Optical lens device
    1.
    发明授权

    公开(公告)号:US09753245B2

    公开(公告)日:2017-09-05

    申请号:US14904012

    申请日:2014-06-26

    CPC classification number: G02B7/028 G02B7/025 G02B9/10 G02B13/003 G02B19/0014

    Abstract: An optical lens device forms a condenser lens having a first lens of a positive focal length and a second lens of a negative focal length. The first and second lenses are stacked with their optical axis aligned. The first lens has a lens section, edge section and glass member having a linear expansion coefficient smaller than that of the lens section and the edge section to suppress shape change of the first lens due to temperature change of the first lens. The second lens, which is stacked with the first lens, is used for offsetting a change of the positive focal length generated in the first lens when the temperature varies. The glass member having a small linear expansion coefficient suppresses that shape change of the first lens which is not compensated by the second lens.

    OPTICAL LENS DEVICE
    4.
    发明申请
    OPTICAL LENS DEVICE 有权
    光学镜头设备

    公开(公告)号:US20160154201A1

    公开(公告)日:2016-06-02

    申请号:US14904012

    申请日:2014-06-26

    CPC classification number: G02B7/028 G02B7/025 G02B9/10 G02B13/003 G02B19/0014

    Abstract: An optical lens device forms a condenser lens having a first lens of a positive focal length and a second lens of a negative focal length. The first and second lenses are stacked with their optical axis aligned. The first lens has a lens section, edge section and glass member having a linear expansion coefficient smaller than that of the lens section and the edge section to suppress shape change of the first lens due to temperature change of the first lens. The second lens, which is stacked with the first lens, is used for offsetting a change of the positive focal length generated in the first lens when the temperature varies. The glass member having a small linear expansion coefficient suppresses that shape change of the first lens which is not compensated by the second lens.

    Abstract translation: 光学透镜装置形成具有正焦距的第一透镜和负焦距的第二透镜的聚光透镜。 第一透镜和第二透镜以它们的光轴对准的方式堆叠。 第一透镜具有透镜部分,边缘部分和具有比透镜部分的线膨胀系数小的透镜部分和边缘部分的玻璃部件,以抑制由于第一透镜的温度变化引起的第一透镜的形状变化。 与第一透镜堆叠的第二透镜用于抵消当温度变化时在第一透镜中产生的正焦距的变化。 具有小线性膨胀系数的玻璃构件抑制未被第二透镜补偿的第一透镜的形状变化。

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