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CAS IR Grid
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长春光学精密机械与物... [5]
高能物理研究所 [2]
合肥物质科学研究院 [1]
近代物理研究所 [1]
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OAI收割 [8]
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会议论文 [5]
期刊论文 [4]
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多角度偏振成像仪偏振通道响应非一致性测量方法
期刊论文
OAI收割
光学学报, 2020, 卷号: 40
作者:
翁建文
;
袁银麟
;
郑小兵
;
康晴
;
涂碧海
  |  
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2020/10/26
remote sensing
polarization channel
wide field-of-view
response non-uniformity
sectional field-ofview
measurement uncertainty
遥感
偏振通道
宽视场
响应非一致性
分视场
测量不确定度
Electromagnetic design study of a 20-t cos-theta 2-in-1 dipole magnet for high-energy accelerators
期刊论文
iSwitch采集
Ieee transactions on applied superconductivity, 2017, 卷号: 27, 期号: 4, 页码: 5
作者:
Wang, Chengtao
;
Zhang, Kai
;
Xu, Qingjin
;
Zhu, Zian
;
Wang, Yingzhe
收藏
  |  
浏览/下载:46/0
  |  
提交时间:2019/04/23
Cos-theta configuration
High field
Sppc
Super-conducting dipole magnet
Uniformity of field
Electromagnetic Design Study of a 20-T Cos-Theta 2-in-1 Dipole Magnet for High-Energy Accelerators
期刊论文
OAI收割
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2017, 卷号: 27, 期号: 4, 页码: 4000905
作者:
Wang CT(王呈涛)
;
Zhang K(张恺)
;
Xu QJ(徐庆金)
;
Zhu ZA(朱自安)
;
Wang YZ(王莹哲)
  |  
收藏
  |  
浏览/下载:38/0
  |  
提交时间:2019/08/27
Cos-theta configuration
high field
SppC
super-conducting dipole magnet
uniformity of field
Correction of the non-uniformity for multi-TDICCD mosaic camera on FPGA (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on E-Product E-Service and E-Entertainment, ICEEE2010, November 7, 2010 - November 9, 2010, Henan, China
Zhu H.
;
Xue X.
;
Ma T.
;
Li H.
;
Si G.
;
Guo Y.
收藏
  |  
浏览/下载:42/0
  |  
提交时间:2013/03/25
To solve the non-uniformity problem of multi Time Delay Integral Charge Couple Device (TDICCD) mosaic camera
several common non-uniformity correction methods are discussed. Secondly
a non-uniformity correction algorithm is proposed and implemented on Field-Programmable Gate Array (FPGA) platform. Firstly
the correction algorithm is designed. Finally
the generation and definition of non-uniformity are introduced
considering the fix-point processing ability of FPGA
the correction algorithm is optimized properly
and implemented on FPGA. The experimental results indicate that the non-uniformity can be decreased from 8.3%to 2.0% in 1s for 3-TDICCD mosaic camera's images with the proposed correction algorithm at 96TDI stage
proving that this correction algorithm is of high real-time performance
good practicality and satisfies the requirements of the target system. 2010 IEEE.
Study on chromaticity balance for LED exposure system (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2007 - Laser, Ultraviolet, and Terahertz Technology, September 9, 2007 - September 12, 2007, Beijing, China
作者:
Meng Z.
;
Meng Z.
收藏
  |  
浏览/下载:16/0
  |  
提交时间:2013/03/25
A standard white light compounding algorithm based on combination of CCD illumination acquisition with computer control is presented for LEDs. The computer adjust and control the working current of LEDs by using three-color LEDs illumination acquired by CCD camera
achieved chromaticity coordinates error between compounded white light and standard white light D65 less than the threshold beforehand setted by this technique
then acquiring needed standard white light. Compounded white light meet the chromaticity error demand that is able to be changed
at the same time the CCD illumination acquisition system is eliminated. The proposed algorithm improved the light energy utilization efficiency of LED
and eliminated the offset of central wavelength and chromaticity coordinates due to work current change of LEDs. Experimental results show that the proposed algorithm achieved lesser chromaticity error uv=0.001 relative to standard white light D65
enhanced chromaticity uniformity of illumination field.
Study on chroma balance based on grating spectrometer for LED (EI CONFERENCE)
会议论文
OAI收割
Light-Emitting Diode Materials and Devices II, November 12, 2007 - November 14, 2007, Beijing, China
作者:
Meng Z.
;
Meng Z.
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2013/03/25
A standard white light compounding algorithm based on combination of choma coordinates acquisition system with computer working current control system is presented for three-color LED. The chroma coordinates acquisition system consist of grating spectrometer and integrating sphere. The computer adjust and control the working current of three-color LED
then achieved chroma coordinates error between the compounded white light and standard white light D65
until the chroma coordinates is less than the threshold beforehand set by this technique. The compounded white light meet the chroma error demanded that is able to be changed
at the same time the chroma coordinates acquisition system and the working current control system are eliminated. The proposed algorithm the offset of central wavelength and the change of chroma coordinates due to working current variety for LEDs. Experimental results show that the proposed algorithm achieved lesser chroma error uv=0.001 relative to standard white light D65
enhanced chroma uniformity of illumination field.
Test and analysis of uniform magnetic fields for imaging of electrons produced in ion-atom collisions
期刊论文
OAI收割
ACTA PHYSICA SINICA, 2007, 卷号: 56, 期号: 7, 页码: 3637-3641
作者:
Feng Wen-Tian
;
Ma Xin-Wen
;
Lju Hui-Ping
;
Chen Lan-Fang
;
Li Bin
  |  
收藏
  |  
浏览/下载:57/0
  |  
提交时间:2010/10/29
complex Helmholtz coils
magnetic field distribution
uniformity of magnetic field
Design of an improved data signal timing for an amorphous silicon active-matrix organic LED display (EI CONFERENCE)
会议论文
OAI收割
ICO20: Display Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
作者:
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2013/03/25
The most critical issue in the design of an active matrix organic light emitting diode (AM-OLED) display pixel is the pixel to the pixel luminance uniformity. By substituting four-thin film transistor (TFT) pixel circuit for two-TFT pixel circuit
the luminous uniformity has great improved
but it requires more components than the two-TFT pixel circuit. There are some barriers needed to resolve to utilize hydrogenated amorphous silicon transistor to lit OLED
such as low field effect mobility
low output current and threshold voltage shift. In this article
a two-a-Si:H TFT pixel circuit was designed
which consisted of one named switching TFT and the other named driving TFT. The driving TFT gate line structure modified and a data signal timing improved were reported. The modified driving TFT can provide enough current about 30 microampere to lit OLED and the novel data signal timing can provide a constant current to OLED by restraining the driving TFT threshold voltage variation. In the novel data signal timing
the control signals to the driving TFT gate include a data signal and a reverse data signal. The signals alteration is performed either at a frame rate or at a line rate. By experiments
the driving TFT output current value is plotted as a function of the time in different reversed voltage value. When the magnitude of the positive data signal and the negative data signal is equal
the variety of Vth
is smallest
about 1.28V after a fixed stressing time of 1.33104min
which shows the novel data signal timing can improved the driving TFT output-input current stability.
Color video display technique based on diode-pumped solid state lasers (EI CONFERENCE)
会议论文
OAI收割
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Liu H.
;
Wei Z.-L.
;
Liu H.
;
Liu H.
;
Kang Y.-S.
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2013/03/25
This paper will introduce the principle and techniques to realize laser color video display. The characteristics of techniques and bottleneck of restricting the development are analyzed. A novel technical approach to eliminating the laser interference
improving the uniformity of optical field
transforming the chromaticity and extending the virtual color is proposed. The principle device of laser display system has been produced on the basis of the blue
green and red diode-pumped solid state lasers. The wavelengths of the blue
green and red are respectively 473nm
532nm and 671 nm. The output powers of the lasers are 1.3W
0.32W and 3.5W respectively.