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    • 3. 发明授权
    • Spread illumination apparatus
    • 传播照明设备
    • US06375336B1
    • 2002-04-23
    • US09450779
    • 1999-11-30
    • Shingo SuzukiMasafumi OkadaKoichi Toyoda
    • Shingo SuzukiMasafumi OkadaKoichi Toyoda
    • F21V704
    • G02B6/0038
    • The invention describes a light reflection pattern to spread the volume of the emitted light from a bar-like light source with a plurality of grooves provided along a transparent substrate and plane portions adjacent to the grooves. By setting the inclined angle of the grooves along the transparent substrate the light is introduced with a high efficiency to a liquid crystal display device in the direction perpendicular to the substrate. By restricting the ratio of the width of the grooves to the pitch that is the occupied area in the range of 0.01-0.15 (preferably 0.01-0.1) the ratio becomes one in which the duplicate image component is not recognized by the naked eyes while image brightness is maintained.
    • 本发明描述了一种光反射图案,用于将具有沿着透明基板设置的多个凹槽和与凹槽相邻的平面部分的棒状光源的发射光的体积扩展。 通过沿着透明基板设置凹槽的倾斜角度,在与基板垂直的方向上将液体高效率地引入液晶显示装置。 通过将凹槽的宽度与占据面积的间距限制在0.01-0.15(优选为0.01-0.1)的范围内,该比率成为其中双重图像分量不能被肉眼识别的比例,而图像 保持亮度。
    • 5. 发明授权
    • Spread illuminating apparatus with an optical path conversion means
    • 具有光路转换装置的扩展照明装置
    • US06494588B1
    • 2002-12-17
    • US09606669
    • 2000-06-30
    • Masafumi Okada
    • Masafumi Okada
    • F21V704
    • G02B6/0016G02B6/0028G02B6/0038G02B6/0061
    • A spread illuminating apparatus, in which a bar-like light conductive member brightened by a light emitting diode disposed at an end thereof is disposed close to the side of a transparent substrate made of light-permeable materials. The light conductive member is provided with a row of prism grooves as an optical path conversion means and an optical path conversion plate is disposed between the light conductive member and the transparent substrate. Light from the light emitting diode enters the light conductive member and is directed slantingly at the prism grooves to enter the optical path conversion means. Then, the light enters the transparent substrate straight to illuminate it efficiently.
    • 扩散照明装置,其中由设置在其一端的发光二极管增亮的棒状导光部件靠近由透光材料制成的透明基板的侧面。 导光构件设置有作为光路转换装置的一排棱镜槽,并且光路转换板设置在导光构件和透明基板之间。 来自发光二极管的光进入导光部件并被倾斜地指向棱镜槽以进入光路转换装置。 然后,光直接进入透明基板以有效地照亮。