A. Yoshikawa, H. Nakanishi, K. Itoh, T. Yamazaki, T. Komino, T. Musha
{"title":"用于CD播放机薄光学拾取头的LDH(激光/探测器/全息图)装置","authors":"A. Yoshikawa, H. Nakanishi, K. Itoh, T. Yamazaki, T. Komino, T. Musha","doi":"10.1109/ECTC.1994.367566","DOIUrl":null,"url":null,"abstract":"The LDH unit with the size of 4.8/spl times/8.2/spl times/4.3 mm for a thin optical pickup head of a CD player has been successfully developed. The technology to make the LDH unit thin and small is based upon (1) the most efficient optical combination of the low operation current laser diode with the 45/spl deg/ built-in micro-mirror which is formed on the Si photodetector substrate, (2) the thin plastic-molded flat package with good thermal dissipation, and (3) the plastic-molded holographic optical element (HOE) as a cap. The pick-up head using the LDH unit has shown good optical performance sufficient for the application to CD players.<<ETX>>","PeriodicalId":344532,"journal":{"name":"1994 Proceedings. 44th Electronic Components and Technology Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1994-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":"{\"title\":\"LDH (laser/detector/hologram) unit for thin optical pick-up head of CD player\",\"authors\":\"A. Yoshikawa, H. Nakanishi, K. Itoh, T. Yamazaki, T. Komino, T. Musha\",\"doi\":\"10.1109/ECTC.1994.367566\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The LDH unit with the size of 4.8/spl times/8.2/spl times/4.3 mm for a thin optical pickup head of a CD player has been successfully developed. The technology to make the LDH unit thin and small is based upon (1) the most efficient optical combination of the low operation current laser diode with the 45/spl deg/ built-in micro-mirror which is formed on the Si photodetector substrate, (2) the thin plastic-molded flat package with good thermal dissipation, and (3) the plastic-molded holographic optical element (HOE) as a cap. The pick-up head using the LDH unit has shown good optical performance sufficient for the application to CD players.<<ETX>>\",\"PeriodicalId\":344532,\"journal\":{\"name\":\"1994 Proceedings. 44th Electronic Components and Technology Conference\",\"volume\":\"17 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1994-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"11\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1994 Proceedings. 44th Electronic Components and Technology Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ECTC.1994.367566\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1994 Proceedings. 44th Electronic Components and Technology Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ECTC.1994.367566","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
LDH (laser/detector/hologram) unit for thin optical pick-up head of CD player
The LDH unit with the size of 4.8/spl times/8.2/spl times/4.3 mm for a thin optical pickup head of a CD player has been successfully developed. The technology to make the LDH unit thin and small is based upon (1) the most efficient optical combination of the low operation current laser diode with the 45/spl deg/ built-in micro-mirror which is formed on the Si photodetector substrate, (2) the thin plastic-molded flat package with good thermal dissipation, and (3) the plastic-molded holographic optical element (HOE) as a cap. The pick-up head using the LDH unit has shown good optical performance sufficient for the application to CD players.<>
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