The present invention comprises a light introducing member (12) and a light reflecting member (11). On a side portion of the light reflecting member (11), a side portion reflecting surface (14) for reflecting introduced light to an opposite area that opposes the side portion with an opening (13) interposed therebetween is formed so as to have a linear shape. Additionally, around the opening (13) of the light reflecting member (11), a groove portion for reflecting the introduced light in a direction roughly perpendicular to the surface of the light reflecting member (11) and guiding the introduced light in the direction of a light-emitting pointer (24) is formed. The groove portion comprises a first groove portion (P1) formed in the area around the opening (13) that is not in the opposite area and a second groove portion (P2) formed in the opposite area. The first groove portion (P1) comprises a plurality of grooves that face a direction roughly perpendicular to the introduced light, and the second groove portion (P2) comprises a plurality of grooves having a prescribed angle in relation to the first grooves (P1). As a result, it is possible to evenly reflect light in the area around the opening (13) and irradiate the light toward the light-emitting pointer (24).
Light guide for light-emitting pointer
2015-12-30
Patent
Electronic Resource
English
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 |