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    • 9. 发明授权
    • Pointer instrument for automotive meter
    • 汽车仪表指针仪表
    • US07379182B2
    • 2008-05-27
    • US11636684
    • 2006-12-08
    • Jae Sun Han
    • Jae Sun Han
    • G01J4/00
    • G01P1/11G01D11/28G01D13/26G01D13/265G01P1/07
    • A character shielding-preventive pointer instrument for automotive gauges includes a polarizer film having permeability or non-permeability characteristics selectively depending on whether power is supplied thereto. The polarizer film is attached on a lower surface of a front end portion of a pointer needle positioned just above characters of a character plate. Whether or not power is supplied to the polarizer film is controlled depending on the current position of the pointer needle by a micro computer such that the polarizer film is permeable to light when the pointer needle is located above a character of the character plate so that light emitted from the character plate passes through the pointer needle through the polarizer film to prevent the pointer needle from shielding the character.
    • 用于汽车仪表的字符屏蔽预防性指示器包括根据是否向其提供电力而选择性地具有渗透性或非磁导特性的偏振片。 偏光膜安装在位于字符板正上方的指针针的前端部分的下表面上。 根据微型计算机的指针针的当前位置来控制供电到偏光膜的功率,使得当指针针位于字符板的字符之上时偏光膜可透光,使得光 从字符板发射通过指针针穿过偏光膜,防止指针针屏蔽字符。