Angled Diffuser Laser Module for Off-Axis Light Concentration
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Solution Overview
Problem
Conventional laser modules require an inclined installation to concentrate the light beam on a specific area, increasing design and product size costs.
Innovation Solution
A laser module design featuring a substrate with a laser diode and a diffuser, where the diffuser is positioned at an angle greater than 5 degrees relative to the substrate's base plane, allowing for direct light concentration on the necessary area without the need for inclined installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the laser module is installed in an inclined manner to concentrate the light beam on the necessary area, then the light concentration effect is improved, but the device complexity and installation difficulty increase
Solution Approach 1:
The patent introduces a new dimension by tilting the diffuser layer at an angle of 5-85 degrees relative to the substrate, rather than installing the entire laser module at an angle. This dimensional change in the diffuser's orientation enables light concentration in the vertical direction while maintaining horizontal module installation, resolving the contradiction between light concentration effect and installation complexity
2Illumination intensity
If the laser module is installed in an inclined manner to concentrate the light beam, then the light beam concentration is improved, but the product size increases
Solution Approach 1:
By tilting the diffuser layer within the planar structure of the laser module, the patent achieves light beam concentration without increasing the overall module volume. The angular orientation of the diffuser creates the concentration effect in the optical path while maintaining a compact footprint, eliminating the need for larger inclined module installations
3Ease of operation
If the diffuser is positioned at an angle greater than 5 degrees relative to the substrate, then the light-shape off-axis effect is achieved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent specifies a practical angular range of 5-85 degrees for the diffuser tilt, with optimal performance in certain sub-ranges. This parameter definition balances the need for off-axis light shaping with manufacturability, avoiding excessively precise angular requirements while achieving the desired optical effect through the diffuser's geometric orientation
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 laser module achieves a light-shape off-axis effect, enabling direct concentration of the light beam on the required area, reducing installation complexity, design costs, and product size.
Implementation Method 1
The diffuser is disposed above the laser diode, wherein an included angle is formed between the diffuser and the base plane, and the included angle is greater than 5 degrees
Implementation Method 2
the laser module can provide a light-shape off-axis effect, and the light beam provided by the laser module can be directly concentrated on the necessary area
Data Source
AI summary
A laser module is provided. The laser module includes a substrate, a laser diode and a diffuser. The substrate has a surface and a base plane, wherein the base plane is parallel to the surface. The laser diode is disposed on the surface. The diffuser is disposed above the laser diode, wherein an included angle is formed between the diffuser and the base plane, and the included angle is greater than 5 degrees.