Indicator lighting device

Details Indicator lighting device Indicator lighting device

2007-09-18

2007-09-18

Ward, John Anthony (Department: 2885)

Illumination

Illuminated scale or dial

C362S029000, C362S030000

Reexamination Certificate

active

10546559

ABSTRACT:
An indicator lighting device in which light introduction efficiency into a indication portion can be improved, brightness is good and unevenness in lighting is small is provided; wherein an indicator7which has a translucent indication member (indication portion)72and a light introduction member (light introduction portion)73and is operated around an axis by a drive shaft1of a drive unit2,light sources L which are disposed around the drive shaft1and illuminate the indication member72through the light introduction member73are provided, and the light introduction member73has a light receiving surface73afor receiving light from the light sources L, a first reflective surface73bfor focusing light introduced from the light receiving surface73ato a position of a rotation axis Vaof the drive shaft1,a second reflective surface73cwhich is formed between the first reflective surface73band the rotation axis and reflects light from the first reflective surface73bin a direction along the rotation axis Va, and a third reflective surface73dwhich is formed on the rotation axis Vain a way of facing the second reflective surface73cand reflects light from the second reflective surface73cin a longitudinal direction of the indication member72.

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Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 163060/1978 (Laid-open No. 080797/1980) (Yazaki Corp.) Jun. 3, 1980.
CD-ROM of the specification and drawings annexed to the request of Japanese Utility Model Application No. 024794/1992 (Laid-open No. 079434/1993) (Nippon Seiki Co., Ltd.), Oct. 29, 1993.
Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 006115/1979 (Laid-open No. 105118/1980) (Toyota Motor Co., Ltd.) Jul. 22, 1980.

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