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 H01J, H01K, H05B)
 F21

Note(s)

  1. Attention is drawn to the note (Note III) following the Contents of Section of 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 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 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