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CAS IR Grid
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长春光学精密机械与物... [5]
西安光学精密机械研究... [1]
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OAI收割 [6]
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会议论文 [5]
期刊论文 [1]
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2012 [1]
2011 [1]
2009 [1]
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2007 [2]
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Preliminary research on large-size optical polymer image transmitting fiber faceplate
期刊论文
OAI收割
acta physica sinica, 2012, 卷号: 61, 期号: 5
作者:
Wang Jin-Meng
;
Kong De-Peng
;
Wang Li-Li
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浏览/下载:18/0
  |  
提交时间:2015/07/02
large-size
polymer optical fiber faceplate
new manufacturing technology
LCD mosaic screen
Simulation and experiment of the static FTIR based on micro multi-step mirrors (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, May 24, 2011 - May 26, 2011, Beijing, China
作者:
Liang Z.-Z.
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浏览/下载:34/0
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提交时间:2013/03/25
In recent years
Fourier transform spectrometer (FTS) with small size and low mass is required in many applications with growing need for real-time and small platform spectral detection. In this paper
a micro Fourier transform infrared spectrometer (FTIR) based on spatial modulation mode was designed. This spectrometer has the advantages of high stability and simplified configuration. It also promises optical path differences (OPD) with high precision
as MOEMS technology is used in manufacturing the key components. The simulation and the experiments with regard to this FTIR configuration have been done. Firstly
the diffraction effect of the micro multi-step mirrors (MMSMs) is studied. We discuss the influence to the reversed spectrum by different mirror widths and different diffraction distances. Secondly
we simulate and analyze the influence of the source solid angle to the spectral resolution. Thirdly
we set up the theoretical model of the collimation error which is mainly from the defocus of the optical system and analyze the result caused by the collimation error. Fourthly
a new discrete Fourier transform arithmetic using least-squares cosines progression (LSCP) is proposed which can reconstruct the spectrum with nonuniform sampled signals. Finally
the MMSMs are fabricated used the MOEMS technology and the structural parameters are tested. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Study on experiment of grinding SiC mirror with fixed abrasive (EI CONFERENCE)
会议论文
OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
作者:
Wang X.
;
Zhang X.-J.
;
Wang X.
;
Wang X.
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浏览/下载:29/0
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提交时间:2013/03/25
A brand-new technology for manufacturing SiC reflecting mirror that is different from the traditional method is adopted
which is called as fixed abrasive surfacing technology. Not only the new method achieves better mirror quality with bigger diamond in diameter quickly
but also because of the fixed motion between the abrasive and workpiece and it will be good for surface finishing. During experiment
material removal characteristic which is on SiC under certain rotation speed and pressure by W7
W5
W3.5
W1.5 pellets has been tested. Through those removal curves
we come to a conclusion that the technology not only has a higher removal rate
but also has much more stability. In addition
the surface roughness experiment is mentioned. In the first stage
we achieved a mirror with surface roughness 42.758nm rms with W7 pellets. The surface roughness is descending as we change pellets with smaller diamond in diameter . At the end of experiment
a smooth surface with roughness 1.591nm rms has been achieved after using W1.5 pellets. Experiment results indicate that the technology which manufactures SiC reflecting mirror with fixed abrasive is able to replace the traditional slurry abrasive completely in certain finishing phase and also has a great foreground in application. 2009 SPIE.
The effect on tolerance distributing of an off-axis three mirror anastigmatic optical system with wavefront coding technology (EI CONFERENCE)
会议论文
OAI收割
Optical System Alignment and Tolerancing II, August 10, 2008 - August 11, 2008, San Diego, CA, United states
作者:
Yan F.
;
Zhang X.-J.
;
Yan F.
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浏览/下载:46/0
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提交时间:2013/03/25
The wavefront coding technology is known as a system-level technology which can extend the depth of focus of optical system by innovative optical design and image restoration. This technology can control misfocus related aberrations including misfocus
astigmatism
and Petzval curvature
temperature-related misfocus in digital imaging systems. It can also help optical system tolerate more residual error in optical manufacturing and alignment besides misfocus. The brief introduction of wavefront coding technology and the wavefront coded TMA system under research is presented respectively in part 1 and part 2. The "MTF similarity" is defined to describe the relationship among MTF at different position or different fields in the third part. It is also shown in this part that the MTF similarity of wavefront coded system is much higher than the normal system within a large range. In part 4 comparison between the origin system and the new system with wavefront coding technology is provided after multiple errors are introduced
from which it can be observed that the system with wavefront coding technology can tolerate much bigger error than origin system. The error tolerance is re-distributed according to a new criterion based on MTF similarity. If the MTF similarity is less than a certain value
it can be regarded that the system can tolerate the residual error. The new error tolerance is displayed and it is shown that the wavefront coding technology can also loosen the error distributing besides extended the depth of focus.
Mid-frequency surface error test with a Foucault apparatus (EI CONFERENCE)
会议论文
OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, July 8, 2007 - July 12, 2007, Chengdu, China
作者:
Li J.
;
Li J.
;
Xuan B.
;
Li J.
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浏览/下载:23/0
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提交时间:2013/03/25
Testing of mid-frequency surface error is of the first importance for fast optics
especially for large aperture aspherics. Foucault test plays a dominant role for surface error inspection before the digital interferometer age
but it seems to have faded out these days because no quantitative results turn out. However
an interferometer with high resolution CCDs is either unavailable or unaccessible in the process of manufacture. As its advantages are realized and recognized for the second time
Foucault test is going back to the stage again. A new theory of calculating the contrast of the shadow pattern of Foucault test is put forward in this paper and some modifications are discussed upon the analyses of the limitation of traditional Foucault apparatus. A paraboloidal mirror was fabricated and tested by the modified Foucault apparatus whose effect has been proved to be great. The methods of controlling mid-frequency error are described in the other paper at this conference- "Multi-mode combine manufacturing technology for large aperture aspheric mirrors"1.
Multi-mode combined manufacturing technology for large aperture aspheric mirrors (EI CONFERENCE)
会议论文
OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Large Mirrors and Telescopes, July 8, 2007 - July 12, 2007, Chengdu, China
作者:
Li J.
;
Xuan B.
;
Li J.
;
Li J.
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浏览/下载:25/0
  |  
提交时间:2013/03/25
In the field of manufacturing large aperture aspheric mirrors
mid-frequency surface error has been considered to be one of the most important factors for both manufacturing and testing technique. Mid-frequency surface error controlling the polishing process is not conventionally concerned as the same of controlling of low-frequency surface error. In order to solve such a problem
a new method - Multi-mode Combined Manufacturing (MCM) is put forward. MCM technology is useful for the control on all frequency-bands errors of optical surface and is adaptive to fast aspheric mirror especially. Based on classical manufacturing theory
principle analysis of MCM and experiments results are discussed in the paper.