HOLOGRAPHIC DISPLAY DEVICES
    2.
    发明公开
    HOLOGRAPHIC DISPLAY DEVICES 审中-公开
    全息显示设备

    公开(公告)号:EP1891486A1

    公开(公告)日:2008-02-27

    申请号:EP06755792.6

    申请日:2006-06-15

    IPC分类号: G03H1/22

    摘要: This invention relates to electronic devices incorporating a holographic projector. A holographic projection module for a consumer electronic device, the holographic projection module comprising: at least one substantially monochromatic light source (12); a spatial light modulator (24) (SLM) to phase modulate light (22) from said light source to provide a phase hologram for generating a two-dimensional displayed image (14); projection optics to project said phase modulated light to form said two-dimensional displayed image; wherein said projection optics comprise an optical system (26) configured to demagnify a conventional, non-holographic image, to increase the divergence of said light forming said displayed image,- and a digital signal processor (100) to generate data for a plurality of temporal holographic sub frames from a desired image for display, for modulating said SLM, such that temporal averaging amongst the subframes reduces the perceived level of noise, in said displayed image when images corresponding to the subframes are displayed successively and sufficiently fast that they are integrated together in the eye of a human observer.

    Computer generated hologram, exposure apparatus and device fabrication method
    7.
    发明公开
    Computer generated hologram, exposure apparatus and device fabrication method 有权
    计算机全息图,Belichtungsapparat和Herstellungsverfahrenfüreine Vorrichtung

    公开(公告)号:EP2133755A2

    公开(公告)日:2009-12-16

    申请号:EP09161275.4

    申请日:2009-05-27

    发明人: Matsubara, Isao

    IPC分类号: G03H1/08 G03F7/20

    摘要: The present invention provides a computer generated hologram (100) including a plurality of cells (110a to 110d) which form a light intensity distribution (LI) on a predetermined plane (PS), the plurality of cells including a plurality of first cells (110a to 110d) including isotropic media (112) and anisotropic media (114), and a plurality of second cells (110a) including anisotropic media alone, wherein the plurality of cells change a phase of incident light which impinges on each of the plurality of cells to form a phase distribution including N (N ≥ 2) for each of a wavefront of a linearly polarized light component in a first direction and a wavefront of a linearly polarized light component in a second direction perpendicular to the first direction.

    摘要翻译: 本发明提供了一种计算机产生的全息图,包括在预定平面(PS)上形成光强分布(LI)的多个单元(110a至110d),所述多个单元包括多个第一单元(110a 包括各向同性介质(112)和各向异性介质(114)的多个第二单元(110a),以及包括各向异性介质的多个第二单元(110a),其中所述多个单元改变入射到所述多个单元中的每个单元的入射光的相位 以形成第一方向上的线偏振光分量的波前和垂直于第一方向的第二方向上的线偏振光分量的波阵面中的每一个的相位分布,N(N≥0)。

    Computer generated hologram, exposure apparatus, and hologram fabrication method
    8.
    发明公开
    Computer generated hologram, exposure apparatus, and hologram fabrication method 审中-公开
    计算机系统全息图,Belichtungsvorrichtung und Herstellungsverfahrenfürdas Hologramm

    公开(公告)号:EP2023216A2

    公开(公告)日:2009-02-11

    申请号:EP08159814.6

    申请日:2008-07-07

    发明人: Matsubara, Isao

    IPC分类号: G03H1/08

    摘要: The present invention provides a computer generated hologram (100) which forms a light intensity distribution on a predetermined plane (PS) by giving a phase distribution to a wavefront of incident light, comprising an anisotropic layer (114) whose refractive index with respect to linearly polarized light in a first direction is different from a refractive index of the anisotropic layer with respect to linearly polarized light in a second direction perpendicular to the linearly polarized light in the first direction, and an isotropic layer (112) whose refractive index with respect to the linearly polarized light in the first direction is equal to a refractive index of the isotropic layer with respect to the linearly polarized light in the second direction.

    摘要翻译: 本发明提供了一种计算机产生的全息图(100),其通过给入射光的波前给出相位分布而在预定平面(PS)上形成光强度分布,包括相对于线性的折射率的各向异性层(114) 第一方向上的偏振光与垂直于第一方向的线偏振光的第二方向上的线偏振光的各向异性层的折射率不同,以及相对于第一方向的折射率的各向同性层 第一方向上的线偏振光相对于第二方向上的线偏振光的折射率等于各向同性层的折射率。

    Mittels Fehlerdiffusionsverfahren binärisiertes Computerhologramm
    10.
    发明公开
    Mittels Fehlerdiffusionsverfahren binärisiertes Computerhologramm 失效
    Mittels FehlerdiffusionsverfahrenbinärisiertesComputerhologramm。

    公开(公告)号:EP0531909A1

    公开(公告)日:1993-03-17

    申请号:EP92115219.5

    申请日:1992-09-04

    申请人: Fried. Krupp AG

    IPC分类号: G03H1/08 G02B5/32

    摘要: In einem computer-generierten Hologramm (13) (CGH) wird unter Binärisierung mit Hilfe des im Prinzip nach dem Stand der Technik bekannten Fehlerdiffusionsverfahrens im Fourier-Spektrum des CGH mindestens eine Nullstelle des Binärisierungsrauschens erzeugt, die im Spektrum der Nutzwelle liegt bzw. durch dieses verläuft. Durch Filterung (15) in der Fourier-Ebene des CGH kann das Nutzlicht vom Rauschen getrennt und eine rauschfreie Nutzwelle (11) erzeugt werden, insbesondere zur Erzeugung eines holographisch-optischen Elementes (12).

    摘要翻译: 在计算机生成的全息图(13)(CHG)中,借助于原理上按照现有技术已知的误差扩散方法在CGH的傅里叶谱中至少产生二值化 位于或穿过有用波谱的二值化噪声的一个零点。 通过在CGH的傅立叶平面中滤波(15),有用光可以与噪声分离,并且可以产生无噪声的有用波(11),特别是为了产生全息光学元件(12)的目的, 。