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

LIGHTING AND HEATING

|  | F21 |
LIGHTING (details specific to arc lamps Fulltext... Hierarchy... Expanded...H05B 31/00)

|  | 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 (using excitation by another light source Fulltext... Hierarchy... Expanded...F21V 9/16; lamps, other than those in which all the electrodes are within the vessel, in which a screen or coating is excited to luminesce by radioactive located inside the vessel Fulltext... Hierarchy... Expanded...H01J 65/08; using electroluminescence Fulltext... Hierarchy... Expanded...H05B 33/00)

|  | F21K 2/02 |
· | excited by radiation from radioactive material

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

|  | F21K 5/00 |
Light sources using a charge of combustible material (illuminating compositions Fulltext... Hierarchy... Expanded...C06B)

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

|  | F21K 7/00 |
Other light sources