Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F21
LIGHTING
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F21V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
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29/00
Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
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F21V29/70
characterised by passive heat-dissipating elements, e.g. heat-sinks
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F21V29/77
with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
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F21V29/773
the planes containing the fins or blades having the direction of the light emitting axis
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