The improved projector type headlight according to the present invention comprises a reflector having two focuses, an HID bulb of which the discharging portion is located near the first one of the two focuses, and a convex lens which converges and projects rays of light emitted from the HID bulb and...http://www.google.com.au/patents/US5526248?utm_source=gb-gplus-sharePatent US5526248 - Projector type headlight with color-suppression structure
