PRINTED WIRING BOARD, PRINTED WIRING BOARD ASSEMBLY, MANUFACTURING METHOD OF PRINTED WIRING BOARD, AND LIGHTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a printed wiring board which prevents a reflector layer from being scratched and prevents absorption of dust and dirt in a manufacturing process.SOLUTION: A flexible printed wiring board 100 includes a reflector layer 6 on a surface. The reflector layer is formed including an opening 9 provided at a predetermined region. Further, a protection film 10, which includes an opening 12 corresponding to the opening of the reflector layer 6 and is laminated on a reflection surface 6a of the reflector layer so as to be peeled, is provided on the reflector layer.