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    • 5. 发明授权
    • Illumination device having light guide body
    • 具有导光体的照明装置
    • US07806578B2
    • 2010-10-05
    • US12107606
    • 2008-04-22
    • Mitsuru KamikatanoTakashi Tsumanuma
    • Mitsuru KamikatanoTakashi Tsumanuma
    • F21V7/04
    • G02B6/0068G02B6/0076G02B6/0078H05B33/0842
    • The illumination device is provided with a plurality of light guide bodies, the bottom face of which is given light reflection/scattering treatment, light sources individually connected to the end portions of a plurality of the light guide bodies to radiate the bottom faces of a plurality of the light guide bodies, and a control unit for changing the intensity of light made incident from the light sources to a plurality of the light guide bodies. A plurality of the light guide bodies are laminated so as to be at least partially overlapped at the respective light emitting regions of the light guide bodies, and the control unit allows the intensity of light made incident from the light sources to the light guide bodies to change with the lapse of time.
    • 照明装置设置有多个导光体,其底面被给予光反射/散射处理,光源单独地连接到多个导光体的端部以辐射多个底面 的导光体,以及控制单元,用于将从光源入射的光的强度改变为多个导光体。 多个导光体被层叠成至少部分地重叠在导光体的各个发光区域,并且控制单元允许从光源入射的光的强度到导光体到 随着时间的流逝而改变。
    • 7. 发明申请
    • DISPLAY DEVICE
    • 显示设备
    • US20110051393A1
    • 2011-03-03
    • US12988189
    • 2009-04-16
    • Kohki IshikawaKiyotsugu ObaMitsuru KamikatanoKiyoshi Ina
    • Kohki IshikawaKiyotsugu ObaMitsuru KamikatanoKiyoshi Ina
    • G01D11/28
    • G01D11/28B60K2370/20B60K2370/33
    • Both end portions of a light guide body (3) are bent in respective directions towards a second main surface to form guide portions (31, 32). Light that is emitted from each light source (4, 5) mounted on a wiring board arranged on the rear side of the light guide body and that travels in a direction vertical to main surfaces of the light guide body is guided by each guide portion (31, 32) into light propagating in a direction along the main surfaces of the light guide body. Reflection surfaces of a plurality of grooves (13) formed on the light guide body radially from the center position thereof reflect the light from the light sources to a dial plate (2) side and a diffusion printing diffuses the reflected light, so that the diffused light transmissively illuminates a scale marks section (21) and a numerical characters section (22) of the dial plate with uniform brightness.
    • 导光体(3)的两端部朝向第二主表面朝各个方向弯曲以形成引导部(31,32)。 安装在布置在导光体背面侧并沿与导光体主表面垂直的方向移动的布线基板上的每个光源(4,5)发出的光由各引导部分 31,32)沿着沿着导光体的主表面的方向传播的光。 从导光体的中心位置径向形成的多个凹槽(13)的反射面将来自光源的光反射到表盘(2)侧,扩散印刷使反射光扩散, 光透明地以均匀的亮度照亮刻度盘部分(21)和数字字符部分(22)。