LIGHT SOURCE FOR LIGHTING, LIGHTING DEVICE, AND MANUFACTURING METHOD OF LIGHT SOURCE FOR LIGHTING

摘要

PROBLEM TO BE SOLVED: To provide a straight tube LED lamp which enables an LED substrate to be securely fixed to a housing and achieves good light distribution characteristics.SOLUTION: A straight tube LED lamp 1 includes: a straight tube type housing 20; a long substrate 120 disposed in the housing 20 and where LED elements 100 are disposed on a surface; and an adhesive 30 which is disposed between an inner surface of the housing 20 and a rear surface of the substrate 120 and contacts with the housing 20 and the substrate 120. The substrate 120 is separated from the inner surface of the housing 20.