Lighting Module Curved Resin for Lateral Intensity
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Solution Overview
Problem
Existing lighting modules struggle to enhance luminous intensity and light condensing efficiency, particularly for surface lights emitting light in a lateral direction.
Innovation Solution
A lighting module comprising a circuit board with light emitting devices arranged in a specific direction, sealed by a resin layer with a reflective member on its surface, featuring a curved surface portion and a reflective layer to optimize light reflection and extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional lighting modules are used, then the structure is simple, but the luminous intensity and light condensing efficiency are insufficient
Solution Approach 1:
The resin layer incorporates a curved surface portion with a specific radius of curvature that focuses and condenses light in the lateral direction. This curved geometry redirects light rays to achieve higher luminous intensity and better light condensing efficiency without requiring complex additional optical components
Solution Approach 2:
The invention transitions from conventional planar light emission to three-dimensional light control by positioning the light emitting device to overlap with both the curved surface portion and the reflective member in different spatial dimensions. This multi-dimensional arrangement optimizes light extraction and condensation pathways
2Productivity
If conventional lighting modules are used, then the design is simple, but the light collection efficiency is low
Solution Approach 1:
The invention merges multiple functions into a single integrated resin layer structure that combines sealing, light guiding, curvature-based light condensing, and reflective properties. This unified approach achieves high light collection efficiency while avoiding the need for separate complex optical components
Solution Approach 2:
The resin layer acts as an intermediary medium between the light emitting device and the external environment, mediating light extraction and direction control. The curved surface portion of the resin layer specifically mediates light condensation in the lateral direction, improving light collection efficiency without direct mechanical intervention
3Illumination intensity
If light emitting devices are arranged conventionally, then the manufacturing is simple, but the luminous intensity in lateral direction is insufficient
Solution Approach 1:
The resin layer is designed with non-uniform local properties: a curved surface portion in the light extraction region and a flat upper surface in other regions. This localized curvature optimization enhances lateral light intensity precisely where needed without complicating the overall manufacturing process
Solution Approach 2:
The curved surface portion is pre-formed in the resin layer during manufacturing, establishing the light condensing geometry before the light emitting device is assembled. This preliminary structural preparation simplifies subsequent assembly while ensuring optimal light emission characteristics
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 improves luminous intensity and light collection efficiency, making it suitable for daytime running lamps and enhancing optical reliability in various lighting applications.
Implementation Method 1
a reflective member disposed on a surface of the resin layer and having an opening portion on one side of the resin layer
Implementation Method 2
the resin layer includes: an exit surface portion on which the opening portion is disposed; a curved surface portion opposite to the exit surface portion
Data Source
AI summary
A lighting module disclosed in an embodiment of the invention includes a circuit board; a plurality of light emitting devices arranged in a first direction on the circuit board; a resin layer sealing the plurality of light emitting devices; and a reflective member disposed on a surface of the resin layer and having an opening portion on one side, wherein the resin layer includes: an exit surface portion on which the opening portion is disposed; a curved surface portion opposite to the exit surface portion; and an upper surface portion disposed on the curved surface portion and the exit surface portion, wherein the light emitting device overlaps the curved surface portion in a vertical direction, the upper surface portion of the resin portion has a horizontal plane, and the width of the opening portion in the vertical direction is smaller than a height in a vertical direction of the exit surface portion, and the light emitting device may be disposed closer to a lower end of the curved surface portion than to a lower end of the exit surface portion.