F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
LIGHTING AND HEATING
 F21
LIGHTING (details specific to arc lamps H05B 31/00)
 F21

Note(s)

  1. Attention is drawn to the explanatory note (III) in section H.
  2. In this class, the following terms are used with the meanings indicated:
    1. "Portable" means "intended to be carried personally".
    2. "Non-portable" means "not intended to be carried personally, even if capable of being moved from place to place".
    3. "Electric" includes "not stated to be non-electric".
 F21M
NON-PORTABLE BEAM LIGHTING DEVICES OR SYSTEMS (signal lighting devices 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 F21M 5/00)
 F21M 3/00
Electric head-lighting or spot-lighting devices or systems for vehicles (F21M 5/00 takes precedence; circuits therefor B60Q; testing alignment thereof 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 (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 H01J, 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 (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 F21M 1/00-F21M 5/00
 F21M 9/00 - 
F21M 13/00
Non-portable non-electric beam lighting devices or systems (burners, combustion apparatus F23)
 F21M 9/00
Non-electric beam lighting or spot-lighting devices or systems other than vehicle head-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 F21M 9/00 and 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