Dual-Ring Lens Circuit for Adjustable Beam Angle Without Flux Loss
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Solution Overview
Problem
Existing lamp designs with fixed light-emitting angles fail to meet diverse lighting needs, and methods to adjust angles often result in luminous flux loss, operational inconvenience, or water leakage risks.
Innovation Solution
An optical structure with a single lens layer comprising two lens portions of different angles, controlled by a dimming circuit that adjusts current ratios between outer and inner ring light sources, allowing for angle and color temperature adjustments without disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the focal length of the lens is adjusted by changing the distance between the lens and the light source, then the light-emitting angle is adjusted, but the optical efficiency changes resulting in luminous flux loss
Solution Approach 1:
The light source plate is segmented into multiple independent light-emitting units arranged in specific patterns (e.g., annular arrays with different radii). By independently controlling the intensity of each unit, the system achieves angle adjustment without moving the lens, thereby avoiding luminous flux loss.
Solution Approach 2:
The system dynamically adjusts the light-emitting angle by changing the intensity distribution of different light-emitting units through circuit control, rather than mechanically moving the lens. This dynamic electrical control eliminates the need for physical adjustment and maintains optimal optical coupling.
2Adaptability or versatility
If the light path is changed by adjusting the relative position of two layers of lenses, then the light-emitting angle is adjusted, but two layers of optical structures need to be passed through resulting in large luminous flux loss
Solution Approach 1:
The invention extracts the angle adjustment function from the optical path modification approach and implements it through electrical control of light source intensity distribution. This eliminates the need for multiple lens layers and their associated transmission losses.
Solution Approach 2:
The mechanical adjustment of lens positions is replaced by an electrical control system that adjusts the intensity of individual light-emitting units. This substitution eliminates mechanical complexity and the associated optical losses from multiple lens interfaces.
3Adaptability or versatility
If the relative position of the lens and the light source is changed by moving the lens, then the light-emitting angle is adjusted, but the lens needs to be disassembled which is troublesome in operation and affects the waterproof effect
Solution Approach 1:
The mechanical lens movement system is replaced by an electrical control system that adjusts light emission patterns. This eliminates the need for disassembly and reassembly operations, maintaining waterproof seals and simplifying user interaction.
Solution Approach 2:
The system performs angle adjustment automatically through circuit control of light-emitting units without requiring user intervention for mechanical adjustment. The waterproof structure remains intact as no disassembly is needed.
4Adaptability or versatility
If the relative position of the lens and the light source is changed by moving the lens, then the light-emitting angle is adjusted, but the lens needs to be disassembled which affects the waterproof effect
Solution Approach 1:
The mechanical adjustment mechanism requiring lens disassembly is replaced by an electrical control system. This maintains the integrity of the waterproof seal as the lens remains in its original position, eliminating the reliability issues associated with repeated assembly and disassembly.
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
Reduces luminous flux loss, simplifies operation, and enhances versatility by enabling angle and color temperature adjustments through a circuit-based system, avoiding traditional inefficiencies and potential water leakage.
Implementation Method 1
a plurality of outer-ring light sources forming an outer ring are provided on a light source plate, and a plurality of inner-ring light sources forming an inner ring are provided on an inner side of the outer-ring light sources
Implementation Method 2
the lens comprises a first lens portion provided opposite to the outer-ring light sources and a second lens portion provided opposite to the inner-ring light sources
Data Source
AI summary
Disclosed is an optical structure, including a light source plate and a lens corresponding to the light source plate, where the light source plate is provided with outer-ring light sources, and inner-ring light sources are provided on an inner side of the outer-ring light sources; the lens includes a first lens portion provided opposite to the outer-ring light sources and a second lens portion provided opposite to the inner-ring light sources, and light-emitting angles of the first lens portion and the second lens portion are different; the optical structure further includes a dimming control circuit connected to the light source plate. A current ratio between the outer-ring light source and the inner-ring light source is adjusted through the dimming control circuit to adjust the light-emitting angle.