Patent ID: 8393769

Claim:
A projector headlight, comprising: a light source; at least one ellipsoidal reflector having a first focus and a second focus, and the first focus located substantially at the light source; a projector lens having both a focus and an optical axis located substantially on an imaginary line connecting the first focus and the second focus of the at least one ellipsoidal reflector, and the focus of the projector lens being located substantially at the second focus of the at least one ellipsoidal reflector; and a shade having a top surface, a first top edge line, a second top edge line, a third top edge line, a front surface, a first front edge line, a second front edge line, a third front edge line and a neutral point, the top surface including the first top edge line, the second top edge line and the third top edge line, the front surface including the first front edge line, the second front edge line and the third front edge line, each of the first front edge line, the second front edge line and the third front edge line located so as to respectively face the first top edge line, the second top edge line and the third top edge line, the neutral point being an intersection of a virtual extending line of the second top edge line and another virtual line that passes at an intersection of the first top edge line and the third top edge line while intersecting with the virtual extending line of the second top edge line at a right angle, the neutral point located substantially at the focus of the projector lens and configured to form a horizontal cut-off line for both a driving lane and an oncoming lane with light emitted from the light source, and wherein each of the first, second and third front edge lines is respectively located closer to the projector lens than the first, second and third top edge line, and the first top edge line is located further upwards in a vertical direction of the projector headlight than the virtual extending line of the second top edge line.