Adjustable Light Reflection Assembly for Uniform Glare-Cutoff Lighting
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Solution Overview
Problem
Commercial floodlights suffer from uneven light distribution, light overflow, glare, fixed luminous angles, inconvenient installation, and low light efficiency, leading to increased costs, energy waste, and visual discomfort.
Innovation Solution
A reflective light source device with a light reflection assembly featuring rotatable sidewalls that adjust the light-emitting angle and path, incorporating a light source assembly with adjustable sidewalls to achieve uniform light distribution, cut off unwanted light, and prevent glare, allowing 360-degree illumination without dead angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed reflector structure is used in conventional floodlights, then the device complexity is reduced, but the adaptability of light distribution and luminous angle is limited
Solution Approach 1:
The patent applies the dynamics principle by making the reflector structure rotatable and adjustable. The reflector can rotate around a central axis and adjust its angle to change the light distribution pattern and luminous angle, transforming a static structure into a dynamic one that adapts to different lighting requirements.
Solution Approach 2:
The reflector is divided into multiple independent adjustable sections or surfaces that can be positioned at different angles. This segmentation allows each portion to control specific aspects of light distribution, providing fine-grained adaptability while maintaining manageable device complexity.
2Illumination intensity
If conventional floodlights are designed with fixed light distribution, then the manufacturing cost is reduced, but the uniformity of light distribution over wide areas deteriorates
Solution Approach 1:
The adjustable reflector allows the light distribution pattern to be dynamically optimized for uniform illumination over wide areas. By adjusting the reflector angle and position, the system can distribute light more evenly across the target area, improving illumination uniformity.
Solution Approach 2:
The patent changes the geometric parameters of the light reflection path by adjusting the reflector angle and position. This parameter adjustment enables optimization of light distribution uniformity without requiring complex manufacturing processes, as the same reflector structure can be configured for different distribution patterns.
3Object-affected harmful factors
If conventional floodlights emit light in all directions, then the illumination coverage is maximized, but glare and redundant interference light increase
Solution Approach 1:
The adjustable reflector extracts and redirects specific portions of light that would otherwise become glare or redundant interference. By selectively positioning the reflector, unwanted light paths are eliminated while useful illumination coverage is maintained, separating harmful light from beneficial light.
Solution Approach 2:
The reflector converts potentially harmful stray light and glare into useful directed illumination. By strategically positioning the reflector surfaces, light that would otherwise be wasted or cause glare is redirected to contribute to the desired illumination coverage, turning a harmful factor into a benefit.
4Adaptability or versatility
If the luminous angle of floodlights is fixed, then the device complexity is reduced, but the flexibility for different application scenarios is limited
Solution Approach 1:
The luminous angle is made dynamic through the rotatable and adjustable reflector mechanism. The reflector can be positioned at different angles to change the effective luminous angle of the floodlight, allowing adaptation to various application scenarios such as wide-area illumination or focused spot lighting without requiring multiple fixed-angle devices.
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 provides larger illumination range, higher light efficiency, uniform brightness, and flexible installation, reducing energy waste and visual discomfort while enhancing lighting quality and reducing production and inventory costs.
Implementation Method 1
a reflective chamber C having a first opening V1 at an upper end and a second opening V2 at a lower end... The inner surface, facing the reflective chamber C, of each of the first sidewall 2, the second sidewall 3, the third sidewall 4-1, and the fourth sidewall 4-2 is a light reflective surface
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A light reflection assembly (R), a reflective light source device (RS), and a lamp (LT). The light reflection assembly (R) comprises a first side wall (2), a second side wall (3), a third side wall (4-1), and a fourth side wall (4-2) that enclose a reflection cavity (C). The reflection cavity (C) has a first opening (V1) and a second opening (V2) at two opposite ends. The first opening (V1) is within a first reference plane (P1), and a first reference straight line (R1) perpendicularly intersects, at a first intersection within the first opening (V1), the first reference plane (P 1). An included angle between a first straight line section that connects a first end point (E1) and a second end point (E2) and a portion of the first reference plane (P1) that overlaps the first opening (V1) is a first included angle (α1), and an included angle between a second straight line section that connects a third end point (E3) and a fourth end point (E4) and a portion of the first reference plane (P1) that overlaps the first opening (V1) is a second included angle (α2), the first included angle (α1) being smaller than the second included angle (α2). Thus, the illumination uniformity of an illuminated region is improved.