Automotive ground projection combination lamp based on freeform light guide and modular lens group
CN224694361UActive Publication Date: 2026-08-28惠州纳安特汽车部件有限公司
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Patent Information
- Application Number
- CN202522286422.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-10-29
AI Technical Summary
Technical Problem
[0004]本实用新型目的在于提供一种基于自由曲面光导与模块化透镜组的汽车照地投影组合灯,以解决当下所用的初步集成方案为尝试将两个功能模组放入同一个外壳内，但其光学架构并未进行深度优化与协同设计，功耗与体积较大、光斑均匀性差，投影模块的透镜组结构松散、装配依赖人工定位，生产效率低、良品率差、光路一致性难以保证，导致投影图像容易出现畸变、模糊、亮度不均等问题的技术问题
Benefits of technology
[0011]本实用新型一种基于自由曲面光导与模块化透镜组的汽车照地投影组合灯具有以下优点：通过将照地灯模组及投影灯模组设置于由外壳、面罩和后盖围合形成的结构空间内，从根本上解决了分体式方案结构冗余的问题，大幅度减少了总成的体积和重量，能使其适用于车门、外后视镜等狭小安装空间；照地灯模组利用独特的自由曲面光导，通过设置1-2颗LED即可实现大范围、高均匀度照明，解决了传统多LED方案功耗大、均匀性差的问题；投影灯模组通过同轴堆叠和压环固定的结构，确保了各透镜间的同轴度与间距精度，从机械结构上保证了投影图像清晰、无畸变、亮度均匀。
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Smart Images
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Abstract
The utility model belongs to the field of automobile lighting technology, especially relate to a kind of automobile ground projection combination lamp based on free-form surface light guide and modularization lens group, including shell, mask, back cover and ground lamp module and projection lamp module;The ground lamp module and projection lamp module are set in the structural space formed by shell, mask and back cover enclosure;The ground lamp module includes ground lamp PCBA and main light guide lens;The main light guide lens includes the first optical surface of aspherical surface and the second optical surface of irregular free-form surface;The projection lamp module includes projection lamp PCBA, collimating mirror, film sheet and imaging lens group sequentially arranged along optical path direction;The imaging lens group includes at least two optical lenses and a spacer between the optical lenses;One or two LED chips are welded on the ground lamp PCBA and projection lamp PCBA.
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