公开(公告)号：US10753737B1

公开(公告)日：2020-08-25

申请号：US16690141

申请日：2019-11-21

Applicant: National Central University

Inventor： Wei-Hung Su ,  Yeh-Wei Yu ,  Ching-Cherng Sun

IPC: G01B11/25 ,  G01B11/24

Abstract: A method for reconstructing a surface of an object includes the steps as follows. A light beam is modulated by a spatial light modulator (SLM) and is projected to form a pattern, wherein the pattern has a transmittance distribution in a cosine distribution such that the pattern is formed to become a fringe pattern with a periodic change. A first impulse and a second impulse present within a first period and a second period of the cosine distribution, wherein a position where the first impulse occurs within the first period and a position where the second impulse occurs within the second period are different. The light beam is guided to an object so as to form a scan pattern on the object. The scan pattern is read. According to the scan pattern, a surface profile of the object is calculated.

公开(公告)号：US09632299B2

公开(公告)日：2017-04-25

申请号：US14048006

申请日：2013-10-07

Applicant: National Central University

Inventor： Ching-Cherng Sun ,  Yeh-Wei Yu

IPC: G02B21/36 ,  G02B21/06 ,  G03H1/00 ,  G02B21/00 ,  G02B21/14 ,  G03H1/04

CPC classification number: G02B21/06 ,  G02B21/0008 ,  G02B21/14 ,  G02B21/361 ,  G03H1/0005 ,  G03H1/0443 ,  G03H2001/005 ,  G03H2001/0445 ,  G03H2001/0469 ,  G03H2001/0471

Abstract: A digital holographic microscope is provided. The digital holographic microscope includes a light source, a grating, an image sensing device, and an optical module. The light source is configured for providing a light beam. The grating is disposed between the light source and a sample. The grating is configured for splitting the light beam into a reference light beam and an object light beam. The image sensing device is configured for collecting the reference light beam, and collecting the object light beam reflected from the sample. The optical module is disposed between the light source and the sample, and is configured for guiding the reference light beam to the image sensing device, and guiding the object light beam to the sample.

公开(公告)号：US09542970B2

公开(公告)日：2017-01-10

申请号：US14880285

申请日：2015-10-12

Applicant: National Central University

Inventor： Ching-Cherng Sun ,  Yeh-Wei Yu ,  Che-Chu Lin

IPC: G11B7/00 ,  G11B7/1353

CPC classification number: G11B7/1353 ,  G11B7/0065 ,  G11B7/1374 ,  G11B2007/00653

Abstract: A light interference module includes an object lens, a first light-guiding element, and a second light-guiding element. The object lens is configured to project a signal light beam to an optical storage media. The first light-guiding element is configured to project a first reference light beam to the optical storage media, in which the first reference light beam and the signal light beam produce a first interference pattern on the optical storage media. The second light-guiding element is configured to project a second reference light beam to the optical storage media, in which the second reference light beam and the signal light beam produce a second interference pattern on the optical storage media, and the first interference pattern is different from the second interference pattern.

Abstract translation: 光干涉模块包括物镜，第一导光元件和第二导光元件。 物镜被配置为将信号光束投射到光学存储介质。 第一导光元件被配置为将第一参考光束投射到光学存储介质，其中第一参考光束和信号光束在光学存储介质上产生第一干涉图案。 第二导光元件被配置为将第二参考光束投射到光学存储介质，其中第二参考光束和信号光束在光学存储介质上产生第二干涉图案，并且第一干涉图案是 不同于第二干涉图案。

公开(公告)号：US09535400B2

公开(公告)日：2017-01-03

申请号：US14153673

申请日：2014-01-13

Applicant: National Central University

Inventor： Yeh-Wei Yu ,  Ching-Cherng Sun

IPC: G03H1/08 ,  G03H1/04

CPC classification number: G03H1/0808 ,  G03H1/04 ,  G03H1/041 ,  G03H1/0443 ,  G03H1/08 ,  G03H1/0866 ,  G03H2001/0445 ,  G03H2001/0447 ,  G03H2001/0452 ,  G03H2223/16

Abstract: The present invention provides a digital hologram recording system and a numerical reconstruction method for a hologram, which are used for capturing an image of an object and recording it as a holographic data. Said system comprises: signal light, formed after irradiating the object with a light source; an image detector, for recording interference fringes of the signal light; and a light pipe, arranged in a path of the signal light and located between the object and the image detector, wherein the light pipe has a reflection surface, and a part of the signal light enters the image detector after reflected by the reflection surface of the light pipe. The present invention can make the collected signal equivalent to several times of the pixel counts of the image detector, thereby able to break through the spatial bandwidth limitation and shortening the amount of time required to measure the hologram.

Abstract translation: 本发明提供了一种用于全息图的数字全息图记录系统和数值重建方法，用于拍摄对象的图像并将其记录为全息数据。 所述系统包括：用光源照射物体后形成的信号光; 图像检测器，用于记录信号光的干涉条纹; 以及配置在所述信号光的路径上且位于所述物体与所述图像检测器之间的光管，其中所述光管具有反射面，并且所述信号光的一部分在被所述反射面的反射面反射之后进入所述图像检测器 光管。 本发明可以使收集到的信号等于图像检测器的像素数量的几倍，从而能够突破空间带宽限制并缩短测量全息图所需的时间量。

公开(公告)号：US11164488B2

公开(公告)日：2021-11-02

申请号：US16809037

申请日：2020-03-04

Applicant: NATIONAL CENTRAL UNIVERSITY

Inventor： Yi-Chun Chen ,  Ted Liang-Tai Lee ,  Ching-Cherng Sun ,  Tsung-Xian Lee

IPC: G09F13/22 ,  H01L33/58 ,  H01L33/60 ,  H01L33/48 ,  F21V3/02 ,  F21Y115/10

Abstract: An information display board with improved display performance by light-extending light sources is revealed. The information display board includes a display board and a plurality of light-extending light sources each of which consists of a light emitting diode (LED) and a reflective panel. The LED has a light emitting side and a backside while the reflective panel is disposed on the light emitting side of the LED for reflecting a part of light emitted from the light emitting side to the display board on the backside to form an expanded area. Thus illuminance and illuminated area of information shown on the display board are increased. By continuous lighting generated, messages/information shown on the information display board such as traffic sign can be read more clearly and comfortably.

公开(公告)号：US10685474B2

公开(公告)日：2020-06-16

申请号：US16194847

申请日：2018-11-19

Applicant: NATIONAL CENTRAL UNIVERSITY

Inventor： Yeh-Wei Yu ,  Chi-Chung Lau ,  Ching-Cherng Sun ,  Tsung-Hsun Yang ,  Tzu-Kai Wang ,  Jia-Ching Wang ,  Chien-Yao Wang ,  Kuan-Chung Wang

IPC: G06T15/04 ,  G06T19/20

Abstract: The present invention provides a method for repairing incomplete 3D depth image using 2D image information. The method includes the following steps: obtaining 2D image information and 3D depth image information; dividing 2D image information into 2D reconstruction blocks and 2D reconstruction boundaries, and corresponding to 3D reconstruction of blocks and 3D reconstruction boundaries; analyzing each 3D reconstruction block, partitioning into residual-surface blocks and repaired blocks; and proceeding at least one 3D image reconstruction, which extends with the initial depth value of the 3D depth image of each of the residual-surface block and covers all the corresponding repaired block to form a repair block and to achieve the purpose of repairing incomplete 3D depth images using 2D image information.

公开(公告)号：US09895853B2

公开(公告)日：2018-02-20

申请号：US14660921

申请日：2015-03-17

Applicant: National Central University

Inventor： Yeh-Wei Yu ,  Ching-Cherng Sun

IPC: B29D11/00 ,  B29D17/00 ,  G03H1/30 ,  G11B7/0065

CPC classification number: G11B7/26 ,  B29D11/0074 ,  B29D17/005 ,  G03H1/18 ,  G03H1/30 ,  G03H2250/12 ,  G03H2250/42 ,  G03H2260/30 ,  G03H2270/54 ,  G11B7/0065 ,  G11B7/24044 ,  G11B7/24062 ,  G11B2007/240025

Abstract: A holographic storage layer includes a reflective structure and photosensitive units. The reflective structure is a grid-shaped structure and includes cavities. The photosensitive units are disposed in the cavities, in which each of the photosensitive units is surrounded by the reflective structure. First openings and second openings are defined by the reflective structure, and the photosensitive units are exposed by the first openings and the second openings respectively.

公开(公告)号：US09625124B2

公开(公告)日：2017-04-18

申请号：US14814724

申请日：2015-07-31

Applicant: National Central University

Inventor： Ching-Cherng Sun ,  Tsung-Hsun Yang ,  Xuan-Hao Lee ,  Chen-Hao Lee

IPC: F21V14/00 ,  F21S8/08 ,  F21V3/04 ,  F21V5/00

CPC classification number: F21V14/006 ,  F21S8/086 ,  F21V3/049 ,  F21V5/004 ,  F21V17/002 ,  F21W2131/103 ,  F21Y2105/10 ,  F21Y2115/10

Abstract: A lamp structure of an adaptive streetlight includes a housing, a plurality of light sources, and a surface-structured diffusion plate. The surface-structured diffusion plate enables the lamp structure to provide a light pattern conforming to the curvature of the road to be illuminated or other sites of application, thus reducing not only the number of lamps or streetlights required for a curvy road section, but also the associated installation cost and power consumption. The lamp structure can enhance road users' safety and the safety of our daily lives by increasing the illuminance on a curvy road and other sites of application that have special requirements.

公开(公告)号：US09466326B2

公开(公告)日：2016-10-11

申请号：US15011627

申请日：2016-01-31

Applicant: National Central University

Inventor： Yeh-Wei Yu ,  Ching-Cherng Sun

IPC: G11B7/00 ,  G11B7/24085 ,  G11B7/0065 ,  G11B7/24

CPC classification number: G11B7/24085 ,  G11B7/0065 ,  G11B7/24044 ,  G11B2007/240025

Abstract: A holographic storage disk includes a reflective layer, a storage layer, and quarter-wave plate. A storage layer is disposed on the reflective layer and includes a reflection-structure layer and photosensitive units. The reflection-structure layer has cavities, in which the reflection-structure layer is grid-shaped. The cavities penetrate the reflection-structure layer. The photosensitive units are disposed in the cavities. The quarter-wave plate is disposed between the reflective layer and the photosensitive units.

Abstract translation: 全息存储盘包括反射层，存储层和四分之一波片。 存储层设置在反射层上并且包括反射结构层和感光单元。 反射结构层具有空腔，其中反射结构层为网格。 空腔穿透反射结构层。 感光单元设置在空腔中。 四分之一波长板设置在反射层和感光单元之间。

公开(公告)号：US08827523B1

公开(公告)日：2014-09-09

申请号：US13855094

申请日：2013-04-02

Applicant: National Central University

Inventor： Ching-Cherng Sun ,  Yi-Chien Lo ,  Hui-En Liu ,  Kuan-Hung Lee

IPC: F21V5/00 ,  F21V23/04 ,  F21V8/00

CPC classification number: F21V23/0407 ,  F21S10/043 ,  F21V13/04 ,  F21V23/0442 ,  F21W2121/00 ,  F21Y2115/10 ,  G02B6/0096

Abstract: An candle-like lighting device includes a light body having a diffuser, a light guider and a light source; the diffuser having a plurality of diffusing particles mounted therein; the light guider having a reflecting portion defined at one end thereof and having a refracting portion defined at another end thereof, the diffuser sleeving the light guider; and the light source assembled to the light guider. Wherein, partial light beams from the light source are reflected by the reflecting portion toward the refracting portion and are refracted by the refracting portion into the diffuser; simultaneously, rest light beams form the light source are directly transmitted toward the refracting portion and are refracted by the refracting portion into the diffuser; as a result, the refracted light beams are diffused by the diffusing particles in the diffuser.

Abstract translation: 烛形照明装置包括具有扩散器，导光体和光源的灯体; 扩散器具有安装在其中的多个扩散粒子; 光导体具有限定在其一端的反射部分，并且具有限定在其另一端的折射部分，扩散器套管光导体; 并将光源组装到光导体。 其中，来自光源的部分光束被反射部分朝向折射部分反射，并被折射部分折射到扩散器中; 同时，形成光源的静止光束直接传递到折射部分，并被折射部分折射到扩散器中; 结果，折射光束被扩散器中的扩散粒子扩散。