CPC Subgroup
F21K 2/04 using triboluminescence; using thermoluminescence
Full Title
Non-electric light sources using luminescence (using excitation by radioactivity G21H3/02, H01J65/06, H01J65/08; using excitation by an external electromagnetic field or by external corpuscular radiation H01J65/04); Light sources using electrochemiluminescence > using triboluminescence; using thermoluminescence