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    • 1. 发明专利
    • Wavelength controlling method, hologram information processor, and hologram recording medium
    • 波长控制方法,HOLOGRAM信息处理器和HOLOGRAM记录介质
    • JP2008151941A
    • 2008-07-03
    • JP2006338731
    • 2006-12-15
    • Sharp Corpシャープ株式会社
    • KANAZAWA YASUTOKUKAMIYAMA TETSUO
    • G03H1/04G11B7/0065G11B7/125
    • G03H1/22G03H1/2286G03H2001/2289G03H2222/10G11B7/0065G11B7/00736G11B7/00772G11B7/126
    • PROBLEM TO BE SOLVED: To provide a hologram information processor capable of simply setting a reproducing wavelength or a recording wavelength, and also shortening a regulation time. SOLUTION: When the wavelength of a laser beam of a wavelength variable laser is controlled (step S0), an optical system or a hologram recording medium is moved (step S1), and a state where a light beam is made incident on a wavelength control pattern is made. Then, the wavelength control pattern is irradiated with a reference light being a laser beam (step S2). Next, the reproducing light from the wavelength control pattern is measured with a light receiving element (step S3). The wavelength of the reference light being a laser beam is minutely changed. The light quantity of the reproducing light changes in accordance with the wavelength; the light quantity of the reproducing light is monitored, and a specified wavelength λ 0 in which the light quantity of the reproducing light reaches the maximum (the rotation angle of the diffraction grating 52) is obtained (step S4). Then, the wavelength of the laser beam of a wavelength variable laser beam source is regulated (step S5). COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供能够简单地设置再现波长或记录波长的全息图信息处理器,并且还缩短调节时间。 解决方案:当控制波长可变激光器的激光束的波长(步骤S0)时,移动光学系统或全息图记录介质(步骤S1),并且使光束入射到其中的状态 做出波长控制模式。 然后,用作为激光束的参考光照射波长控制图案(步骤S2)。 接下来,用光接收元件测量来自波长控制图案的再现光(步骤S3)。 作为激光束的参考光的波长被微小地改变。 再现光的光量根据波长而变化; 监视再现光的光量,并且获得再现光的光量达到最大值(衍射光栅52的旋转角度)的指定波长λ 0 (步骤S4 )。 然后,调整波长可变的激光束源的激光束的波长(步骤S5)。 版权所有(C)2008,JPO&INPIT
    • 4. 发明专利
    • Hologram element
    • HOLOGRAM元素
    • JPS5773777A
    • 1982-05-08
    • JP15107180
    • 1980-10-27
    • Sumitomo Electric Ind Ltd
    • TADA KOUJIEHARA MIKITATSUMI MASAMI
    • G02F1/05B41M5/26G02F1/03G03C1/72G03H1/02
    • G03H1/0256G03H2001/026G03H2001/2289G03H2250/12G03H2260/54
    • PURPOSE:To form a hologram element that can obtain a bright reproduced image with low voltage by laminating plural crystal provided with transparent electrodes on both sides. CONSTITUTION:Transparent electrodes 2, 2 having lambda0/4 optical film thickness (lambda0 is wavelength of light source) are formed by evaporating In2O3 etc., on both sides (110 face) of a crystal plate 1 (for example; single crystal plate of bismuth silicon oxide, single crystal plate of bismuth germanate) that has electro-optical effect and optical conductive effect. Next, plural above-mentioned crystal plates are laminated on (110) face to make a hologram element (3 is an electric power source). As voltage can be applied to the above-mentioned element dividing into (n) parts, the element can be driven by 1/n power voltage compared with conventional element.
    • 目的:通过在两侧层叠设置有透明电极的多个晶体来形成能够以低电压获得亮度再现图像的全息元件。 构成:通过在晶体板1的两面(110面)上蒸发In 2 O 3等,形成具有λ0/ 4光学膜厚度(λ0为光源的波长)的透明电极2,2(例如,单晶板 铋硅氧化物,锗酸铋单晶板)具有电光效应和导光效果。 接着,将多个上述晶体层叠在(110)面上,制成全息元件(3为电源)。 由于可以将电压施加到分为(n)个部分的上述元件,与传统元件相比,该元件可以通过1 / n电源电压驱动。