发明授权
US5756013A Method of molding a synthetic resin layered lens for a vehicle headlight
失效
用于车辆前照灯的合成树脂分层透镜的成型方法
- 专利标题： Method of molding a synthetic resin layered lens for a vehicle headlight
- 专利标题（中）： 用于车辆前照灯的合成树脂分层透镜的成型方法
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申请号： US442501申请日： 1995-05-16
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公开(公告)号： US5756013A公开(公告)日： 1998-05-26
- 发明人: Hirokazu Yanagihara , Shiro Takezawa
- 申请人： Hirokazu Yanagihara , Shiro Takezawa
- 申请人地址： JPX Tokyo
- 专利权人： Koito Manufacturing Co., Ltd.
- 当前专利权人： Koito Manufacturing Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 主分类号： B29C45/14
- IPC分类号： B29C45/14 ; B29C45/16 ; B29C45/26 ; B29D11/00 ; B29L9/00 ; B29L11/00 ; B29L31/30 ; F21S8/10 ; F21V5/00 ; F21V5/04
摘要：
A synthetic resin layered lens for a vehicle lighting device in which an upper lens layer is disposed on a lower lens layer thereby forming a layered lens of integral construction. The lower lens layer is molded in a state that the surface of the lower lens layer where it contacts the upper lens layer, faces the injection gate. The gate scar of the lower layer is thus hidden by the upper layer.
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