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    • 31. 发明公开
    • Light control substance and light control method using the same
    • 材料zur Lichtsteuerung und Verfahren,das dieses benutzt
    • EP0753789A2
    • 1997-01-15
    • EP96111095.4
    • 1996-07-10
    • RESEARCH DEVELOPMENT CORPORATION OF JAPAN
    • Maeda, Yoshinobu
    • G02F3/02
    • G02F1/3523G02F3/024
    • A light control substance having a negative input-output characteristic is used to invert optical signals. The light control substance is an absorbing substance and has a multi-level energy structure such that ground state absorption occurs between a ground level (E 1 ) and a level (E 3 ) higher than the ground level (E 1 ) and excited state absorption occurs between an excited level (E 2 ) and a level (E 4 ) higher than the excited level (E 2 ). At a specific wavelength, a variation Δ Iout in the intensity of output light and a variation Δ Iin in the intensity of input light satisfy the following equations: Δ Iout = [1-α 1 (1+α 2 γ)]Δ Iin α 1 (1+α 2 γ) > 1 where α 1 is an absorbance of the ground state absorption, α 2 is an absorbance of the excited state absorption, and γ is a ratio of electrons relaxing from the level (E 3 ) higher than the ground level (E 1 ) to the exited level (E 2 ). As a result, the value of Δ Iout/Δ Iin becomes negative.
    • 使用具有负输入 - 输出特性的光控制物质来反转光信号。 光控物质是吸收物质,具有能够在地平面(E1)和高于地平面(E1)的水平(E3)之间发生基态吸收的多层能量结构,并且激发态吸收发生在 激发电平(E2)和高于激发电平(E2)的电平(E4)。 在特定波长处,输出光强度和输入光强度下的变化量DELTA Iin的变化量ΔTAIout满足以下等式:其中α1是基态吸收的吸光度,α 2是激发态吸收的吸光度,γ是比从地电平(E1)高到退出电平(E2)的电平(E3)放电的电子比。 结果,DELTA Iout / DELTA Iin的值变为负值。
    • 37. 发明公开
    • Optical device
    • Optische Vorrichtung。
    • EP0575036A2
    • 1993-12-22
    • EP93302727.8
    • 1993-04-07
    • RESEARCH DEVELOPMENT CORPORATION OF JAPAN
    • Maeda, Yoshinobu
    • G11C13/04G11C13/06G02F3/02
    • G02F3/026
    • An optical controlling device has a light transmitting medium (10) having a low transmittance for specific light wavelength λ₁ and a high transmittance for light wavelength λ₂ which is close to said light wavelength λ₁, and a light emitting device (11) emitting a light of light wavelength λ₁ or λ₂, and controls light intensity in accordance with changes in a controlled light through light irradiation and light transmission.
      An optical functional device has a light transmitting medium showing a low transmittance for specific light wavelength λ₁ and a high transmittance for light wavelengths λ₂ and λ₃ which are close to said wavelength λ₁ (λ₂
    • 光控制装置具有对于特定光波长λ1具有低透射率的光透射介质(10)和接近所述光波长λ1的光波长λ2的高透射率,以及发射器件 光波长λ1或λ2的光,并且根据通过光照射和光透射的受控光的变化控制光强度。 光学功能器件具有对于特定光波长λ1具有低透射率的透光介质和接近所述波长λ1(λ2 <λ1)的光波长λ2和λ3的高透射率, 以及发射具有波长λ1,λ2或λ3的光的发光装置,所述波长取决于电流注入或光照射的量,并且波长的变化伴随着滞后的产生。 通过所述光传输介质传输的光强度在所述滞后的作用下保持在低强度或高强度状态,由此获得记忆功能。