Microstructure Unit on Lens for Light Beam Guidance
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Solution Overview
Problem
Conventional optical apparatuses face challenges in increasing light collecting efficacy and efficiency, particularly in portable electronic devices, where the fabricating process is complex and costly, and existing microstructure units are limited to concentrating light energy without guiding it effectively.
Innovation Solution
An optical apparatus comprising a photosensitive diode unit, a lens, and a microstructure unit, where the microstructure unit is arranged between the lens and the photosensitive diode unit to change the traveling directions of light beams, enhancing their guidance and collection efficiency, and potentially including diffractive optical elements or Fresnel surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional optical apparatus structures are used to increase light collecting efficacy, then light collection efficiency is improved, but the fabricating process becomes complex and costly
Solution Approach 1:
The patent combines the microstructure unit with the lens into a single integrated component. The microstructure unit is formed directly on the lens surface, merging two previously separate elements (lens and microstructure) into one, thereby simplifying the fabricating process while maintaining light collection efficiency
Solution Approach 2:
The lens is designed to serve multiple functions: it acts as both a focusing element and a substrate for the microstructure unit. This multi-functionality reduces the need for separate components, simplifying manufacturing while achieving both light concentration and guidance
2Loss of energy
If conventional microstructure units are used to concentrate light energy, then light concentration is improved, but the light beam guidance function is insufficient
Solution Approach 1:
The patent merges the light concentrating function of the microstructure unit with the light guiding function of the lens. By forming the microstructure unit on the lens, the system achieves both energy concentration and effective guidance of light beams to the photosensitive diode unit through a single integrated structure
Solution Approach 2:
The microstructure unit acts as an intermediary element that receives light from the lens and redirects it toward the photosensitive diode unit. It serves as a mediator between the lens and the detector, enabling both concentration and guidance of light energy
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 simplifies the fabricating process, reduces costs, and significantly enhances the light collection efficiency of the photosensitive diode unit, making the optical apparatus more industrially applicable and effective in various applications, including distance measurement and image capture.
Implementation Method 1
the microstructure unit is arranged between the lens and the photosensitive diode unit to change the traveling directions of light beams
Implementation Method 2
a lens and a light source. A microstructure unit which is essentially corresponding, but not limited, to the photosensitive diode unit is formed on the lens
Data Source
AI summary
An optical apparatus includes a photosensitive diode unit, a lens and a microstructure unit. The microstructure unit is arranged between the photosensitive diode unit and the lens. After plural light beams passing through the lens are received by the microstructure unit, travelling directions of the plural light beams are changed. Consequently, at least a portion of the plural light beams is guided to the photosensitive diode unit. In such way, the light collecting efficacy of the photosensitive diode unit is enhanced.