Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters

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

Related Keywords

Child Classifications

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• F21V 9/02 for simulating daylight
• F21V 9/04 for filtering out infrared radiation
• F21V 9/06 for filtering out ultraviolet radiation
• F21V 9/08 for producing coloured light, e.g. monochromatic; for reducing intensity of light
• F21V 9/14 for producing polarised light
• F21V 9/2 Dichroic filters, i.e. devices operating on the principle of wave interference to pass specific ranges of wavelengths while cancelling others
• F21V 9/3 Elements containing photoluminescent material distinct from or spaced from the light source
• F21V 9/4 with provision for controlling spectral properties, e.g. colour, or intensity