Diffractive optical element and a method for producing same
    4.
    发明授权
    Diffractive optical element and a method for producing same 有权
    衍射光学元件及其制造方法

    公开(公告)号:US06707608B1

    公开(公告)日:2004-03-16

    申请号:US09529007

    申请日:2001-02-20

    IPC分类号: G02B518

    CPC分类号: G02B5/1857

    摘要: The invention provides a method for producing a diffractive optical element, including forming first and second gratings, substantially in mutual registration, of at least first and second optical materials, such that for predetermined two or more wavelengths, the diffractive optical element has desired phase retardations, thereby avoiding the generation of chromatic aberrations. The invention further provides a diffractive optical element.

    摘要翻译: 本发明提供一种用于制造衍射光学元件的方法,包括形成至少第一和第二光学材料基本相互对准的第一和第二光栅,使得对于预定的两个或更多个波长,衍射光学元件具有期望的相位延迟 ,从而避免色差的产生。 本发明还提供一种衍射光学元件。

    Directed reflectors and systems utilizing same
    5.
    发明授权
    Directed reflectors and systems utilizing same 失效
    定向反射器和利用它的系统

    公开(公告)号:US06507441B1

    公开(公告)日:2003-01-14

    申请号:US09688120

    申请日:2000-10-16

    IPC分类号: G02B2710

    摘要: A wide angle directed reflector is disclosed. The directed reflector includes a lenticular layer including at least one array of lenslets, each of which having a focal length, The directed reflector further includes a reflective layer which is disposed relative to the lenticular layer. The lenticular layer and the reflective layer are constructed, designed and relatively disposed such that light incident at an angle of incidence on the lenticular layer is reflected by the reflective layer and redirected through the lenticular layer at a substantially constant angle relative to the angle of incidence.

    摘要翻译: 公开了一种广角定向反射器。 定向反射器包括透镜层,其包括至少一个小透镜阵列,每个小透镜阵列具有焦距。定向反射器还包括相对于双凸透镜层设置的反射层。 双凸透镜层和反射层被构造,设计和相对布置,使得以双凸透镜层的入射角入射的光被反射层反射并且以相对于入射角基本上恒定的角度重新定向穿过双凸透镜层 。

    DEPTH MAPPING USING PROJECTED PATTERNS
    6.
    发明申请
    DEPTH MAPPING USING PROJECTED PATTERNS 有权
    使用投影图案深度绘图

    公开(公告)号:US20100118123A1

    公开(公告)日:2010-05-13

    申请号:US12522171

    申请日:2008-04-02

    IPC分类号: H04N13/02 H04N5/225

    摘要: Apparatus for mapping an object includes an illumination assembly (30, 50), which includes a single transparency (36) containing a fixed pattern (60, 70, 80) of spots. A light source (34, 52) transilluminates the single transparency with optical radiation so as to project the pattern onto the object (28). An image capture assembly (32) captures an image of the pattern that is projected onto the object using the single transparency. A processor (24) processes the image captured by the image capture assembly so as to reconstruct a three-dimensional (3D) map of the object.

    摘要翻译: 用于映射物体的设备包括照明组件(30,50),其包括含有固定图案(60,70,80)的点的单个透明体(36)。 光源(34,52)用光学辐射透射单个透明物,以将图案投射到物体(28)上。 图像捕获组件(32)使用单个透明度捕获投影到对象上的图案的图像。 处理器(24)处理由图像捕获组件捕获的图像,以便重建对象的三维(3D)图。

    Spatial and spectral wavefront analysis and measurement
    9.
    发明授权
    Spatial and spectral wavefront analysis and measurement 失效
    空间和光谱波前分析和测量

    公开(公告)号:US06819435B2

    公开(公告)日:2004-11-16

    申请号:US09829435

    申请日:2001-04-09

    IPC分类号: G01B902

    摘要: A method and apparatus for wavefront analysis including obtaining a plurality of differently phase changed transformed wavefronts corresponding to a wavefront being analyzed which has an amplitude and a phase, obtaining a plurality of intensity maps of the plurality of phase changed transformed wavefronts and employing the plurality of intensity maps to obtain an output indicating the amplitude and phase of the wavefront being analyzed.

    摘要翻译: 一种用于波前分析的方法和装置,包括获得对应于被分析的具有振幅和相位的波阵面的多个不同相位改变的变换波阵面,获得多个相变变换波阵面的多个强度图,并采用多个 强度图以获得指示正在分析的波前的幅度和相位的输出。