发布求助
文献互助 智能选刊 最新文献

Marketplace for Industrial Lasers最新文献

筛选
英文 中文
Optimization of the imaging properties of image tubes 成像管成像性能的优化
Marketplace for Industrial Lasers Pub Date : 1990-07-01 DOI: 10.1117/12.2294802
V. Jares
{"title":"Optimization of the imaging properties of image tubes","authors":"V. Jares","doi":"10.1117/12.2294802","DOIUrl":"https://doi.org/10.1117/12.2294802","url":null,"abstract":"The electron lens sections of image converters and image intensifiers are genera- lly designed using a computer model. The model developed at TESLA-Vacuum Engineering El,Ictron Optics Laboratories has proved very accurate in predicting the major lens cha- racteristics, for example position and shape of the image surface, magnification, dis- tortion and resolution. An analytical approach to the numerical calculation of the effect of curvature of the photocathode on imaging parameters of the triode electrode system is outlined. A semi-analytic relations is derived to analyse the imaging pro- perties and their dependence on certain geometric and voltage tube parameters.","PeriodicalId":322470,"journal":{"name":"Marketplace for Industrial Lasers","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130491099","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}
引用次数: 0
An automated microscope system for cell image processing 用于细胞图像处理的自动显微镜系统
Marketplace for Industrial Lasers Pub Date : 1990-07-01 DOI: 10.1117/12.2294849
Yimo Zhang
{"title":"An automated microscope system for cell image processing","authors":"Yimo Zhang","doi":"10.1117/12.2294849","DOIUrl":"https://doi.org/10.1117/12.2294849","url":null,"abstract":"The screening out of cells specially abnormal cells by microscope is a very useful method for cytology diagnosing. Since inspecting pathological changes of cells by microscope is very slow, thereby study a new auto-microscope system with function of image processing is very necessary. This system has the following functions: 1) the microscope stage should be scanned in x and y directions, and a step distance of scanning is corresponded to a field of view of the microscope. 2) For autofocusing, first the micro-structure is low contrast, otherwise focus depth is very small. Therefore, autofocusing for biological microscope is different to common industrial microscope with low time and high contrast. 3) The microscope must possess image processing functions to recognize and screen out cells. 4) The system possesses function for auto-photograph. Because the field of view of the microscope is very small, if all fields of view are photographed one by one, then several hundred thousands or several millions fields of view will be photographed. But there is no target in most of fields of view, i. e. , only a few is useful, so, it is necessary to screen out and auto- photograph them automatically. On the other hand, transmissivity of different targets is different, so the exposure time must be adjusted automatically. Besides that, this kind of camera must hold sufficient film, i. e. a large cassette must be disigned. The micrscope system with these functions is a complex auto-controlling system.","PeriodicalId":322470,"journal":{"name":"Marketplace for Industrial Lasers","volume":"1230 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130639934","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}
引用次数: 2
Phase conjugation in doped bismuith germanate crystals 掺杂铋锗酸盐晶体的相共轭
Marketplace for Industrial Lasers Pub Date : 1990-07-01 DOI: 10.1117/12.2294656
Minghua Li
{"title":"Phase conjugation in doped bismuith germanate crystals","authors":"Minghua Li","doi":"10.1117/12.2294656","DOIUrl":"https://doi.org/10.1117/12.2294656","url":null,"abstract":"The doped bismuth germanate (BGO) crystals have excellent phase conjugate effect. This effect can be observed in pure BGO crystal under an applied electric field. But in doped BGO, electric field doesn't necessary. The crystals were grown by czochralski method.","PeriodicalId":322470,"journal":{"name":"Marketplace for Industrial Lasers","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116934340","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}
引用次数: 0
Optoelectronic detection and analysis of ultraweak biophoton emission carrying new bio-information 携带新生物信息的超弱生物光子发射的光电检测与分析
Marketplace for Industrial Lasers Pub Date : 1990-07-01 DOI: 10.1117/12.2294678
H. Inaba
{"title":"Optoelectronic detection and analysis of ultraweak biophoton emission carrying new bio-information","authors":"H. Inaba","doi":"10.1117/12.2294678","DOIUrl":"https://doi.org/10.1117/12.2294678","url":null,"abstract":"The phenomenon of ultraweak light emission which is closely related to the process of life and biological activities has recently been recognized. Called as biophoton, this phenomenon has been detected in various plant tissues such as the subroots of onions, the stem of wheat, beans arid seeds, and animals organs like liver, heart, kidneys, lungs and brain, and vital tissues such as muscles and neurons as well as whole blood, blood plasma, membranes, bacteria, yeast, polymorphonuclear leukocytes, monocytes and macrophages, malignant tumor tissues and cells, and other cells. Thanks to recent advancement made in optical electronics, a development base has been established for the quantitative measurement of ultraweak light undetectable by the human eye and for information analysis of its various features. _","PeriodicalId":322470,"journal":{"name":"Marketplace for Industrial Lasers","volume":"49 23","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132974329","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}
引用次数: 0
Metal ceramic sealed mini-tea CO2 laser 金属陶瓷密封微型茶叶CO2激光器
Marketplace for Industrial Lasers Pub Date : 1990-07-01 DOI: 10.1117/12.2294754
Qianhua Qu
{"title":"Metal ceramic sealed mini-tea CO2 laser","authors":"Qianhua Qu","doi":"10.1117/12.2294754","DOIUrl":"https://doi.org/10.1117/12.2294754","url":null,"abstract":"In this report, the selection of parameters for mini-TEA CO2 laser is theoretically analysed. A practical complete metalic-ceramic sealed off mini-TEA CO2 laser has been constructed.The technique of metal solder is adopted to seal the window of the laser component. The output of principle mode is greater than 20 mj with a operating life longer than 106 times, pulse width smaller than 50ns, and shelf life longer than 10 years.","PeriodicalId":322470,"journal":{"name":"Marketplace for Industrial Lasers","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131751409","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}
引用次数: 0
Research and developments in the area of Optoelectronics in Optical Engineering Department at Zhejiang University 浙江大学光学工程系光电子领域的研究与发展
Marketplace for Industrial Lasers Pub Date : 1990-07-01 DOI: 10.1117/12.2294670
Jinfa Tang
{"title":"Research and developments in the area of Optoelectronics in Optical Engineering Department at Zhejiang University","authors":"Jinfa Tang","doi":"10.1117/12.2294670","DOIUrl":"https://doi.org/10.1117/12.2294670","url":null,"abstract":"This comprehensive review presents the research work carried out in Optical Engineering Department at Zhejiang University on lasers and non-linear optics; fiber optic sensors; scanning photothermal deflection spectroscopy; multilayered magneto-optical recording media; liquid crystal tight valves using amorphous silicon photoconductor ; and nonliear interference filters.","PeriodicalId":322470,"journal":{"name":"Marketplace for Industrial Lasers","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127704945","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}
引用次数: 0
High-accuracy photoelectric measurement of length 高精度光电测量长度
Marketplace for Industrial Lasers Pub Date : 1990-07-01 DOI: 10.1117/12.2294701
Yongchai Yang
{"title":"High-accuracy photoelectric measurement of length","authors":"Yongchai Yang","doi":"10.1117/12.2294701","DOIUrl":"https://doi.org/10.1117/12.2294701","url":null,"abstract":"Photoelectric automatic measurement of lenghth on a belt conveyer has a lot of advantages, such as cheap cost, long lifespan, simple construction and convenient operation, etc. , which make it develop fast and apply widely. However, it is easily disturbed by many factors so that its precision is not ideal. How to improve the precision is one of the problems which need to resolve imperatively at present. This paper will discuss the reasons why the precision is not ideal and put forward a series of measures to correct the errors. At last, a schematic diagram to realize high-accuracy measurement of length are given.","PeriodicalId":322470,"journal":{"name":"Marketplace for Industrial Lasers","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127772500","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}
引用次数: 0
A comprehensive computer-vision system for measuring the surface of large 3D objects 用于测量大型三维物体表面的综合计算机视觉系统
Marketplace for Industrial Lasers Pub Date : 1990-07-01 DOI: 10.1117/12.2294858
S. Zhao
{"title":"A comprehensive computer-vision system for measuring the surface of large 3D objects","authors":"S. Zhao","doi":"10.1117/12.2294858","DOIUrl":"https://doi.org/10.1117/12.2294858","url":null,"abstract":"By the use of moire topogarphy method, we developed a comprehensive computer-vision system (CCVS) and firstly put the system into practical industrial use to measure the surface of large 3-D objects, such as the surface of vane of hydraulic turbine. The dimensions of the vane are about 6m X 5m X 3m . In this paper, with the help of Fourier optics theoritical analysis of the forma- tion of moire fringes is given and CCVS is presented.","PeriodicalId":322470,"journal":{"name":"Marketplace for Industrial Lasers","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121036764","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}
引用次数: 0
An analysis of temperature distribution of heat flash 热闪热的温度分布分析
Marketplace for Industrial Lasers Pub Date : 1990-07-01 DOI: 10.1117/12.2294852
Yuwen Wang
{"title":"An analysis of temperature distribution of heat flash","authors":"Yuwen Wang","doi":"10.1117/12.2294852","DOIUrl":"https://doi.org/10.1117/12.2294852","url":null,"abstract":"This paper is to apply the infrared thermography and image processing technique to improve the measured precision for heat flash. In the laboratory and the shooting range,pass through more than hundred times projectile tests,the temperature distribution of heat flash was monited by infrared thermography using the gray thermogram, color thermogram and thermal profile.It is obvious that temperature distribution of heat flash may be measured and calculated to a new lever of reliability previously unobtainable.","PeriodicalId":322470,"journal":{"name":"Marketplace for Industrial Lasers","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128939354","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}
引用次数: 0
Measuring red blood cell velocity in microvessels by images correlation technique 图像相关技术测量微血管内红细胞速度
Marketplace for Industrial Lasers Pub Date : 1990-07-01 DOI: 10.1117/12.2294738
S. Xiang
{"title":"Measuring red blood cell velocity in microvessels by images correlation technique","authors":"S. Xiang","doi":"10.1117/12.2294738","DOIUrl":"https://doi.org/10.1117/12.2294738","url":null,"abstract":"By means of a microscopic TV system with computer image processing equipment and a application program, the flow velocity of red blood cells can be quantitatively measured by spatial correlation detection as well as the change of the flow regime of microcirculation can be clearly observed on the monitor. This system not only reserves all the advantages of microscopic TV systems which are widely used in clinical detection now, but also can get satisfied measuring results by applying digitized processing on the images of microvessels to eliminate the background fluctuation and other disturbance signals which often lead to wrong results in the measurement of red blood cell velocity.","PeriodicalId":322470,"journal":{"name":"Marketplace for Industrial Lasers","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129095909","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}
引用次数: 0
首页 上一页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信