Interchangeable Lens Modules for Selectable Light Distribution
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Solution Overview
Problem
Existing lighting systems with semiconductor light-emitting devices and lenses lack interchangeable lens modules for easy reconfiguration and fail to emit a perceived line of light effectively.
Innovation Solution
A lighting system comprising a semiconductor light-emitting device and multiple lens modules, including converging and diverging lenses with frusto-conical and lenticular or microprismatic features, allowing for detachable and interchangeable configurations to align lens axes with the light emission axes, enabling convergence and divergence of light emissions to form a perceived line of light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple lens modules are provided for different light distribution patterns, then adaptability is improved, but device complexity increases
Solution Approach 1:
A single lens module is designed to perform multiple functions by integrating both a converging lens and a diverging lens into one unit. The converging lens focuses light to form a perceived line of light, while the diverging lens disperses light for area illumination. This multi-functional design allows the lighting system to achieve different light distribution patterns without requiring separate lens modules for each function, thereby improving adaptability while controlling device complexity.
2Ease of operation
If lens modules are made detachable and interchangeable, then ease of operation is improved, but reliability may worsen
Solution Approach 1:
The lighting system is divided into separable components: a lighting module containing the light source and a detachable lens module. This segmentation allows the lens module to be easily removed and replaced to change light distribution patterns. The interface between modules is designed with alignment features including a recessed portion in the lighting module and a corresponding protruding portion in the lens module, ensuring reliable and accurate reconnection after detachment.
3Manufacturing precision
If alignment features are added to ensure proper lens positioning, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
Alignment features are designed with asymmetric geometries to ensure unique and accurate positioning. The recessed portion in the lighting module has a specific asymmetric shape that corresponds to the protruding portion in the lens module. This asymmetric design guarantees that the lens axis automatically aligns with the light emission axis during assembly, achieving high manufacturing precision without requiring complex alignment mechanisms.
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 flexible reconfiguration and efficient light emission patterns, enhancing the lighting system's ability to emit a perceived line of light and improve light distribution.
Implementation Method 1
a first converging lens being configured for causing convergence of some of the light emissions of the semiconductor light-emitting device to form converged light emissions along the central light emission axis
Implementation Method 2
a first diverging lens being configured for causing divergence of some of the converged light emissions away from the third lens axis by a third HWHM to form diverged light emissions that diverge away from the central light emission axis
Implementation Method 3
the first converging lens further having a first total internal reflection side surface being spaced apart around the first lens axis and having a first frusto-conical shape extending between the first light input and output surfaces
Implementation Method 4
the third light input surface including a first lens screen having lenticular or microprismatic features
Data Source
AI summary
Lighting system including: lighting module having semiconductor light-emitting device; first lens module; and second lens module. First lens module may include: converging lens; or diverging lens having light output surface including raised region shaped as sliced torus; or diverging lens having light output surface including contoured lens screen having lenticular or microprismatic features. Converging lens may have total internal reflection side surface with frusto-conical shape. Second lens module may include diverging lens having light output surface spaced apart from light input surface that may include lens screen having lenticular or microprismatic features. Lighting system may include additional lighting modules and may include further lens modules that may be detachable and interchangeable.