Lighting Device with Movable Reflector for Adjustable Light Distribution
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Solution Overview
Problem
Conventional LED lighting devices lack flexibility in adjusting light distribution angles and ranges, which can lead to intensified light emission, potentially causing eye strain and limiting user-adjustable lighting effects.
Innovation Solution
The proposed lighting device features a movable optical member and a reflector with adjustable shape, allowing for variable light distribution angles and ranges through the movement of a cap and cover, which changes the inclination of the reflector, enabling independent control of multiple light emitting modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed reflector shape is used, then the device structure is simple, but the light distribution angle and range cannot be adjusted
Solution Approach 1:
The reflector is designed with a movable optical member that can change its shape dynamically. The optical member is positioned at different locations to reflect light at different angles, allowing the light distribution pattern to be adjusted from a concentrated spot to a wider area, thus resolving the contradiction between fixed structure and adjustable light distribution.
Solution Approach 2:
The lighting device is divided into multiple light emitting modules arranged in specific patterns (e.g., triangular arrangements). Each module can be independently controlled, and the optical member can be positioned at different segments or locations to achieve different light distribution effects, enabling versatility without requiring complete structural redesign.
2Object-affected harmful factors
If light is emitted directly without reflection adjustment, then the lighting device is simple to operate, but the light intensity is intensified and may cause eye strain
Solution Approach 1:
The optical member can be dynamically positioned at different locations to change the reflection angle and light distribution pattern. This allows the system to automatically adjust light intensity and spread to reduce eye strain, maintaining ease of operation while eliminating the harmful effect of intensified light.
Solution Approach 2:
By changing the position parameter of the optical member, the light distribution characteristics (angle, range, intensity) are adjusted. This parameter change allows the system to mitigate eye strain by spreading light over a wider area or adjusting intensity, while the adjustment process remains simple and automated.
3Adaptability or versatility
If multiple light emitting modules are controlled independently, then lighting flexibility is improved, but the control system complexity increases
Solution Approach 1:
The lighting device is segmented into multiple independently controllable light emitting modules (e.g., first light emitting module, second light emitting module). Each module can be controlled separately to create different lighting patterns and effects. The control system manages these segments through simple switching mechanisms, achieving lighting flexibility without excessive complexity.
Solution Approach 2:
The control system is designed to universally control multiple light emitting modules through a unified control architecture. The same control unit can switch between different modules and patterns, providing multi-functionality and lighting flexibility while avoiding the need for separate complex control systems for each module.
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 provides users with customizable lighting effects by adjusting light distribution, mitigating eye strain and enhancing user satisfaction through adaptable light emission patterns.
Implementation Method 1
a reflector which is disposed between the body and the optical member and reflects light emitted from the light emitting module
Data Source
AI summary
A lighting device includes a driving unit, a body arranged under the driving unit, a first light emitting module powered by the driving unit and disposed in a first area of the body, a second light emitting module powered by the driving unit and disposed in a second area of the body surrounding the first area, a first reflector surrounding the first light emitting module, and a second reflector surrounding the second light emitting module, and the first reflector. The driving unit controls the first light emitting module and the second light emitting module independently of each other.