| IPC 7 English version |
| F21V-F21V01720 |
F21V 19/00 - F21V 37/02  |
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| SECTION F – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
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| F 21 | LIGHTING (electric aspects or elements, see section H, e.g. electric light sources H01J, H01K, H05B) |
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| F 21 V | FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR [1,7] |
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| Note |
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| In this subclass, it is desirable to add the indexing codes of subclasses F21W and F21Y. The indexing codes should be unlinked. [7] |
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| Subclass Index |
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| DETAILS OF PARTS INVOLVED IN LIGHT EMISSION OR DISTRIBUTION |
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| Shades; globes; refractors; reflectors |
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| Light guides |
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| Light filters |
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| Other screens |
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| Combinations of elements |
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| Changing characteristics or distribution of the light |
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| DETAILS OF PARTS NOT INVOLVED IN LIGHT EMISSION OR DISTRIBUTION |
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| Fastening |
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| Arrangements for supporting or suspending |
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| Arrangements of electric circuit elements |
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| Cable stowing |
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| Protection; safety; cooling; tightness |
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| Combinations with other articles |
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| Candle holders |
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| Arrangements of mantles or burners |
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| Details of combustion lighting |
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| Details of those parts involved in light emission or distribution (optical elements or systems in general G02B) |
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1/ | 00 | Shades |
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1/ | 02 | . | Frames |
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1/ | 04 | . | . | rigid (F21V 1/08 takes precedence) |
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1/ | 06 | . | . | foldable or collapsible |
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1/ | 08 | . | . | adjustable |
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1/ | 10 | . | Rotating shades |
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1/ | 12 | . | Composite shades |
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1/ | 14 | . | Covers for frames; Frameless shades |
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1/ | 16 | . | . | characterised by the material |
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1/ | 18 | . | . | . | the material being paper |
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1/ | 20 | . | . | . | the material being glass |
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1/ | 22 | . | . | . | the material being plastics |
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1/ | 24 | . | . | . | the material being metal |
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1/ | 26 | . | Manufacturing shades |
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3/ | 00 | Globes; Bowls; Cover glasses (with refracting properties F21V 5/00; with reflecting properties F21V 7/00) |
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3/ | 02 | . | characterised by the shape |
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3/ | 04 | . | characterised by the material; characterised by surface treatments or coatings |
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5/ | 00 | Refractors |
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5/ | 02 | . | of prismatic shape (F21V 5/04 takes precedence) |
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5/ | 04 | . | of lens shape |
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5/ | 06 | . | Hanging lustres for chandeliers |
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5/ | 08 | . | producing an asymmetric light distribution [1,7] |
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7/ | 00 | Reflectors |
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7/ | 02 | (covered by F21V 7/00) |
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7/ | 04 | . | Optical design (F21V 7/22 takes precedence) [1,7] |
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7/ | 05 | . | . | plane [1,7] |
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7/ | 06 | . | . | with parabolic curvature [1,7] |
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7/ | 07 | . | . | with hyperbolic curvature [1,7] |
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7/ | 08 | . | . | with elliptical curvature [1,7] |
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7/ | 09 | . | . | with a combination of different curvatures [1,7] |
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7/ | 10 | . | Construction (F21V 7/22 takes precedence) [1,7] |
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7/ | 12 | to |
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7/ | 14 | (covered by F21V 7/00) |
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7/ | 16 | . | . | with provision for adjusting the curvature [1,7] |
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7/ | 18 | . | . | with provision for folding or collapsing [1,7] |
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7/ | 20 | . | . | specially adapted for facilitating cooling, e.g. with fins (cooling by other means, e.g. fluid, F21V 29/00) [1,7] |
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7/ | 22 | . | characterised by the material; characterised by surface treatments or coatings |
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8/ | 00 | 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 G02B 6/00) [4] |
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9/ | 00 | Light filters (coloured shades F21V 1/00); Selection of luminescent materials for light screens (luminescent materials per se C09K 11/00; electroluminescent light sources H05B 33/00) |
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9/ | 02 | . | for simulating daylight (F21V 9/04, F21V 9/06, F21V 9/16 take precedence) |
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9/ | 04 | . | for filtering out infra-red radiation (using liquid-filled chambers F21V 9/12) |
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9/ | 06 | . | for filtering out ultra-violet radiation (F21V 9/16 takes precedence) |
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9/ | 08 | . | for producing coloured light, e.g. monochromatic; for reducing intensity of light (F21V 9/16 takes precedence) |
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9/ | 10 | . | . | with provision for variation of the colour or intensity (F21V 9/12 takes precedence) |
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9/ | 12 | . | . | with liquid-filled chambers |
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9/ | 14 | . | for producing polarised light |
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9/ | 16 | . | Selection of luminescent materials for light screens |
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11/ | 00 | Screens not covered by groups F21V 1/00, F21V 3/00, F21V 7/00, F21V 9/00 |
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11/ | 02 | . | using parallel laminae or strips, e.g. of Venetian-blind type (F21V 11/06 takes precedence) |
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11/ | 04 | . | . | adjustable |
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11/ | 06 | . | using crossed laminae or strips; using lattices or honeycombs |
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11/ | 08 | . | using diaphragms containing one or more apertures |
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11/ | 10 | . | . | of iris type |
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11/ | 12 | . | . | of slot type |
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11/ | 14 | . | . | with many small apertures |
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11/ | 16 | . | using sheets without apertures, e.g. fixed (F21V 11/02, F21V 11/06 take precedence) |
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11/ | 18 | . | . | movable, e.g. flaps, slides |
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13/ | 00 | Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V 1/00 to F21V 11/00 (by means of a combination of two or more elements covered by a single one of main groups F21V 1/00 to F21V 11/00, see the relevant group; changing the characteristics or distribution of the light emitted by adjustment of parts F21V 14/00) [1,7] |
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13/ | 02 | . | Combinations of only two kinds of elements |
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13/ | 04 | . | . | the elements being reflectors and refractors |
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13/ | 06 | . | . | . | a reflector being rotatable |
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13/ | 08 | . | . | the elements being reflectors and filters |
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13/ | 10 | . | . | the elements being reflectors and screens |
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13/ | 12 | . | Combinations of only three kinds of elements |
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13/ | 14 | . | . | the elements being reflectors, refractors, and filters |
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14/ | 00 | Changing the characteristics or distribution of the light emitted by adjustment of parts (reflectors with provision for adjusting the curvature F21V 7/16; light filters with provision for variation of colour or intensity F21V 9/10; screens using iris-type diaphragms F21V 11/10; adjustable mountings for lighting devices F21V 21/14) [7] |
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14/ | 02 | . | by movement of light sources [7] |
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14/ | 04 | . | by movement of reflectors [7] |
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14/ | 06 | . | by movement of refractors [7] |
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14/ | 08 | . | by movement of screens [7] |
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| Details of those parts not involved in light emission or distribution, e.g. fittings |
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15/ | 00 | Protecting lighting devices from damage (cooling or heating arrangements F21V 29/00; gas-tight or water-tight arrangements F21V 31/00) |
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15/ | 01 | . | Housings, e.g. material or assembling of housing parts (F21V 15/02 takes precedence) [7] |
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15/ | 015 | . | . | Devices for covering joints between adjacent lighting devices; End coverings [7] |
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15/ | 02 | . | Cages |
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15/ | 04 | . | Resilient mountings, e.g. shock-absorbers (in general F16F 15/04) |
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15/ | 06 | . | Thermal insulation [7] |
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17/ | 00 | Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages (of light sources or light holders F21V 19/00; gas-tight or water-tight arrangements F21V 31/00) |
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17/ | 02 | . | with provision for adjustment (F21V 17/04 to F21V 17/08 take precedence; changing the characteristics or distribution of the light emitted by adjustment of parts F21V 14/00) [1,7] |
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17/ | 04 | . | onto or by the light source |
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17/ | 06 | . | onto or by the lamp holder |
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17/ | 08 | . | onto the supporting or suspending arrangements of the lighting device, e.g. power cords, standards [7] |
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17/ | 10 | . | characterised by specific fastening means or way of fastening (F21V 17/02 to F21V 17/08 take precedence) [7] |
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17/ | 12 | . | . | by screwing [7] |
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17/ | 14 | . | . | Bayonet-type fastening [7] |
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17/ | 16 | . | . | by deformation of parts of the lighting device; Snap action mounting [7] |
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17/ | 18 | . | . | Latch-type fastening, e.g. with rotary action [7] |
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17/ | 20 | . | . | by toggle-action levers [7] |
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 | F21V 19/00 - F21V 37/02 |
