Optical Module With Folded 3D Light Path for Compact Packaging
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Solution Overview
Problem
Existing optical modules face challenges in size reduction due to inefficient space utilization of transmission means, limiting their miniaturization.
Innovation Solution
The optical module incorporates a casing with a light source, first and second reflectors, and a transmitter, where light is reflected in a three-dimensional path within the casing to optimize space usage, allowing for efficient arrangement of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If transmission means are arranged in a conventional two-dimensional layout, then the optical module can be manufactured with standard assembly processes, but the module size cannot be reduced further
Solution Approach 1:
The patent applies dimensionality change by transitioning from a two-dimensional planar arrangement to a three-dimensional spatial configuration. The light path is folded using multiple reflectors (first reflector 30, second reflector 40) to create a three-dimensional optical path within the casing 10, allowing transmission means to be arranged in three dimensions rather than on a single plane. This enables more efficient space utilization and compactness while maintaining functional performance.
2Area of stationary object
If the optical path is folded using multiple reflectors, then space utilization is improved and module size is reduced, but the alignment precision requirements increase
Solution Approach 1:
The patent employs nesting by integrating multiple reflectors (first reflector 30, second reflector 40) within the confined space of the casing 10, where each reflector is positioned to utilize the space created by the previous reflector. The light path is nested through the casing interior, with each reflective surface strategically placed to fold the optical path efficiently. This nested arrangement maximizes space utilization while maintaining manageable alignment requirements through careful geometric design.
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
This configuration enables a reduction in the overall size of the optical module by effectively utilizing space, enhancing its compactness.
Implementation Method 1
a first reflector configured to reflect the light from the light source to a direction vertical to the first surface
Implementation Method 2
a second reflector configured to reflect the light from the first reflector to a direction parallel to an output direction of the light from the light source
Data Source
AI summary
To provide an optical module that can further be reduced in size, an optical module according to the present invention includes a casing, a light source that is mounted on a first surface of the casing and outputs light, a first reflection means that is arranged at a position facing the light source and reflects the light from the light source to a direction vertical to the first surface, a second reflection means that reflects the light from the first reflection means to a direction parallel to an output direction of the light from the light source, and a transmission means that transmits the light from the second reflection means.