Illuminating Device Beam Angle Adjustment via LED Power Control
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Solution Overview
Problem
Existing illuminating devices struggle with rapidly and quantitatively adjusting beam angles due to mechanical adjustments, which result in poor consistency, low controllability, and short service life, affecting user experience.
Innovation Solution
A method and system using at least two light sources with LED luminous elements, where a controller determines the power of each light source based on a parameter table to achieve the desired beam angle through light mixing, eliminating mechanical structures and enabling precise, fast, and consistent adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mechanical adjustment structure is used to adjust beam angle, then beam angle can be adjusted, but adjustment precision and consistency deteriorate
Solution Approach 1:
The patent replaces mechanical adjustment structures (rotary adjustment mechanisms, tail adjustment structures, toggle structures) with an electronic control system. The controller adjusts the beam angle by controlling the power output of multiple LED light sources, eliminating mechanical components entirely. This substitution resolves the contradiction by achieving precise and consistent beam angle adjustment through electronic control while maintaining ease of operation via simple power adjustment.
Solution Approach 2:
The patent changes the adjustment parameter from mechanical position (distance between light source and lens) to electrical parameter (power output of light sources). By controlling the power of multiple LED groups with different beam angles, the system achieves precise beam angle adjustment. This parameter transformation enables quantitative control and improves both precision and consistency of adjustment.
2Ease of operation
If mechanical adjustment structure is used to adjust beam angle, then beam angle can be adjusted, but service life deteriorates
Solution Approach 1:
The patent eliminates mechanical adjustment structures that cause wear and short service life by replacing them with an all-electronic control system. The controller adjusts beam angle through power control of LED sources, leaving no moving mechanical parts. This resolves the contradiction by extending service life through the removal of wear-prone mechanical components while maintaining operational ease.
3Ease of operation
If mechanical adjustment structure is used to adjust beam angle, then beam angle can be adjusted, but adjustment speed deteriorates
Solution Approach 1:
The patent replaces slow mechanical adjustment with instant electronic control. The controller can immediately change the power output of LED light sources to achieve the desired beam angle, eliminating the inertia and friction limitations of mechanical systems. This resolves the contradiction by achieving fast adjustment speed through electronic control while keeping the operation simple.
4Ease of operation
If mechanical adjustment structure is used to adjust beam angle, then beam angle can be adjusted, but controllability deteriorates
Solution Approach 1:
The patent replaces mechanical adjustment with electronic control, enabling precise and programmable controllability. The controller can implement complex control algorithms, feedback mechanisms, and automated adjustment based on sensor input. This resolves the contradiction by improving controllability and automation extent through electronic control while maintaining ease of operation.
5Adaptability or versatility
If multiple light sources are used to mix light for beam angle adjustment, then beam angle can be adjusted qualitatively, but adjustment precision and speed deteriorate
Solution Approach 1:
The patent transforms qualitative beam angle adjustment into quantitative control by adjusting the power parameters of multiple LED light sources. The controller precisely controls the power output of each light source group, enabling accurate beam angle calculation through the superposition principle. This resolves the contradiction by achieving precise and fast adjustment through parameter-based control while maintaining versatility.
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
The solution allows for precise, fast, and highly consistent beam angle adjustments without noise, extending the service life and improving user experience by using electronic control and light mixing algorithms.
Implementation Method 1
enabling radiated light to be mixed in an illuminated space to change the beam angle, and obtaining the target beam angle according to a superposition principle for the intensity of light
Data Source
AI summary
A method for rapidly and quantitatively adjusting a beam angle of an illuminating device includes: determining a target beam angle according to an actual scene, and sending, by using an input apparatus, the target beam angle to the illuminating device; receiving, by a receiver of the illuminating device, the target beam angle and sending the target beam angle to a controller of the illuminating device; determining, by the controller of the illuminating device, target power of each light source according to the target beam angle and a parameter table stored in a local read-only memory (ROM) or cloud of the illuminating device; and driving, by a driver, each light source to emit light according to the corresponding target power, enabling radiated light to be mixed in an illuminated space to change the beam angle, and obtaining the target beam angle according to a superposition principle for the intensity of light.