| 摘要 |
PURPOSE:To provide an LED array head which can eliminate the reverse operation of an input signal with simple assembling by providing a wire on the back surface of an insulator placing the array. CONSTITUTION:The first wires 36, 27, 38 are formed directly on an insulating substrate 31. An insulator 39 is formed on the wire 36 except both ends, and the second wires 40-43 are formed thereon. An LED array 32 is placed on the wire 40, and drive ICs 32, 34 are place on the wires 42, 37. The wire 36 extends to the opposite side of the array 32 from one side placed with drive ICs 33, 34. This wire 36 connects a light emitting unit of, for example, odd number of the array 32 mounted with a terminal at the opposite side to the terminal of the IC 34, and the wires 44, 45 connect both terminals to the wire 36. The wire 41 connects the light emitting unit of, for example, even number of the array 32 to the wire 46, which is connected via the wire 47 to the IC 33. |
