Optical system for vehicle lamp and vehicle lamp

A technology for optical systems and car lights, applied in the field of optical systems, can solve problems such as uneven light output and poor user experience, and achieve the effect of preventing bright spots and compact structure

Pending Publication Date: 2020-06-16
长春海拉车灯有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In the prior art, for the optical system in the car lamp, the light emitted by the LED light source is usually emitted directly through a single rear wall light guide, which usually has the technical problem of uneven light emission; and when viewed in the direction of the optical axis of the car lamp , the direct light source is easy to see the LED light source directly, that is, there are technical defects of LED bright spots, and the user experience is not good

Method used

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  • Optical system for vehicle lamp and vehicle lamp
  • Optical system for vehicle lamp and vehicle lamp
  • Optical system for vehicle lamp and vehicle lamp

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Embodiment Construction

[0050] The advantages of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0051] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0052] The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular...

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PUM

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Abstract

The invention provides an optical system for a vehicle lamp and the vehicle lamp. The optical system comprises a light source; a Fresnel lens array which comprises a plurality of Fresnel lens units and is used for converting light rays emitted by the light source into parallel refraction light rays; and a a thick-wall light guide filtering mask. The face, facing the Fresnel lens array, of the thick-wall light guide filtering mask is an incident face. A light emitting part is arranged on one surface, far away from the Fresnel lens array, of the thick-wall light guide filtering mask, optical patterns are arranged on the light incident surface of the thick-wall light guide filtering mask and the light emitting surface of the light emitting part, and the thick-wall light guide filtering mask is used for refracting/scattering light passing through the Fresnel lenses so as to further homogenize the light. After the technical scheme is adopted, the light emitting efficiency and the light emitting uniformity are improved.

Description

technical field [0001] The invention relates to the technical field of vehicle lights, in particular to an optical system for vehicle lights and a vehicle light. Background technique [0002] In the field of automotive lighting, light sources including LED light sources are often used and placed in various automotive lamps including tail lights. In the prior art, for the optical system in the car lamp, the light emitted by the LED light source is usually emitted directly through a single rear wall light guide, which usually has the technical problem of uneven light output; and when viewed from the optical axis direction of the car lamp , It is easy to see the LED light source directly when the light source is directly lit, that is, there are technical defects of LED bright spots, and the user experience is not good. [0003] Therefore, it is necessary to develop an optical system with uniform light output and no LED bright spots and a vehicle lamp with the optical system. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S43/20F21S43/236F21S43/27F21S43/10F21S43/14F21W103/35F21W103/45F21W103/20F21W103/10F21W103/15F21W107/10F21Y115/10
CPCF21Y2115/10F21S43/10F21S43/14F21S43/20F21S43/236F21S43/27F21W2103/10F21W2103/15F21W2103/20F21W2103/35F21W2103/45F21W2107/10B60Q1/2607F21S43/237F21S43/241F21S43/26F21S43/50
Inventor 沈英威张旭许立国张利
Owner 长春海拉车灯有限公司
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