Vehicular lamp

Details Vehicular lamp Vehicular lamp

2007-07-17

2007-07-17

Husar, Stephen F (Department: 2875)

Illumination

Automatic substitution of power supply or light source

C362S259000, C362S276000, C362S464000, C362S543000, C315S077000, C315S080000

Reexamination Certificate

active

11057606

ABSTRACT:
A vehicular lamp has light source units connected in parallel, an output controlling switch operable to intermittently carry an electric current by repeating on and off, an output coil operable to output electric power according to current flowing into said output controlling switch in synchronization when said output switch switches, a selection controlling unit operable to select at least one said light source unit in synchronization when said output controlling switch switches and cause said at least one selected light source to receive the power output from said output coil, and a malfunction detecting unit operable to detect malfunction of each of said light source units, wherein said selection controlling unit selects at least one said light source unit among said light source units from which malfunction is not detected when said malfunction detecting unit detects malfunction of either of said light source units.

REFERENCES:
patent: 6847169 (2005-01-01), Ito et al.
patent: 7105945 (2006-09-01), Shiotsu et al.
patent: 2002-231013 (2002-08-01), None
Patent Abstracts of Japan, Publication No. 2002-231013 dated Aug. 16, 2002, 1 page.

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