Vehicle Lamp Optical Layout With Integrated Total Reflection Lenses
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Solution Overview
Problem
Existing vehicle lamps face limitations in design flexibility due to the use of aspherical lenses with single focal points, leading to complex structures and high manufacturing costs, making it difficult to meet consumer needs and improve light distribution patterns.
Innovation Solution
A vehicle lamp design incorporating multiple light source units and integrated total reflection lenses that form distinct light distribution patterns, allowing for a high beam pattern by overlapping different light distributions, simplifying assembly and reducing tolerance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an aspherical lens with a single focal point is used to form a light distribution pattern, then the light distribution pattern can be formed, but the design flexibility is limited and it is difficult to satisfy rapidly changing consumer needs
Solution Approach 1:
The patent divides the optical system into multiple independent lens units (first lens unit, second lens unit, third lens unit) instead of using a single aspherical lens. Each lens unit can be independently designed and optimized for specific light distribution patterns, enabling greater design flexibility while maintaining manageable complexity through modular architecture.
Solution Approach 2:
The patent creates a multi-functional optical system where different lens units can form different light distribution patterns (long-range, short-range, and other patterns). The same optical system can serve multiple functions by activating different lens units, providing adaptability to various lighting requirements without requiring completely different optical systems for each function.
2Adaptability or versatility
If different optical systems are used to form long-range and short-range light distribution patterns, then various light distribution patterns can be achieved, but the structure becomes complicated and manufacturing costs increase
Solution Approach 1:
The patent segments the optical system into separate lens units, each responsible for specific light distribution functions. This segmentation allows each lens unit to be manufactured independently using standardized processes, simplifying the overall manufacturing process compared to creating entirely different optical systems for different functions.
Solution Approach 2:
The patent merges multiple lens units into a single integrated optical assembly that can produce various light distribution patterns. By combining multiple lens units in one housing structure, the patent achieves pattern variety while maintaining a unified, manageable structure that simplifies manufacturing compared to separate optical systems.
3Productivity
If multiple lens units are used to form different light distribution patterns, then design flexibility and light efficiency are improved, but the number of components increases
Solution Approach 1:
The patent combines multiple lens units within a single housing structure and integrates them with the light source unit into one assembled component. This merging approach increases light efficiency by allowing multiple light distribution patterns from the same physical assembly, while the integrated design minimizes the increase in component count by sharing structural elements.
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
The design simplifies assembly, minimizes tolerance, and enhances light efficiency while providing improved visibility and design flexibility, meeting consumer demands.
Implementation Method 1
a first total reflection lens including a first lens structure configured to condense light radiated from the plurality of first light source parts and to emit the light to a front side of the vehicle lamp
Implementation Method 2
an emission lens including a first emission lens part disposed adjacent to the first total reflection lens on front side of the vehicle lamp and a second emission lens part disposed adjacent to the second total reflection lens on front side of the vehicle lamp
Data Source
AI summary
A vehicle lamp including a first light source unit including a plurality of first light source parts, a second light source unit including a plurality of second light source parts, a first total reflection lens including a first lens structure that condenses light radiated from the plurality of first light source parts and emits the light to the front, a second total reflection lens formed integrally with a plurality of second lens structures that condenses light radiated from the plurality of second light source parts and emits the light to the front and formed integrally on the other side of the first total reflection lens, and an emission lens including a first emission lens part disposed in front of the first total reflection lens and a second emission lens part disposed in front of the second total reflection lens.