|  | 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".

|  | F21M |
NON-PORTABLE BEAM LIGHTING DEVICES OR SYSTEMS (signal lighting devices Fulltext... Hierarchy... Expanded...F21Q)

|  | F21M 1/00 - F21M 7/00 |
Non-portable electric beam lighting devices or systems

|  | F21M 1/00 |
Electric beam lighting or spot-lighting devices or systems other than vehicle head-lighting devices or systems (with built-in power sources Fulltext... Hierarchy... Expanded...F21M 5/00)

|  | F21M 3/00 |
Electric head-lighting or spot-lighting devices or systems for vehicles (Fulltext... Hierarchy... Expanded...F21M 5/00 takes precedence; circuits therefor Fulltext... Hierarchy... Expanded...B60Q; testing alignment thereof Fulltext... Hierarchy... Expanded...G01M 11/06)

|  | F21M 3/02 |
· | employing point-like light sources; employing light sources of which the shape is not specified

|  | F21M 3/04 |
· · | specially adapted for preventing glare (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F21M 3/06-F21M 3/26 take precedence)

|  | F21M 3/06 |
· · | providing a single shaped beam, e.g. asymmetric beam, e.g. for penetrating fog

|  | F21M 3/08 |
· · · | by the shape of the reflector

|  | F21M 3/10 |
· · · | by the shape of the light source (light sources per se Fulltext... Hierarchy... Expanded...H01J, Fulltext... Hierarchy... Expanded...H01K)

|  | F21M 3/12 |
· · · | by the shape of the refractor

|  | F21M 3/14 |
· · · | by the provision of screens or non-reflecting parts

|  | F21M 3/16 |
· · | providing two or more separate reflectors (Fulltext... Hierarchy... Expanded...F21M 3/18 takes precedence)

|  | F21M 3/18 |
· · | with provision for changing shape or direction of the beam

|  | F21M 3/20 |
· · · | by changing shape or position of reflector

|  | F21M 3/22 |
· · · | by changing position of light source

|  | F21M 3/24 |
· · | with provision for periodically chopping the beam

|  | F21M 3/25 |
· · | emitting coloured light

|  | F21M 3/26 |
· · | emitting polarised light

|  | F21M 3/28 |
· | employing linear light sources

|  | F21M 3/30 |
· | employing light sources of shapes not covered by the preceding sub-groups

|  | F21M 5/00 |
Electric beam lighting devices or systems with built-in power sources

|  | F21M 5/02 |
· | the power source being a battery or an accumulator

|  | F21M 5/04 |
· | the power source being a generator

|  | F21M 7/00 |
Details of kinds solely applicable to the devices or systems covered by groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F21M 1/00-F21M 5/00

|  | F21M 9/00 - F21M 13/00 |
Non-portable non-electric beam lighting devices or systems (burners, combustion apparatus Fulltext... Hierarchy... Expanded...F23)

|  | F21M 9/00 |
Non-electric beam lighting or spot-lighting devices or systems other than vehicle head-lighting or spot-lighting devices or systems

|  | F21M 11/00 |
Non-electric head-lighting or spot-lighting devices or systems for vehicles

|  | F21M 13/00 |
Details of kinds solely applicable to the devices or systems covered by groups Fulltext... Hierarchy... Expanded...F21M 9/00 and Fulltext... Hierarchy... Expanded...F21M 11/00

|  | F21M 15/00 |
Non-portable beam lighting or spot-lighting devices or systems employing combinations of electric and non-electric light sources; Replacing electric by non-electric light sources or vice-versa, in non-portable beam lighting or spot-lighting devices