Special-shaped lens, optical system and vehicle lamp

Abstract

The utility model belongs to the technical field of car light, specifically relates to a special-shaped lens, optical system and car light, wherein the special-shaped lens includes: the special-shaped lens has rotation axis L1, and the acute angle beta 1 is formed between rotation axis L1 and the direction of driving, the intersection of the arbitrary plane containing rotation axis L1 and the special-shaped lens forms the contour line, the contour line rotates around rotation axis L1 and forms the special-shaped lens, and the contour line has focal point F, and focal point F is located on rotation axis L1. The utility model can collimate the light ray of focal point F on rotation axis L1 after passing through the special-shaped lens in the arbitrary plane containing rotation axis L1, so the special-shaped lens can realize half collimation function, and then can provide the focal line of arbitrary direction for the next light emitting unit, and the focal line is the rotation axis L1 of the special-shaped lens, so as to ensure that the optical axis of the whole optical system is still parallel to the direction of driving even in the case of the light axis deviation of the light emitting unit in the inclined car light modeling, and the projected light is located in the road center.

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