PROBLEM TO BE SOLVED: To provide an inexpensive lighting device that has a high irradiation efficiency, is lightweight to be convenient to attach and is hard to damage, and to provide a lighting system using the lighting device.SOLUTION: The lighting device 200 has a fluorescent tube 210 and a cover 100 covering the fluorescent tube 210. The cover 100 includes a base material 110 having at least light transmission properties, and a light reflection layer 120 provided on the outer surface of the base material 110, and reflecting light emitted from the fluorescent tube 210 and penetrating the base material 110.COPYRIGHT: (C)2012,JPO&INPIT【課題】照射効率が高く、軽量で取付けに便利であり、損傷し難い安価な照明器具およびその照明器具を用いた照明システムを提供することを目的とする。【解決手段】蛍光管210と蛍光管210を覆う笠100とを有する照明器具200において、笠100は、少なくとも透光性を有する基材110と、基材110の外面に設けられ、蛍光管210から照射され基材110を透過した光を反射する光反射層120と、を備えることを特徴とする。【選択図】図1
