Application areas of optical disk systems have been expanding slowly but stably into the market during these few years. So far optical disks systems are widely used for image and document data storage. This application area is thought to be the most appropriate for the present performances and the functions of optical disks. One of the biggest limiting factor of the present optical disks for applying to directly competitive market with the conventional magnetic disk storage systems is their slow data processing time including data transfer rate, accessing time, and disk rotaion time. These problems have to be solved in order to apply optical disks to more general application areas where conventional magnetic disk storage systems are widely used.
{"title":"Advanced Technologies for the Next Generation Optical Disks","authors":"Y. Tsunoda, M. Ojima","doi":"10.1364/ods.1987.wd1","DOIUrl":"https://doi.org/10.1364/ods.1987.wd1","url":null,"abstract":"Application areas of optical disk systems have been expanding slowly but stably into the market during these few years. So far optical disks systems are widely used for image and document data storage. This application area is thought to be the most appropriate for the present performances and the functions of optical disks. One of the biggest limiting factor of the present optical disks for applying to directly competitive market with the conventional magnetic disk storage systems is their slow data processing time including data transfer rate, accessing time, and disk rotaion time. These problems have to be solved in order to apply optical disks to more general application areas where conventional magnetic disk storage systems are widely used.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116876553","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}
Most cartographic mapping is done photogrammetrically with the use of photographs taken from an airplane. Remote sensing images will gain in importance for cartographic mapping with the coming satellites, such as SPOT.
{"title":"DIGI-PHOTO Integrating Write-Once Optical Disk as an Active Component in Mapping from Digitized Photographs","authors":"Erling Maartmann-Moe, Jens Bech Jorgensen","doi":"10.1364/ods.1985.wcc4","DOIUrl":"https://doi.org/10.1364/ods.1985.wcc4","url":null,"abstract":"Most cartographic mapping is done photogrammetrically with the use of photographs taken from an airplane. Remote sensing images will gain in importance for cartographic mapping with the coming satellites, such as SPOT.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"187 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121769938","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}
High performance beamsplitting, polarizing and beam-steering optics used in optical disk drive heads have some requirements which are not always compatible with the low cost goal which is mandatory for high volume.
{"title":"Disk Drive Optics: Design Factors Affecting Manufacturing and Cost in Volume.","authors":"R. Westney, B. Swaby","doi":"10.1364/ods.1987.fc4","DOIUrl":"https://doi.org/10.1364/ods.1987.fc4","url":null,"abstract":"High performance beamsplitting, polarizing and beam-steering optics used in optical disk drive heads have some requirements which are not always compatible with the low cost goal which is mandatory for high volume.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129248084","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}
E. LaBudde, C. Shevlin, R. LaBudde, Charles Carlino
The development of an optical disk media suitable for applications in the computer industry requires the development of very high performance optical media and disk drive systems. Of major importance is the development of a media with sufficient sensitivity to be used with commercially available low cost and reliable lasers along with long life and reliability of data recoveries after extended periods of storage times. The overall performance of an optical disk is principally determined by the basic overall design as well as the selection of materials and processes used to manufacture the disk. Of particular importance is the need to develop a disk that has a highly stable operating performance in a wide range of environments, in particular the necessity to protect the recording layer from dust and other contaminations is critical in the error rate performance. This paper describes an overall disk design which promises to meet the stringent performance requirements for a computer compatible optical disk system. In addition, a relatively simple overall thermal and optical model will be developed to describe the behavior of the physical principles involved in the optical recording processes. This paper additionally will provide collaborating test and experimental evidence to confirm the validity of the analytical models. The significance of this paper involves the reporting of a full-up disk design, analytical models, and experimental evidence to confirm that a new disk design has been successfully achieved which promises to meet a high performance application.
{"title":"Some Calculations On A Hole Forming Mechanism Compatible With An In-Contact Overcoat","authors":"E. LaBudde, C. Shevlin, R. LaBudde, Charles Carlino","doi":"10.1364/ods.1983.tua4","DOIUrl":"https://doi.org/10.1364/ods.1983.tua4","url":null,"abstract":"The development of an optical disk media suitable for applications in the computer industry requires the development of very high performance optical media and disk drive systems. Of major importance is the development of a media with sufficient sensitivity to be used with commercially available low cost and reliable lasers along with long life and reliability of data recoveries after extended periods of storage times. The overall performance of an optical disk is principally determined by the basic overall design as well as the selection of materials and processes used to manufacture the disk. Of particular importance is the need to develop a disk that has a highly stable operating performance in a wide range of environments, in particular the necessity to protect the recording layer from dust and other contaminations is critical in the error rate performance. This paper describes an overall disk design which promises to meet the stringent performance requirements for a computer compatible optical disk system. In addition, a relatively simple overall thermal and optical model will be developed to describe the behavior of the physical principles involved in the optical recording processes. This paper additionally will provide collaborating test and experimental evidence to confirm the validity of the analytical models. The significance of this paper involves the reporting of a full-up disk design, analytical models, and experimental evidence to confirm that a new disk design has been successfully achieved which promises to meet a high performance application.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130409500","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}
Mechanical, Optical, Read/Write and Environmental guidelines for Optical Storage Media will be presented. The guidelines were created by a group of optical storage media and drive company representatives. The purpose of these guidelines is to assist others in optical media and/or drive design development and provide definitions and test methods for those interested in optical media storage.
{"title":"Optical Storage Media Guidelines","authors":"T. Olson","doi":"10.1364/ods.1983.tub1","DOIUrl":"https://doi.org/10.1364/ods.1983.tub1","url":null,"abstract":"Mechanical, Optical, Read/Write and Environmental guidelines for Optical Storage Media will be presented.\u0000 The guidelines were created by a group of optical storage media and drive company representatives. The purpose of these guidelines is to assist others in optical media and/or drive design development and provide definitions and test methods for those interested in optical media storage.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130571579","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}
A. Huijser, B. Jacobs, L. Vriens, J. Markvoort, A. Spruijt, P. Vromans
Accelerated ageing tests on discs with Te-alloys for ablative optical recording show that these media meet the requirements for long-term data storage.
对烧蚀光学记录用te合金光盘的加速老化试验表明，这些介质满足长期数据存储的要求。
{"title":"Ageing Characteristics of DOR Media","authors":"A. Huijser, B. Jacobs, L. Vriens, J. Markvoort, A. Spruijt, P. Vromans","doi":"10.1364/ods.1983.thb1","DOIUrl":"https://doi.org/10.1364/ods.1983.thb1","url":null,"abstract":"Accelerated ageing tests on discs with Te-alloys for ablative optical recording show that these media meet the requirements for long-term data storage.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"2167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127469924","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}
It is shown that focus error signal spectrum, measured while disk is spinning, represents Fourier transform of the disk profile modified by the loop gain.
结果表明，圆盘旋转时测得的聚焦误差信号谱表示经环路增益修正后的圆盘轮廓的傅里叶变换。
{"title":"Dynamic Testing of Optical Disk Flatness","authors":"J. Lewkowicz, D. Cohen","doi":"10.1364/ods.1983.wb7","DOIUrl":"https://doi.org/10.1364/ods.1983.wb7","url":null,"abstract":"It is shown that focus error signal spectrum, measured while disk is spinning, represents Fourier transform of the disk profile modified by the loop gain.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121189239","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}
The CD-ROM ( Compact Disc Read Only Memory), based on the digital audio Compact Disc system[1], is designed as a data storage device for computers. With a 540M-byte capacity, and a high-speed, random-access capability, the CD-ROM offers a wide range of storage applications and greatly expands the potential uses of computers.
CD-ROM (Compact Disc Read Only Memory，光盘只读存储器)是基于数字音频光盘系统[1]而设计的一种计算机数据存储设备。凭借540万字节的容量和高速随机存取能力，CD-ROM提供了广泛的存储应用，并极大地扩展了计算机的潜在用途。
{"title":"CD-ROM System","authors":"Yoichiro Sako, Tadao Suzuki","doi":"10.1364/ods.1985.wcc1","DOIUrl":"https://doi.org/10.1364/ods.1985.wcc1","url":null,"abstract":"The CD-ROM ( Compact Disc Read Only Memory), based on the digital audio Compact Disc system[1], is designed as a data storage device for computers. With a 540M-byte capacity, and a high-speed, random-access capability, the CD-ROM offers a wide range of storage applications and greatly expands the potential uses of computers.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"5 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116936989","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}
T. Toda, K. Shigematsu, M. Yoshihiro, M. Ojima, Y. Tsunoda
Magneto-optical (M-0) disk is an erasable and large capacity memory which has been actively developed by many companies in the world. One of the most serious problem in developing M-0 disk is to guarantee the signal to noise (SN) ratio . In the M-0 disk, Kerr effect is utilized to reproduce the recorded data on the disk. However, Kerr effect is usually so small that the SN ratio is considerably small comparing with that of the write-once optical disk. Moreover, the SN ratio decreases in association with the retardation of disk substrate because of the degradation of the polarization state of the laser beam. Consequently, a precise analysis of the SN ratio taking retardation of disk substrate into account is significantly important for designing M-0 disk system. In this paper, retardation of the policarbonate substrate is precisely investigated and quantitative relations between the SN ratio and the retardation of disk substrate are particularly studied by the polarization simulator which traces polarization state of the laser beam.
{"title":"Analysis of Signal to Noise Ratio in Magneto-Optical Disk Using a Polarization Simulator","authors":"T. Toda, K. Shigematsu, M. Yoshihiro, M. Ojima, Y. Tsunoda","doi":"10.1364/ods.1987.wb4","DOIUrl":"https://doi.org/10.1364/ods.1987.wb4","url":null,"abstract":"Magneto-optical (M-0) disk is an erasable and large capacity memory which has been actively developed by many companies in the world. One of the most serious problem in developing M-0 disk is to guarantee the signal to noise (SN) ratio . In the M-0 disk, Kerr effect is utilized to reproduce the recorded data on the disk. However, Kerr effect is usually so small that the SN ratio is considerably small comparing with that of the write-once optical disk. Moreover, the SN ratio decreases in association with the retardation of disk substrate because of the degradation of the polarization state of the laser beam. Consequently, a precise analysis of the SN ratio taking retardation of disk substrate into account is significantly important for designing M-0 disk system. In this paper, retardation of the policarbonate substrate is precisely investigated and quantitative relations between the SN ratio and the retardation of disk substrate are particularly studied by the polarization simulator which traces polarization state of the laser beam.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115706367","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}
The measurement of write/read characteristics of the media is a common requirement of all media manufacturers. This paper describes the methods used at Eastman Kodak Company in the characterization of the 14" write once media.
{"title":"Practical Specifications for Characterizing Write/Read Performance of Optical Disk Media","authors":"G. R. Lange","doi":"10.1364/ods.1987.wc4","DOIUrl":"https://doi.org/10.1364/ods.1987.wc4","url":null,"abstract":"The measurement of write/read characteristics of the media is a common requirement of all media manufacturers. This paper describes the methods used at Eastman Kodak Company in the characterization of the 14\" write once media.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114654593","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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