Adjustable LED Step Light with Rotating Head Assembly
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Solution Overview
Problem
Existing stair step lights are limited by fixed positioning and focus, requiring multiple fixtures for varying stair lengths and areas, leading to increased costs and energy consumption, with a need for adjustable, universally applicable, and dimmable solutions for both indoor and outdoor use.
Innovation Solution
A modular LED step light design featuring a junction box, adjustable LED light head assembly with pan rotation and tilt capabilities, integrated dimmer circuit, and color controller, allowing for flexible installation and lighting control, including 0-180 degrees pan rotation and adjustable brightness and color.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed horizontal or vertical step light fixtures are used, then the junction box can be installed in a specific position, but the positioning is limited and requires different fixtures for different orientations
Solution Approach 1:
The patent implements a rotatable LED light head assembly that can be adjusted to different orientations (horizontal, vertical, and intermediate positions) within a single fixture. The light head rotates on a pivot mechanism allowing adaptation to any junction box orientation without requiring multiple specialized fixtures, thus resolving the contradiction between adaptability and device complexity.
Solution Approach 2:
The single step light fixture is designed to perform multiple functions by accommodating both horizontal and vertical junction box installations, as well as intermediate positions. The universal design eliminates the need for separate horizontal and vertical fixtures, reducing the variety of fixture types while maintaining full installation flexibility.
2Area of stationary object
If fixed focus step light fixtures are used, then the light output is consistent, but additional fixtures are required for wider areas or longer stairways
Solution Approach 1:
The patent incorporates an adjustable focus mechanism that allows the light head to rotate and redirect light output to different areas. This dynamic adjustment capability enables a single fixture to cover varying distances and areas by changing the light direction, eliminating the need to install additional fixtures for wider or longer stairways.
Solution Approach 2:
The light head's orientation parameter can be changed to adjust the light beam direction and coverage area. By modifying the angular parameter of light output, a single fixture can adapt to illuminate different distances and areas, reducing the quantity of fixtures needed while maintaining adequate coverage.
3Area of stationary object
If multiple step light fixtures are installed to cover wider areas, then the light coverage is sufficient, but the acquisition costs and energy consumption increase
Solution Approach 1:
The adjustable light head allows dynamic redirection of light to cover required areas with fewer fixtures. By optimizing the light direction and focus, adequate coverage is achieved with reduced fixture quantity, thereby lowering both acquisition costs and cumulative energy consumption of multiple fixtures.
Solution Approach 2:
A single universal fixture with adjustable orientation replaces multiple fixed fixtures, reducing the total number of light sources required. This reduces both the upfront acquisition cost of multiple fixtures and the ongoing energy consumption of operating multiple fixtures simultaneously.
4Illumination intensity
If bright light is used to illuminate stairways, then visibility is improved, but blinding light glare may occur
Solution Approach 1:
The adjustable focus mechanism allows dynamic control of light direction and concentration. By adjusting the light beam angle and focus point, the system can provide sufficient illumination intensity for visibility while directing light away from users' eyes to prevent blinding glare, thus resolving the contradiction between brightness and glare.
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 lighting of various stair lengths and areas with reduced fixture needs, lowering acquisition and energy costs, while providing adjustable brightness and color options for enhanced safety and energy savings.
Implementation Method 1
a ball plunger, wherein the ball plunger is attached to the reflector cover, and is configured to interface with the pan rotation ring to allow for rotation of the LED light head assembly
Implementation Method 2
a heat sink reflector, wherein the heat sink reflector is disposed within an interior of the reflector cover
Implementation Method 3
a reflector cover, wherein the clip strap couples together the driver box, the cover, and the reflector cover
Data Source
AI summary
An LED step light may include a junction box. An LED step light may include an LED light head assembly, including: a clip strap, a driver box, a cover, a reflector cover, wherein the clip strap couples together the driver box, the cover, and the reflector cover. An LED step light may include a heat sink reflector, wherein the heat sink reflector is disposed within an interior of the reflector cover. An LED step light may include a pan rotation ring. An LED step light may include a ball plunger, wherein the ball plunger may be attached to the reflector cover, and may be configured to interface with the pan rotation ring to allow for rotation of the LED light head assembly. An LED step light may include a main plate. An LED step light may include a face cover plate.