PROBLEM TO BE SOLVED: To provide a signal light device that has easy configurations for reducing cost, can fix appropriate distribution of lights from a light source, and can surely limit the visible angles of distributed lights.SOLUTION: The signal light device includes: an LED unit 20 in a frame 11, which emits lights forward; a lens 30 in front of the LED unit, which fixes distribution of an incoming light; and a visual-angle limiting member 40 in front of the lens, which limits the visual angle of the distributed light, the visual-angle limiting member 40 having a plurality of light shielding bands 42 with a small width lined at specific intervals on the front and back surfaces of a planar transparent substrate 41, and the light shielding bands on the front surface and the light shielding bands on the back surface corresponding to each other in the thickness direction.SELECTED DRAWING: Figure 1
【課題】簡易な構成によりコスト高を招くことなく、光源からの光の配光を適宜定めることができると共に、配光された光の視認角度を確実に制限することができる信号灯器を提供する。【解決手段】筐体11内部に配されて前方へ光を照射するLEDユニット20と、その前側に配されて入射した光の配光を定めるレンズ30と、その前側に配されて配光された光の視認角度を制限する視角制限体40とを備える。視角制限体40は、面状で透明な基体41の表裏面に、互いに表裏で厚さ方向に合致する位置で細幅に延びる複数の遮光性帯42を所定間隔おきに並設してなる。【選択図】図1
SIGNAL LIGHT DEVICE
信号灯器
19.01.2017
Patent
Elektronische Ressource
Japanisch
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