Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light

Child Classifications

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• F21S 45/10 Protection of lighting devices (cooling of lighting devices F21S45/40; waterproofing of lighting devices F21S45/50)
• F21S 45/20 Promoting gas flow in lighting devices, e.g. directing flow toward the cover glass for demisting (ventilation F21S45/30; forced cooling F21S45/42)
• F21S 45/30 Ventilation or drainage of lighting devices
• F21S 45/40 Cooling of lighting devices
• F21S 45/50 Waterproofing
• F21S 45/60 Heating of lighting devices, e.g. for demisting
• F21S 45/70 Prevention of harmful light leakage