The headlamp is about 50% thinner than conventionally-designed lamps, which eases car body design constraints while saving power and mass. Honda call it the "Jewel Eye™" headlamp.
The headlamp's novel optics combine reflection, refraction, and total internal reflection in mono-lens units with an extreme low thickness and high optical efficiency. "Direct projection" means the optical system uses no reflector—only lenses and light sources.
Principle: Direct projection lens with combination of reflection and refraction
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