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    COMPACT PROJECTION SYSTEMS AND RELATED COMPONENTS
    2.
    发明公开
    COMPACT PROJECTION SYSTEMS AND RELATED COMPONENTS 审中-公开
    紧凑的投影系统和相关组件

    公开(公告)号：EP3241070A1

    公开(公告)日：2017-11-08

    申请号：EP15823283.5

    申请日：2015-12-18

    申请人： 3M Innovative Properties Company

    发明人： OUDERKIRK, Andrew J. ,  MCDOWELL, Erin A. ,  YUN, Zhisheng

    IPC分类号： G03B21/00 ,  H04N5/74

    CPC分类号： H04N9/3105 ,  F21K9/61 ,  G02B27/286 ,  G02F1/1313 ,  G02F1/133536 ,  G03B21/005 ,  G03B21/2033 ,  G03B21/2066 ,  G03B21/2073 ,  G03B33/12 ,  H04N5/7441 ,  H04N5/7458 ,  H04N9/3167

    摘要： Projection systems and components thereof are described that are well suited to miniaturization. These systems and components may use one or more of the following features: a folded optical path, as in a reflective cavity or a beamsplitter; an illumination beam that is converging at the place where it impinges upon the spatial light modulator; a beamsplitter that uses opposed prisms of substantially different sizes; a beamsplitter whose obliquely disposed partial reflector defines a first rectangular reference space, and where at least a portion of the light source or at least a portion of the projector lens is disposed within such first rectangular reference space; a system in which a ratio of areas of the first rectangular reference space and a second rectangular reference space is within a specified range, where the second rectangular reference space is just large enough to encompass the optical components of the projector; a system in which the projector lens is small compared to the spatial light modulator.

    A DENTAL LIGHT IRRADIATION DEVICE
    4.
    发明公开
    A DENTAL LIGHT IRRADIATION DEVICE 有权
    ZAHNÄRZTLICHELICHTBESTRAHLUNGSVORRICHTUNG

    公开(公告)号：EP3134028A1

    公开(公告)日：2017-03-01

    申请号：EP15718741.0

    申请日：2015-04-16

    申请人： 3M Innovative Properties Company

    发明人： WELKER, Stefan K. ,  YUN, Zhisheng ,  SCHMID, Rudolf ,  SCHEPKE-GERLACH, Korbinian

    IPC分类号： A61C13/15 ,  G02B3/04

    CPC分类号： A61C19/004 ,  G02B3/04 ,  G02B19/0028 ,  G02B19/0052 ,  G02B19/0061

    摘要： A dental light irradiation device is adapted to emit blue light. The device has a light source, means for collimating light emitted from the light source, and a light guide. The light collimating means comprising:—a plano-convex lens oriented with the planar side toward the light source, and—a reflector formed by a hollow ring-shaped structure having an inner conical and reflective surface. The reflector is arranged such that its inner cross-section widens toward the lens and extends over the entire distance between the planar side of the lens and the light source. The light source being positioned substantially at the effective focal length of the lens, and the light guide having an input side for receiving light emitted from the light source and an output side for the light.

    摘要翻译： 牙科照射装置适于发出蓝光。 该装置具有光源，用于准直从光源发射的光的装置和光导。 光准直装置包括：平面侧朝向光源定向的平凸透镜，以及由具有内锥形和反射表面的中空环形结构形成的反射器。 反射器被布置成使得其内部横截面朝向透镜变宽并且在透镜的平面侧和光源之间的整个距离上延伸。 光源基本上位于透镜的有效焦距处，并且光导具有用于接收从光源发射的光的输入侧和用于光的输出侧。

    A DENTAL LIGHT IRRADIATION DEVICE
    7.
    发明授权
    A DENTAL LIGHT IRRADIATION DEVICE 有权
    牙科照射装置

    公开(公告)号：EP3134028B1

    公开(公告)日：2017-08-02

    申请号：EP15718741.0

    申请日：2015-04-16

    申请人： 3M Innovative Properties Company

    发明人： WELKER, Stefan K. ,  YUN, Zhisheng ,  SCHMID, Rudolf ,  SCHEPKE-GERLACH, Korbinian

    IPC分类号： A61C13/15 ,  G02B3/04

    CPC分类号： A61C19/004 ,  G02B3/04 ,  G02B19/0028 ,  G02B19/0052 ,  G02B19/0061

    摘要： A dental light irradiation device is adapted to emit blue light. The device has a light source, means for collimating light emitted from the light source, and a light guide. The light collimating means comprising:—a plano-convex lens oriented with the planar side toward the light source, and—a reflector formed by a hollow ring-shaped structure having an inner conical and reflective surface. The reflector is arranged such that its inner cross-section widens toward the lens and extends over the entire distance between the planar side of the lens and the light source. The light source being positioned substantially at the effective focal length of the lens, and the light guide having an input side for receiving light emitted from the light source and an output side for the light.

    摘要翻译： 牙科光照射装置适于发射蓝光。 该装置具有光源，用于准直从光源发射的光的装置以及光导。 该光准直装置包括： - 平面侧朝向光源定向的平凸透镜，以及 - 由具有内部锥形反射表面的中空环形结构形成的反射器。 反射器被布置成使得其内部横截面朝向透镜变宽并且在透镜的平面侧与光源之间的整个距离上延伸。 光源大致位于透镜的有效焦距处，并且光导具有用于接收从光源发射的光的输入侧和用于光的输出侧。