公开(公告)号：US20250045941A1

公开(公告)日：2025-02-06

申请号：US18378795

申请日：2023-10-11

Applicant: NATIONAL CENTRAL UNIVERSITY

Inventor： Wen-Hsin SUN ,  Jun-Yi YU ,  Siang-Siuan TSAI ,  Guan-Wei HUANG ,  Ching-Cherng SUN

IPC: G06T7/50 ,  G06T7/20 ,  H04N23/51

Abstract: A depth camera capable of measuring the oblique velocity of an object is provided, wherein a depth camera capable of measuring the lateral velocity of an object includes a depth camera body, a first configuration file, and a lateral velocity calculation system. The lateral velocity calculation system includes: first image-processing software for recording a first depth distance at which images are taken of an object and for calculating the number of pixels corresponding to a lateral movement of the object and the duration of the lateral movement; and lateral velocity calculation software for calculating the lateral velocity of the object. The depth camera capable of measuring the oblique velocity of an object allows the lateral/longitudinal/oblique velocity of an object to be measured in real time using image-related techniques.

公开(公告)号：US20210294265A1

公开(公告)日：2021-09-23

申请号：US17078321

申请日：2020-10-23

Applicant: NATIONAL CENTRAL UNIVERSITY

Inventor： Yeh-Wei YU ,  Ching-Cherng SUN

IPC: G03H1/04 ,  G03H1/16

Abstract: A lensless holographic imaging system having a holographic optical element includes: a coherent light source for outputting a first light beam and a second light beam, wherein the first light beam irradiates a first inspection plane to form first object-diffracted light; a light modulator for modulating the second light beam into reading light having a specific wavefront; a multiplexed holographic optical element, wherein the first object-diffracted light passes through the multiplexed holographic optical element, and the reading light is input into the multiplexed holographic optical element to generate a diffracted light beam as system reference light; and an image capture device for reading at least one interference signal generated by interference between the first object-diffracted light and the system reference light. The lensless holographic imaging system has a relatively small volume and relatively high diffraction efficiency.

公开(公告)号：US20160308096A1

公开(公告)日：2016-10-20

申请号：US14735281

申请日：2015-06-10

Applicant: National Central University

Inventor： Ching-Cherng SUN ,  Tsung-Hsun YANG ,  Te-Yuan CHUNG ,  Yu-Yu CHANG ,  Shang-Fu YANG

IPC: H01L33/50 ,  H01L33/64 ,  H01L33/54

CPC classification number: H01L33/56 ,  H01L33/44 ,  H01L33/50 ,  H01L33/54

Abstract: A blue light leakage-suppressing LED structure for emitting white light includes at least one LED chip, an encapsulation element, a light output lens, and an optical fuse coating formed of a thermosensitive material; or includes at least one LED chip and an encapsulation element formed of a mixture of an encapsulation material and a thermosensitive material; or includes at least one blue LED chip, a fluorescent powder layer, an isolation region, an optical fuse layer, and a light output lens. Thanks to the hue changing property of the thermosensitive material, the LED structure can reduce the intensity of its short-wavelength light component and its overall brightness significantly before reaching the L70 threshold, after passing which the LED structure will emit excessive blue light. Thus, the user is protected from overexposure to blue light and will be reminded to replace the LED structure when the LED structure is about to malfunction.

Abstract translation: 用于发射白光的蓝色漏光抑制LED结构包括至少一个LED芯片，封装元件，光输出透镜和由热敏材料形成的光熔丝涂层; 或包括由封装材料和热敏材料的混合物形成的至少一个LED芯片和封装元件; 或包括至少一个蓝色LED芯片，荧光粉末层，隔离区域，光学熔丝层和光输出透镜。 由于热敏材料的色调变化特性，LED结构在达到L70阈值后，LED结构将会发出过多的蓝光，从而可以显着降低其短波长光分量及其整体亮度的强度。 因此，防止用户过度曝光到蓝光，并且当LED结构即将发生故障时，将提醒用户更换LED结构。

公开(公告)号：US20150369695A1

公开(公告)日：2015-12-24

申请号：US14518537

申请日：2014-10-20

Applicant: NATIONAL CENTRAL UNIVERSITY

Inventor： Ching-Cherng SUN ,  Yeh-Wei YU ,  Ting-Wei LIN ,  Che-Chu LIN

IPC: G01M11/00 ,  G01J3/28 ,  G01J1/42

CPC classification number: G01J3/28 ,  G01J1/0403 ,  G01J1/0437 ,  G01J1/0477 ,  G01J1/4257 ,  G01J3/0229 ,  G01J2001/4247 ,  G01J2001/4252 ,  G01J2001/448 ,  G01M11/00

Abstract: A detecting system for detecting an under-test light of an under-test object includes a light spatial distribution unit, a chromatic-dispersion light-splitting unit and a detecting unit. The light spatial distribution unit is disposed on a side of the under-test object to receive the under-test light and form a plurality of point light sources. The chromatic-dispersion light-splitting unit is disposed on a side of the light spatial distribution unit to receive the point light sources and produce a light-splitting signal. The detecting unit is disposed on a side of the chromatic-dispersion light-splitting unit to receive the light-splitting signal and produce an optical field distribution of the under-test light.

Abstract translation: 用于检测被测试物体的被测试光的检测系统包括光空间分布单元，色散分光单元和检测单元。 光空间分配单元设置在被测试对象的一侧以接收未被测试的光并形成多个点光源。 色散分光单元设置在光空间分配单元的一侧以接收点光源并产生分光信号。 检测单元设置在色散分光单元的一侧以接收分光信号并产生未被测试的光的光场分布。

公开(公告)号：US20250138283A1

公开(公告)日：2025-05-01

申请号：US18402360

申请日：2024-01-02

Applicant: NATIONAL CENTRAL UNIVERSITY

Inventor： Ying-Shun SHIU ,  Guan-Wei HUANG ,  Jun-Yi YU ,  Wen-Hsin SUN ,  Wei-Chia SU ,  Wen-Kai LIN ,  Shao-Kui ZHOU ,  Yuan-Yan LIANG ,  Ching-Cherng SUN

IPC: G02B13/00 ,  G02B9/34

Abstract: A coupled lens structure for a mixed/augmented reality system includes: a lens tube; a first lens with a first aspherical light input surface coupled to a lens-tube light input surface; a second lens with a second spherical light input surface optically coupled to a first spherical light output surface of the first lens; a third lens with a third spherical light input surface optically coupled to a second aspherical light output surface of the second lens; and a fourth lens with a fourth spherical light input surface optically coupled to a third spherical light output surface of the third lens and a fourth spherical light output surface coupled to a lens-tube light output surface. The coupled lens structure has volume of 2.1-3 cc, a lens-tube outer diameter of 12-13.5 mm, and a full angle of view not greater than 30 degrees, featuring an effective reduction in volume and weight.

公开(公告)号：US20200035013A1

公开(公告)日：2020-01-30

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：US20170276322A1

公开(公告)日：2017-09-28

申请号：US15153897

申请日：2016-05-13

Applicant: NATIONAL CENTRAL UNIVERSITY

Inventor： Ching-Cherng SUN ,  Tsung-Hsun YANG

IPC: F21V9/16 ,  F21V7/04 ,  F21V29/74

CPC classification number: F21V9/30 ,  F21V7/04 ,  F21V7/045 ,  F21V29/74 ,  F21V29/76 ,  F21Y2113/00

Abstract: The present invention discloses a laser stimulated white light lighting system, it includes a hemispherical reflector, a light-permeable board, a wavelength conversion layer, a reflective layer and plural heat-radiating structures, wherein the laser light emitted by a laser light source passes through a first light entrance hole of the hemispherical reflector and subsequently through the wavelength conversion layer to produce white light. With the implementation of the present invention, complex production process or equipment is not required thus reduce the system cost, the lighting system is capable of accurately outputting white light and promoting photon recycling effect to raise illumination efficiency. With the addition of a second light entrance hole, wavelength-division or angular division multiplexing can be carried out to raise the intensity of the output white light without increasing the etendue of the source light, thereby widening the range of application of the lighting system.

公开(公告)号：US20160343397A1

公开(公告)日：2016-11-24

申请号：US15014027

申请日：2016-02-03

Applicant: National Central University

Inventor： Ching-Cherng SUN ,  Yeh-Wei YU

IPC: G11B7/1353 ,  G11B7/1395 ,  G11B7/1374

CPC classification number: G11B7/1395 ,  G11B7/0037 ,  G11B7/0065 ,  G11B7/125 ,  G11B7/1356 ,  G11B7/1362 ,  G11B7/1381 ,  G11B2007/0009 ,  G11B2007/00653

Abstract: A holographic light-emitting module includes a light source module and a light shape control module. The light source module is configured to provide a signal light beam and a reference light beam, in which polarizations of the signal light beam and the reference light beam are orthogonal. The light shape control module is configured to receive the signal light beam and the reference light beam propagated from the light source module, in which the signal light beam and the reference light beam are modulated and emitted by the light shape control module The reference light beam is surrounded by the signal light beam and located at a center of the signal light beam, and the signal light beam and the reference light beam are partially overlapped.

Abstract translation: 全息发光模块包括光源模块和光形状控制模块。 光源模块被配置为提供信号光束和参考光束，其中信号光束和参考光束的偏振正交。 光形控制模块被配置为接收信号光束和从光源模块传播的参考光束，其中信号光束和参考光束被光形控制模块调制和发射。参考光束 被信号光束包围并位于信号光束的中心，信号光束和参考光束部分地重叠。

公开(公告)号：US20160225401A1

公开(公告)日：2016-08-04

申请号：US15011627

申请日：2016-01-31

Applicant: National Central University

Inventor： Yeh-Wei YU ,  Ching-Cherng SUN

IPC: G11B7/24085 ,  G11B7/0065

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：US20240319483A1

公开(公告)日：2024-09-26

申请号：US18365203

申请日：2023-08-03

Applicant: National Central University

Inventor： Wen-Hsin SUN ,  Wei-Chia SU ,  Jun-Yi YU ,  Ching-Cherng SUN

IPC: G02B13/16 ,  G02B5/32 ,  G02B27/01

CPC classification number: G02B13/16 ,  G02B5/32 ,  G02B27/0172 ,  G02B2027/0107 ,  G02B2027/0174

Abstract: A volume holographic optical element projection system includes a projection lens, a polarizing beam splitter, a liquid crystal on silicon panel, and a volume holographic optical element. The projection lens includes a light incident side, a light emitting side, and nine lenses. A f-number of the projection lens is in a range from 1 to 3. The f-number is a value derived from dividing the focal length by the entrance pupil diameter. The liquid crystal on silicon panel includes a protection glass. The polarizing beam splitter is located between the light incident side of the projection lens and the protection glass of the liquid crystal on silicon panel. The light emitting side of the projection lens faces the volume holographic optical element.