IPC 6 English version F21V !A-F21V 37/00

F21V-F21V03700

SECTION F– MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F 21

LIGHTING (electric aspects or elements, see section H, e.g. electric light sources H 01 J, H 01 K, H 05 B)

F 21 V

DETAILS OF LIGHTING DEVICES, OF GENERAL APPLICATION

Note

This subclass covers only those details of lighting devices which are considered to be of a kind applicable to the lighting devices covered by more than one of the subclasses F 21 L, F 21 M, F 21 P, F 21 Q, F 21 S. Such details are classified in this subclass even if they are only stated to be applied to a device of a single subclass.

Details of those parts involved in light emission or distribution (optical elements or systems in general G 02 B)

Shades

Frames

rigid (F 21 V 1/08 takes precedence)

foldable or collapsible

adjustable

Rotating shades

Composite shades

Covers for frames; Frameless shades

characterised by the material

the material being paper

the material being glass

the material being plastics

the material being metal

Manufacturing shades

Globes; Bowls; Cover glasses (with refracting properties F 21 V 5/00; with reflecting properties F 21 V 7/00)

characterised by the shape

characterised by the material; characterised by surface treatments or coatings

Refractors

of prismatic shape (F 21 V 5/04 takes precedence)

of lens shape

Hanging lustres for chandeliers

producing an asymmetric light distribution (applicable solely to vehicle head-lighting devices F 21 M 3/05, F 21 M 11/00)

Reflectors

adapted to co-operate with point-like light sources; adapted to co-operate with light sources the shape of which is unspecified (F 21 V 7/16 to F 21 V 7/22 take precedence)

Optical design

plane

with parabolic curvature

with hyperbolic curvature

with elliptical curvature

with a combination of different curvatures

Construction

adapted to co-operate with linear light sources, e.g. trough-shaped (F 21 V 7/16 to F 21 V 7/22 take precedence)

adapted to co-operate with light sources of shapes not covered by group F 21 V 7/02 or F 21 V 7/12, e.g. circular (F 21 V 7/16 to F 21 V 7/22 take precedence)

with provision for adjusting the curvature

with provision for folding or collapsing

constructed to facilitate cooling, e.g. with fins (cooling by other means, e.g. fluid, F 21 V 29/00)

characterised by the material; characterised by surface treatments or coatings

Use of light guides, e.g. fibre optic devices, in lighting devices or systems (light guides per se, structural details of arrangements with other optical elements G 02 B 6/00) [4]

Light filters (coloured shades F 21 V 1/00); Selection of luminescent materials for light screens (luminescent materials per se C 09 K 11/00; electroluminescent light sources H 05 B 33/00)

for simulating daylight (F 21 V 9/04, F 21 V 9/06, F 21 V 9/16 take precedence)

for filtering out infra-red radiation (using liquid-filled chambers F 21 V 9/12)

for filtering out ultra-violet radiation (F 21 V 9/16 takes precedence)

for producing coloured light, e.g. monochromatic; for reducing intensity of light (F 21 V 9/16 takes precedence)

with provision for variation of the colour or intensity (F 21 V 9/12 takes precedence)

with liquid-filled chambers

for producing polarised light

Selection of luminescent materials for light screens

11/

Screens not covered by groups F 21 V 1/00, F 21 V 3/00, F 21 V 7/00, F 21 V 9/00

11/

using parallel laminae or strips, e.g. of Venetian-blind type (F 21 V 11/06 takes precedence)

11/

adjustable

11/

using crossed laminae or strips; using lattices or honeycombs

11/

using diaphragms containing one or more apertures

11/

of iris type

11/

of slot type

11/

with many small apertures

11/

using sheets without apertures, e.g. fixed (F 21 V 11/02, F 21 V 11/06 take precedence)

11/

movable, e.g. flaps, slides

13/

Combinations of elements specified in two or more of the groups F 21 V 1/00 to F 21 V 11/00 (combinations of two or more elements covered by a single one of groups F 21 V 1/00 to F 21 V 11/00, see the relevant group)

13/

Combinations of only two kinds of elements

13/

the elements being reflectors and refractors

13/

a reflector being rotatable

13/

the elements being reflectors and filters

13/

the elements being reflectors and screens

13/

Combinations of only three kinds of elements

13/

the elements being reflectors, refractors, and filters

Details of those parts not involved in light emission or distribution, e.g. fittings

15/

Protecting lighting devices from damage

15/

Cages

15/

Resilient mountings, e.g. shock-absorbers (in general F 16 F 15/04)

17/

Fastening of shades, globes, refractors, reflectors, filters, screens, or protective cages (sealing arrangements F 21 V 31/02)

17/

with provision for adjustment (F 21 V 17/04, F 21 V 17/06 take precedence)

17/

the fastening being onto or by the light source

17/

the fastening being onto or by the lamp holder

19/

Fastening of light sources or lamp holders (fastening electric light source solely by the coupling device H 01 R 33/00)

19/

with provision for adjustment, e.g. for focusing

19/

with provision for changing light source, e.g. turret

19/

Attaching mantles or other incandescent bodies to lamp parts

21/

Supporting, suspending, or attaching arrangements for lighting devices (F 21 V 17/00, F 21 V 19/00 take precedence; stands for supporting apparatus or articles in general F 16 M 11/00)

21/

Wall, ceiling, or floor bases, e.g. ceiling rose; Fixing pendants or arms to the bases (F 21 V 21/08 takes precedence; bases for movable standing lamps F 21 V 21/06)

21/

Recessed bases

21/

Bases for movable standing lamps; Fixing standards to the bases (F 21 V 21/08 takes precedence)

21/

Devices for easy attachment to any desired place, e.g. clip, clamp, magnet

21/

Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards (adjustable mounting F 21 V 21/14; construction of posts not peculiar to use with lighting devices E 04 H 12/00)

21/

capable of being elongated or shortened by the insertion or removal of intermediate pieces

21/

Adjustable mountings

21/

using wires or cords

21/

operated by springs

21/

operated by weights

21/

telescopic

21/

Lazy-tongs

21/

Pivoted arms

21/

adjustable in more than one plane

21/

employing universal joints

21/

Pivoted housings or frames

21/

Flexible tubes

21/

Supporting elements displaceable along a guiding element, e.g. rail, wire

21/

Hoisting or lowering devices, e.g. for maintenance (F 21 V 21/14 takes precedence)

21/

with a cable

23/

Arrangements of electric circuit elements in or on lighting devices (electric circuits per se H 05 B 39/00)

23/

the elements being transformers or impedances

23/

the elements being switches (safety devices F 21 V 25/00)

23/

the elements being coupling devices, e.g. for shavers

25/

Safety devices structurally associated with lighting devices (gas-tight or water-tight arrangements F 21 V 31/00; in general F 16 P; protective circuit arrangements per se H 02 H 7/00).

25/

coming into action when lighting device is disturbed, dismounted, or broken

25/

breaking the electric circuit

25/

feeding a quenching fluid to the light source

25/

cutting the incandescent filament

25/

coming into action when lighting device is over-loaded, e.g. thermal switch

25/

Flameproof or explosion-proof arrangements

27/

Cable-stowing arrangements structurally associated with lighting devices, e.g. reels (storing lengths of cable in general B 65 H)

29/

Cooling arrangements

31/

Gas-tight or water-tight arrangements

31/

Sealing arrangements

31/

Provision of filling media (safety devices F 21 V 25/00; cooling arrangements F 21 V 29/00)

33/

Structural combinations of lighting devices with other articles (illuminated articles or apparatus, see the relevant subclass for the articles or apparatus)

35/

Candle holders

36/

Arrangements of mantles or other incandescent bodies on burners (attaching to lamp parts F 21 V 19/06)

36/

in ceiling lamps

37/

Details of liquid-fuel lighting devices, not otherwise provided for