Rotatable Beam Angle Selector for LED Lamps
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Solution Overview
Problem
Existing lighting systems face inefficiencies in adjusting beam angles, requiring the replacement of entire bulbs or large LED arrays with individually addressable LEDs and specialized electrical control mechanisms, which is costly and cumbersome, especially for small format bulbs.
Innovation Solution
A selectively-adjustable beam angle lamp with a rotatable beam angle selector featuring a plurality of primary beam angle optics, a spring-loaded stop, and drive electronics, allowing for the alignment of different beam angle optics with the light source without changing the physical distance, enabling seamless adjustment between beam angles from 10 to 120 degrees.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the light source is moved toward or away from the focal point of a lens to vary beam angle, then beam angle is adjusted, but image quality degrades and collection efficiency reduces
Solution Approach 1:
The patent implements a rotatable beam angle selector that dynamically switches between multiple fixed optics with different prescriptions (e.g., 10°, 20°, 40°, 60°, 80°, 120° beam angles). This dynamic selection mechanism allows beam angle adjustment while maintaining optimal image quality and collection efficiency for each selected angle, avoiding the degradation that occurs when moving the light source relative to a single fixed lens.
Solution Approach 2:
The invention divides the optical system into multiple discrete optics, each optimized for a specific beam angle. Instead of using one variable optics, the system segments the optical function across several fixed optics with different prescriptions, allowing selective activation of the appropriate optic for each beam angle requirement.
2Adaptability or versatility
If multiple fixed lenses are manufactured to achieve different beam angles, then beam angle variety is provided, but the need to remove and replace entire bulbs becomes costly and cumbersome
Solution Approach 1:
The patent merges multiple fixed optics with different beam angle prescriptions into a single integrated lamp assembly. The rotatable beam angle selector incorporates several optics (e.g., 10°, 20°, 40°, 60°, 80°, 120°) that can be rotated into position, allowing beam angle variation without replacing the entire bulb. This integration reduces cost and complexity while maintaining versatility.
Solution Approach 2:
The lamp assembly achieves multi-functionality by incorporating a universal beam angle selector that can provide multiple beam angles (10°, 20°, 40°, 60°, 80°, 120°) from a single bulb. This universal design eliminates the need for multiple specialized bulbs, reducing manufacturing costs and simplifying installation and replacement procedures.
3Adaptability or versatility
If a large LED array with individually addressable LEDs and static secondary optics is used, then beam angle adjustment is achieved, but device complexity and production cost increase
Solution Approach 1:
The patent replaces complex electrical control mechanisms (individually addressable LEDs with specialized drivers) with a simpler mechanical rotation system. The rotatable beam angle selector uses mechanical rotation to bring different optics into alignment with the light source, eliminating the need for complex electrical addressing and control circuitry while achieving the same beam angle adjustment functionality.
Solution Approach 2:
The invention extracts the beam angle control function from the electrical domain and implements it through a separate mechanical selection mechanism. By taking out the complexity of individual LED control and implementing beam angle adjustment through optical selection instead, the system achieves simpler architecture and lower production costs.
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 solution allows for efficient and cost-effective adjustment of beam angles without the need for large LED arrays or specialized electrical drivers, reducing production costs and simplifying the process of offering multiple beam angle products.
Implementation Method 1
an indicator ring comprising an indent within which is disposed a spring-loaded stop
Data Source
AI summary
This invention relates to selectively-adjustable beam angle lamps, and in particular, selectively-adjustable beam angle LED lamps.