Lens Void Structure for Uniform Light Distribution in Outdoor Lamps
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Solution Overview
Problem
Conventional lighting devices, particularly outdoor lamps, lack unique and complex shapes that can enhance their aesthetic appeal, and existing designs do not effectively distribute light uniformly across the lens portion.
Innovation Solution
A lighting device featuring a lens portion with light-distributing voids, such as triangular or diamond-like shapes, that are designed to reflect and refract light, combined with a base portion that securely mates with the lens using embossed and debossed rims, ensuring even light distribution without the need for permanent fasteners, and can be powered by solar energy or traditional electricity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a simple spherical or bulb-like lens shape is used, then manufacturing is easy, but aesthetic appeal and uniqueness are insufficient
Solution Approach 1:
The lens is segmented into multiple functional zones including a light-receiving portion, light-distributing voids, and a light-emitting portion. This segmentation allows complex light distribution patterns while maintaining manufacturability through modular design elements that can be formed using standard injection molding techniques.
Solution Approach 2:
Different regions of the lens are assigned different optical properties and functions. The light-receiving portion has specific refractive properties, the voids provide reflection and refraction, and the light-emitting portion is optimized for light output. This local differentiation achieves aesthetic complexity without requiring the entire lens to be manufactured with equal complexity.
2Illumination intensity
If light is emitted directly from a simple lens, then the light source is simple, but light distribution is uneven and inefficient
Solution Approach 1:
Light-distributing voids are introduced as intermediary elements between the light source and the external environment. These voids act as optical mediators that reflect and refract light to achieve uniform distribution across the lens, reducing the need for complex external lighting arrangements.
Solution Approach 2:
The patent transitions from a conventional two-dimensional lens surface to a three-dimensional internal structure with voids embedded within the lens material. This dimensional addition allows light distribution to occur throughout the volume of the lens rather than just at the surface, improving uniformity while keeping the external shape relatively simple.
3Strength
If permanent fasteners are used to attach the lens to the base, then structural strength is high, but assembly and disassembly are difficult
Solution Approach 1:
The connection system transitions from a static permanent attachment to a dynamic reversible mechanism. The rim engagement structure allows the lens to be securely attached during operation while enabling easy removal and reattachment, adapting the connection strength based on operational needs.
Solution Approach 2:
The use of curved or rounded rim profiles creates a snap-fit connection that provides sufficient holding strength through geometric interlocking. The curved surfaces distribute stress evenly and create friction-based retention without requiring threads, adhesives, or other permanent fastening methods.
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 visually appealing and efficient light distribution system that ensures light reaches all areas of the lens, enhancing the aesthetic and functional aspects of outdoor lamps, while allowing for various power sources including solar panels.
Implementation Method 1
The lens portion includes at least one light-distributing void to help distribute light (e.g., by reflection and/or refraction) throughout the lens portion
Implementation Method 2
The lens portion includes at least one light-distributing void to help distribute light (e.g., by reflection and/or refraction) throughout the lens portion
Implementation Method 3
The base portion includes a light source (e.g., a light emitting diode or a low-voltage incandescent bulb) for emitting light into the lens portion
Implementation Method 4
Outdoor lamps are typically wired or powered by solar energy
Data Source
AI summary
A lighting device includes a lens portion and a base portion. The lens portion includes at least one light-distributing void for distributing light throughout the lens portion. The base portion includes a light source for emitting light into the lens portion.