Lighting Device Lens with Concave Component and Outer Reflective Face
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Solution Overview
Problem
Existing lighting devices face challenges in controlling the direction and brightness of light emitted due to insufficient light control within the lens, leading to interference between light paths from different incident angles.
Innovation Solution
A lighting device with a lens design that includes a concave component with an inner convex face and an outer face configured to reflect light, where the light from the light source is incident on the concave component, and the emission face is structured to control the optical path, preventing direct incidence on boundaries and reducing interference by directing light from different regions in a controlled manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If light is allowed to incident directly on the ring-shaped convex lens part without reflection, then the optical path is simplified, but the incident angle varies greatly causing light control insufficiency and interference
Solution Approach 1:
The lens is segmented into multiple functional regions: a central convex lens part for direct light transmission, ring-shaped convex lens parts for reflected light, and a curved bulging face for light reflection. This segmentation allows different light paths to be controlled independently, resolving the contradiction between optical path simplicity and light control precision.
Solution Approach 2:
The curved bulging face acts as an intermediary element that redirects light from the side face of the proximal end concave component to the ring-shaped convex lens parts. This intermediary structure ensures that light is properly directed and controlled, preventing interference while maintaining precise light control.
2Manufacturing precision
If the lens structure is designed with multiple convex lens parts and curved surfaces for better light control, then light direction and brightness control is improved, but the lens structure becomes more complex
Solution Approach 1:
Multiple lens functions are merged into a single integrated lens structure. The central convex lens part, ring-shaped convex lens parts, and curved bulging face are combined into one lens component that simultaneously performs light transmission, reflection, and direction control, reducing the number of separate components while maintaining precise light control.
Solution Approach 2:
The lens is designed as a multi-functional component that performs multiple operations: the central convex lens part transmits light directly, the curved bulging face reflects light, and the ring-shaped convex lens parts focus reflected light. This multi-functionality allows a single lens structure to achieve precise light control without requiring multiple separate components.
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 effectively controls the light within the lens, suppressing interference and ensuring consistent light emission direction and brightness by managing the optical path and reducing random light travel directions.
Implementation Method 1
the outer face is configured to reflect the light that has entered the lens through the inner face toward the emission face
Implementation Method 2
a lens is used to efficiently guide diffused light emitted from a light source such as an LED
Data Source
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AI summary
A lighting device includes at least one light source, and a lens. The lens is configured to direct light emitted from the at least one light source. The lens has a concave component with an inner bottom face and an inner face, the light emitted from the at least one light source being incident on the concave component, an emission face located on an opposite side from the concave component, and an outer face located to the side of the concave component. The inner face forms a convex face that faces toward inside of the concave component. The outer face is configured to reflect the light that has entered the lens through the inner face toward the emission face.