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US 5,964,515 AGranted
Indicating instrument for vehicle
AssigneeDenso Corporation
InventorsHirofumi Ikeuchi, Tsutomu Yoshikawa, Takao Yagami, Hirokazu Shibata
Life of this patent
Estimating the term…
Abstract
A straight cold cathode fluorescent lamp is detachably held at the back of a dial plate by a plurality of fork-shaped holders to illuminate a plurality of scales formed on the front surface of the dial plate and accommodated in the reflector which is also detachably fixed to a casing of the indicator instrument. A circuit board is also detachably fixed to the reflector.
Claims18
An indicating instrument for a vehicle, said instrument comprising:
- a casing;
- a longitudinally extending dial plate fixed in place relative to said casing, said dial plate having a plurality of indicating gauges disposed on a front surface thereof;
- a light source disposed to extend in the longitudinal direction of said dial plate;
- a light conducting plate disposed on the back surface of said dial plate, said light conducting plate having a light incidence surface facing said light source;
- and
- a reflector, for reflecting light of said light source to said light incidence surface of said light conducting plate, detachably fixed to said casing.
3 more elements
An indicating instrument for a vehicle, said instrument comprising:
- a casing;
- a longitudinally extending dial plate fixed in place relative to said casing, said dial plate having a plurality of indicating gauges disposed on a front surface thereof;
- a light source disposed to extend in the longitudinal direction of said dial plate;
- and
- a reflector, disposed in said casing, for accommodating said light source and reflecting light of said light source to said dial plate;
- wherein said casing comprises a first member for detachably fixing said reflector to be removed in the longitudinal direction of said dial plate, and
- said casing has an opening for allowing said reflector and said light source to pass therethrough when they are removed from said case in the longitudinal direction of said dial plate.
4 more elements
An indicating instrument for a vehicle, said instrument comprising:
- a dial plate;
- a longitudinally extending discharge lamp having a heater;
- a light conducting plate disposed on the back surface of said dial plate, said light conducting plate having a light incidence surface facing said discharge lamp;
- a reflector for reflecting light of said discharge lamp to said light incidence surface, said discharge lamp being fixed to said reflector;
- and
- a thermosensitive power supply circuit for supplying electric power to said heater according to a temperature of said discharge lamp.
3 more elements
Dependencies are inferred from the claim text.