Vehicle Lamp Module With Shared Light Guide Unit
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Solution Overview
Problem
Existing vehicle lamps occupy excessive space and fail to meet consumer design demands due to differences in light emitting surfaces when multiple functions are mounted together.
Innovation Solution
A lamp module for vehicles that incorporates multiple light sources and a light guide unit to form two or more types of light distribution patterns, allowing for shared light emitting surfaces and differentiated design, with a first light source emitting through the rear surface and a second light source emitting after reflection from the lower surface of the light guide unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple types of lamps are mounted together to a vehicle, then various lighting functions (low beam, high beam, DRL) are achieved, but the space occupied by the lamps becomes excessively large
Solution Approach 1:
The patent combines multiple light sources (first light source for low beam, second light source for DRL) into a single lamp module that shares a common light guide unit and housing structure. This merging of previously separate lamp assemblies into one integrated unit reduces the overall space occupied while maintaining multiple lighting functions.
Solution Approach 2:
The light guide unit is designed to serve multiple functions by guiding light from different light sources to create different light distribution patterns. The same light guide structure is used for both low beam and DRL functions, making the lamp module universal and multi-functional rather than requiring separate dedicated lamps for each function.
2Adaptability or versatility
If multiple types of lamps are mounted together to a vehicle, then various lighting functions are achieved, but the light emitting surfaces become different from each other, failing to satisfy consumer design demands
Solution Approach 1:
By merging multiple light sources behind a single shared light guide unit, the patent creates a unified light emitting surface appearance. The common optical structure ensures that different lighting functions (low beam, DRL) emerge from the same visual interface, providing design consistency that satisfies consumer aesthetic demands.
Solution Approach 2:
The light guide unit is designed with specific optical properties in different regions to achieve different light distribution patterns from the same physical structure. The local optical characteristics are optimized for different functions while maintaining overall surface uniformity, allowing functional differentiation without compromising design consistency.
3Adaptability or versatility
If a first light source is provided behind the light guide unit and a second light source is provided below the light guide unit, then distinct light distribution patterns are formed, but the structural complexity increases
Solution Approach 1:
The light guide unit is designed as a universal optical component that handles light from multiple sources positioned at different locations. This single multi-functional optical element replaces what would otherwise require multiple separate optical systems, reducing overall structural complexity while enabling diverse light distribution patterns.
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
Enables a single lamp to perform multiple functions, reducing space occupation and enhancing design flexibility by creating distinct light distribution patterns for various functions like low beam and DRL patterns, thereby improving optical efficiency and aesthetic appeal.
Implementation Method 1
at least a portion of light emitted from the first light source is emitted to the outside after passing through the rear surface portion of the light guide unit
Implementation Method 2
at least a portion of light emitted from the second light source is emitted to the outside after being reflected from the lower surface portion of the light guide unit
Data Source
AI summary
According to one aspect of the present disclosure, disclosed is a lamp module for a vehicle, the lamp module including: a first light source and a second light source for forming two or more types of light distribution patterns; and a light guide unit provided on one side of the first light source and the second light source. The first light source is provided behind the light guide unit and faces a rear surface portion of the light guide unit, and the second light source is provided below the light guide unit and faces a lower surface portion of the light guide unit. The light emitted from the first light source is emitted to the outside to form a first light distribution pattern, and the light emitted from the second light source is emitted to the outside to form a second light distribution pattern.