Rotatable Optical Array for Asymmetric LED Light Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
LED lighting systems face challenges in directing light output effectively towards specific areas due to the omnidirectional emission of LEDs, resulting in inefficient illumination patterns.
Innovation Solution
A rotatable optical array with lenses that can be repositioned and aligned with LEDs to modify the light output pattern, allowing for asymmetric light distribution and easy adjustment of illumination direction without reconfiguring the luminaire or light source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If LEDs emit light in all directions, then the light coverage area is maximized, but the illumination intensity in specific desired directions is reduced
Solution Approach 1:
The optical array is divided into multiple individual lenses, each corresponding to a specific LED. Each lens can be independently positioned and oriented to direct light from its associated LED toward a specific desired area, thereby segmenting the omnidirectional emission into targeted directional beams that maintain both coverage and intensity.
Solution Approach 2:
Each lens in the optical array is designed with specific optical properties and orientation to optimize light direction for its corresponding LED's location and function. This local optimization ensures that each region of the array directs light with appropriate intensity and angle, achieving high illumination intensity in specific directions while collectively covering a broad area.
2Ease of manufacture
If the optical array configuration is fixed, then the manufacturing complexity is reduced, but the adaptability to different illumination patterns is limited
Solution Approach 1:
The optical array is designed with movable and adjustable components, allowing the lenses to be repositioned and reoriented after manufacturing. This dynamic configuration enables the same optical array to adapt to different illumination patterns and applications without requiring custom manufacturing for each pattern, thus maintaining manufacturing simplicity while achieving high adaptability.
Solution Approach 2:
The optical array employs standardized lenses and mounting mechanisms that can be universally applied across different LED configurations and illumination requirements. This universal design allows a single optical array type to serve multiple functions and adapt to various illumination patterns, eliminating the need for specialized manufacturing for each application.
3Ease of operation
If the optical array is made adjustable, then the ease of operation for modifying light patterns is improved, but the device complexity increases
Solution Approach 1:
The optical array is segmented into modular lens units that can be independently adjusted. Each lens unit maintains a simple structure but can be individually positioned and oriented, allowing complex light patterns to be achieved through simple combinations of basic modular adjustments, thereby improving ease of operation without significantly increasing overall device complexity.
Solution Approach 2:
Multiple adjustment functions (positioning, orientation, focus) are merged into a single integrated optical array structure. This consolidation allows all adjustments to be made through a unified system rather than separate mechanisms for each function, simplifying the user interface and operational procedures while maintaining the capability to achieve complex illumination 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 flexible and efficient light pattern modification, improving illumination focus and directionality without disrupting the thermal management system, allowing for various light distributions and patterns without structural or electrical modifications.
Implementation Method 1
The optical array has a lens and removably connects to the base. The optical array is repositionable on the base to modify the light output.
Data Source
AI summary
A lighting device includes a housing, a light emitting device, and an optical array. The housing has a base and the light emitting device is connected to the base for producing a light output. The optical array includes a lens and removably connects to the base. The optical array is repositionable on the base to modify the light output.