Low-Beam Lamp Optical Modules for Wide and Hot Zone Formation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle lamps, such as low beam lamps, suffer from reduced light output efficiency due to about half of the light being shielded by the primary optical system, which cannot be used for forming a light distribution pattern.
Innovation Solution
A lamp design incorporating a first optical module forming a wide zone and a second optical module forming a hot zone with different guide part shapes and diameters, allowing most light to be utilized for the light distribution pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a shield is used to form a cutoff shape in the primary optical system, then the light distribution pattern can be controlled, but about half of the light is blocked and cannot be used for forming the light distribution pattern
Solution Approach 1:
The optical system is divided into multiple independent optical modules (first optical module for wide zone, second optical module for hot zone). Each module has its own light input part, guide part, and light output part, allowing light to be distributed to different zones without being blocked by a single shield structure.
Solution Approach 2:
Different parts of the optical system are designed with different functions: the first optical module creates a wide zone with lower luminous intensity for peripheral illumination, while the second optical module creates a hot zone with higher luminous intensity for central illumination. Each module's guide part has a specific shape optimized for its zone's requirements.
2Illumination intensity
If a single optical module is used, then the device complexity is reduced, but it cannot simultaneously form both wide zone and hot zone with different luminous intensities
Solution Approach 1:
The optical system is segmented into multiple optical modules, each responsible for a specific zone (wide zone or hot zone). This segmentation allows each module to be optimized for its specific function while maintaining overall system performance.
Solution Approach 2:
Each optical module serves a specific function (forming either wide zone or hot zone), but collectively they perform the multi-function of creating a complete light distribution pattern with both wide and hot zones, different luminous intensities, and proper cutoff shape.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves light output efficiency by effectively using more light for forming the light distribution pattern, enhancing visibility without chromatic aberration issues.
Implementation Method 1
a light input part configured to receive the light output from the light source
Implementation Method 2
a guide part disposed between the light input part and the light output part to guide travel of the light passing through the light input part to the light output part
Data Source
AI summary
Disclosed is a lamp including a first optical module that forms a wide zone of a low beam light distribution pattern, and a second optical module that forms a hot zone of the low beam light distribution pattern having a luminous intensity being higher than a luminous intensity of the wide zone, each of the first optical module and the second optical module includes a light source that outputs light, a light input part, to which the light output from the light source is input, a light output part disposed on a front side of the light input part, and that outputs the light having passed through the light input part, and a guide part disposed between the light input part and the light output part to guide travel of the light having passed through the light input part to the light output part.