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    • 22. 发明授权
    • Projection apparatus and light integration rod thereof
    • 投影仪及光整合杆
    • US07850315B2
    • 2010-12-14
    • US11874006
    • 2007-10-17
    • Jiunn-Lih LinHuang-Ming ChenPei-Ching LiuTzu-Kai WangChih-Hsien Tsai
    • Jiunn-Lih LinHuang-Ming ChenPei-Ching LiuTzu-Kai WangChih-Hsien Tsai
    • G03B21/28
    • G03B21/28
    • A light integration rod having a light input end and a light output end opposite to each other is provided. The light integration rod includes a first reflective plate, a second reflective plate, a third reflective plate and a fourth reflective plate. The second reflective plate is opposite to the first reflective plate. The third reflective plate and the fourth reflective plate connect the first reflective plate and the second reflective plate, and are disposed opposite to each other. A long side of the first reflective plate is not equal to a long side of the second reflective plate. A short side at the light output end of at least one of the first reflective plate and the second reflective plate is separate from a short side of the third reflective plate and a short side of the fourth reflective plate at the light output end.
    • 提供具有光输入端和彼此相对的光输出端的光集成杆。 光集成杆包括第一反射板,第二反射板,第三反射板和第四反射板。 第二反射板与第一反射板相对。 第三反射板和第四反射板连接第一反射板和第二反射板,并且彼此相对设置。 第一反射板的长边不等于第二反射板的长边。 第一反射板和第二反射板中的至少一个的光输出端的短边与光输出端的第三反射板的短边和第四反射板的短边分开。