To provide a glass containing little B2O3, whereby when its powder is fired, its thermal expansion curve does not have an inflection point, a non-lead glass is provided containing, as represented by mol % based on the following oxides, from 35 to 41. The illumination apparatus comprises a light source, and an optical member having a refractive surface on a side closer to an irradiation range than the light source. The supply spindle receives a supply reel having a length of ribbon wrapped around the supply reel. A printed circuit board carries the lights and is sandwiched between two heat sinks for dissipating heat from the lights.