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    • 22. 发明授权
    • Lens barrel and optical apparatus
    • 镜筒和光学装置
    • US09213170B2
    • 2015-12-15
    • US14078676
    • 2013-11-13
    • CANON KABUSHIKI KAISHA
    • Atsushi Koyama
    • G02B15/10G02B7/14G02B7/10
    • G02B15/10G02B7/102G02B7/14
    • A lens barrel includes an image-pickup optical system that includes a main optical system and an extender optical system, an extender barrel configured to hold the extender optical system, a housing configured to house the extender barrel, a rotator configured to hold the extender barrel to rotatably support the extender barrel in the housing, to insert the extender optical system into the main optical system, and to retreats the extender optical system from the main optical system, and a retreat restraint. When the retreat restraint is in the first state, the extender optical system is retreated to a position which is not associated with formation of the optical image, but the extender optical system is undetachable from the rotator, and when the retreat restraint is in the second state, the extender optical system is detachable from the rotator.
    • 透镜镜筒包括摄像光学系统,其包括主光学系统和扩展器光学系统,配置成保持扩展器光学系统的扩展器镜筒,被配置为容纳扩展器镜筒的壳体,配置成保持扩展器镜筒 以可旋转地支撑在壳体中的扩展器筒,以将扩展器光学系统插入主光学系统中,并使扩展器光学系统从主光学系统退避,并且进行退避约束。 当退避约束处于第一状态时,延长光学系统被退回到与光学图像的形成不相关的位置,但是扩展器光学系统不能从旋转体移除,并且当退避约束处于第二状态时 状态,延长光学系统可从旋转体拆卸。
    • 23. 发明授权
    • Lenses for communication devices
    • 通讯设备透镜
    • US09188764B2
    • 2015-11-17
    • US14201565
    • 2014-03-07
    • Premier Systems USA, Inc.
    • Patrick D. O'Neill
    • G02B7/02G02B7/14G02B15/10H04N5/225G03B17/14G03B17/56G02B13/00
    • G02B7/14G02B7/002G02B13/001G02B13/02G02B15/10G03B17/14G03B17/565H04N5/2254Y10T29/49826
    • Some embodiments disclosed herein relate to a lens component having one or more lenses attached to a retainer portion configured to removably attach to communication devices such as mobile phones, tablet computers, media players, and the like. The retainer portion may be configured so as not to interfere with a user's view of a display panel of the communication device. In some embodiments, a plurality of lenses may be provided, and the lenses may be removably attached to the retainer portion and may be interchangeable. A structure for providing a flash may also be provided. In some embodiments, additional features may be provided, such as attachment components to facilitate attachment to stability devices, such as tripods, and to user-wearable accessories.
    • 本文公开的一些实施例涉及具有附接到保持器部分的一个或多个透镜的透镜部件,该保持器部分被配置为可拆卸地附接到诸如移动电话,平板计算机,媒体播放器等的通信设备。 保持器部分可以被配置成不干扰用户对通信设备的显示面板的视图。 在一些实施例中,可以设置多个透镜,并且透镜可以可移除地附接到保持器部分并且可以是可互换的。 还可以提供用于提供闪光灯的结构。 在一些实施例中,可以提供附加特征,诸如附接部件以便于连接到诸如三脚架之类的稳定装置,以及用户可穿戴的附件。
    • 26. 发明申请
    • OPTICAL SYSTEM FOR DIGITAL CINEMA PROJECTION
    • 数字电影投影光学系统
    • US20090303608A1
    • 2009-12-10
    • US12279333
    • 2007-02-13
    • Udo Schauss
    • Udo Schauss
    • G02B15/10G02B9/64
    • G02B13/16G02B13/22G02B15/02
    • The invention relates to an optical system for the projection of digital image data comprising a fixed focal length lens and a pivotable focal length extender. The principal field of application of the invention is digital cinema projection, usually employing the wide-screen format 1.9:1 or the Cinemascope format 2.37:1 (width:height). For format changeover during projection, two different fixed focal lengths are realized by the insertion or removal of the focal length extender (1755) into the lens. The projection lens according to the invention has more favorable optical properties than the conventional zoom lenses, such as a minimal chromatic transverse aberration, high telecentricity, very small distortions and a small volume and weight.
    • 本发明涉及一种用于投影数字图像数据的光学系统,其包括固定焦距透镜和可枢转焦距延伸器。 本发明的主要应用领域是数字电影投影,通常采用1.9:1的宽屏格式或2.37:1(宽:高)的Cinemascope格式。 对于投影期间的格式转换,通过将焦距延长器(1755)插入或移除到镜头中来实现两个不同的固定焦距。 根据本发明的投影透镜具有比常规变焦镜头更佳的光学特性,例如最小的彩色横向像差,高远心度,非常小的变形和小的体积和重量。
    • 27. 发明授权
    • Zoom lens and photographing apparatus having the same
    • 具有相同的变焦镜头和拍摄装置
    • US06989942B1
    • 2006-01-24
    • US09669664
    • 2000-09-26
    • Ryuji Nurishi
    • Ryuji Nurishi
    • G02B15/163G02B27/64G02B15/10
    • G02B27/646G02B15/173
    • A zoom lens includes, in order from an object side to an image side, a first lens unit of positive refractive power, a second lens unit of negative refractive power arranged to move during variation of magnification, a third lens unit arranged to compensate for shift of an image plane due to the variation of magnification, and a fourth lens unit of positive refractive power, wherein the fourth lens unit has a first lens subunit of negative refractive power, and an image is displaced by moving the first lens subunit in such a way as to have a component perpendicular to an optical axis of the zoom lens.
    • 变焦透镜从物体侧到像侧依次包括具有正屈光力的第一透镜单元,布置成在放大倍数变化期间移动的负折光力的第二透镜单元,布置成补偿偏移的第三透镜单元 的第一透镜单元,其中第四透镜单元具有负折光力的第一透镜单元,并且通过使第一透镜子单元移动到第二透镜单元的位置,使得图像被移位, 具有垂直于变焦透镜的光轴的分量的方式。