Apparatus and method for producing hologram and apparatus and method for
displaying hologram
    11.
    发明授权
    Apparatus and method for producing hologram and apparatus and method for displaying hologram 失效
    用于制造全息图的装置和方法及显示全息图的装置和方法

    公开(公告)号:US06038042A

    公开(公告)日:2000-03-14

    申请号:US829901

    申请日:1997-03-25

    申请人: Tamiki Takemori

    发明人: Tamiki Takemori

    IPC分类号: G03H1/08

    摘要: Used as a propagation function is a half-plane propagation function which is restricted such that it has a value only within a half plane in a predetermined direction perpendicular to a propagating axis in a plane which is perpendicular to the propagating axis. According to a convolution integration with this function, the wavefront of object light on a hologram surface is determined, whereby hologram data is produced. Thus produced hologram is read out by means of readout light. After the light with a wavefront forming the conjugate image of the object to be viewed is blocked, the image of the object to be viewed is observed. Thus, a hologram, which has a high quality and from which the conjugate image is easily eliminated at the time of image reproduction, is produced while a recording device with a relatively low spatial resolution is used, and a three-dimensional form is displayed while the distortion with respect to the original image is reduced in thus produced hologram and the conjugate image is eliminated therefrom.

    摘要翻译: 用作传播函数的是半平面传播函数,其被限制,使得其在垂直于垂直于传播轴的平面中的垂直于传播轴的预定方向上具有仅在半平面内的值。 根据与该功能的卷积积分,确定全息图表面上的物体光的波前,从而产生全息图数据。 由此产生的全息图通过读出光读出。 在具有形成待观看对象的共轭图像的波前的光被遮挡之后,观察要观看的对象的图像。 因此,在使用具有相对低的空间分辨率的记录装置的同时,产生具有高质量并且在图像再现时容易消除共轭图像的全息图,并且显示三维形式,同时 在这样产生的全息图中减少了相对于原始图像的失真,从而消除了共轭图像。

    Optical digital apparatus
    12.
    发明授权
    Optical digital apparatus 失效
    光学数字设备

    公开(公告)号:US5442471A

    公开(公告)日:1995-08-15

    申请号:US121901

    申请日:1993-09-16

    CPC分类号: G06E1/02 G06E1/04

    摘要: Operation results for all combinations of input optical signal values to be operated are previously determined and substantially parallel light beams reflecting the operation results for all combinations are generated. Selectors for selecting transmission area of the input light beams in accordance with digital information born by optical signals are arranged for the respective optical signals along the direction of propagation of the light beams. Through the logically cascade-connected selectors, an optical signal corresponding to a combination of current input optical signals is selected from the operation results for all combinations.

    摘要翻译: 预先确定要操作的输入光信号值的所有组合的操作结果,并且产生反映所有组合的操作结果的基本上平行的光束。 用于根据光信号产生的数字信息选择输入光束的传输区域的选择器被布置成沿着光束的传播方向的各个光信号。 通过逻辑级联连接的选择器,从所有组合的操作结果中选择对应于电流输入光信号的组合的光信号。

    Three-dimensional image display and three-dimensional image displaying method
    13.
    发明授权
    Three-dimensional image display and three-dimensional image displaying method 有权
    三维图像显示和三维图像显示方法

    公开(公告)号:US08400696B2

    公开(公告)日:2013-03-19

    申请号:US10585253

    申请日:2005-01-05

    IPC分类号: G02B5/32

    摘要: A three-dimensional image displaying apparatus comprises a spatial light modulation element having a discrete pixel structure and expressing a hologram, an illumination optical system generating reconstruction light by causing illumination light to enter said spatial light modulation element that expresses the hologram, and a lens as a reconstruction image converting optical system displaying a reconstruction image by producing a virtual image wavefront-converted from the reconstruction light.

    摘要翻译: 三维图像显示装置包括具有离散像素结构并表示全息图的空间光调制元件,通过使照明光进入表示全息图的空间光调制元件而产生重构光的照明光学系统,以及透镜 重建图像转换光学系统,通过产生从重建光波前转换的虚拟图像来显示重建图像。

    LASER PROCESSING APPARATUS AND LASER PROCESSING METHOD
    14.
    发明申请
    LASER PROCESSING APPARATUS AND LASER PROCESSING METHOD 有权
    激光加工设备和激光加工方法

    公开(公告)号:US20100079832A1

    公开(公告)日:2010-04-01

    申请号:US12566143

    申请日:2009-09-24

    IPC分类号: G03H1/08 G02B5/32

    摘要: A laser processing apparatus 1 includes a laser light source 10, a phase modulation type spatial light modulator 20, a driving unit 21, a control unit 22, and an imaging optical system 30. The imaging optical system 30 may be a telecentric optical system. A storage unit 21A included in the driving unit stores a plurality of basic holograms corresponding to a plurality of basic processing patterns and a focusing hologram corresponding to a Fresnel lens pattern. The control unit 22 arranges in parallel two or more basic holograms selected from the plurality of basic holograms stored in the storage unit 21A, overlaps the focusing hologram with each of the basic holograms arranged in parallel to form the whole hologram, and presents the formed whole hologram to the spatial light modulator 20.

    摘要翻译: 激光处理装置1包括激光源10,相位调制型空间光调制器20,驱动单元21,控制单元22和成像光学系统30.成像光学系统30可以是远心光学系统。 包括在驱动单元中的存储单元21A存储对应于多个基本处理模式的多个基本全息图和对应于菲涅耳透镜图案的聚焦全息图。 控制单元22平行地布置从存储在存储单元21A中的多个基本全息图中选择的两个或更多个基本全息图,与聚焦全息图重叠,每个基本全息图平行布置以形成整个全息图,并呈现形成的整体 全息图到空间光调制器20。

    3D image display and 3D image display method
    15.
    发明授权
    3D image display and 3D image display method 有权
    3D图像显示和3D图像显示方法

    公开(公告)号:US07312908B2

    公开(公告)日:2007-12-25

    申请号:US10527448

    申请日:2003-09-11

    IPC分类号: G03H1/22

    摘要: A small, inexpensive three-dimensional image display having a structure for displaying a color three-dimensional image sharply even if a low-resolution spatial optical modulating element is used. The three-dimensional image display has an illumination light source unit, a transmission spatial optical modulating element, a lens, and a mask. The illumination light source unit includes three point light sources outputting illumination light components having wavelengths (red, green, blue) different from one another. The point light source outputting the blue illumination light component of the shortest wavelength is disposed in position B(0, 0) on the optical axis of an illumination optical system, the point light source outputting the red illumination light component is disposed in position R(xr, 0), and the point light source outputting the green illumination light component is disposed in position G(xg, 0). An aperture section of the mask is disposed in the region where the zero-order diffracted waves of the reproduction light components of the three wavelengths after subjected to wavefront conversion by the lens are superposed on one another. The illumination optical system determines the direction of incidence of each of the illumination optical components of the three wavelengths on the spatial optical modulation element.

    摘要翻译: 即使使用了低分辨率的空间光调制元件,也具有即使显示彩色三维图像的结构也是显着的结构的小型便宜的三维图像显示器。 三维图像显示器具有照明光源单元,透射空间光调制元件,透镜和掩模。 照明光源单元包括输出具有彼此不同的波长(红色,绿色,蓝色)的照明光分量的三点光源。 将输出最短波长的蓝色照明光分量的点光源配置在照明光学系统的光轴上的位置B(0,0)处,输出红色照明光分量的点光源配置在位置R( x),并且将绿色照明光分量输出的点光源配置在位置G(x,g,0)。 掩模的孔径部分设置在通过透镜进行波前转换之后的三个波长的再现光分量的零级衍射波彼此重叠的区域中。 照明光学系统确定空间光调制元件上的三个波长的每个照明光学部件的入射方向。

    Hologram preparing method
    16.
    发明申请
    Hologram preparing method 失效
    全息图准备方法

    公开(公告)号:US20050030603A1

    公开(公告)日:2005-02-10

    申请号:US10497087

    申请日:2002-11-29

    摘要: In the method for producing holograms, a plurality of images displayed on a spatial optical modulating element 6 is used as the object light. Through a lens array 7 composed of a plurality of lenses disposed corresponding to each of the images, which are included in the object light, and a reducing optical system 9 and 10 for reducing the object light emitted from the lens array 7, the object light is made to irradiate a recording surface 11 along with a reference light; thereby interference light between the object light and the reference light is recorded on the recording surface 11. Between the spatial optical modulating element 6 and the lens array 7, partitions 15 for separating the respective images are provided; thereby noise is reduced.

    摘要翻译: 在制造全息图的方法中,使用在空间光调制元件6上显示的多个图像作为对象光。 通过由对应于包括在物体光中的每个图像设置的多个透镜构成的透镜阵列7和用于减少从透镜阵列7发射的物体光的还原光学系统9和10,物体光 使其与参考光一起照射记录表面11; 从而将物体光和参考光之间的干涉光记录在记录表面11上。在空间光学调制元件6和透镜阵列7之间设置用于分离各个图像的隔板15。 从而降低噪音。

    Holography imaging apparatus holography display apparatus holography
imaging method and holography display method
    17.
    发明授权
    Holography imaging apparatus holography display apparatus holography imaging method and holography display method 失效
    全息成像设备全息显示设备全息成像方法和全息显示方法

    公开(公告)号:US5889599A

    公开(公告)日:1999-03-30

    申请号:US807920

    申请日:1997-02-28

    申请人: Tamiki Takemori

    发明人: Tamiki Takemori

    IPC分类号: G03H1/04 G03H1/22 G03H1/26

    摘要: A diaphragm having an aperture, the size of which is equal to or smaller than .lambda.f/p (.lambda. is the wavelength, p is the imaging resolution, and f is the focal length of an imaging optical system) is arranged on the focal plane of the object space of the imaging optical system, and object light via the aperture is imaged by the imaging optical system. The object light via the imaging optical system and reference light are brought to interference to form interference fringes, and an image of the interference fringes is sensed. Using the hologram sensed in this manner, the image of the object to be sensed is reconstructed by adopting an imaging optical system equivalent to that upon imaging, and setting the positional relationship between the formed hologram and the imaging optical system in correspondence with that between the imaging optical system and the imaging surface upon imaging. In this way, a holography imaging apparatus which can vary the field of view and can sense a high-quality hologram using an imaging device having a relatively low spatial resolution is realized, and a holography display apparatus which can display an image by eliminating distortion with respect to the original image from a hologram sensed by the holography imaging apparatus of this invention is realized.

    摘要翻译: 具有孔径的膜片设置在焦平面上,其尺寸等于或小于λf / p(λ是波长,p是成像分辨率,f是成像光学系统的焦距) 的成像光学系统的物体空间,并且经由孔径的物体光被成像光学系统成像。 通过成像光学系统和参考光的对象光被干扰以形成干涉条纹,并且感测到干涉条纹的图像。 使用以这种方式感测的全息图,通过采用与成像时相同的成像光学系统来重建待感测物体的图像,并且将形成的全息图和成像光学系统之间的位置关系设置为与 成像光学系统和成像表面。 以这种方式,实现了可以改变视野并且可以使用具有相对低的空间分辨率的成像装置感测高质量全息图的全息成像装置,以及可以通过消除失真来显示图像的全息显示装置 实现了由本发明的全息摄影装置感测到的全息图对原始图像的影响。

    Optical deformation measuring apparatus by double-writing speckle images
into a spatial light modulator
    18.
    发明授权
    Optical deformation measuring apparatus by double-writing speckle images into a spatial light modulator 失效
    光学变形测量装置通过将散斑图像双重写入空间光调制器

    公开(公告)号:US5166742A

    公开(公告)日:1992-11-24

    申请号:US748884

    申请日:1991-08-23

    IPC分类号: G01B9/02 G01B11/16 G02F1/135

    摘要: An object is typically illuminated by laser light, and reflected light carrying a speckle pattern is amplified by an image intensifier. First and second speckle patterns representing the object before and after its deformation, respectively are written by double writing into a ferroelectric liquid crystal spatial light modulator (FLC-SLM). The double-written image is read out from the FLC-SLM, and converted by a Fourier transform optical system into an output optical image, i.e., Young's fringe. The output optical image is detected by a photoelectric converter, and analyzed by an image processing device to determine a deformation of the object.

    摘要翻译: 物体通常由激光照射,并且携带斑点图案的反射光被图像增强器放大。 分别通过双写写入铁电液晶空间光调制器(FLC-SLM)中的表示其变形前后物体的第一和第二散斑图案。 双写图像从FLC-SLM读出,并通过傅立叶变换光学系统转换为输出光学图像,即杨氏边缘。 输出光学图像由光电转换器检测,并由图像处​​理装置分析,以确定物体的变形。

    Deformation measuring method and device using cross-correlation function
between speckle patterns with reference data renewal
    19.
    发明授权
    Deformation measuring method and device using cross-correlation function between speckle patterns with reference data renewal 失效
    变形测量方法和装置使用散斑图案与参考数据更新之间的互相关函数

    公开(公告)号:US4967093A

    公开(公告)日:1990-10-30

    申请号:US367659

    申请日:1989-06-19

    申请人: Tamiki Takemori

    发明人: Tamiki Takemori

    IPC分类号: G01B11/16

    CPC分类号: G01B11/162

    摘要: In a deformation measuring method and device in which an object is irradiated with a laser beam before and after deformation of the object to obtain speckle patterns, the speckle patterns thus obtained are photoelectrically converted into electrical signals, and the cross-correlation function between the speckle patterns is calculated using the electrical signals to obtain displacement of the speckle pattern on the basis of the shift of position of the extreme value of the mutual-correlation function and to determine the amount of deformation of the object from the displacement of the speckle pattern, (1) the reference speckle pattern data for calculation of the cross-correlation function is renewed when the extreme value of the cross-correlation function is lower in level than a predetermined value or when the position of the extreme value is out of a predetermined range, or (2) the reference speckle pattern data is renewed when the extreme value of the cross-correlation function is lower in level than a predetermined value and a calculation range for calculating the cross-correlation function is shifted when the position of the extreme value is out of a predetermined range.

    Method and apparatus for realtime-monitoring astronomical object with
speckle interferometry
    20.
    发明授权
    Method and apparatus for realtime-monitoring astronomical object with speckle interferometry 失效
    用斑点干涉法实时监测天文物体的方法和装置

    公开(公告)号:US4913549A

    公开(公告)日:1990-04-03

    申请号:US257674

    申请日:1988-10-14

    摘要: A realtime monitor of an astronomical object such as a double star using speckle interferometry comprises a TV camera for picking up an image of a star which is formed by a telescope, first means for producing an incoherent still picture of the star on the basis of an output from the TV camea, second means for producing a power spectrum of the star by converting the incoherent still picture to a coherent image and then optically Fourier-transforming it, third means for adding the consecutively produced power spectra to obtain an average power spectrum, and fourth means for controlling first, second and third means and calculating a normalized average power spectrum of an object star through dividing the average power spectrum of the object star by that of a reference star.

    摘要翻译: 诸如使用散斑干涉测量的双星的天文物体的实时监视器包括用于拾取由望远镜形成的星形图像的电视摄像机,第一装置用于产生星形的非相干静止图像,其基于 来自电视的输出,第二种通过将非相干静止图像转换为相干图像并且然后光学傅立叶变换来产生星的功率谱的装置,第三装置用于添加连续产生的功率谱以获得平均功率谱, 以及第四装置,用于控制第一,第二和第三装置,并通过将对象星的平均功率谱除以参考星的平均功率谱计算物体星的归一化平均功率谱。