Patent ID: 11879608
Assignee: HASCO VISION TECHNOLOGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  B | IPC B  F

Claim 8:
9. A vehicle, comprising:
an automotive lamp module including an automotive lamp optical element and at least one light source, the automotive lamp optical element includes a light-incident portion, a transmission portion and a light-emitting portion connected in sequence;
wherein the light-incident portion is provided with at least one light-incident structure configured to converge light;
wherein an area of a cross section of the transmission portion gradually increases in a light transmission direction, wherein each of four side surfaces of the transmission portion except two end surfaces of the transmission portion is a flared trapezoid in the light transmission direction, and every two opposite side surfaces of the four side surfaces of the transmission portion have a same shape, wherein the cross section of the transmission portion is a cross section perpendicular to an optical axis direction;
wherein a light-emitting convex surface is formed on one end of the light-emitting portion facing away from the transmission portion;
wherein the at least one light source is disposed opposite to and in one-to-one correspondence with the at least one light-incident structure; and
wherein a width W1 of the transmission portion is less than a width W2 of the light-emitting portion, the side surfaces of the transmission portion each are coated with a light absorbing layer, left and right side surfaces of the light-emitting portion are gradually converged toward the optical axis direction in the light transmission direction, so that an incident angle of the converging light emitted from the light-incident portion to the left and right side surfaces of the light-emitting portion is greater than a total reflection critical angle of the light-emitting portion, and the light reflected totally from the left and right side surfaces of the light-emitting portion is transmitted to the light-emitting convex surface and then totally reflected.