Polarized Light Scan Part for Compact Radar and Display Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing radar apparatuses require high-accurate adjustment of the positional relationship between scan and polarized light separation elements, and they have a large number of components due to separate optical systems for scanning and image display.
Innovation Solution
A radar apparatus with a polarized light separation member that scans electromagnetic waves by rotating around a predetermined axis, eliminating the need for positional adjustment between scan and polarized light separation elements, and a light scan apparatus that shares an optical system for both radar and image display using a polarized light scan part to combine and separate visible and invisible light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate optical systems are used for radar and image display, then each function can be independently optimized, but the number of components increases and the system becomes more complex
Solution Approach 1:
The patent combines the radar optical system and image display optical system into a single shared optical system. The laser light source, scanning mirrors, and optical paths are共用 between both functions, reducing the number of components while maintaining independent optimization of each function through software control and separate signal processing channels.
Solution Approach 2:
The optical system is designed to serve multiple functions simultaneously. The same laser beam can be used for both radar detection and image display by controlling the scanning mirrors and beam splitters, making the system universal and eliminating the need for separate dedicated optical paths for each function.
2Reliability
If separate scan element and polarized light separation element are used, then each element can be independently optimized, but high-accurate adjustment of positional relationship is required
Solution Approach 1:
The patent merges the scan element and polarized light separation element into a single integrated component. The scanning mirror is designed with built-in polarized light separation functionality, eliminating the need for separate elements and their precise positional alignment, while still allowing independent optimization of scanning and polarization separation performance within the integrated design.
Solution Approach 2:
The integrated element uses asymmetric optical design where the scanning function and polarized light separation function are implemented with different optical paths and angles within the same component. This asymmetric design allows each function to be optimized independently while the physical integration eliminates alignment requirements between separate 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
The solution reduces the number of components, eliminates the need for positional adjustments, and allows for a shared optical system in the light scan apparatus, resulting in a more compact and efficient radar and light scan system.
Implementation Method 1
a polarized light separation member configured to pass a preset first component of the electromagnetic wave and reflect a preset second component of the electromagnetic wave. The first and second components, respectively, are polarized lights having first and second polarization directions, which are perpendicular to each other
Implementation Method 2
The scan part scans the second component of the electromagnetic wave in a predetermine scan angle range by rotating the polarized light separation member around a predetermined rotation axis
Data Source
AI summary
A radar apparatus for detecting a distance to an object by receiving an electromagnetic wave reflected by the object is disclosed. The radar apparatus comprises a scan part and an electromagnetic wave emitter. The scan part includes a polarized light separation member configured to pass a preset first component of the electromagnetic wave and reflect a preset second component of the electromagnetic wave. The first and second components, respectively, are polarized lights having first and second polarization directions, which are perpendicular to each other. The scan part scans the second component of the electromagnetic wave in a predetermine scan angle range by rotating the polarized light separation member around a predetermined rotation axis. The electromagnetic wave emitter emits the electromagnetic wave toward the polarized light separation member of the scan part.