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".
 F21V
DETAILS OF LIGHTING DEVICES, OF GENERAL APPLICATION
 F21V

Note(s)

In this sub-class have been included only those lighting device details which were considered to be of a kind applicable to the lighting devices of more than one of the sub-classes F21L, F21M, F21P, F21Q, F21S. Inventions concerned with details of the kinds provided for are to be classified in this sub-class, even though they are only stated to be applied to a device of a single sub-class.

 F21V 1/00 - 
F21V 13/00
Details of those parts involved in light emission or distribution (optical elements and systems in general G02B)
 F21V 1/00
Shades
 F21V 1/02
·  Frames
 F21V 1/04
·  ·  rigid (F21V 1/08 takes precedence)
 F21V 1/06
·  ·  foldable or collapsible
 F21V 1/08
·  ·  adjustable
 F21V 1/10
·  Rotating shades
 F21V 1/12
·  Composite shades
 F21V 1/14
·  Covers for frames; Frameless shades
 F21V 1/16
·  ·  characterised by the material
 F21V 1/18
·  ·  ·  the material being paper
 F21V 1/20
·  ·  ·  the material being glass
 F21V 1/22
·  ·  ·  the material being plastics
 F21V 1/24
·  ·  ·  the material being metal
 F21V 1/26
·  Manufacturing shades
 F21V 3/00
Globes; Bowls; Cover glasses (with refracting properties F21V 5/00; with reflecting properties F21V 7/00)
 F21V 3/02
·  characterised by the shape
 F21V 3/04
·  characterised by the material; characterised by surface treatments or coatings
 F21V 5/00
Refractors
 F21V 5/02
·  of prismatic shape (F21V 5/04 takes precedence)
 F21V 5/04
·  of lens shape
 F21V 5/06
·  Hanging lustres for chandeliers
 F21V 5/08
·  producing an asymmetric light distribution (applicable solely to vehicle head-lighting devices F21M 3/06, F21M 11/00)
 F21V 7/00
Reflectors
 F21V 7/02
·  adapted to co-operate with point-like light sources; adapted to co-operate with light sources the shape of which is unspecified (F21V 7/16-F21V 7/22 take precedence)
 F21V 7/04
·  ·  Optical design
 F21V 7/05
·  ·  ·  plane
 F21V 7/06
·  ·  ·  with parabolic curvature
 F21V 7/07
·  ·  ·  with hyperbolic curvature
 F21V 7/08
·  ·  ·  with elliptical curvature
 F21V 7/09
·  ·  ·  with a combination of different curvatures
 F21V 7/10
·  ·  Construction
 F21V 7/12
·  adapted to co-operate with linear light sources, e.g. trough-shaped (F21V 7/16-F21V 7/22 take precedence)
 F21V 7/14
·  adapted to co-operate with light sources of shapes not covered by group F21V 7/02 or F21V 7/12, e.g. circular (F21V 7/16-F21V 7/22 take precedence)
 F21V 7/16
·  with provision for adjusting the curvature
 F21V 7/18
·  with provision for folding or collapsing
 F21V 7/20
·  constructed to facilitate cooling, e.g. with fins (cooling by other means, e.g. fluid, F21V 29/00)
 F21V 7/22
·  characterised by the material; characterised by surface treatments or coatings
 F21V 9/00
Light filters (coloured shades F21V 1/00); Selection of luminescent materials for light screens («luminescent materials per se C09K 1/00;» electroluminescent light sources H05B 33/00)
 F21V 9/02
·  for simulating daylight (F21V 9/04, F21V 9/06, F21V 9/16 take precedence)
 F21V 9/04
·  for filtering out infra-red radiation (using liquid-filled chambers F21V 9/12)
 F21V 9/06
·  for filtering out ultra-violet radiation (F21V 9/16 takes precedence)
 F21V 9/08
·  for producing coloured light, e.g. monochromatic; for reducing intensity of light (F21V 9/16 takes precedence)
 F21V 9/10
·  ·  with provision for variation of the colour or intensity (F21V 9/12 takes precedence)
 F21V 9/12
·  ·  with liquid-filled chambers
 F21V 9/14
·  for producing polarised light
 F21V 9/16
·  Selection of luminescent materials for light screens
 F21V 11/00
Screens not covered by groups F21V 1/00, F21V 3/00, F21V 7/00, F21V 9/00
 F21V 11/02
·  using parallel laminae or strips, e.g. of Venetian-blind type (F21V 11/06 takes precedence)
 F21V 11/04
·  ·  adjustable
 F21V 11/06
·  using crossed laminae or strips; using lattices or honeycombs
 F21V 11/08
·  using diaphragms containing one or more apertures
 F21V 11/10
·  ·  of iris type
 F21V 11/12
·  ·  of slot type
 F21V 11/14
·  ·  with many small apertures
 F21V 11/16
·  using sheets without apertures, e.g. fixed (F21V 11/02, F21V 11/06 take precedence)
 F21V 11/18
·  ·  movable, e.g. flaps, slides
 F21V 13/00
Combinations of elements specified in two or more of the groups F21V 1/00-F21V 11/00 (combinations of two or more elements covered by a single one of groups F21V 1/00-F21V 11/00, see the relevant group)
 F21V 13/02
·  Combinations of only two kinds of elements
 F21V 13/04
·  ·  the elements being reflectors and refractors
 F21V 13/06
·  ·  ·  a reflector being rotatable
 F21V 13/08
·  ·  the elements being reflectors and filters
 F21V 13/10
·  ·  the elements being reflectors and screens
 F21V 13/12
·  Combinations of only three kinds of elements
 F21V 13/14
·  ·  the elements being reflectors, refractors, and filters
 F21V 15/00 - 
F21V 37/00
Details of those parts not involved in light emission or distribution, e.g. fittings
 F21V 15/00
Protecting lighting devices from damage
 F21V 15/02
·  Cages
 F21V 15/04
·  Resilient mountings, e.g. shock-absorbers (in general F16F 15/04)
 F21V 17/00
Fastening of shades, globes, refractors, reflectors, filters, screens, and protective cages (sealing arrangements F21V 31/02)
 F21V 17/02
·  with provision for adjustment (F21V 17/04, F21V 17/06 take precedence)
 F21V 17/04
·  the fastening being onto or by the light source
 F21V 17/06
·  the fastening being onto or by the lamp holder
 F21V 19/00
Fastening of light sources or lamp holders (fastening electric light source solely by the coupling device H01R 33/00)
 F21V 19/02
·  with provision for adjustment, e.g. for focusing
 F21V 19/04
·  with provision for changing light source, e.g. turret
 F21V 19/06
·  Attaching mantles or other incandescent bodies to lamp parts
 F21V 21/00
Supporting, suspending, or attaching arrangements for lighting devices (F21V 17/00, F21V 19/00 take precedence; stands for supporting apparatus or articles in general F16M 11/00)
 F21V 21/02
·  Wall, ceiling, or floor bases, e.g. ceiling rose; Fixing pendants or arms to the bases (F21V 21/08 takes precedence; bases for movable standing lamps F21V 21/06)
 F21V 21/04
·  ·  Recessed bases
 F21V 21/06
·  Bases for movable standing lamps; Fixing standards to the bases (F21V 21/08 takes precedence)
 F21V 21/08
·  Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
 F21V 21/10
·  Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards (adjustable mounting F21V 21/14; construction of posts not peculiar to use with lighting devices E04H 12/00)
 F21V 21/12
·  ·  capable of being elongated or shortened by the insertion or removal of intermediate pieces
 F21V 21/14
·  Adjustable mountings
 F21V 21/16
·  ·  using wires or cords
 F21V 21/18
·  ·  ·  operated by springs
 F21V 21/20
·  ·  ·  operated by weights
 F21V 21/22
·  ·  telescopic
 F21V 21/24
·  ·  Lazy-tongs
 F21V 21/26
·  ·  Pivoted arms
 F21V 21/28
·  ·  ·  adjustable in more than one plane
 F21V 21/29
·  ·  ·  ·  employing universal joints
 F21V 21/30
·  ·  Pivoted housings or frames
 F21V 21/32
·  ·  Flexible tubes
 F21V 21/34
·  Supporting elements displaceable along a guiding element, e.g. rail, wire
 F21V 21/36
·  Hoisting or lowering devices, e.g. for maintenance (F21V 21/14 takes precedence)
 F21V 21/38
·  ·  with a cable
 F21V 23/00
Arrangements of electric circuit elements in or on lighting devices (electric circuits per se H05B 39/00)
 F21V 23/02
·  the elements being transformers or impedances
 F21V 23/04
·  the elements being switches (safety devices F21V 25/00)
 F21V 23/06
·  the elements being coupling devices, e.g. for shavers
 F21V 25/00
Safety devices structurally associated with lighting devices (gas-tight or water-tight arrangements F21V 31/00; in general F16P; protective circuit arrangements per se H02H 7/00)
 F21V 25/02
·  coming into action when lighting device is disturbed, dismounted, or broken
 F21V 25/04
·  ·  breaking the electric circuit
 F21V 25/06
·  ·  feeding a quenching fluid to the light source
 F21V 25/08
·  ·  cutting the incandescent filament
 F21V 25/10
·  coming into action when lighting device is over-loaded, e.g. thermal switch
 F21V 25/12
·  Flameproof or explosion-proof arrangements
 F21V 27/00
Cable-stowing arrangements structurally associated with lighting devices, e.g. reels (storing lengths of cable in general B65H)
 F21V 29/00
Cooling arrangements
 F21V 31/00
Gas-tight or water-tight arrangements
 F21V 31/02
·  Sealing arrangements
 F21V 31/04
·  Provision of filling media (safety devices F21V 25/00; cooling arrangements F21V 29/00)
 F21V 33/00
Structural combinations of lighting devices with other articles (illuminated articles or apparatus, see the relevant sub-class for the article or apparatus)
 F21V 35/00
Candle holders
 F21V 36/00
Arrangements of mantles or other incandescent bodies on burners (attaching to lamp parts F21V 19/06)
 F21V 36/02
·  in ceiling lamps
 F21V 37/00
Details of liquid-fuel lighting devices, not otherwise provided for