Projection lamp for vehicle and vehicle
By using the design of lighting light sources, collimating lenses and free curved lens arrays in automotive projection lamps, the problems of complex structure and low light energy utilization in existing automotive projection lamps are solved, and the structure is simplified and the light energy utilization is achieved, forming a clear and uniform lighting pattern.
CN119737587AActive Publication Date: 2025-04-01GOERTEK OPTICAL TECH CO LTD
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Patent Information
- Application Number
- CN202411974637.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2044-12-30
AI Technical Summary
Technical Problem
The existing automotive projection lamps have complex structures, high manufacturing costs and low light energy utilization, which affects lighting effects and performance.
Method used
Using the design of an illumination light source, collimating lens and free-surface lens array arranged along the same optical axis, parallel light beams are received and shaped through the free-surface lens array to form a predetermined illumination pattern.
Benefits of technology
It realizes structural simplification, assembly convenience and high light energy utilization, forming a clear and uniform lighting pattern, suitable for far and near field projection requirements.
✦ Generated by Eureka AI based on patent content.
Abstract
The embodiment of the invention provides a projection lamp for a vehicle and the vehicle. The projection lamp for the vehicle comprises a lighting source, a collimating lens and a free-form surface lens array. The collimating lens is used for collimating the illumination light to form parallel light beams and guiding the parallel light beams to the free-form surface lens array; the free-form surface lens array comprises a substrate and a plurality of free-form surface micro lenses, the free-form surface lens array receives the parallel light beams, and a preset illumination pattern is formed on a target projection surface through the refraction effect of the free-form surface micro lenses; when the target projection surface is in a far field, the distance from the free-form surface lens array to the target projection surface is greater than the diameter of the free-form surface lens array, and the surface types of the free-form surface micro lenses are the same surface type; when the target projection surface is located in a near field, the distance from the free-form surface lens array to the target projection surface is equal to the diameter of the free-form surface lens array, and each free-form surface micro lens is configured to have an independent surface type.
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