{"title":"DVD/CD Compatible Pick-up With Liquid Crystal Shutter","authors":"Takagi, Yamada, Kajiyama, Kanou, Matsumura, Tsuchiya, Ichiura","doi":"10.1109/ICCE.1997.625894","DOIUrl":null,"url":null,"abstract":"This paper describes an optical pick-up with a liquid crystal shutter that can read both DVDs and CDs. The pick-up has an objective lens with a numerical aperture (NA) of 0.6, which is designed for DVDs. By changing the beam size which enters the objective lens using a liquid crystal shutter, it can read both DVDs and CDs.","PeriodicalId":127085,"journal":{"name":"1997 International Conference on Consumer Electronics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1997-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"1997 International Conference on Consumer Electronics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCE.1997.625894","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
This paper describes an optical pick-up with a liquid crystal shutter that can read both DVDs and CDs. The pick-up has an objective lens with a numerical aperture (NA) of 0.6, which is designed for DVDs. By changing the beam size which enters the objective lens using a liquid crystal shutter, it can read both DVDs and CDs.
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