An LED driving circuit, which is not shown, in the LED module 15 supplies the LED 7R in the “GRB” set 10 at {HEAD ~ the left end} of {TAIL ~ the light entrance surface} 12T with a current which is smaller than a current supplied to the LEDs 7R in other LED sets 10 by a predetermined amount 
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An LED driving circuit , which is not shown , in the LED module 15 supplies the LED 7R in the “ GRB ” set 10 at { HEAD ~ the left end } of { TAIL ~ the light entrance surface } 12 T with a current which is smaller than a current supplied to the LEDs 7R in other LED sets 10 by a predetermined amount
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH