Radiation-Refracting Body Rotation Control via Interferometry
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Solution Overview
Problem
Existing methods for image displacement using electromagnetic radiation lack precision and resolution in adjusting the position of the radiation-refracting body, leading to inaccuracies in image positioning and rotation control.
Innovation Solution
The method and apparatus utilize an interferometer to control and measure the rotation of a radiation-refracting body, such as a plane parallel glass plate, allowing for high-resolution image displacement and angle measurement with the same body, enabling absolute adjustment and displacement with precise reference values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional methods are used to adjust the rotation of the radiation-refracting body, then the device structure remains simple, but the measurement precision and adjustment resolution are insufficient
Solution Approach 1:
The patent combines the radiation-refracting body used for image displacement with an interferometer system for angle measurement into a single integrated apparatus. The same radiation-refracting body serves dual purposes: displacing the image and providing the refractive element for interferometric measurement, thereby achieving high measurement precision without proportionally increasing device complexity
Solution Approach 2:
The interferometer acts as an intermediary measurement system that uses light interference patterns to precisely measure the rotation angle of the radiation-refracting body. This intermediary approach enables high-resolution angle measurement through optical interference rather than direct mechanical sensing
2Manufacturing precision
If the radiation-refracting body is adjusted manually or with simple drives, then the device complexity is low, but the manufacturing precision and reproducibility of image position adjustment are insufficient
Solution Approach 1:
The interferometer provides real-time feedback on the rotation angle of the radiation-refracting body by measuring interference patterns. This feedback enables precise control and reproduction of image positions, as the system can accurately determine and replicate specific angular configurations of the refracting body
Solution Approach 2:
The patent replaces simple mechanical adjustment mechanisms with an optical interferometry-based measurement and control system. Instead of relying solely on mechanical precision, the system uses optical interference to detect and control the position of the radiation-refracting body with higher precision
3Reliability
If separate systems are used for image displacement and angle measurement, then each system can be optimized independently, but the overall device complexity increases
Solution Approach 1:
The radiation-refracting body serves multiple functions: it acts as the optical element for image displacement and simultaneously as the measurement target for the interferometer. This multi-functionality increases system reliability by using the same physical component for both operations, eliminating potential errors from separate calibration systems
Solution Approach 2:
The patent merges the image displacement function and the angle measurement function into a single integrated system. The interferometer and radiation-refracting body work together as one unified apparatus, reducing the number of separate components and interfaces while improving overall system reliability
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 approach achieves high-resolution, precise control over image displacement and rotation, providing absolute positioning and angle measurement with improved accuracy compared to traditional methods, using the same radiation-refracting body for image displacement and measurement.
Implementation Method 1
an electromagnetic beam that strikes, at an angle, the beam refracting body or a medium having a different density that is embedded in a surrounding medium and that has a planar surface is, in particular, refracted when it enters the medium. If the opposing interface of the body or medium is parallel to the incident surface, when the beam exits the medium, it is refracted again at the same angle in the opposing direction because of symmetry. Thus, the beam is offset
Implementation Method 2
Signals that correspond to the movements of the aforesaid body are generated by overlaying the radiation that penetrates the aforesaid body and the reference radiation due to the resultant interference
Implementation Method 3
the beam produced additionally by means of the interferometer unit, especially an electromagnetic beam, is oriented through the radiation-refracting body onto a reflecting, especially flat, surface, especially a planar mirror, and from there is reflected onto the interferometer unit
Data Source
AI summary
A method and apparatus operable for displacing an image, which is transmitted by electromagnetic radiation, perpendicular to the direction of radiation by use of a rotatably disposed radiation-refracting body, located in the path of an imaging beam, having a refractive index that differs from the surrounding medium with regard to the radiation used. The method allows for precise image displacement. The rotation of the radiation-refracting body causing the displacement is measured, and the change of the optical path length caused by the angular change in a further electromagnetic beam utilized for the measurement is determined by evaluating the superimposition of the radiation reflected by a planar reflecting surface with the incident electromagnetic radiation. Part of the electromagnetic measurement beam, which is reflected on the surface of the radiation-refracting body, strikes a measurement unit, which supplies an electrical signal as a function of the incident position of the electromagnetic radiation.