頁籤選單縮合
題名 | 下世代光碟規格研究=The Study of the Next-Generation DVD Format |
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作 者 | 黃金壽; | 書刊名 | 光學工程 |
卷期 | 86 2004.06[民93.06] |
頁次 | 頁1-11 |
分類號 | 471.6525 |
關鍵詞 | 先進光碟; 藍光碟片; 高密度DVD; 高解析度DVD; 高透鏡數值孔鏡值; 藍光鐳射; DVD; Advanced optical disc; Blu-ray disc; High definition DVD; High numerical aperture; Wobble-address format; Blue-laser diode; 405nm; |
語文 | 中文(Chinese) |
中文摘要 | 隨著光儲存技術的進步,高容量的碟片陸續誕生,從早期CD容量為650MB發展至99分鐘870MB的超長型可錄式CD碟片,接著從CD格式轉換至4.7GB的DVD碟片容量加了7倍,中國大陸推出的EVD以及近期臺灣工研院光電所及前瞻光儲存研發聯盟所推出的5~6GB的FVD,其目的皆是為了提高儲存容量來存放高畫質的影音資料以滿足消費者的需求。隨著數位電視的即將普及,為了存放高畫質數位節目,更高容量的記錄媒體紛紛被提出來,目前共有AOD(即HD-DVD)及BD (Blu-Ray Disc)兩種主要的規格,AOD是由東芝(Toshiba)及恩益禧(NEC)兩家公司共同發表,而BD則是由9家國際主流電子巨頭(9C)共同發表。兩種規格皆採用405 nm的藍光鐳射,HD-DVD採用數值孔徑值為0.65,可讀寫容量單面單層可達20 GB,而BD則是採用0.85的數值孔徑,可讀寫的最高容量單面單層為27 GB。雖然DVD forum於2004年2月通過HD-DVD規格為下世代光碟的規格,但是BD陣營的勢力也不容忽視,雙方皆積極研發並推出新產品。在規格尚未統一的情況下,是否會步上DVD minus及plus的後塵值得大家拭目以待。 |
英文摘要 | He first high definition DVD format announced was the Blu-Ray Disc. This format was developed outside of the DVD Forum, a body that supports the successful DVD-Video format. It was formulated by a consortium of nine manufacturers called the "Blu-Ray Disc Founders". This format is to use a new blue-violet laser technology (hence its name), with a shorter wavelength of 405 nanometers (nm). This translates to a smaller laser beam width, so that the spot that represent a single bit of data can be made smaller, taking up less real estate on the disc surface. This means that more bits (or data) can be crammed onto the standard diameter 12-cm optical disc. The data capacity increases to a maximum of 27 GB for a single-layered Blu-Ray Disc. Created by Toshiba and NEC, the Advanced Optical Disc (AOD, now is called HD DVD) format is relatively new in comparison with the Blu-Ray Disc format. But interestingly enough, the HD DVD format is already being supported by the DVD Forum, a consortium that includes all nine members of the "Blu-Ray Disc founders". The HD DVD format standardization is nearing its completion. The Toshiba-NEC team expects to complete the version 1.0 specifications by second quarter of 2004. Details are still sketchy for the HD DVD format. But here is the information that we do have. The HD DVD format also uses blue laser technology with a 405 nm wavelength and uses a 12-cm optical disc. In terms of data capacity, a single-layered read-only (pre-recorded) disc would hold 15 GB, while a dual-layered disc doubles the capacity to 30GB. A rewritable (recordable) version holds 20 GB. Unfortunately, the development of HD DVD has split into two camps. Each with its own proposed format and product for the next generation HD DVD format. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。