Vehicle Lamp Module with Tilted Light Source and Reflector
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Solution Overview
Problem
Vehicle lamps with multiple modules struggle to create a unified appearance while forming different beam patterns due to varying light irradiation directions, making it difficult to achieve a cohesive design.
Innovation Solution
A lamp module design that includes a light source unit, an optical unit, and a reflection unit, where the light source chip is tilted relative to the optical axis, and the reflection unit has a curved surface with a knurled structure, allowing for adjustable light distribution and beam pattern formation without altering the optical axis, enabling multiple modules to create a unified appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple lamp modules are used to form different beam patterns, then the illumination function is improved, but the appearance unity deteriorates
Solution Approach 1:
The lamp module is divided into functionally independent components: a light source unit with tilted light sources, an optical unit with asymmetric lens, and a reflection unit with tilted central axis. Each segment can be optimized for specific beam patterns while maintaining consistent external appearance through standardized housing and optical axis alignment.
Solution Approach 2:
The patent employs asymmetric design in multiple components: the light sources are tilted at different angles relative to the optical axis, the reflection unit has a central axis tilted at a specific angle, and the optical unit uses an asymmetric lens. These asymmetric arrangements enable different beam patterns to be generated from modules with identical external appearance.
2Adaptability or versatility
If light sources are tilted at different angles to form different beam patterns, then the beam pattern diversity is improved, but the structural complexity increases
Solution Approach 1:
A single lamp module design serves multiple functions by incorporating tilted light sources and a tilted reflection unit that can generate different beam patterns. The same modular structure can be used for various lighting applications (headlights, fog lights, turn signals) by adjusting the tilt angles, eliminating the need for multiple specialized module designs.
Solution Approach 2:
The patent enables dynamic beam pattern adjustment through the tilted configuration of light sources and reflection units. By varying the tilt angles within the standardized module structure, different illumination patterns can be achieved, providing adaptability without requiring physical reconfiguration or additional complex mechanisms.
3Adaptability or versatility
If the optical axis is changed to adjust beam patterns, then the beam direction is improved, but the appearance consistency deteriorates
Solution Approach 1:
Instead of changing the optical axis direction to adjust beam patterns, the patent introduces angular tilting of light sources and reflection units as an additional degree of freedom. The optical axis remains consistent for appearance purposes, while the tilted components redirect light in different directions, effectively separating the appearance orientation from the beam direction control.
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
This design allows for varied beam patterns while maintaining a unified appearance across multiple lamp modules, enhancing aesthetic appeal and functionality by adjusting the position of light source and reflection units without changing the optical axis, thus improving the overall appearance and performance of vehicle lamps.
Implementation Method 1
a light source unit that generates light; an optical unit that forms a predetermined beam pattern by transmitting the light generated by the light source unit therethrough
Implementation Method 2
a reflection unit that reflects the light generated by the light source unit to be incident upon the optical unit. In particular, the light source unit may include a light source chip, which is spaced apart laterally from an optical axis of the optical unit, and the light source chip may be disposed to allow a central line that passes through the middle of both sides of a light-emitting surface formed by at least one light source to be tilted with respect to the optical axis of the optical unit
Data Source
AI summary
A lamp module includes a light source unit that generates light, an optical unit that forms a predetermined beam pattern by transmitting the light generated by the light source unit therethrough, and a reflection unit that reflects the light generated by the light source unit to be incident upon the optical unit. In particular, the light source unit includes a light source chip, which is spaced apart laterally from an optical axis of the optical unit, and the light source chip is disposed to allow a central line that passes through middle of both sides of a light-emitting surface formed by at least one light source to be tilted with respect to the optical axis of the optical unit by an angle that is different from an angle that a central axis of the reflection unit forms with respect to the optical axis of the optical unit.