全像光碟讀寫機構與全像光碟讀取機構HOLOGRAM DISC READING AND WRITING APPARATUS AND HOLOGRAM DISC READING APPARATUS

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

098118899

專利證號

I 384475

專利獲證名稱

全像光碟讀寫機構與全像光碟讀取機構HOLOGRAM DISC READING AND WRITING APPARATUS AND HOLOGRAM DISC READING APPARATUS

專利所屬機關 (申請機關)

國立中央大學

獲證日期

2013/02/01

技術說明

一種全像光碟讀寫機構，其包括訊號光源模組、分光鏡、參考/讀取光源、反光鏡及光學讀取頭。訊號光源模組所放射的訊號光束會經由分光鏡而傳遞至全像光碟上的資料區。參考/讀取光源、訊號光源模組與光學讀取頭位於全像光碟的同一側，而反光鏡位於另一側。參考/讀取光源所放射的球面波光束會傳遞至並穿透資料區。反光鏡適於將球面波光束反射成與其相位共軛之相位共軛光束而傳遞至資料區，且相位共軛光束穿透資料區後會轉變為資料光束而經由分光鏡傳遞至光學讀取頭。一種全像光碟讀取機構亦被提出。 A hologram disc reading and writing apparatus including a signal light source module, a beam splitter, a reference/reading light source, a reflector and an optical reading head is provided. A signal light beam emitted from the signal light source module is transmitted to a data region of a hologram disc through the beam splitter. The reference/reading light source, the signal light source module and the optical reading head are disposed one the same side of the hologram disc, while the reflector is disposed on the other side. A spherical wave light beam emitted from the reference/reading light source is transmitted through the data region. The phase conjugate of a spherical wave light beam transmitted to the data region. The phase conjugate light beam is transmitted through the data region and then transformed to a data light beam transmitted to the optical reading head through the beam splitter. A hologram disc reading apparatus is also provided.

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