lamp
By using an L-shaped top-emitting LED array and reverse ray tracing optical simulation technology to optimize LED arrangement, the problem of uneven light intensity distribution in existing LED retrofits has been solved, achieving efficient high-beam applications that comply with ECE R112 Class B regulations.
CN116867998BActive Publication Date: 2026-07-21OSRAM GMBH
View PDF 6 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- OSRAM GMBH
- Filing Date
- 2022-02-15
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
Existing LED retrofit lights are difficult to comply with ECE R112 regulations, especially in the high beam function where the light intensity distribution is uneven and it is difficult to meet the requirements of Class B regulations.
Method used
An L-shaped top-emitting LED array is used, combined with reverse ray tracing optical simulation technology, to optimize the LED arrangement and ensure that the light intensity distribution around the center point of HV(0,0) meets regulatory requirements.
Benefits of technology
It achieves higher light intensity and more uniform light distribution, meets the requirements of ECE R112 Class B regulations, and improves the light efficiency of high beam applications.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN116867998B_ABST
Abstract
A lamp (10) that can be used, for example, as a modified automotive lamp (10) for motor vehicles includes a lamp body (12, 161, 162, 20) extending between a proximal base portion (101) and a distal front portion (102), and includes a support member (12) having opposing first and second sides. A first solid-state light source array (141) and a second solid-state light source array (142) are arranged on each of these sides. The first solid-state light source array has an optically coupled shield (150) for providing low beam illumination, and the second solid-state light source array is located between the base portion (101) and the first solid-state light source array (141) and configured to provide high beam illumination. The second solid-state light source array (142) includes: a first light source row (144; 1420, 1421) extending longitudinally in the lamp body (12, 161, 162, 20) between the proximal side (1421) of the second array (142) facing the proximal base portion (101) and the distal side (1420) of the second array (142) facing the first solid-state light source array (141); and a second solid-state light source row (146; 1420, 1422) extending laterally in the lamp body (12, 161, 162, 20) of the second array (142) facing the distal side (1420) of the second array (142).
Need to check novelty before this filing date? Find Prior Art