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公开(公告)号：US09423546B2
公开(公告)日：2016-08-23
申请号：US14455434
申请日：2014-08-08
发明人： Makio Kurashige
IPC分类号： G02B5/32 , G02B5/02 , G02B27/48 , G03H1/22 , G03H1/32 , G03B21/20 , G03B33/06 , H04N9/31 , G03H1/02 , G03H1/04 , F21V5/00 , F21V14/00 , G03H1/00 , G03H1/26 , F21Y101/00
CPC分类号： G03H1/32 , F21V5/004 , F21V14/00 , F21V14/04 , F21Y2101/00 , F21Y2115/10 , F21Y2115/30 , G02B3/08 , G02B5/0252 , G02B5/32 , G02B27/48 , G03B21/2033 , G03B21/208 , G03B33/06 , G03H1/0005 , G03H1/02 , G03H1/0244 , G03H1/0248 , G03H1/0402 , G03H1/22 , G03H1/2286 , G03H2001/0204 , G03H2001/0212 , G03H2001/0216 , G03H2001/0413 , G03H2001/0415 , G03H2001/0428 , G03H2001/0439 , G03H2001/045 , G03H2001/2292 , G03H2001/262 , G03H2222/36 , H04N9/3129
摘要： A laser beam (L50) generated by a laser light source (50) 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 scatter plate 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 it onto the hologram recording medium (45). At this time, scanning is carried out by changing the bending mode of the laser beam with time so that the irradiation position of the bent laser beam (L60) on the hologram recording medium (45) changes with time. Regardless of the beam irradiation position, diffracted light (L45) from the hologram recording medium (45) reproduces the same reproduction image (35) of the scatter plate at the same position. An illumination spot in which speckles are reduced is formed on the light receiving surface (R) of an illuminating object (70) by the reproduction image (35) of the hologram.
摘要翻译： 由激光源（50）产生的激光束（L50）被光束扫描装置（60）反射，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）上的参照光将散射板的图像（35）记录为全息图。 光束扫描装置（60）使扫描原点（B）处的激光束（L50）弯曲并将其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来进行扫描，使得全息图记录介质（45）上的弯曲激光束（L60）的照射位置随时间变化。 不管光束照射位置，来自全息图记录介质（45）的衍射光（L45）在同一位置再现散射板的相同再现图像（35）。 通过全息图的再现图像（35）在照明对象（70）的光接收表面（R）上形成其中减少斑点的照明点。
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公开(公告)号：US09366946B2
公开(公告)日：2016-06-14
申请号：US14113312
申请日：2012-04-19
CPC分类号： G03B21/2066 , G02B5/32 , G02B26/105 , G02B27/48 , G03B21/142 , G03B21/2033 , G03B21/208 , G03H1/0402 , G03H1/2286 , G03H1/2294 , G03H1/32 , G03H2001/0439 , G03H2001/2292 , H04N9/3129
摘要： A projection apparatus has an optical device configured to be capable of diffusing coherent light beams, an irradiation unit configured to irradiate the coherent light beams to the optical device so that the coherent light beams scan the optical device, a light modulator that is illuminated by coherent light beams incident on and diffused at respective points of the optical device from the irradiation unit, a projection optical system configured to project a modulated image generated by the light modulator onto a scattering plane, and an intermediate optical system provided between the optical device and the light modulator, configured to restrict an diffusion angle of coherent light beams diffused by the optical device.
摘要翻译： 投影装置具有被配置为能够漫射相干光束的光学装置，被配置为将相干光束照射到光学装置的照射单元，使得相干光束扫描光学装置，由相干光照射的光调制器 在来自照射单元的光学装置的各个点处入射并扩散的光束;投影光学系统，被配置为将由光调制器产生的调制图像投影到散射面上;以及中间光学系统，设置在光学装置与 光调制器，被配置为限制由光学器件扩散的相干光束的扩散角。
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公开(公告)号：US09310621B2
公开(公告)日：2016-04-12
申请号：US13821091
申请日：2011-09-08
CPC分类号： G02B27/48 , G02B5/32 , G02B26/10 , G02B26/101 , G03B21/2013 , G03B21/2033 , G03B21/2046 , G03B21/208 , G03H1/0005 , G03H1/22 , G03H1/2286 , G03H1/32 , G03H2222/36 , G03H2225/60 , H04N9/3129 , H04N9/3147
摘要： A projection device includes an optical element including a hologram recording medium where information is multiplexedly recorded in each position so as to allow a coherent light beam to be diffused to a plurality of regions, an irradiation device configured to irradiate the optical element with the coherent light beam so as to allow the coherent light beam to scan the hologram recording medium, spatial light modulators configured to be illuminated with the coherent light beam which is incident from the irradiation device to the hologram recording medium to be diffused to the plurality of regions, and projection optical systems, each projection optical system projecting modulation image obtained on each spatial light modulator on corresponding screen. The coherent light beam, which is incident to each position of the hologram recording medium to be diffused, is illuminated on a plurality of the spatial light modulators.
摘要翻译： 投影装置包括：光学元件，包括全息图记录介质，其中信息被多路复用地记录在每个位置，以允许相干光束被扩散到多个区域;照射装置，被配置为用相干光照射光学元件 以允许相干光束扫描全息图记录介质，空间光调制器被配置为被从照射装置入射到全息图记录介质以被漫射到多个区域的相干光束照射;以及 投影光学系统，每个投影光学系统在相应的屏幕上投射在每个空间光调制器上获得的调制图像。 入射到要漫射的全息图记录介质的每个位置的相干光束被照射在多个空间光调制器上。
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公开(公告)号：US09217879B2
公开(公告)日：2015-12-22
申请号：US14568204
申请日：2014-12-12
CPC分类号： G02B27/48 , G02B5/0252 , G02B26/0816 , G02B26/103 , G02B26/105 , G02B26/123 , G02B26/124 , G02B27/1066 , G03B21/2033 , G03B21/2046 , G03B21/2066 , G03B21/208 , G03H1/00 , G03H1/22 , G03H1/2286 , G03H1/32 , G03H2222/36 , H04N9/3129 , H04N9/3147 , H04N9/315 , H04N9/3161 , H04N9/3164
摘要： Provided are a projection device and a projection-type video display device capable of displaying a plurality of videos, allowing speckles to be inconspicuous, and miniaturizing an optical system. A projection device includes an optical element including light diffusion elements capable of diffusing light, an irradiation device configured to irradiate the optical element with illumination light beams, each illumination light beam scanning the corresponding light diffusion element, spatial light modulators, each spatial light modulator being illuminated with illumination light beam which is incident from the irradiation device to each light diffusion element to be diffused, and projection optical systems, each projection optical system projecting modulation image obtained on each spatial light modulator on corresponding screen. The illumination light beam, which is incident to each position of each light diffusion element to be diffused, overlappedly illuminates on corresponding spatial light modulator.
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15.发明授权Illumination device, projection device, and projection-type image display device 有权照明装置，投影装置和投影型图像显示装置公开(公告)号：US09176365B2
公开(公告)日：2015-11-03
申请号：US13821734
申请日：2011-09-08
IPC分类号： G03B21/14 , G02B27/28 , G02B27/48 , G03B21/40 , G03B35/18 , G03H1/22 , G03H1/32 , F21V9/14 , G03H1/20 , G02B5/02 , G03H1/00
CPC分类号： G03B21/14 , F21V9/14 , G02B5/0252 , G02B27/286 , G02B27/48 , G03B21/2033 , G03B21/2066 , G03B21/2073 , G03B21/208 , G03B21/40 , G03B35/18 , G03H1/0005 , G03H1/20 , G03H1/22 , G03H1/2286 , G03H1/32 , G03H2222/31 , G03H2222/36
摘要： An illumination device includes: an optical element which including a hologram recording medium including a first zone and a second zone and can reproduce an image of a scattering plate; an irradiation device which irradiates the optical element with a coherent light beam such that the light beam is allowed to scan the hologram recording medium; and a polarization control unit provided on an optical path of the light beam to an illuminated zone. The light beams incident on respective positions of the hologram recording medium are allowed to reproduce the image superimposed on the illuminated zone. The polarization control unit controls polarization of the light beams such that the light beam incident on the first zone to travel toward the illuminated zone and the light beam incident on the second zone to travel toward the illuminated zone are configured with different polarization components.
摘要翻译： 照明装置包括：光学元件，其包括包括第一区域和第二区域的全息图记录介质，并且可以再现散射板的图像; 照射装置，其用相干光束照射光学元件，使得允许光束扫描全息图记录介质; 以及偏振控制单元，其设置在光束到照明区域的光路上。 入射到全息图记录介质的相应位置的光束被允许再现叠加在照明区域上的图像。 偏振控制单元控制光束的偏振，使得入射在第一区域上的光束朝着照明区域行进，并且入射到第二区域的光束朝着照明区域行进，配置有不同的偏振分量。
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公开(公告)号：US20150234351A1
公开(公告)日：2015-08-20
申请号：US14418956
申请日：2013-07-30
CPC分类号： G03H1/32 , G02B27/0093 , G03H1/2205 , G03H1/2249 , G03H1/2294 , G03H1/26 , G03H1/30 , G03H2001/0216 , G03H2001/0816 , G03H2001/2236 , G03H2001/2239 , G03H2001/2242 , G03H2001/2271 , G03H2001/2292 , G03H2001/2297 , G03H2001/2605 , G03H2001/262 , G03H2210/30 , G03H2210/36 , G03H2222/18 , G03H2222/33 , G03H2223/18 , G03H2223/19 , G03H2223/24 , G03H2226/05 , G03H2227/03 , G03H2240/50
摘要： A method for despeckling a Computer Generated Hologram (CGH) including producing a CGH, and jittering a location of an exit pupil of an optical system through which the CGH is imaged, relative to an observer's input pupil, so as to shift at least some speckles out of the exit pupil. A method for despeckling a Computer Generated Holographic movie including computing a first modulation of a first holographic image in a holographic movie, and computing a second modulation of a second holographic image using an initial phase distribution used for calculating the first holographic image as an initial phase distribution used for calculating the second modulation. Related apparatus and methods are also described.
摘要翻译： 一种用于解散计算机生成的全息图（CGH）的方法，包括产生CGH，并且相对于观察者的输入光瞳抖动CGH被成像的光学系统的出射光瞳的位置，以便至少移动一些斑点 退出学生。 一种用于解散计算机生成的全息影片的方法，包括计算全息影片中的第一全息图像的第一调制，以及使用用于计算第一全息图像作为初始相位的初始相位分布来计算第二全息图像的第二调制 用于计算第二调制的分布。 还描述了相关装置和方法。
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公开(公告)号：US20150116800A1
公开(公告)日：2015-04-30
申请号：US14525731
申请日：2014-10-28
CPC分类号： G02B27/0103 , G02B27/48 , G02B2027/0118 , G02B2027/013 , G03H1/2205 , G03H1/2286 , G03H1/2294 , G03H1/32 , G03H2001/2297 , G03H2225/32 , G03H2240/51
摘要： The phase of laser light is modulated by a phase modulating array, and a hologram image is projected on a rotating screen. Light emission of the laser light is driven by PWM modulation so that a light emission period and a non-light emission period following the light emission period are repeated. In a case where the luminance of the hologram image is changed, the duty ratio of the light emission period is changed. In a case where the luminance is significantly reduced, the light emission intensity of the laser light is reduced without changing the duty ratio. Since the duty ratio is not reduced, a light diffusion condition on the rotating screen can be randomized even in a case where the luminance is reduced.
摘要翻译： 激光的相位由相位调制阵列调制，全息图像投射在旋转屏幕上。 通过PWM调制来驱动激光的发光，从而重复在发光周期之后的发光周期和非发光时间。 在全息图像的亮度改变的情况下，发光周期的占空比发生变化。 在亮度明显降低的情况下，激光的发光强度降低而不改变占空比。 由于占空比不降低，即使在亮度降低的情况下，旋转屏幕上的光扩散条件也可以随机化。
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公开(公告)号：US20100097672A1
公开(公告)日：2010-04-22
申请号：US12520165
申请日：2007-12-13
申请人： Norbert Leister
发明人： Norbert Leister
CPC分类号： G03H1/32 , G03H1/2294 , G03H2001/221 , G03H2001/2242 , G03H2001/306 , G03H2222/24 , G03H2222/34 , G03H2223/19
摘要： A method for reducing speckle patterns of a three-dimensional holographic reconstruction is disclosed. A controllable light modulator into which a three-dimensional scene is coded is illuminated by coherent light, a reconstruction means projects the modulated light close to an eye position into a space of observation and a control means controls the illumination. This provides a holographic reproduction device in which the speckle patterns occurring during reconstruction of a three-dimensional scene are reduced. Also provided is a next-to-real time method using a carrier medium of conventional image refresh rate.
摘要翻译： 公开了一种用于减少三维全息重构的斑点图案的方法。 三维场景被编码的可控光调制器被相干光照亮，重建装置将接近眼睛位置的调制光投射到观察空间中，控制装置控制照明。 这提供了一种全息再现装置，其中减少了在重建三维场景期间发生的散斑图案。 还提供了使用常规图像刷新率的载体介质的接下来的实时方法。
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公开(公告)号：US20050029464A1
公开(公告)日：2005-02-10
申请号：US10633304
申请日：2003-08-04
申请人： Noam Babayoff , Yossef Atiya , Tzvi Philipp
发明人： Noam Babayoff , Yossef Atiya , Tzvi Philipp
CPC分类号： G01J1/0448 , G02B21/0056 , G02B21/006 , G02B21/008 , G02B27/48 , G03H1/32
摘要： An apparatus adapted for confocal imaging of a non-flat specimen comprising a coherent light source for producing a light beam, imaging optics adapted to focus the light beam into at least one spot on a surface of a specimen, and a detector adapted to receive and detect light reflected from the specimen surface. The imaging optics comprise at least one optical component located so that the light reflected from the specimen surface passes therethrough on its way to the detector. The optical component is movable so as to move the at least one spot, within a range of movement, to a number of distinct locations in a plane perpendicular to the apparatus' optical axis, within the detector's integration time.
摘要翻译： 一种适于非平坦样本的共焦成像的设备，包括用于产生光束的相干光源，适于将光束聚焦到样本表面上的至少一个点的成像光学器件，以及适于接收和 检测从样品表面反射的光。 成像光学器件包括至少一个光学部件，其被定位成使得从检测器表面反射的光在通过检测器的途中穿过其中。 在检测器的积分时间内，光学部件是可移动的，以便将运动范围内的至少一个光点移动到与装置的光轴垂直的平面中的多个不同位置。
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公开(公告)号：US6166389A
公开(公告)日：2000-12-26
申请号：US139380
申请日：1998-08-25
IPC分类号： F21V23/04 , F21S8/08 , F21V3/04 , F21W131/103 , F21W131/107 , F21Y101/00 , G02B5/02 , G02B5/32 , G03H1/32
CPC分类号： G02B5/0221 , G02B5/0252 , G02B5/0278 , G02B5/32 , G03H1/32
摘要： An apparatus for projecting light on to a predetermined area includes a light source and a transparent element disposed adjacent the light source where in the transparent element is made from a sol-gel type glass, quartz, or other optical material. A plurality of surface micro-structures integral in a surface of the transparent element are provided which both homogenize and control directionality of light passing form the light source through the transparent element. These micro-structures produce a predetermined pattern of highly transmissive, smoothly varying, non-discontinuous light in a predetermined direction which is suitable for any number of applications wherein a sol-gel material transparent element including the diffuser surface structures are particularly well suited.
摘要翻译： 用于将光投射到预定区域的装置包括光源和邻近光源设置的透明元件，其中透明元件由溶胶 - 凝胶型玻璃，石英或其它光学材料制成。 提供了在透明元件的表面中整合的多个表面微结构，其均匀化并且控制通过透明元件从光源通过的光的方向性。 这些微结构在预定方向上产生高度透射，平滑变化的非间断光的预定图案，其适用于任何数量的应用，其中包括漫射器表面结构的溶胶 - 凝胶材料透明元件特别适合。
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