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    • 6. 发明专利
    • Hologram device
    • HOLOGRAM装置
    • JP2005331866A
    • 2005-12-02
    • JP2004152136
    • 2004-05-21
    • Alps Electric Co Ltdアルプス電気株式会社
    • SOMENO YOSHIHIRO
    • G03H1/28G02B5/32G03H1/26G11B7/0065G11B7/125G11B7/135
    • G11B7/0065G02B5/203G02B5/32G03H1/26G03H1/265G03H2001/266G03H2222/13G11B7/1353G11B7/1374
    • PROBLEM TO BE SOLVED: To provide a hologram apparatus capable of reproducing a hologram recorded with high density by a simple configuration. SOLUTION: The hologram apparatus has a light source 1 emitting reference light and reads out information recorded in a hologram 2a by allowing the light from the light source 1 to enter the hologram formed in a recording medium 2, wherein the light source 1 comprises a laser 10 having a plurality of peak wavelengths in the emission intensity of generated light, and a demultiplexing grating 12 which emits the light from the laser 10 at different angles for each of the peak wavelengths. The light source 1 is equipped with an optical switch 14 which renders the light emitted from the demultiplexing grating 12 into a transmissive or non-transmissive state. COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:提供能够通过简单的结构再现以高密度记录的全息图的全息图设备。 解决方案:全息图设备具有发射参考光的光源1,并且通过允许来自光源1的光进入记录介质2中形成的全息图,读出记录在全息图2a中的信息,其中光源1 包括具有产生光的发射强度的多个峰值波长的激光器10以及对于每个峰值波长以不同角度从激光器10发射光的解复用光栅12。 光源1配备有使从解复用光栅12发射的光成为透射或非透射状态的光开关14。 版权所有(C)2006,JPO&NCIPI