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    • 1. 发明授权
    • Fixed-focus lens
    • 定焦镜头
    • US07466501B1
    • 2008-12-16
    • US12015370
    • 2008-01-16
    • Yi-Hao KangTao-Hung Kuo
    • Yi-Hao KangTao-Hung Kuo
    • G02B9/12G02B3/00
    • G02B9/12G02B13/16
    • A fixed-focus lens including a first lens group, a second lens group, and a third lens group arranged from an object side to an image side in sequence is provided. The first lens group has a negative refractive power, and includes at least one aspheric lens. The second lens group has a positive refractive power, and includes a lens. The third lens group has a positive refractive power, and includes a triple cemented lens. An effective focal length (EFL) of the fixed-focus lens is f. An EFL of the first lens group is f1. An EFL of the second lens group is f2. An EFL of the third lens group is f3. An axial distance between the first lens group and the second lens group is d. The fixed-focus lens satisfies: 2.5
    • 提供了包括从对象侧到图像侧依次配置的第一透镜组,第二透镜组和第三透镜组的固定对焦透镜。 第一透镜组具有负屈光力,并且包括至少一个非球面透镜。 第二透镜组具有正折光力,并且包括透镜。 第三透镜组具有正屈光力,并且包括三重胶合透镜。 固定焦距透镜的有效焦距(EFL)为f。 第一透镜组的EFL为f1。 第二透镜组的EFL为f2。 第三透镜组的EFL为f3。 第一透镜组和第二透镜组之间的轴向距离为d。 固定焦距透镜满足:2.5 <| f1 / f | <4.5,7.5
    • 3. 发明授权
    • Projection apparatus
    • 投影仪
    • US09028073B2
    • 2015-05-12
    • US13425421
    • 2012-03-21
    • Chuan-Te ChengTao-Hung Kuo
    • Chuan-Te ChengTao-Hung Kuo
    • G03B21/18G03B21/16G03B21/00
    • G03B21/16G03B21/008
    • A projection apparatus includes an optical engine base, a light source, a light valve, a lens module, and a fan. The light source is disposed at the optical engine base for emitting an illumination beam. The light valve is disposed at the optical engine base for converting the illumination beam into an image beam. The lens module is disposed at the optical engine base and includes a lens barrel and a lens assembly disposed in the lens barrel for converting the image beam into a projection beam. The fan is disposed at the optical engine base, and adjacent to the lens module. The fan is used for providing an air flow to cool the lens module.
    • 投影装置包括光学引擎基座,光源,光阀,透镜模块和风扇。 光源设置在用于发射照明光束的光学引擎基座处。 光阀设置在光学引擎基座处,用于将照明光束转换为图像光束。 透镜模块设置在光学发动机基座处,并且包括透镜镜筒和设置在透镜镜筒中的用于将图像束转换成投影光束的透镜组件。 风扇设置在光学发动机基座处,并且与透镜模块相邻。 风扇用于提供空气流以冷却透镜模块。
    • 4. 发明申请
    • PROJECING LENS AND OPTICAL ENGINE
    • 投影镜头和光学发动机
    • US20140092483A1
    • 2014-04-03
    • US14038755
    • 2013-09-27
    • Tao-Hung Kuo
    • Tao-Hung Kuo
    • G02B13/18
    • G02B13/18G02B13/16
    • A projection lens disposed between an enlarged side and a reduced side is provided. The projection lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, which are sequentially arranged from the enlarged side to the reduced side. Refractive powers of the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are respectively negative, positive, positive, negative, positive and positive. A focal length of the third lens is greater than or equal to 20 mm and is less than or equal to 200 mm. An optical engine is also provided.
    • 设置在放大侧和缩小侧的投影透镜。 投影透镜包括从放大侧依次排列到缩小侧的第一透镜,第二透镜,第三透镜​​,第四透镜,第五透镜和第六透镜。 第一透镜,第二透镜,第三透镜​​,第四透镜,第五透镜和第六透镜的折射率分别为负,正,正,负,正和正。 第三透镜的焦距大于或等于20mm并且小于或等于200mm。 还提供了一种光学引擎。
    • 5. 发明授权
    • Projection lens and optical engine
    • 投影镜头和光学引擎
    • US09013798B2
    • 2015-04-21
    • US14038755
    • 2013-09-27
    • Tao-Hung Kuo
    • Tao-Hung Kuo
    • G02B13/18G02B13/16
    • G02B13/18G02B13/16
    • A projection lens disposed between an enlarged side and a reduced side is provided. The projection lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, which are sequentially arranged from the enlarged side to the reduced side. Refractive powers of the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are respectively negative, positive, positive, negative, positive and positive. A focal length of the third lens is greater than or equal to 20 mm and is less than or equal to 200 mm. An optical engine is also provided.
    • 设置在放大侧和缩小侧的投影透镜。 投影透镜包括从放大侧依次排列到缩小侧的第一透镜,第二透镜,第三透镜​​,第四透镜,第五透镜和第六透镜。 第一透镜,第二透镜,第三透镜​​,第四透镜,第五透镜和第六透镜的折射率分别为负,正,正,负,正和正。 第三透镜的焦距大于或等于20mm并且小于或等于200mm。 还提供了一种光学引擎。