Illumination – Illuminated scale or dial – Edge illuminated modifier or light rod/pipe
Patent
1997-03-07
1998-05-19
Husar, Stephen F.
Illumination
Illuminated scale or dial
Edge illuminated modifier or light rod/pipe
362 30, 362 32, 362293, G01D 1128
Patent
active
057527598
ABSTRACT:
The control knob includes a chamber into which a translucent polycarbonate jewel light pipe assembly of a first color, such as blue, and a translucent polycarbonate jewel cap of a second color, such as white, are inserted. The jewel cap is engaged against said jewel light pipe assembly and includes a bulbous portion which protrudes or stands proud through an axially oriented slot in the sidewalls of the control knob thereby forming an indicator for the control knob. In ambient illumination, such as during the day, the indicator appears to be the color of the jewel cap, such as white. However, when the dashboard is electrically illuminated, such as during the night, the illumination is collected by the jewel light pipe, and the color of the jewel light pipe assembly, such as blue or blue-green, is projected through the cap assembly and the indicator appears to be blue or blue green.
REFERENCES:
patent: 5171080 (1992-12-01), Bathurst
patent: 5335148 (1994-08-01), Tominaga
Husar Stephen F.
Illinois Tool Works Inc.
LandOfFree
Illuminated knob assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Illuminated knob assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Illuminated knob assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1846984