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US 5,130,904 AGranted
Automotive headlamp waving no ultraviolet output
AssigneeKoito Manufacturing Co., Ltd.
InventorsHirohiko Ohshio, Takashi Hori, Keiichi Inaba
Life of this patent
Estimating the term…
Abstract
An automotive headlamp which cuts off ultraviolet rays generated from a discharge bulb light source, even in the case where the front lens is broken. A reflector is provided having a bulb insertion hole formed in a rear portion thereof, and a socket portion supporting a discharge lamp bulb is attached to the reflector at the bulb insertion hole. A direct-ray shade for shielding direct rays of light is disposed in front of the lamp. An ultraviolet-shielding layer is formed on a front surface of the reflector.
Claims24
An automotive headlamp comprising:
- a reflector having a bulb insertion hole formed in a rear portion thereof;
- a socket portion attached to said reflector at said bulb insertion hole, said socket portion having pair of lead supports projecting therefrom;
- a discharge lamp bulb supported by said pair of lead supports within said reflector;
- a front lens disposed in front of said reflector;
- a direct-ray shade for shielding direct rays of light disposed in front of said lamp;
- and an ultraviolet-shielding layer formed on a surface of said reflector.
3 more elements
Dependencies are inferred from the claim text.