Lighting projection assembly and welcome light
The automotive welcome light, with its specific lens combination structure, solves the problem of demanding large and clear projected patterns, improving both projection range and clarity while controlling component length.
CN115978478BActive Publication Date: 2026-03-24HUIZHOU XINGJUYU INTELLIGENT TECH CO LTD
2 Cites 0 Cited by
Patent Information
- Application Number
- CN202211728840.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-12-30
- Publication Date
- 2026-03-24
- Estimated Expiration
- 2042-12-30
AI Technical Summary
Technical Problem
The demand for projected patterns in automotive welcome lights is increasing, with higher requirements for clarity and smaller size, which existing technologies struggle to meet.
Method used
By employing a specific combination of lens structures, including negative and positive power lenses, the pattern range and length of the projection component are controlled by constraining the field of view and total focal length, while simultaneously correcting system chromatic aberration and distortion to improve clarity.
Benefits of technology
It enables flexible adjustment of the projection pattern range from 340mm×130mm to 1900mm×730mm, with a shorter imaging component, higher clarity, and improved production yield.
✦ Generated by Eureka AI based on patent content.
Abstract
The application discloses a kind of lighting projection components and welcome lamp, above-mentioned lighting projection component, including lighting component, imaging component and shell;Imaging component sequentially includes along the image side to object side: the first lens with negative focal length;Second lens with positive focal length;Third lens with positive focal length;The fourth lens with negative focal length;Imaging component satisfies the following conditional formula: 0.150 < tanSemi-Fov × [f / (f2+f3)] <0.349.The lighting projection component provided by the application, the pattern range projected can reach long x wide: 340mm x 130mm to long x wide: 1900mm x 730mm, and the length is shorter, and the projected pattern is clear.
Need to check novelty before this filing date? Find Prior Art