Rotatable Solid State Lighting Modules for Glare Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for solid state lighting (SSL) devices that can produce different light distributions, such as those defined by the US Dark Sky standard, while providing better glare control for outdoor applications, as traditional HPS and HID lamps do not adequately address user comfort and safety concerns.
Innovation Solution
A lamp with rotatable modules and adjustable optical elements that allow for reconfiguration of light distribution in the horizontal plane, featuring a support element with a mounting shaft and heat spreading elements, enabling pivoting of modules to change luminous output orientation and include an optical element for glare control, compatible with HPS or HID lamp sockets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If optical elements are added to shape luminous output in vertical plane for glare control, then glare control is improved, but device complexity increases
Solution Approach 1:
The lamp is divided into multiple independently rotatable modules, each capable of being oriented to control light distribution in different zones. This segmentation allows glare control to be achieved through simple rotational movement of existing modules rather than adding complex optical elements.
Solution Approach 2:
The modules are designed to be rotatable about mounting shafts, enabling dynamic adjustment of light distribution. This dynamic configuration allows the same modular structure to serve both light generation and glare control functions without requiring additional static optical elements.
2Adaptability or versatility
If reflectors or specially designed optical structures are used to achieve different light distributions, then light distribution adaptability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
Instead of using fixed reflectors or specially designed optical structures for different light distributions, the patent employs rotatable modules that can be dynamically oriented to achieve various light distribution patterns. This dynamic approach provides adaptability without increasing structural complexity.
Solution Approach 2:
The light distribution is controlled by changing the orientation parameter of the modules through rotation, rather than by using different physical optical structures. This parameter-based control simplifies the device while maintaining versatility.
3Object-affected harmful factors
If multiple custom-configured luminaries are provided for different applications, then glare control precision is improved, but manufacturing cost and complexity increase
Solution Approach 1:
The modular lamp design with rotatable modules creates a universal solution that can be configured for different glare control requirements through simple orientation changes. This multi-functional approach eliminates the need for multiple custom-configured luminaries, reducing manufacturing costs while maintaining precision.
Solution Approach 2:
The dynamic rotatability of modules allows a single standardized luminaire design to adapt to different application requirements, providing precise glare control without requiring multiple custom-manufactured variants.
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 cost-effective production of SSL devices that can generate various light distributions without the need for reflectors, providing improved glare control and user safety by adjusting luminous output in different zones, enhancing comfort and safety for pedestrians and drivers.
Implementation Method 1
a plurality of modules each comprising a heat spreading element
Data Source
AI summary
A lamp (10) for replacement of a HPS or HID lamp, is disclosed that comprises a support element (13) including a mounting shaft (15) extending therefrom, said mounting shaft being substantially parallel and having lateral displacement relative to a central axis of the lamp and a plurality of modules (20) each comprising a heat spreading element (23) wherein at least one module is mounted on the mounting shaft and is rotatable about the mounting shaft such that said at least one module can be pivoted between a first orientation in which the modules cooperate to define a closed structure; and a second orientation in which the at least one module is pivoted away from at least one neighboring module to define an opened structure. The lamp further comprises a plurality of sets of solid state lighting elements (30) wherein each set is mounted on an outer surface (21) of one of said modules, and a holder (11) for holding the support element (13), wherein the holder comprises a lamp cap (12) to connect the lamp (10) to a power source, wherein the lamp cap is compatible with a socket for the HPS or HID lamp to be replaced. A luminaire including such a lamp is also disclosed.