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    • 7. 发明公开
    • 면 발광장치, 광학 소자 및 액정표시장치
    • 平面发光器件,光学元件和液晶显示器件
    • KR1020090037986A
    • 2009-04-17
    • KR1020087006191
    • 2007-07-25
    • 소니 주식회사
    • 호시미츠나리야마키타시게히로신카이쇼고
    • G02F1/13357F21V7/04
    • G02F1/133604G02F2001/133607
    • A maximum tangent angle (a) satisfying the relationship of x>L/2-D/2 is included when a moving distance (x) from a light source in a direction orthogonally intersecting with an optical axis of a divided image of a light source is calculated, with the formulas of (1) n0sin(a)=nsin(a-Theta2), (2) n0sinTheta1=nsinTheta2, (3) x=WtanTheta1+dtanTheta2, where (L) is a distance between the centers of light sources (12, 12), (n) is a refractive index of an optical element (15), (d) is a thickness of the optical element, (W) is a distance from the center of the light source to the optical element, (n0) is a refractive index of air, (Theta1) is an incidence angle to the optical element, (Theta2) is a refractive angle of the optical element, and (a) is the maximum tangent angle formed by a tangent making contact with the diameter (D) of the light source and an outer surface of a luminance distribution forming layer (18) of the optical element and a surface orthogonally intersecting with the optical axis. Thus, front luminance distribution is made uniform.
    • 当从与光源的分割图像的光轴正交的方向的光源的移动距离(x)时,包括满足x> L / 2-D / 2的关系的最大切线角(a) (1)n0sin(a)= nsin(a-Theta2),(2)n0sinθ1=nsinθ2,(3)x = WtanTheta1 + dtanTheta2,其中(L)是光中心之间的距离 源(12,12),(n)是光学元件(15)的折射率,(d)是光学元件的厚度,(W)是从光源的中心到光学元件的距离 ,(n0)是空气的折射率,(Theta1)是与光学元件的入射角,(θta)是光学元件的折射角,(a)是由切线接触形成的最大切线角 具有光源的直径(D)和光学元件的亮度分布形成层(18)的外表面和与光学元件正交相交的表面 l轴。 因此,使正面亮度分布均匀。