Articulated Lighting Device with Moveable Source
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Solution Overview
Problem
Conventional lighting devices lack the ability to seamlessly transition between room lighting and task lighting configurations, often requiring multiple devices or complex adjustments to achieve optimal illumination for different environments and tasks.
Innovation Solution
A lighting device with a light permeable body and a moveable light source that can be positioned over an aperture for room lighting or laterally spaced for task lighting, featuring an articulated support system allowing for various configurations, including pivoting and rotating mechanisms to direct light effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the light source is positioned over the aperture to illuminate the interior of the light permeable body, then the room is illuminated by diffuse light, but the light intensity is reduced compared to direct illumination
Solution Approach 1:
The light source is made moveable relative to the light permeable body through an articulated support system, enabling dynamic repositioning between room lighting configuration (over the aperture) and task lighting configuration (laterally spaced). This dynamic capability allows the device to adapt between diffuse room illumination and intense focused lighting as needed
Solution Approach 2:
The lighting device is designed to perform multiple functions: it can provide both room lighting (when the light source is positioned over the aperture for diffuse illumination) and task lighting (when the light source is moved laterally for intense focused illumination). This multi-functionality eliminates the need for separate lighting devices for different lighting needs
2Illumination intensity
If the light source is moved laterally from the aperture for task lighting, then the light intensity is increased for focused illumination, but the device loses its uniform appearance
Solution Approach 1:
The articulated support system enables the light source to be dynamically repositioned between the uniform appearance configuration (over the aperture) and the high intensity task lighting configuration (laterally spaced), allowing users to switch between aesthetic and functional modes as needed
3Device complexity
If a single lighting device is used for both room lighting and task lighting, then the device complexity is reduced, but the ease of operation increases due to the need for repositioning mechanisms
Solution Approach 1:
The articulated support system provides smooth, multi-degree-of-freedom movement of the light source, making it easy to reposition between configurations. The mechanical design allows intuitive adjustment while maintaining structural integrity, balancing the trade-off between device complexity and ease of operation
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 efficient and flexible illumination by allowing the device to adapt between diffuse room lighting and intense task lighting configurations, enhancing usability and versatility while maintaining a uniform appearance in its first configuration.
Implementation Method 1
a light permeable body having an aperture through which light enters the body
Data Source
AI summary
A lighting device includes a light source, a base and an articulated support. The support has a first arm which is rotatable relative to the base about a first axis, a second arm upon which the light source is mounted, and a joint section which connects the second arm to the first arm for movement relative thereto about a second axis which is parallel to the first axis. The second arm is also moveable relative to the joint section about a third axis which intersects, and is orthogonal to, the second axis to change the orientation of the light source relative to the base.