Optoelectronic Component High Aspect Ratio Medium
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Solution Overview
Problem
Existing optoelectronic components and lighting devices face challenges in deflecting electromagnetic radiation in a preferred direction without complex coupling-out structures, and achieving uniform light distribution, due to the complexity and expense of setting a particle density gradient.
Innovation Solution
An optoelectronic component comprising a semiconductor chip on a carrier, enclosed by a transparent medium with particles, where the medium has an aspect ratio greater than 1, allowing horizontal deflection of electromagnetic radiation, and a partly reflective layer to enhance light distribution, enabling efficient coupling into an optical waveguide.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a gradient of particle density is set in the medium to deflect electromagnetic radiation, then the radiation can be deflected in a preferred direction, but the production process becomes very complex, difficult to reproduce and expensive
Solution Approach 1:
The patent changes the geometric parameter of the medium from a conventional low aspect ratio to a high aspect ratio (height to width ratio greater than 1). This parameter change allows the medium with uniform particle distribution to deflect electromagnetic radiation horizontally in a preferred direction, eliminating the need for complex particle density gradients while achieving the desired radiation control.
Solution Approach 2:
Instead of creating a complex particle density gradient to achieve directional deflection, the patent inverts the approach by using a simple uniform particle distribution combined with a high aspect ratio geometry. This inversion simplifies the production process while maintaining or improving the directional deflection capability.
2Illumination intensity
If complex coupling-out structures are used to achieve uniform light distribution, then uniform light distribution is possible, but the device complexity and production cost increase
Solution Approach 1:
The patent uses a high aspect ratio (height to width greater than 1) of the transparent medium to achieve uniform light distribution without complex coupling-out structures. This geometric parameter change fundamentally alters the light propagation characteristics, enabling uniform lateral emission directly from the medium itself.
Solution Approach 2:
The patent extracts and eliminates the need for complex coupling-out structures by incorporating the uniform light distribution function directly into the high aspect ratio medium. The medium itself performs the light distribution function that previously required separate complex coupling structures.
3Illumination intensity
If the medium has a high aspect ratio greater than 1, then electromagnetic radiation is deflected horizontally with improved uniformity, but the medium volume increases
Solution Approach 1:
The patent optimizes the aspect ratio parameter (height to width greater than 1) to achieve the best balance between uniform light distribution and volume efficiency. This specific parameter range provides optimal horizontal deflection and uniformity while minimizing the overall medium volume required for the function.
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 enables cost-effective production of optoelectronic components that achieve high optical efficiency and uniform light distribution, facilitating the creation of a flexible, rimless, and self-cooling planar light source with improved lateral emission characteristics.
Implementation Method 1
at least one semiconductor chip, arranged on the carrier, for emitting a primary radiation
Implementation Method 2
Through interaction with particles, the electromagnetic radiation is partly deflected and partly altered with regard to its wavelength
Implementation Method 3
particles introduced in the medium and serving for interaction with the primary radiation
Data Source
AI summary
An optoelectronic component (1) comprises a carrier (2) and at least one semiconductor chip (3). The semiconductor chip (3) is arranged on the carrier (2) and designed for emitting a primary radiation (6). The semiconductor chip (3) is at least partly enclosed by an at least partly transparent medium (7) having a height (8) above the carrier (2) and a width (9) along the carrier (2). Particles (10, 11) are introduced into the medium (7) and interact with the primary radiation (6). The medium (7) has a ratio of the height (8) to the width (9) of greater than 1.