序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 空间光调制器及用空间光调制器显示计算全息图的方法 CN201510413120.9 2015-07-14 CN104950654B 2017-08-11 武乃福; 牛贝; 王涛; 魏伟; 吴坤; 林家强; 周春苗
发明公开了一种空间光调制器及用空间光调制器显示计算全息图的方法,用以大面积显示动态的计算全息图。所述空间光调制器包括若干阵列排列的微机电器件单元,每一微机电器件单元与计算全息图中的一个像元对应,每一微机电器件单元包括传感装置、挡光部和传动装置,传感装置用于接收计算机对该传感装置所属的微机电器件单元对应的像元进行罗曼编码后的位置信息,位置信息为本图像显示时挡光部的位置信息;以及将本帧图像显示时挡光部的位置信息发送给传动装置;传动装置用于在接收到本帧图像显示时挡光部的位置信息时,控制挡光部运动到本帧图像显示时挡光部的位置信息对应的位置。
2 空间光调制器及用空间光调制器显示计算全息图的方法 CN201510413120.9 2015-07-14 CN104950654A 2015-09-30 武乃福; 牛贝; 王涛; 魏伟; 吴坤; 林家强; 周春苗
发明公开了一种空间光调制器及用空间光调制器显示计算全息图的方法,用以大面积显示动态的计算全息图。所述空间光调制器包括若干阵列排列的微机电器件单元,每一微机电器件单元与计算全息图中的一个像元对应,每一微机电器件单元包括传感装置、挡光部和传动装置,传感装置用于接收计算机对该传感装置所属的微机电器件单元对应的像元进行罗曼编码后的位置信息,位置信息为本图像显示时挡光部的位置信息;以及将本帧图像显示时挡光部的位置信息发送给传动装置;传动装置用于在接收到本帧图像显示时挡光部的位置信息时,控制挡光部运动到本帧图像显示时挡光部的位置信息对应的位置。
3 APPARATUS FOR DISPLAYING HOLOGRAM US16224542 2018-12-18 US20190204784A1 2019-07-04 Keehoon HONG; Kwan-Jung OH; Hyon-Gon CHOO; Yongjun LIM
In the present invention, by providing an apparatus for displaying a hologram including: a beam source configured to output a plurality of beams, a spatial light modulator configured to include a plurality of SLM (spatial light modulator) regions, display a hologram, and diffract the plurality of beams; a plurality of front lenses each corresponding to the plurality of SLM regions, and configured to refract the plurality of beams diffracted from each of the plurality of SLM regions; a plurality of filters each corresponding to the plurality of SLM regions, and configured to filter a part of the plurality of refracted beams; and a plurality of back lenses each corresponding to the plurality of SLM regions, and configured to display an interference image corresponding to the hologram using the filtered part beam, the beam path of the hologram displaying apparatus can be drastically reduced, and an entire size of the hologram displaying apparatus can be reduced, so that it is possible to down-size the digital hologram display system.
4 REDUCING ORDERS OF DIFFRACTION PATTERNS US15257581 2016-09-06 US20170248825A1 2017-08-31 Andreas Georgiou; Joel S. Kollin
Examples are disclosed relating to reducing orders of diffraction patterns in phase modulating devices. An example phase modulating device includes a phase modulating layer having first and second opposing sides, a common electrode adjacent the first side of the phase modulating layer, a plurality of pixel electrodes adjacent the second side of the phase modulating layer, and blurring material disposed between the phase modulating layer and the pixel electrodes. In the example phase modulating device, the blurring material is configured to smooth phase transitions in the phase modulating layer between localized areas associated with the pixel electrodes, the pixel electrodes have a pixel pitch by which the pixel electrodes are distributed along the phase modulating layer, and the pixel electrodes are separated from one another by an inter-pixel gap, where the ratio of the inter-pixel gap to the pixel pitch is between 0.50 and 1.0.
5 DISPOSITIF D'IMAGERIE SANS LENTILLE ET PROCÉDÉ D'OBSERVATION ASSOCIÉ EP16190242.4 2016-09-22 EP3147646A1 2017-03-29 GLIERE, Alain; BOUTAMI, Salim; TCHELNOKOV, Alexei; VOZNYUK, Ivan; ALLIER, Cédric

L'invention décrit un dispositif permettant l'observation d'un échantillon, comportant des particules, par exemple des particules biologiques, par imagerie sans lentille. L'échantillon est disposé contre un support, le support étant interposé entre une source de lumière et un capteur d'image. Le support comporte au moins une couche mince, s'étendant selon un plan de couche mince, structurée de façon à former un réseau de diffraction, apte à confiner une partie d'une onde lumineuse émise par la source de lumière, selon un plan parallèle audit plan de couche mince. Le dispositif ne comporte pas d'optique de grossissement entre le support et le capteur d'image.

6 SEE-THROUGH HOLOGRAPHIC DISPLAY APPARATUS EP16196067 2016-10-27 EP3163379A1 2017-05-03 SUNG GEEYOUNG; KIM YUNTAE; AN JUNGKWUEN; LEE HONGSEOK
A see-through holographic display apparatus includes a relay optical system expanding or reducing and transferring a hologram image generated by a spatial light modulator, a noise removal filter removing noise from diffraction light of the hologram image transferred through the relay optical system, and a light path converter changing at least one of a path of the diffraction light of the hologram image transferred from the relay optical system and a path of external light.
7 Spatial light modulator and method for displaying computer generated hologram using the same US15113949 2016-01-14 US10126710B2 2018-11-13 Naifu Wu; Bei Niu; Tao Wang; Wei Wei; Kun Wu; Chia Chiang Lin; Chunmiao Zhou
A spatial light modulator and a method for displaying a computer generated hologram are disclosed. The spatial light modulator includes a plurality of MEMS units arranged in an array, each of the MEMS units corresponds to a pixel of a computer generated hologram and includes a sensing device, a light shielding portion and a driving device. The sensing device is configured for receiving position information that is obtained through Roman encoding a pixel corresponding to an MEMS unit including the sensing device and the position information is transmitted to the driving device by the sensing device. The driving device is configured for controlling the light shielding portion to move to a position corresponding to the position information in response to the received position information of the light shielding portion when the present frame is displayed.
8 SPATIAL LIGHT MODULATOR AND METHOD FOR DISPLAYING COMPUTER GENERATED HOLOGRAM USING THE SAME US15113949 2016-01-14 US20170146953A1 2017-05-25 Naifu Wu; Bei Niu; Tao Wang; Wei Wei; Kun Wu; Chia Chiang Lin; Chunmiao Zhou
A spatial light modulator and a method for displaying a computer generated hologram are disclosed. The spatial light modulator includes a plurality of MEMS units arranged in an array, each of the MEMS units corresponds to a pixel of a computer generated hologram and includes a sensing device, a light shielding portion and a driving device. The sensing device is configured for receiving position information that is obtained through Roman encoding a pixel corresponding to an MEMS unit including the sensing device and the position information is transmitted to the driving device by the sensing device. The driving device is configured for controlling the light shielding portion to move to a position corresponding to the position information in response to the received position information of the light shielding portion when the present frame is displayed.
9 PROJECTION DEVICE AND METHOD FOR THE HOLOGRAPHIC RECONSTRUCTION OF SCENES US15365116 2016-11-30 US20170082976A1 2017-03-23 Armin SCHWERDTNER
A holographic reconstruction of scenes includes a light modulator, an imaging system with at least two imaging means and an illumination device with sufficient coherent light for illumination of hologram coded in the light modulator. The at least two imaging means are arranged such that a first imaging means is provided for the magnified imaging of the light modulator on a second imaging means. The second imaging means is provided for imaging of a plane of a spatial frequency spectrum of the light modulator in a viewing plane at least one viewing window. The viewing window corresponds to a diffraction order of the spatial frequency spectrum.
10 LENSLESS IMAGING DEVICE AND ASSOCIATED METHOD OF OBSERVATION US15274108 2016-09-23 US20170082975A1 2017-03-23 Alain GLIERE; Salim BOUTAMI; Alexei TCHELNOKOV; Ivan VOZNYUK; Cedric ALLIER
The invention describes a device allowing the observation of a sample, comprising particles, for example biological particles, by lensless imaging. The sample is disposed against a substrate, the substrate being interposed between a light source and an image sensor. The substrate comprises at least one thin film, extending across a thin film plane, structured so as to form a diffraction grating, designed to confine a part of a light wave emitted by the light source, in a plane parallel to said thin film plane. The device does not comprise magnification optics between the substrate and the image sensor.
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