公开(公告)号：US08228611B2

公开(公告)日：2012-07-24

申请号：US12940467

申请日：2010-11-05

申请人： Yi-Tien Lu ,  Yu-Tsung Lee

发明人： Yi-Tien Lu ,  Yu-Tsung Lee

IPC分类号： G02B9/00 ,  G02B9/60

CPC分类号： G02B13/0035

摘要： A lens module has a magnified side and a reduced side having an imaging surface. The lens module includes a first, a second, and a third lens groups having positive refractive powers respectively. The first lens group includes a first and a second lenses. A value calculated by dividing a distance between a center of a surface of the first lens facing the magnified side and the imaging surface by the effective focal length of the lens module is greater than or equal to 1 and smaller than or equal to 3. The second lens group located between the first lens group and the reduced side includes a third and a fourth lenses. The third lens group located between the second lens group and the reduced side includes a fifth lens. Refractive powers of the first to the fifth lenses are negative, positive, positive, negative and positive, respectively.

摘要翻译： 透镜模块具有放大侧和具有成像表面的缩小侧。 透镜模块包括分别具有正折射力的第一透镜组，第二透镜组和第三透镜组。 第一透镜组包括第一和第二透镜。 通过将第一透镜的面对放大侧的表面的中心与成像面之间的距离除以透镜模块的有效焦距而计算出的值为大于等于1且小于等于3。 位于第一透镜组和缩小侧之间的第二透镜组包括第三透镜和第四透镜。 位于第二透镜组和缩小侧之间的第三透镜组包括第五透镜。 第一至第五透镜的折射率分别为负，正，正，负和正。

公开(公告)号：US20110128636A1

公开(公告)日：2011-06-02

申请号：US12910316

申请日：2010-10-22

申请人： Yi-Tien LU ,  Jung-Yao Chen ,  Yu-Tsung Lee

发明人： Yi-Tien LU ,  Jung-Yao Chen ,  Yu-Tsung Lee

IPC分类号： G02B13/18

CPC分类号： G02B13/004 ,  G02B13/22

摘要： A projection lens includes a first lens group, a second lens group, and a third lens group. The first lens group is composed of a first lens. The first lens has a concave surface and a convex surface, and the concave surface of the first lens faces a reducing side of the projection lens. The second lens group has positive refractive power, and includes a second lens having positive refractive power and a third lens having negative refractive power. The second lens is a biconvex lens, and the third lens has a concave lens facing the reducing side. The third lens group is composed of a fourth lens, and the fourth lens has a convex surface facing a magnifying side of the projection lens. The first lens group, the second lens group, and the third lens group include at least two aspheric lenses.

摘要翻译： 投影透镜包括第一透镜组，第二透镜组和第三透镜组。 第一透镜组由第一透镜组成。 第一透镜具有凹面和凸面，第一透镜的凹面朝向投影透镜的折射面。 第二透镜组具有正折光力，并且包括具有正折光力的第二透镜和具有负屈光力的第三透镜。 第二透镜是双凸透镜，第三透镜​​具有面向还原侧的凹透镜。 第三透镜组由第四透镜组成，第四透镜具有面向投影透镜的放大侧的凸面。 第一透镜组，第二透镜组和第三透镜组包括至少两个非球面透镜。

公开(公告)号：US08363327B2

公开(公告)日：2013-01-29

申请号：US12910316

申请日：2010-10-22

申请人： Yi-Tien Lu ,  Jung-Yao Chen ,  Yu-Tsung Lee

发明人： Yi-Tien Lu ,  Jung-Yao Chen ,  Yu-Tsung Lee

IPC分类号： G02B9/00 ,  G02B13/18

CPC分类号： G02B13/004 ,  G02B13/22

摘要： A projection lens includes a first lens group, a second lens group, and a third lens group. The first lens group is composed of a first lens. The first lens has a concave surface and a convex surface, and the concave surface of the first lens faces a reducing side of the projection lens. The second lens group has positive refractive power, and includes a second lens having positive refractive power and a third lens having negative refractive power. The second lens is a biconvex lens, and the third lens has a concave lens facing the reducing side. The third lens group is composed of a fourth lens, and the fourth lens has a convex surface facing a magnifying side of the projection lens. The first lens group, the second lens group, and the third lens group include at least two aspheric lenses.

摘要翻译： 投影透镜包括第一透镜组，第二透镜组和第三透镜组。 第一透镜组由第一透镜组成。 第一透镜具有凹面和凸面，第一透镜的凹面朝向投影透镜的折射面。 第二透镜组具有正折光力，并且包括具有正折光力的第二透镜和具有负屈光力的第三透镜。 第二透镜是双凸透镜，第三透镜​​具有面向还原侧的凹透镜。 第三透镜组由第四透镜组成，第四透镜具有面向投影透镜的放大侧的凸面。 第一透镜组，第二透镜组和第三透镜组包括至少两个非球面透镜。

公开(公告)号：US07911716B1

公开(公告)日：2011-03-22

申请号：US12780189

申请日：2010-05-14

申请人： Yi-Tien Lu ,  Yu-Tsung Lee

发明人： Yi-Tien Lu ,  Yu-Tsung Lee

IPC分类号： G02B9/14 ,  G02B9/00

CPC分类号： G02B9/14

摘要： A lens module including a first lens group, a second lens group, a third lens group, and an aperture stop is provided. The first lens group disposed between a magnified side and a reduced side has a positive refractive power. The second lens group disposed between the first lens group and the reduced side has a negative refractive power. The third lens group disposed between the second lens group and the reduced side has a positive refractive power. The aperture stop is disposed between the first lens group and the second lens group. Additionally, the distance from a center of the second surface to a center of the third surface is L1, an effective focal length is f, and the lens module satisfies 0.4

摘要翻译： 提供了包括第一透镜组，第二透镜组，第三透镜​​组和孔径光阑的透镜模块。 设置在放大侧和缩小侧的第一透镜组具有正的折射光焦度。 设置在第一透镜组和缩小侧之间的第二透镜组具有负折光力。 设置在第二透镜组和缩小侧之间的第三透镜组具有正的折光力。 孔径光阑设置在第一透镜组和第二透镜组之间。 此外，从第二表面的中心到第三表面的中心的距离为L1，有效焦距为f，透镜模块满足0.4

公开(公告)号：US07859763B2

公开(公告)日：2010-12-28

申请号：US12705288

申请日：2010-02-12

申请人： Yi-Tien Lu ,  Chien-Hsiung Tseng

发明人： Yi-Tien Lu ,  Chien-Hsiung Tseng

IPC分类号： G02B9/00 ,  G02B9/12

CPC分类号： G02B13/16 ,  G02B13/22

摘要： A fixed-focus lens includes a first, a second, and a third lens groups arranged in sequence from the enlarged side to the reduced side and having positive refractive powers. The first lens group includes a first, a second, and a third lenses from the enlarged side to the reduced side. The second lens group includes a fourth, a fifth, and a sixth lenses from the enlarged side to the reduced side. The third lens group includes a seventh lens. The lens of the first lens group closest to the enlarged side in the fixed-focus lens has a concave surface. The distance between the lens surface of the second lens group closest to the reduced side and the lens surface of the third lens group closest to the enlarged side is L1. The overall length of the fixed-focus lens is L. The fixed-focus lens satisfies 0.1

摘要翻译： 固定焦点透镜包括从放大侧到缩小侧依次排列并具有正折射力的第一透镜组，第二透镜组和第三透镜组。 第一透镜组包括从放大侧到缩小侧的第一透镜，第二透镜和第三透镜。 第二透镜组包括从放大侧到缩小侧的第四透镜，第五透镜和第六透镜。 第三透镜组包括第七透镜。 最靠近固定焦点透镜中的放大侧的第一透镜组的透镜具有凹面。 最靠近缩小侧的第二透镜组的透镜表面与最靠近放大侧的第三透镜组的透镜表面之间的距离为L1。 固定焦点透镜的整体长度为L.定焦透镜满足0.1

公开(公告)号：US07405885B2

公开(公告)日：2008-07-29

申请号：US11833700

申请日：2007-08-03

申请人： Yi-Hao Kang ,  Yi-Tien Lu

发明人： Yi-Hao Kang ,  Yi-Tien Lu

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens includes a first lens group with a negative refractive power and a second lens group with a positive refractive power. The first lens group includes a first lens, a second lens, a third lens and a fourth lens arranged in sequence and refractive powers thereof are negative, negative, negative and positive respectively. The first and second lenses are meniscus lenses and two surfaces of the second lens are aspheric surfaces. The third lens is a biconcave lens and the fourth lens is a biconvex lens. The second lens group includes a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens arranged in sequence and refractive powers thereof are positive, positive, positive, negative and positive respectively. A cemented doublet lens is composed of the seventh and eighth lenses. The ninth lens is a biconvex lens.

摘要翻译： 变焦透镜包括具有负折光力的第一透镜组和具有正折光力的第二透镜组。 第一透镜组包括依次布置的第一透镜，第二透镜，第三透镜​​和第四透镜，其折射率分别为负，负，负和正。 第一透镜和第二透镜是弯月透镜，第二透镜的两个表面是非球面。 第三透镜是双凹透镜，第四透镜是双凸透镜。 第二透镜组包括依次布置的第五透镜，第六透镜，第七透镜，第八透镜和第九透镜，其折射率分别为正，正，正，负。 胶合双头透镜由第七和第八透镜组成。 第九个镜头是双凸透镜。

公开(公告)号：US20080106801A1

公开(公告)日：2008-05-08

申请号：US11833700

申请日：2007-08-03

申请人： Yi-Hao Kang ,  Yi-Tien Lu

发明人： Yi-Hao Kang ,  Yi-Tien Lu

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens includes a first lens group with a negative refractive power and a second lens group with a positive refractive power. The first lens group includes a first lens, a second lens, a third lens and a fourth lens arranged in sequence and refractive powers thereof are negative, negative, negative and positive respectively. The first and second lenses are meniscus lenses and two surfaces of the second lens are aspheric surfaces. The third lens is a biconcave lens and the fourth lens is a biconvex lens. The second lens group includes a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens arranged in sequence and refractive powers thereof are positive, positive, positive, negative and positive respectively. A cemented doublet lens is composed of the seventh and eighth lenses. The ninth lens is a biconvex lens.

摘要翻译： 变焦透镜包括具有负折光力的第一透镜组和具有正折光力的第二透镜组。 第一透镜组包括依次排列的第一透镜，第二透镜，第三透镜​​和第四透镜，其折射率分别为负，负，负和正。 第一透镜和第二透镜是弯月透镜，第二透镜的两个表面是非球面。 第三透镜是双凹透镜，第四透镜是双凸透镜。 第二透镜组包括依次布置的第五透镜，第六透镜，第七透镜，第八透镜和第九透镜，其折射率分别为正，正，正，负。 胶合双头透镜由第七和第八透镜组成。 第九个镜头是双凸透镜。

公开(公告)号：US20100259839A1

公开(公告)日：2010-10-14

申请号：US12705288

申请日：2010-02-12

申请人： Yi-Tien Lu ,  Chien-Hsiung Tseng

发明人： Yi-Tien Lu ,  Chien-Hsiung Tseng

IPC分类号： G02B17/00 ,  G02B9/12

CPC分类号： G02B13/16 ,  G02B13/22

摘要： A fixed-focus lens includes a first, a second, and a third lens groups arranged in sequence from the enlarged side to the reduced side and having positive refractive powers. The first lens group includes a first, a second, and a third lenses from the enlarged side to the reduced side. The second lens group includes a fourth, a fifth, and a sixth lenses from the enlarged side to the reduced side. The third lens group includes a seventh lens. The lens of the first lens group closest to the enlarged side in the fixed-focus lens has a concave surface. The distance between the lens surface of the second lens group closest to the reduced side and the lens surface of the third lens group closest to the enlarged side is L1. The overall length of the fixed-focus lens is L. The fixed-focus lens satisfies 0.1

摘要翻译： 固定焦点透镜包括从放大侧到缩小侧依次排列并具有正折射力的第一透镜组，第二透镜组和第三透镜组。 第一透镜组包括从放大侧到缩小侧的第一透镜，第二透镜和第三透镜。 第二透镜组包括从放大侧到缩小侧的第四透镜，第五透镜和第六透镜。 第三透镜组包括第七透镜。 最靠近固定焦点透镜中的放大侧的第一透镜组的透镜具有凹面。 最靠近缩小侧的第二透镜组的透镜表面与最靠近放大侧的第三透镜组的透镜表面之间的距离为L1。 固定焦点透镜的整体长度为L.定焦透镜满足0.1

公开(公告)号：US20070126329A1

公开(公告)日：2007-06-07

申请号：US11549124

申请日：2006-10-13

申请人： Fu-Ming Chuang ,  Yi-Tien Lu ,  Bih-Chang Wang

发明人： Fu-Ming Chuang ,  Yi-Tien Lu ,  Bih-Chang Wang

IPC分类号： H01K1/30 ,  H01J5/16 ,  H01J61/40

CPC分类号： G02B6/0053 ,  G02B5/045

摘要： A brightness enhancement film having a light exit surface and multiple stripe prisms disposed opposite to the light exit surface is provided. The stripe prisms are parallel, each stripe prism has a light incident curved surface, a light reflective inclined surface and a flat surface, and the light incident curved surface is connected between the light reflective inclined surface and the flat surface. The light incident curved surface and the flat surface are opposite to the light reflective inclined surface. The light incident curved surface is an outward curved surface. Further, a light beam from the light incident curved surface is reflected to the light exit surface by the light reflective surface.

摘要翻译： 提供了具有光出射表面的亮度增强膜和与光出射表面相对设置的多个条纹棱镜。 条状棱镜是平行的，每个条纹棱镜具有光入射弯曲表面，光反射倾斜表面和平坦表面，并且光入射弯曲表面连接在光反射倾斜表面和平坦表面之间。 光入射弯曲表面和平坦表面与光反射倾斜表面相反。 光入射曲面是向外弯曲的表面。 此外，来自光入射弯曲表面的光束被光反射表面反射到光出射表面。

公开(公告)号：US20110176226A1

公开(公告)日：2011-07-21

申请号：US12940467

申请日：2010-11-05

申请人： Yi-Tien LU ,  Yu-Tsung Lee

发明人： Yi-Tien LU ,  Yu-Tsung Lee

IPC分类号： G02B15/14 ,  G02B9/12 ,  G02B13/18

CPC分类号： G02B13/0035

摘要： A lens module has a magnified side and a reduced side having an imaging surface. The lens module includes a first, a second, and a third lens groups having positive refractive powers respectively. The first lens group includes a first and a second lenses. A value calculated by dividing a distance between a center of a surface of the first lens facing the magnified side and the imaging surface by the effective focal length of the lens module is greater than or equal to 1 and smaller than or equal to 3. The second lens group located between the first lens group and the reduced side includes a third and a fourth lenses. The third lens group located between the second lens group and the reduced side includes a fifth lens. Refractive powers of the first to the fifth lenses are negative, positive, positive, negative and positive, respectively.

摘要翻译： 透镜模块具有放大侧和具有成像表面的缩小侧。 透镜模块包括分别具有正折射力的第一透镜组，第二透镜组和第三透镜组。 第一透镜组包括第一和第二透镜。 通过将第一透镜的面对放大侧的表面的中心与成像面之间的距离除以透镜模块的有效焦距而计算出的值为大于等于1且小于等于3。 位于第一透镜组和缩小侧之间的第二透镜组包括第三透镜和第四透镜。 位于第二透镜组和缩小侧之间的第三透镜组包括第五透镜。 第一至第五透镜的折射率分别为负，正，正，负和正。