OPTICAL SYSTEM COMPRISING A SPATIAL LIGHT MODULATOR
    1.
    发明公开
    OPTICAL SYSTEM COMPRISING A SPATIAL LIGHT MODULATOR 审中-公开
    OPTISCHES系统麻醉机EINEMRÄUMLICHENLICHTMODULATOR

    公开(公告)号:EP3111268A1

    公开(公告)日:2017-01-04

    申请号:EP15706237.3

    申请日:2015-02-24

    IPC分类号: G02B21/00 G03H1/22

    摘要: The invention concerns an optical system (10) comprising: - a spatial light modulator (13) comprising an array of controllable elements adapted for generating a modulated light beam (17) by diffracting an incident light beam (12), the modulated light beam (17) comprising a modulated part and an unmodulated "zero order" part, the modulated part carrying an image to be projected into a replay volume (18), - a control unit for applying a control signal to the controllable elements so as to control the modulated light beam (17) generated by the controllable elements, - a perturbing optical element (30) for introducing optical aberrations in the incident light beam (12) and/or the modulated light beam (17) so as to spread the unmodulated "zero order" part of the modulated light beam in the replay volume (18), the perturbing optical element (30) generating distortions in the image to be projected, wherein the control signal comprises an image signal component carrying data representative of the image to be projected and a correction signal component representative of a correction pattern for correcting the distortions generated by the perturbing optical element (30) in the image to be projected.

    摘要翻译: 本发明涉及一种光学系统(10),包括: - 空间光调制器(13),包括可控元件阵列,其适于通过衍射入射光束(12),调制光束 17)包括调制部分和未调制的“零级”部分,所述调制部分承载要投影到重放音量(18)中的图像, - 控制单元,用于向可控元件施加控制信号,以便控制 由可控元件产生的调制光束(17), - 用于在入射光束(12)和/或调制光束(17)中引入光学像差的扰动光学元件(30),以便将未调制的“零” 扰动光学元件(30)产生在要投影的图像中的失真,其中控制信号包括载有表示 要投影的图像和校正信号分量,该校正信号分量表示用于校正由待扰动的图像中的扰动光学元件(30)产生的失真的校正图案。

    Optical system comprising a spatial light modulator
    2.
    发明公开
    Optical system comprising a spatial light modulator 审中-公开
    Optisches System mit einemräumlichenLichtmodulator

    公开(公告)号:EP2910992A1

    公开(公告)日:2015-08-26

    申请号:EP14305253.8

    申请日:2014-02-24

    IPC分类号: G02B21/00 G03H1/22

    摘要: The invention concerns an optical system (10) comprising:
    - a spatial light modulator (13) comprising an array of controllable elements adapted for generating a modulated light beam (17) by diffracting an incident light beam (12), the modulated light beam (17) comprising a modulated part and an unmodulated "zero order" part, the modulated part carrying an image to be projected into a replay volume (18),
    - a control unit for applying a control signal to the controllable elements so as to control the modulated light beam (17) generated by the controllable elements,
    - a perturbing optical element (30) for introducing optical aberrations in the incident light beam (12) and/or the modulated light beam (17) so as to spread the unmodulated "zero order" part of the modulated light beam in the replay volume (18), the perturbing optical element (30) generating distortions in the image to be projected, wherein the control signal comprises an image signal component carrying data representative of the image to be projected and a correction signal component representative of a correction pattern for correcting the distortions generated by the perturbing optical element (30) in the image to be projected.

    摘要翻译: 本发明涉及一种光学系统(10),包括: - 空间光调制器(13),包括可控元件阵列,其适于通过衍射入射光束(12),调制光束 17)包括调制部分和未调制的“零级”部分,所述调制部分承载要投影到重放音量(18)中的图像, - 控制单元,用于向可控元件施加控制信号,以便控制 由可控元件产生的调制光束(17), - 用于在入射光束(12)和/或调制光束(17)中引入光学像差的扰动光学元件(30),以便将未调制的“零” 扰动光学元件(30)产生在要投影的图像中的失真,其中控制信号包括载有表示 要投影的图像和校正信号分量,该校正信号分量表示用于校正由待扰动的图像中的扰动光学元件(30)产生的失真的校正图案。

    Holographic image display systems
    4.
    发明公开
    Holographic image display systems 审中-公开
    系统zur Anzeige von Hologrammen

    公开(公告)号:EP2372472A1

    公开(公告)日:2011-10-05

    申请号:EP11166183.1

    申请日:2009-07-08

    IPC分类号: G03H1/22 G03H1/08

    摘要: This invention relates to holographic image display systems. We describe an optical module for a holographic image projection system which displays a hologram (204) of a low spatial frequency portion of input image data on an SLM (SLM1) to form a holographically-generated intermediate real image which is in turn modulated (SLM2) by a higher spatial frequency portion of the image data (206), to display the image. The optical module comprises: at least one laser light source; a first spatial light modulator (SLM1) to modulate light from said at least one laser light source; intermediate optics (L4) to provide an intermediate real image plane at which a real image produced by a hologram on said first SLM is formed; a second SLM (SLM2) located at said intermediate real image plane to intensity modulate said real image; and output optics (L5,L6) to project an image of said intensity modulated real image; and wherein a resolution of said second SLM is greater than a resolution of said first SLM.

    摘要翻译: 本发明涉及全息图像显示系统。 我们描述了一种用于全息图像投影系统的光学模块,其在SLM(SLM1)上显示输入图像数据的低空间频率部分的全息图(204),以形成依次调制的全息产生的中间真实图像(SLM2 )通过图像数据(206)的较高空间频率部分来显示图像。 光学模块包括:至少一个激光光源; 调制来自所述至少一个激光源的光的第一空间光调制器(SLM1); 中间光学器件(L4),以提供形成在所述第一SLM上由全息图产生的真实图像的中间实像平面; 位于所述中间实像平面处的第二SLM(SLM2),以强度调制所述真实图像; 和输出光学器件(L5,L6)投射所述强度调制的真实图像的图像; 并且其中所述第二SLM的分辨率大于所述第一SLM的分辨率。

    VORRICHTUNG ZUM BETRACHTEN EINES HOLOGRAMMS AN SICH UND SEINER REKONSTRUKTION
    9.
    发明公开
    VORRICHTUNG ZUM BETRACHTEN EINES HOLOGRAMMS AN SICH UND SEINER REKONSTRUKTION 有权
    设备用于观看全息图本身及其重建

    公开(公告)号:EP1825335A1

    公开(公告)日:2007-08-29

    申请号:EP05822766.1

    申请日:2005-12-15

    申请人: tesa scribos GmbH

    IPC分类号: G03H1/22

    摘要: The invention relates to a device for reading out a hologram (9), in particular a computer-generated hologram (9), comprising a radiation source for irradiating the hologram (9) with a readout beam (10) of electromagnetic radiation and an exit opening (2) for receiving an image that is generated by the hologram (9). The invention aims to solve the technical problem of providing a device of this type for reading out a hologram, which allows more flexibility and provides greater convenience during use and which has at the same time a simple construction. To achieve this, the device is provided with an optical system that comprises at least two lenses (12, 16), a respective focal point of the first lens (12) and second lens (16) being located essentially on one plane (13). The hologram (9) is positioned in front of at least the second lens (16), when viewed from the direction of the beam.

    Anordnung und Verfahren zum Prüfen von optischen Beugungsstrukturen auf Dokumenten
    10.
    发明公开
    Anordnung und Verfahren zum Prüfen von optischen Beugungsstrukturen auf Dokumenten 审中-公开
    装置和方法用于在文档上的光学衍射结构的测试

    公开(公告)号:EP1589496A1

    公开(公告)日:2005-10-26

    申请号:EP05008484.7

    申请日:2005-04-19

    IPC分类号: G07D7/12

    摘要: Die Erfindung betrifft eine Anordnung sowie ein Verfahren zum Prüfen von optischen Beugungsstrukturen (z.B. Kinegrammen) auf Dokumenten.
    Die Aufgabe, eine neue Möglichkeit zum Prüfen von optischen Beugungsstrukturen auf Dokumenten zu finden, die mit geringem gerätetechnischem Aufwand in kürzester Zeit das Vorhandensein und die Echtheit von optischen Beugungsstrukturen nachzuweisen gestattet, wird erfindungsgemäß gelöst, indem die Sensoreinheit (3) orthogonal über der Auflagefläche des Dokuments (1) angeordnet ist, die Beleuchtungseinheit (2) mindestens zwei monochromatische Lichtquellen (22) enthält, die zur Aussendung von Lichtbündeln unter definierten Einfallswinkeln (42) bezüglich einer auf der Beugungsstruktur (11) errichteten Flächennormale (12) des Dokuments (1) angebracht und sequenziell einschaltbar sind, wobei mindestens eine Lichtquelle (22) einen Einfallswinkel (42) aufweist, der in Richtung und Betrag mit einem Beugungswinkel übereinstimmt, unter dem ein Intensitätsmaximum des strukturspezifisch erzeugten Beugungsmusters (23) entsteht, falls die Beugungsstruktur (11) aus Richtung der Sensoreinheit (3) beleuchtet würde.

    摘要翻译: 安排用于对文档的光学衍射结构的检查具有照明单元和用于从定义的角度检测光的传感器布置。 所述传感器单元(3)被正交地在文档上方布置,而所述照明单元(2)具有至少两个单色光源(22)做在入射限定的角度(42)相对于所述衍射结构(11)发射的光。 传感器和照明单元进行同步,以便做衍射信号对应于接通的光源进行测量。 独立claimsoft被用于在文档上检查光衍射图案的方法进行说明。