{"title":"Fabrication of optical flat mirror with nanometer surface error","authors":"张. Z. Feng","doi":"10.3788/CO.20140704.0616","DOIUrl":"https://doi.org/10.3788/CO.20140704.0616","url":null,"abstract":"In order to polish optical flat mirror with nanometer surface error efficiently,a consisting of new polishing technology traditional continuous polishing( CP) and advanced ion beam figuring( IBF) is presented in this paper. The polishing principles of CP and IBF are introduced. The polishing experiment and material removal function of IBF are studied. A Ф150 mm optical flat mirror is polished by the combined polishing technology. After polishing,the surface error and roughness of the flat mirror are 1. 217 nm RMS and0. 506 nm RMS,respectively. The experiment results indicate that the combined polishing technology is effective for polishing optical flat mirror with nanometer surface error.","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":"25 1","pages":"616-621"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89459547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
秦. Q. Hua, 冯东太 Feng Dong-tai, 葛硕硕 Ge Shuo-shuo, 王. W. Yong
{"title":"Optical design of build-up aspherical solar concentrating mirror","authors":"秦. Q. Hua, 冯东太 Feng Dong-tai, 葛硕硕 Ge Shuo-shuo, 王. W. Yong","doi":"10.3788/CO.20140705.0844","DOIUrl":"https://doi.org/10.3788/CO.20140705.0844","url":null,"abstract":"In this paper,a build-up aspherical solar concentrating mirror and its design method are presented.It is composed of 38 pieces of revolution surfaces,and each piece of revolution surface is the part of the aspheric surface defined by a set of specific coefficients C,a2,a4,a6,a8,a10. According to the even aspherical equation and the law of reflection in vector form,the relationship between the direction vectors of rays of light reflected from the inner wall of aspheric surface and the coefficients of an aspherical equation,C,a2,a4,a6,a8,a10,has been derived. By appropriately choosing these aspherical coefficients,namely,appropriately adjusting an aspherical surface type,the reflected light beam can have specific direction vectors,which can make the sunbeams incident on an aspherical inner wall focus on a particular area and form a small spot. Each group of specific coefficients is obtained by using particle swarm optimization algorithm. The focusing effect of the solar concentrating mirror with the specific coefficients is demonstrated by using computer simulations and proved experimentally. The theoretical compression ratio for this concentrating mirror is 330∶ 1. The focused spot can be used as a high temperature heat source and the concentrating mirror can be used in a solar heating device.","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":"8 1","pages":"844-854"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72757074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Subaperture stitching interferometry based on detection of marker center","authors":"张. Z. Min, 隋永新 Sui Yongxin, 杨怀江 Yang Huai-jiang","doi":"10.3788/CO.20140705.0830","DOIUrl":"https://doi.org/10.3788/CO.20140705.0830","url":null,"abstract":"The stitching interferometer systems with larger relative movement will show a significantly lower positioning accuracy of subapertures. As a consequence a stitching method based on detection of artificial circular mark center to find the necessary translation between two neighborly subapertures is implemented. Firstly,we take coordinates of mark centers as the marks' coordinates by which the translation is computed. Then all the subaperture data are unified into the same reference by homogeneous coordinate transformation and the full aperture phase are stitched by using mechanical system error compensation algorithm. A subaperture stitching process for a 468 mm flat mirror was carried out including surface accuracy tests during the polishing. In this process,subaperture stitching test offered the surface data precisely for polishing,which ensured the surfaceerror converged quickly to a final RMS of 35 nm. The experimental results show that the method relaxes the precision requirement for subaperture location and can get the full aperture phase for large optical element correctly.","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":"5 1","pages":"830-836"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91053611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optical system design of simulator for autonomous landing on planets based on optical navigation","authors":"唐杰 Tang Jie, 蔡盛 Cai Sheng, 乔彦峰 Qiao Yan-feng","doi":"10.3788/co.20140706.0962","DOIUrl":"https://doi.org/10.3788/co.20140706.0962","url":null,"abstract":"","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":"44 16","pages":"962-968"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91505385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
徐艳 Xu Yan, 谢冀江 Xie Ji-jiang, 李殿军 Li Dianjun, 杨贵龙 Yang Guilong, 陈. C. Fei
{"title":"Q-switch techniques of CO_2 laser","authors":"徐艳 Xu Yan, 谢冀江 Xie Ji-jiang, 李殿军 Li Dianjun, 杨贵龙 Yang Guilong, 陈. C. Fei","doi":"10.3788/co.20140702.0196","DOIUrl":"https://doi.org/10.3788/co.20140702.0196","url":null,"abstract":"Short-pulse CO2laser has significant applications in many fields such as laser ranging,environmental detection,space communication and laser interaction with matter.Q-switch techniques are important approach for generating short-pulse CO2laser and have been extensively studied by researchers.Main Q-switch techniques for CO2laser are reviewed in this paper,including mechanical Q-switch,electro-optically Qswitch,acousto-optically Q-switch,passively Q-switch and double Q-switch.The key technical points and problems of each Q-switch technique are summarized and analyzed.In addition,the tendencies of Q-switch techniques for CO2laser are proposed.","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":"10 1","pages":"196-207"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77764313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development and status of on-line spectrophotometer","authors":"刘怡轩 Liu Yi-xuan, 颜昌翔 Yan Chang-xiang","doi":"10.3788/CO.20140705.0712","DOIUrl":"https://doi.org/10.3788/CO.20140705.0712","url":null,"abstract":"The principle of color measurement is introduced,and the characteristics requirements and technical difficulties of on-line color measurement are summarized. The development process and the current state of the art of on-line color measurement technology are also presented. The specifications,applications and system structures of several advanced on-line spectrophotometes abroad are presented in detail. The characteristics and advantages of every instrument are highlighted. The development trend of on-line spectrophotometer is discussed from two aspects of technical perspective and application requirements in this paper,which will provide a reference for study on the development of on-line spectrophotometer.","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":"39 5 1","pages":"712-722"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78392636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mirror surface figure evaluation based on power spectral density","authors":"杨. Y. Fei, 安其昌 An Qi-chang, 张景旭 Zhang Jing-xu","doi":"10.3788/CO.20140701.0156","DOIUrl":"https://doi.org/10.3788/CO.20140701.0156","url":null,"abstract":"Firstly,Power Spectral Density( PSD) is proposed for mirror surface figure evaluation in the large aperture telescope system as for some difficulties for Root Mean Square( RMS) in the evaluation of large scale variety and disadvantage of robust for rigid body displacement. Then,the decomposition arithmetic of PSD is analyzed with Zernike polynomial,and Zernike polynomial spectrum energy distribution is analyzed in some order. The algorithm has been used in the surface figure evaluation of a Φ 500 mm mirror,and energy distribution in the frequency domain of the actual mirror surface has been obtained. The experimental results indicate that the evaluation of PSD is more practical when used in large aperture mirror for their manufacture and testing and for the error budget allocation in telescope system. Finally,a kind of noncorrelative sub-aperture stitching method for evaluation of reflective mirror shape based on PSD is proposed which can be used in the large aperture telescope.","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":"69 1","pages":"156-162"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86441862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Improvement on fabrication technology of metallic mesh based on ZnS","authors":"陈. C. Yun, 李艳茹 Li Yan-ru, 张红胜 Zhang Hong-sheng","doi":"10.3788/CO.20140701.0131","DOIUrl":"https://doi.org/10.3788/CO.20140701.0131","url":null,"abstract":"In order to fabricate metallic meshes based on ZnS which can shield electromagnetic wave,a new type of photolithography copy technology process is adopted,in which photoresist is coated firstly and then plated in vacuum machine. But the color of polycrystalline ZnS resembles that of photo-resist,it is hard to estimate the developing degree of meshes during the process of making metallic meshes,which affects the preparation of metallic meshes film in the process of vacuum plating. A new method by plating a transition film is proposed,in which the processes including vacuum coating,spin-coating,developing,etching,vacuum coating,removing,etching are adopted combining the fabrication technology of metallic meshes. The testing results indicate that the metallic meshes with the line width of 8 μm and the line period of 400 μm are fabricated successfully. With this technology,the yield of metallic meshes is improved up to 90%.","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":"1 1","pages":"131-136"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89705666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Design of wide-angle lens for 8 mega-pixel mobile phone camera","authors":"李. L. Hang, 颜昌翔 Yan Chang-xiang","doi":"10.3788/CO.20140703.0456","DOIUrl":"https://doi.org/10.3788/CO.20140703.0456","url":null,"abstract":"In order to meet the requirement of mobile phone market on the wide-angle and high-pixel mobile phone lens,a wide-angle and 8 mega-pixel mobile phone lens is designed. The mobile phone lens are composed of 4 plastic aspheric lens and an IR filter,and the F-number is 2. 45 and FOV is 80. The sensor OV8850 made by Omnivision with 8 mega pixels,maximum resolution of 3 280 pixel × 2 464 pixel,pixel size of 1. 1 μm,and Nyquist sampling frequency of 454 lp / mm. The design result shows that the MTF value is larger than 0. 48 at 1 /2 Nyquist sampling frequency in the 0. 7 fields of view( FOV),and the MTF of FOV is larger than 0. 38. The MTF value in 0. 7 FOV is larger than 0. 15 at Nyquist sampling frequency and the distortion is less than 2%.","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":"15 1","pages":"456-461"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86288146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Error correction of spectral response characteristic of grating spectrometer","authors":"施建华 Shi Jian-hua, 伏思华 Fu Si-hua, 谢文科 Xie Wen-ke","doi":"10.3788/CO.20140703.0483","DOIUrl":"https://doi.org/10.3788/CO.20140703.0483","url":null,"abstract":"Aiming at the big measuring error from grating spectrometer caused by the devices' spectral characterics,an error correction method is brought forward and validated. Firstly,the grating spectrometer's principle is analyzed deeply and the theoretical model of error correction is built. Then,the spectral characteristics of key devices,such as grating,detector,mirror etc.,are studied and the algorithm of numerical extraction is brought forward to acquire the value of each point on the spectral curve. Finally,the theoretical model and the method of numerical algorithm are used to correct the bromine-tungsten lamp's spectrum which is obtained by the grating spectrometer. The result of the experiment shows that the mean error of the numerical extraction algorithm is only 0. 39%,and the corrected spectrum is very close to the standard spectrum,which certifies that the correction method brought forward in this paper can eliminate the errors brought by the devices' spectral characteristics.","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":"1 1","pages":"483-490"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88788605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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