하이브리드 렌즈 및 이를 구비하는 투사 광학계
    1.
    发明公开
    하이브리드 렌즈 및 이를 구비하는 투사 광학계 失效
    混合镜片和使用它的投影光学系统

    公开(公告)号:KR1020040025519A

    公开(公告)日:2004-03-24

    申请号:KR1020030007116

    申请日:2003-02-05

    CPC classification number: G02B13/18

    Abstract: PURPOSE: A hybrid lens and a projective optic system using the same are provided to obtain picture quality of high contrast ratio and high resolution by correcting an aberration. CONSTITUTION: A hybrid lens includes a spherical lens(33) and a plurality of aspherical lenses(35a,35b). The aspherical lenses(35a,35b) are formed on one or more sides of the spherical lens(33). The aspherical lenses(35a,35b) are formed with plastic materials. The aspherical lenses(35a,35b) are formed on an input side and an output side of the spherical lens(33). The spherical lens(33) is formed with glass. The spherical lens(33) has a refractive index of 1.45 to 1.95. The plastic materials have reflective indexes of 1.45 to 1.8.

    Abstract translation: 目的:提供混合透镜和使用其的投影光学系统,以通过校正像差来获得高对比度和高分辨率的图像质量。 构成:混合透镜包括球面透镜(33)和多个非球面透镜(35a,35b)。 非球面透镜(35a,35b)形成在球面透镜(33)的一侧或多侧上。 非球面透镜(35a,35b)由塑料材料形成。 非球面透镜(35a,35b)形成在球面透镜(33)的输入侧和输出侧。 球面透镜(33)由玻璃形成。 球面透镜(33)的折射率为1.45〜1.95。 塑料材料的反射指数为1.45〜1.8。

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