This second conference volume contains 12 papers covering various aspects of opticalstoragetechnology. storage media selection, optimization, fabrication, and behavior in actual operational scenarios are the main to...
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This second conference volume contains 12 papers covering various aspects of opticalstoragetechnology. storage media selection, optimization, fabrication, and behavior in actual operational scenarios are the main topics covered.
The advanced development and characteristics of a new high resolution, high frame rate, reflected mode MOSLM is reported. This effort is aimed at the production of Miniature Ruggedized optical Correlators. The device ...
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ISBN:
(纸本)0819408697
The advanced development and characteristics of a new high resolution, high frame rate, reflected mode MOSLM is reported. This effort is aimed at the production of Miniature Ruggedized optical Correlators. The device research and process development is being performed at Carnegie Mellon University NSF datastorage System Center (formerly Magnetic technology Center) under contract from Litton data Systems. Pixel size is under one mil center to center, one third the dimension of present transmission mode evaluation devices. This development includes optimization of the optical and functional characteristics of the MOSLM for Mil Spec Systems.
The current method of munitions systems testing uses film cameras to record airborne events such as store separation. After film exposure, much time is spent in developing the film and analyzing the images. If the ana...
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ISBN:
(纸本)0819406678
The current method of munitions systems testing uses film cameras to record airborne events such as store separation. After film exposure, much time is spent in developing the film and analyzing the images. If the analysis uses digital methods, additional time is required to digitize the images preparatory to the analysis phase. Because airborne equipment parameters such as exposure time cannot be adjusted in flight, images often suffer as a result of changing lighting conditions. Image degradation from other sources may occur in the film development process, and during digitizing. advances in the design of charge-coupled device (CCD) cameras and mass storage devices, coupled with sophisticated data compression and transmission systems, provide the means to overcome these shortcomings. A system can be developed where the image sensor provides an analog electronic signal and, consequently, images can be digitized and stored using digital mass storage devices or transmitted to a ground station for immediate viewing and analysis. All electronic imaging and processing offers the potential for improved data quality, rapid response time and closed loop operation. This paper examines high speed, high resolution imaging system design issues assuming an electronic image sensor will be used. Experimental data and analyses are presented on the resolution capability of current film and digital image processing technology. Electrical power dissipation in a high speed, high resolution CCD array is also analyzed.
It is noted that significant advances in laser communication technology can be utilized to provide low-risk, high-data-rate links from a low Earth orbit (LEO) to a geosynchronous Earth orbit (GEO) satellite or from a ...
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Progress of opticaldatastoragetechnology and application systems,which have been obtained recent years in Tsinghua University,are *** this paper,the new multifuction optical drive,miniaturizational optical head,hig...
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Progress of opticaldatastoragetechnology and application systems,which have been obtained recent years in Tsinghua University,are *** this paper,the new multifuction optical drive,miniaturizational optical head,high speed precise seeking system,automatic exchange disk system(jukebox), controller interface adapter,data compression technology and various applicaion systems are reported.
Summary form only given. Two-photon excitation provides a means of activating chemical or physical processes with high spatial resolution in three dimensions and has enabled the development of 3D fluorescence imaging,...
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Summary form only given. Two-photon excitation provides a means of activating chemical or physical processes with high spatial resolution in three dimensions and has enabled the development of 3D fluorescence imaging, 3D opticaldatastorage, and 3D lithographic microfabrication. We have developed a wide array of chromophores which hold great promise for 3D opticaldatastorage and 3D microfabrication.
Contouring methods related to design are described. The focus is the noncontact, optical-based methods. Problems encountered in using optical triangulation includes such issues as occlusions, loss of measurement over ...
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Contouring methods related to design are described. The focus is the noncontact, optical-based methods. Problems encountered in using optical triangulation includes such issues as occlusions, loss of measurement over a step change, or signal loss due to large variations in surface reflectivity. There have been a great many advances in both scanning and staring triangulation contouring systems specifically aimed at removing these problems. The author reviews the pros and cons of some of the currently available scanning and static contouring method, and presents a comparison of results in addressing the limitations of the technology. Initial results of the use of full-field contouring based on structured lighting are presented, along with a review of the major concerns encountered in the generation of CAD data from this type.< >
It is noted that significant advances in laser communication technology can be utilized to provide low-risk, high-data-rate links from a low Earth orbit (LEO) to a geosynchronous Earth orbit (GEO) satellite or from a ...
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It is noted that significant advances in laser communication technology can be utilized to provide low-risk, high-data-rate links from a low Earth orbit (LEO) to a geosynchronous Earth orbit (GEO) satellite or from a LEO satellite to the ground. The authors address the design of these links where data rates of 1 Gb/s and greater are required. The acquisition, the cooperative tracking, and the communication channel requirements, and implementation are developed and discussed, including atmospheric effects for a LEO satellite to ground link. Size, weight, and power estimates are included. Major components are identified. Overall system development risk is shown to be low, based on component maturity.< >
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