Patent ID: 7624699
Filing Date: 2009-12-01
Classification: B60K,G01D,Y10S

Abstract:
1. A pointer illuminator comprising: an optically transparent pointer member having a reflecting surface for a pointer, which surface reflects light incident on a predetermined surface of incidence of the pointer member and guides the light to a tip of the pointer; a light source arranged around a drive shaft of the pointer member; and an optically transparent light-guiding member, which guides light from the light source to the surface of incidence of the pointer member and includes a first light-guiding reflecting surface formed in a paraboloid shape provided on a face of the light-guiding member, an angle between the first light-guiding reflecting surface and a center axis of the light source becoming smaller as the first light-guiding reflecting surface leaves the light source so that the first light-guiding reflecting surface reflects the light from the light source to convert the light into approximately parallel light rays, whereby the light-guiding member guides the parallel light rays to the surface of incidence of the pointer member.