sheet is given a three-dimensional macrostructure which corresponds with the expansion profile. The final data t contains half-tone data. Edges of the sheet are weakened to accept expansions. The sheet is stretched out on a mold, so that the structured surface faces it. A pressure difference formed between the structured surface and the rear surface, press the sheet towards the mold. A lubricant comprising air or oil is introduced between sheet and mold. One or more sliding cushions are produced between them. One or two of the sliding cushions are activated and deactivated. The lubricant is a fluid which can be hardened after stressing is relaxed. The fluid contains parting agent.
It contains ceramic pigments and/or electrically-conducting material. Additional steps include casting behind the sheet, and removing the resulting molding and sheet from the mold.
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申请人:K1 GMBHjaggad
地址:Nork 123 48691 Vreden-Lünten DE
国籍:DE
代理机构:Tönhardt, Marion
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