To provide a light guide indicator and an indicator light emitting device that can reduce unevenness of luminance in a light emitting surface.SOLUTION: A lower surface 222 of a main indicator part 22 has a separation surface 222A extending away from a light emitting surface 24 and light reflected from a front inclination part 253 of a light adjusting space 25 does not therefore easily propagate to the lower side in a z-direction and also does not easily reach a corner part as the interface between the separation surface 222A and a recess part 222B. For that reason, light is not easily reflected by the corner part between the separation surface 222A and the recess part 222B, and it becomes possible to suppress increase of the luminance of a part of the light emitting surface 24 and to prevent generation of uneven luminance.SELECTED DRAWING: Figure 5
【課題】発光面における輝度ムラを抑制することができる導光指針および指針発光装置を提供する。【解決手段】主指針部22の下面222が、発光面24から離れるように延びる離隔面222Aを有することで、調光空間25の前方傾斜部253によって反射された光は、Z方向下方側に向かって進行しにくいことから、離隔面222Aと凹部222Bとの境界である角部に到達しにくい。従って、離隔面222Aと凹部222Bとの間の角部によって光が反射されにくく、発光面24の一部の輝度が高くなることを抑制して輝度ムラを抑制することができる。【選択図】図5
LIGHT GUIDE INDICATOR AND INDICATOR LIGHT EMITTING DEVICE
導光指針および指針発光装置
2021-02-22
Patent
Elektronische Ressource
Japanisch
IPC: | G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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