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    • 9. 发明授权
    • Projection lens unit for pico-projector
    • 微型投影机投影镜头单元
    • US08284493B2
    • 2012-10-09
    • US12748676
    • 2010-03-29
    • Hee-Joong LeeYoung-Hun LeeSung-Hoon HwangSeung-Ki Hong
    • Hee-Joong LeeYoung-Hun LeeSung-Hoon HwangSeung-Ki Hong
    • G02B9/62G02B3/02
    • G02B13/16G02B13/0045G02B13/006
    • There is provided a projection lens unit for a pico-projector which comprises a lens array, a color composition prism, a cover glass and an image panel, the projection lens unit characterized in that: the lens array includes 1st to 6th lenses sequentially arrayed from a screen on which an image is projected, the 1st lens includes a stop side formed on a 1st side of the 1st lens, the stop side stops the passage of light, to perform the function of a diaphragm aperture, light passing from the 1st lens to the 6th lens travels in only one direction of the lens sides based on the diaphragm aperture, and parts of the lens sides through which the light does not pass are cut so that the whole height of the lens array is reduced.
    • 提供了一种用于微型投影仪的投影透镜单元,其包括透镜阵列,彩色合成棱镜,盖玻璃和图像面板,其中,所述投影透镜单元的特征在于,所述透镜阵列包括从第一至第六透镜顺序排列的透镜阵列 投影图像的屏幕,第一透镜包括形成在第一透镜的第一侧上的停止侧,停止侧停止光的通过,执行光圈孔的功能,从第一透镜通过的光 到第六透镜基于光阑孔径仅在透镜侧的一个方向上行进,并且切割光不通过的透镜侧的部分,从而减小透镜阵列的整个高度。