Combinations of only two kinds of elements

Introduced: September 1968

Last revised: January 2006

Full Title

Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups > Combinations of only two kinds of elements

Classification Context

Section:: MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:: LIGHTING
Subclass:: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR

3 direct subcodes

Child Classifications

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F21V 13/04 the elements being reflectors and refractors
F21V 13/08 the elements being filters or photoluminescent elements and reflectors
F21V 13/1 the elements being reflectors and screens