SCANNER DEVICE AND DEVICE FOR MEASURING THREE-DIMENSIONAL SHAPE OF OBJECT
    6.
    发明公开
    SCANNER DEVICE AND DEVICE FOR MEASURING THREE-DIMENSIONAL SHAPE OF OBJECT 有权
    VANRICHTUNG ZUR MESSUNG DER DREIDIMENSIONALEN FORM EINES OBJEKTS的SCANNERVORRICHTUNG

    公开(公告)号:EP2615412A1

    公开(公告)日:2013-07-17

    申请号:EP10857011.0

    申请日:2010-09-07

    IPC分类号: G01B11/25

    摘要: A laser beam (L50) is reflected by a light beam scanning device (60) and irradiated onto a hologram recording medium (45). On the hologram recording medium (45), an image (35) of a linear scatter body is recorded as a hologram by using reference light that converges on a scanning origin (B). The light beam scanning device (60) bends the laser beam (L50) at the scanning origin (B) and irradiates the laser beam onto the hologram recording medium (45). At this time, by changing a bending mode of the laser beam with time, an irradiation position of the bent laser beam (L60) on the hologram recording medium (45) is changed with time. Diffracted light (L45) from the hologram recording medium (45) produces a reproduction image (35) of the linear scatter body on a light receiving surface (R) of the stage 210. When an object is placed on the light receiving surface (R), a line pattern is projected by hologram reproduction light, so that the projected image is captured and a three-dimensional shape of the object is measured.

    摘要翻译: 激光束(L50)被光束扫描装置(60)反射并照射到全息图记录介质(45)上。 在全息记录介质(45)上,通过使用会聚在扫描原点(B)上的参照光,将线状散射体的图像(35)记录为全息图。 光束扫描装置(60)将激光束(L50)在扫描原点(B)弯曲,并将激光束照射到全息图记录介质(45)上。 此时,通过随时间改变激光束的弯曲模式,全息图记录介质(45)上的弯曲激光束(L60)的照射位置随时间变化。 来自全息图记录介质(45)的衍射光(L45)在平台210的光接收表面(R)上产生线状散射体的再现图像(35)。当物体被放置在光接收表面 ),通过全息图再现光投影线图案,从而捕获投影图像,并测量对象的三维形状。

    VERFAHREN ZUM SCHREIBEN HOLOGRAPHISCHER PIXEL
    10.
    发明公开
    VERFAHREN ZUM SCHREIBEN HOLOGRAPHISCHER PIXEL 有权
    方法用于写入全息PIXEL

    公开(公告)号:EP2126638A1

    公开(公告)日:2009-12-02

    申请号:EP08706789.8

    申请日:2008-01-17

    IPC分类号: G03H1/20

    摘要: The invention relates to a method for writing holographic pixels in a holographic recordable film (3), comprising a photo component that can be changed photochemically and/or photophysically by exposure, wherein the holographic recordable film (3) is positioned above a reflection master (4), wherein a primary light beam (P) is directed at the holographic recordable film (3), wherein the primary light beam (P) penetrates the holographic recordable film (3) and is reflected by the reflection master (4) to form a reflection light beam (R). The primary light beam (P) and the reflection light beam (R) interfere in the holographic recordable film (3) within an interference zone (10) and change the photo component in the interference zone to form the holographic pixel. The method is characterized in that a transmission hologram (6) is arranged between the holographic recordable film (3) and the reflection master (4) and that the transmission hologram (6) diffracts the primary light beam (P) and/or the reflection light beam (R) with the proviso that the interference zone (10) has a larger lateral surface area, in relation to the directions orthogonal to the surface normal for the holographic recordable film (3), than in the absence of the transmission hologram (6).