Light-Emitting Module Lens Covering for Concealed Electronics
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Solution Overview
Problem
Conventional light-emitting modules used in camera flashes or similar applications have electronic components that can be seen through the lens, detracting from the appearance, necessitating a solution to conceal these components while maintaining functionality.
Innovation Solution
A light-emitting module design featuring a substrate with light-emitting elements and electronic components, where plate-shaped covering members containing a coloring agent are placed between the electronic components and the lens to conceal their appearance, ensuring they are not visible through the lens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If electronic components are disposed on the substrate behind the lens, then the light-emitting module can achieve compact structure and functional integration, but the electronic components become visible through the lens which deteriorates the appearance
Solution Approach 1:
A covering member is introduced as an intermediary element between the lens and the electronic component. This covering member contains a coloring agent that matches the lens color, effectively masking the electronic component while allowing light to pass through. The intermediary structure resolves the contradiction by maintaining both the integrated layout and the aesthetic appearance.
Solution Approach 2:
The covering member is designed with a coloring agent that gives it a color matching the lens. This color matching technique makes the covering member visually blend with the lens, thereby concealing the electronic component behind it while maintaining the overall appearance quality of the light-emitting module.
2Shape
If a covering member is added to conceal electronic components, then the appearance quality is improved, but the device structure becomes more complex
Solution Approach 1:
The covering member is designed to serve multiple functions simultaneously: it acts as a cosmetic cover to conceal the electronic component, a light transmission medium to allow optical signals to pass through, and a structural element that can be integrated into the existing module assembly. This multi-functionality reduces the need for additional separate components.
Solution Approach 2:
The covering member is designed with specific parameter optimizations: its thickness is controlled to be sufficient for masking but thin enough for light transmission, and its material properties are selected to balance optical transparency with mechanical strength. These parameter optimizations ensure the covering member achieves appearance improvement without excessive structural complexity.
3Shape
If the covering member is made thicker to better conceal the electronic component, then the masking effect is improved, but the thickness variation increases which affects optical sensor performance
Solution Approach 1:
The thickness of the covering member is optimized to a specific range that balances two competing requirements: it is thick enough to effectively mask the electronic component and prevent visibility through the lens, but thin enough to minimize light transmission variations that would affect optical sensor performance. This parameter optimization resolves the contradiction between masking effect and thickness uniformity.
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 conceals electronic components, enhancing the appearance of the light-emitting module and maintaining uniform operation of components like optical sensors by reducing thickness variations and ensuring consistent light emission.
Implementation Method 1
The at least one covering member contains a coloring agent
Data Source
AI summary
A light-emitting module including a substrate, a light-emitting device disposed on the substrate, a lens, and an optical sensor. The light-emitting device includes at least one light-emitting element and a light-transmissive member disposed on a light extraction surface of the at least one light-emitting element. The lens is disposed apart from the light-emitting device at a position where the lens faces the light-emitting device. The optical sensor has an upper surface including a light-receiving surface to receive light through the lens and is disposed on the substrate at a position where at least a part of the light-receiving surface faces the lens. A center of the light-emitting device is located at a center of the lens in a plan view.