Illumination – Illuminated scale or dial – Internal light source
Patent
1995-05-30
1996-07-02
Yeung, James C.
Illumination
Illuminated scale or dial
Internal light source
362 26, 362 31, 362330, 362331, 116 281, 116DIG20, G01D 1128
Patent
active
055329080
ABSTRACT:
A lighting device for a zigzag-operated shift lever, wherein an indicator plate is light-transmissible, the indicator plate has a two-layer structure having an upper member, in which the upper surface other than the area of a position indicator is shaded and the position indicator is illuminated by lighting means, and a lower member, in which the light from the lighting means is transmitted to the peripheral portion of a operation groove at the indicator plate so that the peripheral portion of the operation groove is illuminated. A portion of the light from the lighting means passes through the upper member so that the position indicator is illuminated. Because nothing shades the upper surface of the lower member, the remaining portion of the light is repeatedly reflected by the border between the upper and lower members and by the lower surface of the lower member. The light is transmitted to the peripheral portion of the operation groove within the lower member. As a result, the area of the position indicator, the side surfaces of the operation groove at the driver's seat side and the front passenger's seat side are illuminated.
REFERENCES:
patent: 2740372 (1956-04-01), Sturges
patent: 4137864 (1979-02-01), Lauper
patent: 4765701 (1988-08-01), Cheslak
patent: 4964359 (1990-10-01), Richmond
patent: 4980803 (1990-12-01), Richmone et al.
patent: 4991535 (1991-02-01), Kobayashi et al.
patent: 5159892 (1992-11-01), Hara et al.
Harada Shoichi
Seki Yoshiyuki
Shimizu Etsuo
Suzuki Kenji
Yokoyama Yoshinobu
Cariaso Alan B.
Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
Yeung James C.
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