Zoom lens
    1.
    发明授权

    公开(公告)号:US10606046B2

    公开(公告)日:2020-03-31

    申请号:US14804283

    申请日:2015-07-20

    Abstract: A zoom lens arranged along an optical axis includes a first lens group and a second lens group. The second lens group has at least one aspheric lens. The first lens group moves toward an image side and the second lens group moves away from the image side along the optical axis during zooming. The first lens group is moved for focusing, and the second lens group is moved for zooming.

    Optical lens
    2.
    发明授权

    公开(公告)号:US10962749B2

    公开(公告)日:2021-03-30

    申请号:US16038645

    申请日:2018-07-18

    Abstract: An optical lens includes, in order along a direction, an aperture stop and a lens group with a positive refractive power. The aperture stop is disposed at an outermost side of all lenses of the optical lens, and the lens group has at least four lenses. At least one of the four lenses is an aspheric lens, and each of the four lenses has a clear aperture of smaller than 14 mm.

    Image-space telecentric lens
    3.
    发明授权

    公开(公告)号:US10795137B2

    公开(公告)日:2020-10-06

    申请号:US15087249

    申请日:2016-03-31

    Abstract: An image-space telecentric lens includes, in order from a magnified side to a minified side, a first lens group of negative refractive power, an aperture stop, and a second lens group of positive refractive power. The first lens group has at least one aspheric surface, and the second lens group has at least one aspheric surface. The second lens group has a cemented lens of positive refractive power, and the cemented lens is nearest the aperture stop as compared with other lens in the second lens group. The image-space telecentric lens satisfies the condition: TT

    Optical lens
    4.
    发明授权

    公开(公告)号:US10185129B2

    公开(公告)日:2019-01-22

    申请号:US15465610

    申请日:2017-03-22

    Abstract: A telecentric lens including a first lens group, an aperture stop, and a second lens group arranged in order from a magnified side to a minified side is provided. The first lens group has an outmost lens facing the magnified side, and the second lens group has an outmost lens facing the minified side. At least one of the outmost lens of the first lens group and the outmost lens of the second lens group is formed of glass. At least one of the first lens group and the second lens group has a lens having negative refractive power and being composed of plurality of lenses being mutually contacted to each other. The condition: TTL

    OPTICAL LENS
    5.
    发明申请
    OPTICAL LENS 审中-公开

    公开(公告)号:US20180275379A1

    公开(公告)日:2018-09-27

    申请号:US15465610

    申请日:2017-03-22

    CPC classification number: G02B13/22 G02B9/04 G02B9/60 G02B9/64 G02B13/16 G02B13/18

    Abstract: A telecentric lens including a first lens group, an aperture stop, and a second lens group arranged in order from a magnified side to a minified side is provided. The first lens group has an outmost lens facing the magnified side, and the second lens group has an outmost lens facing the minified side. At least one of the outmost lens of the first lens group and the outmost lens of the second lens group is formed of glass. At least one of the first lens group and the second lens group has a lens having negative refractive power and being composed of plurality of lenses being mutually contacted to each other. The condition: TTL

    OPTICAL LENS
    6.
    发明申请
    OPTICAL LENS 审中-公开

    公开(公告)号:US20170184823A1

    公开(公告)日:2017-06-29

    申请号:US14979515

    申请日:2015-12-28

    Abstract: An optical lens includes a first lens group and a second lens group. The first lens group is disposed between a magnified side and a minified side and has a negative refractive power. The second lens group is disposed between the first lens group and the minified side and has a positive refractive power. The optical lens is capable of forming an image at the magnified side. 0.52>F/H>0.46, where F is an effective focal length, and H is an image height.

    ZOOM LENS
    7.
    发明申请
    ZOOM LENS 审中-公开
    变焦镜头

    公开(公告)号:US20170023781A1

    公开(公告)日:2017-01-26

    申请号:US14804283

    申请日:2015-07-20

    CPC classification number: G02B15/177 G02B13/14 G02B13/18

    Abstract: A zoom lens arranged along an optical axis includes a first lens group and a second lens group. The second lens group has at least one aspheric lens. The first lens group moves toward an image side and the second lens group moves away from the image side along the optical axis during zooming. The first lens group is moved for focusing, and the second lens group is moved for zooming.

    Abstract translation: 沿着光轴布置的变焦透镜包括第一透镜组和第二透镜组。 第二透镜组具有至少一个非球面透镜。 第一透镜组朝向图像侧移动,并且第二透镜组在变焦期间沿着光轴移动远离像侧。 第一透镜组被移动以进行聚焦,并且第二透镜组被移动用于变焦。

    Projection lens and projector
    8.
    发明授权

    公开(公告)号:US10928612B1

    公开(公告)日:2021-02-23

    申请号:US16690142

    申请日:2019-11-21

    Abstract: A projection lens includes a first lens, a second lens, an aperture stop, a third lens, a fourth lens, a fifth lens, a sixth, and a concave mirror sequentially arranged from a minified side to a magnified side. An outer diameter of the second lens is less than an outer diameter of the first lens. An outer diameter of the fifth lens is greater than that of the fourth lens. An outer diameter of the sixth lens is less than that of the fifth lens. The first lens, the second lens, the aperture stop, and the third lens are fixed relative to the concave mirror and the fourth lens is capable of moving along an optical axis relative to the concave mirror when the projection lens is in focusing. The projection lens includes 9 to 30 lenses with refractive power. A projector using said projection lens is also provided.

    PROJECTION LENS AND PROJECTOR
    10.
    发明申请

    公开(公告)号:US20210072523A1

    公开(公告)日:2021-03-11

    申请号:US16690142

    申请日:2019-11-21

    Abstract: A projection lens includes a first lens, a second lens, an aperture stop, a third lens, a fourth lens, a fifth lens, a sixth, and a concave mirror sequentially arranged from a minified side to a magnified side. An outer diameter of the second lens is less than an outer diameter of the first lens. An outer diameter of the fifth lens is greater than that of the fourth lens. An outer diameter of the sixth lens is less than that of the fifth lens. The first lens, the second lens, the aperture stop, and the third lens are fixed relative to the concave mirror and the fourth lens is capable of moving along an optical axis relative to the concave mirror when the projection lens is in focusing. The projection lens includes 9 to 30 lenses with refractive power. A projector using said projection lens is also provided.

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