Upper-Air UV Reflector Using Elastic Parabolic Sheet Forming
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Solution Overview
Problem
Current UVC upper air disinfection systems face challenges in achieving accurate and safety-compliant reflectors without the need for expensive manufacturing technologies, leading to inefficiencies and increased costs due to the use of lamellae and difficulties in obtaining precise sheet metal reflectors.
Innovation Solution
A lighting system with an elastically deformable reflective sheet and a bridge component that shapes the reflector into a parabolic shape within the elastic regime, eliminating the need for expensive tools and allowing for a more accurate and cost-effective reflector design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If expensive manufacturing technologies and lamellae are used to achieve accurate reflectors, then manufacturing precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent employs a flexible reflective sheet that can be elastically deformed into a parabolic shape without requiring expensive manufacturing tools or complex assembly processes. The thin film nature of the sheet allows it to be easily shaped and secured with minimal structural support, eliminating the need for complex lamellae arrangements while achieving the required reflector accuracy.
Solution Approach 2:
The patent utilizes elastic deformation parameters to transform a flat reflective sheet into a parabolic shape by applying controlled stress within the elastic regime. This parameter-based approach allows the sheet to assume the desired curved geometry through material elasticity rather than complex mechanical forming processes, reducing both manufacturing cost and system complexity.
2Manufacturing precision
If expensive manufacturing technologies are used to produce accurate reflectors, then manufacturing precision is improved, but cost increases
Solution Approach 1:
The reflective sheet is designed as a flexible thin film that can be easily shaped into a parabolic form using simple elastic deformation techniques. This eliminates the need for expensive sheet metal forming equipment, precision machining, or complex assembly tools, thereby significantly reducing manufacturing costs while maintaining high reflector accuracy.
Solution Approach 2:
The patent employs a cost-effective reflective sheet material that can be easily manufactured and disposed of or replaced if needed. The simplicity of the sheet design allows for economical production methods such as cutting and forming from standard materials, avoiding the high costs associated with precision-wrought metal reflectors.
3Object-affected harmful factors
If lamellae are used to achieve safety compliance, then safety is improved, but device complexity and optical efficiency decrease
Solution Approach 1:
The flexible reflective sheet can be shaped into a parabolic form that naturally directs UV light in controlled patterns, achieving safety compliance through geometric design rather than through lamellae. This parabolic shape concentrates the light beam in the desired direction while minimizing stray light, maintaining high optical efficiency without compromising safety.
Solution Approach 2:
The patent employs a parabolic curvature in the reflective sheet design to control light distribution. The curved parabolic shape naturally focuses and directs UV radiation in a controlled manner, achieving safety compliance through the geometry itself rather than requiring additional safety components like lamellae, thereby preserving optical efficiency.
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 a cost-effective and efficient reflector system that enhances the optical performance and efficiency of the lighting system, enabling a smaller, more compact design with reduced glare and improved safety compliance.
Implementation Method 1
at least one LED light source configured to, in operation, emit light source light
Implementation Method 2
a reflector configured to be arranged between the back wall and the at least one LED light source such as to reflect the light source light as collimated light
Implementation Method 3
the reflector is an elastically deformable reflective sheet... a maximum level of stress imposed on the elastically deformable reflective sheet is falling within the elastic regime of the material
Data Source
AI summary
A lighting system (1) configured to disinfect air in an upper part of a space or room, such as a part of a space or room near a ceiling (17) of the space or room, the lighting system (1) comprising a housing (2) comprising a back wall (21) configured for abutment with a mounting surface and a circumferential wall (22) extending from the back wall (21), at least one LED light source (3) configured to, in operation, emit UV light, a reflector (5) configured to be arranged between the back wall (21) and the at least one LED light source (3) such as to reflect the light source light as collimated light in a main issue direction (ID) generally away from the back wall (21), the reflector (5) being an elastically deformable reflective sheet, and the lighting system further comprising a bridge component (6) being elongated in an elongation direction (ED) perpendicular to the main issue direction (ID) and being arranged between the reflector (5) and the at least one LED light source (3) in such a way that the reflector (5) is forced to assume a curved shape around the bridge component (6), said curved shape comprising a parabolic cross section in a plane perpendicular to the elongation direction (ED), wherein a maximum level of stress imposed on the elastically deformable reflective sheet is falling within the elastic regime of the material of the elastically deformable reflective sheet.