|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

LIGHTING AND HEATING

|  | F21 |
LIGHTING (electric aspects or elements Section H, e.g. electric light sources Fulltext... Hierarchy... Expanded...H01J, Fulltext... Hierarchy... Expanded...H01K, Fulltext... Hierarchy... Expanded...H05B)

|  | F21 |
Note(s) Attention is drawn to the note (Note III) following the Contents of Section of Section H. In this class, the following terms are used with the meanings indicated: "Portable" means "intended to be carried personally". "Non-portable" means "not intended to be carried personally, even if capable of being moved from place to place". "Electric" includes "not stated to be non-electric".

|  | F21K |
LIGHT SOURCES NOT OTHERWISE PROVIDED FOR

|  | F21K 2/00 |
Light sources using luminescence (selection of luminescent materials for light screens Fulltext... Hierarchy... Expanded...F21V 9/16; using excitation by radioactivity Fulltext... Hierarchy... Expanded...G21H 3/02, Fulltext... Hierarchy... Expanded...H01J 65/06, Fulltext... Hierarchy... Expanded...H01J 65/08; electroluminescent light sources Fulltext... Hierarchy... Expanded...H05B 33/00) [2]

|  | F21K 2/02 |
( transferred to Fulltext... Hierarchy... Expanded...G21H 3/02, Fulltext... Hierarchy... Expanded...H01J 65/06, Fulltext... Hierarchy... Expanded...H01J 65/08 )

|  | F21K 2/04 |
· | using triboluminescence; using thermoluminescence

|  | F21K 2/06 |
· | using chemiluminescence [3]

|  | F21K 2/08 |
· · | activated by an electric field, i.e. electrochemiluminescence [3]

|  | F21K 5/00 |
Light sources using a charge of combustible materials (illuminating compositions Fulltext... Hierarchy... Expanded...C06B; fireworks Fulltext... Hierarchy... Expanded...F42B 4/00)

|  | F21K 5/02 |
· | ignited in a non-disrupting container, e.g. photo-flash bulb

|  | F21K 7/00 |
Other light sources