Pub Date : 2014-01-01DOI: 10.3788/CO.20140706.0969
王. W. Jing, 崔恩坤 Cui En-kun
{"title":"Design of large FOV curved artificial compound eye with freeform lens","authors":"王. W. Jing, 崔恩坤 Cui En-kun","doi":"10.3788/CO.20140706.0969","DOIUrl":"https://doi.org/10.3788/CO.20140706.0969","url":null,"abstract":"","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77471086","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}
Pub Date : 2014-01-01DOI: 10.3788/CO.20140702.0307
吕家国 Lyu Jia-Guo, 蒋晓瑜 Jiang Xiaoyu, 张鹏炜 Zhang Peng-wei, 胡磊 Hu Lei
In this paper,a hardware design method of binocular vision system is proposed for the pose tracker of surgery.The working principle of the system components and the needs of the surgical navigation are analyzed firstly.Then according to the situation of market supply,each component is ascertained,and the system' s structure is affirmed based on the binocular vision positioning principle.At last,a simulation experiment of surgical navigation is developed by prototype of binocular vision system.The experimental results show that with the aid of this system,the layout of the surgery can be carried out.At the same time,the positioning precision for the implant can reach 2 mm,which can satisfy the requirement of clinical application.
{"title":"Hardware design and implementation of binocular vision system for a medical robot","authors":"吕家国 Lyu Jia-Guo, 蒋晓瑜 Jiang Xiaoyu, 张鹏炜 Zhang Peng-wei, 胡磊 Hu Lei","doi":"10.3788/CO.20140702.0307","DOIUrl":"https://doi.org/10.3788/CO.20140702.0307","url":null,"abstract":"In this paper,a hardware design method of binocular vision system is proposed for the pose tracker of surgery.The working principle of the system components and the needs of the surgical navigation are analyzed firstly.Then according to the situation of market supply,each component is ascertained,and the system' s structure is affirmed based on the binocular vision positioning principle.At last,a simulation experiment of surgical navigation is developed by prototype of binocular vision system.The experimental results show that with the aid of this system,the layout of the surgery can be carried out.At the same time,the positioning precision for the implant can reach 2 mm,which can satisfy the requirement of clinical application.","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76208781","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}
Pub Date : 2014-01-01DOI: 10.3788/CO.20140706.0942
张学明 Zhang Xue-ming
{"title":"Optical design of laser receiving and color TV confocal-window","authors":"张学明 Zhang Xue-ming","doi":"10.3788/CO.20140706.0942","DOIUrl":"https://doi.org/10.3788/CO.20140706.0942","url":null,"abstract":"","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80054589","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}
Pub Date : 2014-01-01DOI: 10.3788/CO.20140705.0844
秦. Q. Hua, 冯东太 Feng Dong-tai, 葛硕硕 Ge Shuo-shuo, 王. W. Yong
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.
{"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":null,"pages":null},"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}
Pub Date : 2014-01-01DOI: 10.3788/co.20140706.0962
唐杰 Tang Jie, 蔡盛 Cai Sheng, 乔彦峰 Qiao Yan-feng
{"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":null,"pages":null},"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}
Pub Date : 2014-01-01DOI: 10.3788/CO.20140701.0131
陈. C. Yun, 李艳茹 Li Yan-ru, 张红胜 Zhang Hong-sheng
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%.
{"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":null,"pages":null},"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}
Pub Date : 2014-01-01DOI: 10.3788/CO.20140703.0483
施建华 Shi Jian-hua, 伏思华 Fu Si-hua, 谢文科 Xie Wen-ke
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.
{"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":null,"pages":null},"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}
Pub Date : 2014-01-01DOI: 10.3788/CO.20140705.0712
刘怡轩 Liu Yi-xuan, 颜昌翔 Yan Chang-xiang
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.
{"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":null,"pages":null},"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}
Pub Date : 2014-01-01DOI: 10.3788/CO.20140703.0456
李. L. Hang, 颜昌翔 Yan Chang-xiang
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%.
{"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":null,"pages":null},"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}
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