Spectroscopic Device Fast Dispersion Deformable Mirror
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Solution Overview
Problem
Hyperspectral imaging techniques require a long time to acquire images for individual wavelengths after spectral dispersion, necessitating a faster method for spectral dispersion.
Innovation Solution
A spectroscopic device employing a modulation unit to convert light wavefronts by wavelengths and a demodulation unit to change the phase of selected wavelengths, allowing for fast spectral dispersion using adaptive optics principles, including a scatter plate for modulation and a deformable mirror for demodulation, enabling rapid conversion of light into parallel waves for efficient imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If spectral dispersion is performed using conventional scanning projection display devices with slit members and scanning mirrors, then images can be acquired on a wavelength-by-wavelength basis, but it requires a long time to acquire images for individual wavelengths
Solution Approach 1:
The patent replaces the mechanical scanning mirror system with a deformable mirror that uses phase modulation to achieve spectral dispersion. Instead of physically scanning light through mechanical movement, the deformable mirror modulates the phase of light waves to separate wavelengths, eliminating the time-consuming mechanical scanning process while maintaining spectral dispersion accuracy
Solution Approach 2:
The patent employs a deformable mirror that can dynamically adjust its surface shape to modulate light phases for different wavelengths. This dynamic phase modulation allows the system to rapidly switch between different wavelength selections without mechanical movement, significantly reducing the time required for spectral dispersion while maintaining measurement precision
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 enables fast spectral dispersion, allowing for the acquisition of images for multiple wavelengths in a short time, significantly reducing the time required for hyperspectral imaging compared to existing methods.
Implementation Method 1
a modulation unit that converts wavefront shapes of light according to wavelengths
Implementation Method 2
a demodulation unit that changes a phase of light of a selected wavelength within light whose wavefront shapes have been converted
Data Source
AI summary
A spectroscopic device and the like that are capable of fast spectral dispersion are provided. The spectroscopic device includes: a modulation unit for converting wavefront shapes of light according to wavelengths; and a demodulation unit for changing a phase of light of a selected wavelength within the light whose wavefront shapes have been converted, in such a way that the light changes into a predetermined state.