Segmented Optical Element with Bent Tooth Structures for LED Beam Shaping
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Solution Overview
Problem
Existing optical elements for optoelectronic components, such as light emitting diode components, often fail to conceal the semiconductor chip when switched off and require a single side for beam shaping, limiting design flexibility and visibility.
Innovation Solution
An optical element with a first surface subdivided into segments, each with a tooth structure featuring teeth extending along tooth extension directions that have bends at boundaries, allowing for non-rotationally symmetrical beam shaping and adaptation to specific geometries, while covering the semiconductor chip to maintain invisibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the optical element uses a single surface for beam shaping, then the structure is simple, but the beam shaping capability is limited
Solution Approach 1:
The first surface of the optical element is divided into multiple segments (first segment, second segment, third segment, fourth segment), each with independent tooth structures. This segmentation allows each segment to perform specific beam shaping functions while maintaining overall structural simplicity, resolving the contradiction between simple structure and limited beam shaping capability.
Solution Approach 2:
The tooth structures in different segments have different orientations and configurations. For example, the tooth extension directions in the first segment differ from those in the second segment, creating asymmetric beam shaping capabilities across different angular ranges, thereby enhancing versatility without significantly increasing structural complexity.
2Difficulty of detecting and measuring
If the optical element covers the semiconductor chip, then the chip is concealed when switched off, but the production complexity increases
Solution Approach 1:
The optical element is designed to cover and integrate with the semiconductor chip, combining the concealing function with the beam shaping function in a single component. This merging approach conceals the chip when switched off while avoiding the need for separate concealing structures, thus not significantly increasing production complexity.
3Ease of manufacture
If the tooth extension directions are straight, then the manufacturing is simple, but the beam shaping adaptability is reduced
Solution Approach 1:
The tooth extension directions are designed with bends rather than straight lines. The bends allow the tooth structures to redirect light beams more effectively across different angular ranges, enhancing beam shaping adaptability while remaining compatible with standard manufacturing processes for optical elements.
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
Enables effective beam shaping and concealment of the semiconductor chip, facilitating simple production and adaptable geometry for various applications, including devices with limited space, using optically transparent materials for cost-effectiveness.
Implementation Method 1
an optical element (100) having a first surface (110) and a second surface (120) opposite the first surface (110)
Implementation Method 2
each segment has a tooth structure (300) having teeth (310) extending along tooth extension directions (320)
Data Source
AI summary
An optical element has a first surface and a second surface opposite the first surface. The first surface is subdivided into at least one first segment and a second segment. The segments in each case adjoin a midpoint of the first surface. Each segment has a tooth structure having teeth extending along tooth extension directions. The tooth extension directions have bends at boundaries between the segments.