Angled LED Sub-Mount Optical Axis Adjustment
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Solution Overview
Problem
Conventional sub-mounts for light-emitting diodes (LEDs) cannot adjust the optical axis to non-perpendicular angles relative to the mounting surface, requiring additional optical elements like lampshades to change the light output angle, which increases costs.
Innovation Solution
An electronic component sub-mount with a body having a top surface, a bottom surface, and a supporting surface at an angle greater than 0 degrees, featuring a first conductive layer on the bottom surface and a second conductive layer on the supporting surface, allowing the optical axis of the LED to form a specific angle without additional optical elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional sub-mount with parallel supporting surface and bottom surface is used, then the structure is simple and manufacturing is easy, but the optical axis of the LED cannot be adjusted to non-perpendicular angles
Solution Approach 1:
The supporting surface is designed to be inclined relative to the bottom surface, creating an asymmetric structure that enables the LED optical axis to be positioned at non-perpendicular angles to the mounting surface. This asymmetric geometry directly provides angular adjustment capability without requiring additional optical elements.
Solution Approach 2:
The invention introduces a angular dimension by inclining the supporting surface at a specific angle (e.g., 45 degrees) relative to the bottom surface. This dimensional change allows the LED to emit light at angled directions while maintaining a planar mounting interface on the circuit substrate.
2Adaptability or versatility
If additional optical elements like lampshades are used to change light output angle, then the optical axis angle can be adjusted, but the cost increases
Solution Approach 1:
The angular adjustment function is merged into the sub-mount structure itself through the inclined supporting surface. This integration eliminates the need for separate optical elements like lampshades, reducing component count and manufacturing cost while achieving the same light direction control.
Solution Approach 2:
The patent extracts the angular adjustment function from separate optical elements and incorporates it directly into the sub-mount's geometric structure. This extraction eliminates unnecessary components and reduces overall system cost.
3Adaptability or versatility
If the second conductive layer has the same pin layout on both supporting surface and top surface, then the manufacturing process is simpler, but compatibility with different electronic component designs is reduced
Solution Approach 1:
The second conductive layer is designed with different pin layouts at different locations: the supporting surface has a first pin layout matching the LED component, while the top surface has a second pin layout matching the circuit substrate. This local differentiation enables compatibility with multiple component designs without increasing overall manufacturing complexity.
Data Source
AI summary
An electronic device includes an electronic component module coupled to a substrate. The electronic component module includes a sub-mount, which includes a body having a top surface, a bottom surface, and a supporting surface. The supporting surface is located between the supporting surface and the bottom surface. A first conductive layer is disposed on the bottom surface and includes first conductive lines. A second conductive layer is disposed on the supporting surface, extending to the top surface, and includes second conductive lines. The second conductive lines on the supporting surface have a first pin layout, and the second conductive lines on the top surface have a second pin layout different from the first pin layout. The second pin layout matches the pin layout of first conductive lines on the bottom surface. An electronic component is coupled to the second conductive lines on the supporting surface.