Spectrometry Preview Latency via Sequential Wavelength Filtering
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Solution Overview
Problem
Existing electronic apparatuses that perform spectrometry cannot update preview displays in real time while obtaining spectroscopic images, as they require completing the spectroscopic image acquisition process before generating a new color image, leading to delayed preview updates and inability to perform real-time color image displays.
Innovation Solution
An electronic apparatus with a spectral filter that sequentially outputs light of different wavelengths, an imaging element to capture corresponding images, and a composition unit to generate composite images, allowing for real-time display by continuously updating the wavelengths and composing red, green, and blue images, enabling simultaneous real-time display and spectrometry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a color image is generated after obtaining a spectroscopic image with respect to a plurality of wavelengths, then the spectroscopic image acquisition is completed with high precision, but the preview display update is delayed and real-time display cannot be achieved
Solution Approach 1:
The patent divides the wavelength range into multiple discrete wavelength bands (e.g., blue, green, red regions with specific nanometer intervals). Instead of acquiring the entire spectroscopic image at once, the system segments the acquisition process by obtaining images at multiple discrete wavelengths sequentially, then composites them to form the final color image. This segmentation enables intermediate preview displays during the acquisition process, reducing the perceived waiting time while maintaining measurement precision.
Solution Approach 2:
The patent performs preliminary actions by acquiring images at multiple discrete wavelengths and storing them before final composite image generation. These preliminarily acquired images at different wavelengths can be used to generate intermediate preview displays, allowing the user to see progress during the spectrometry process. This preliminary acquisition approach enables real-time feedback without compromising the final measurement precision.
2Measurement precision
If the spectral filter sequentially outputs light of different wavelengths to obtain spectroscopic images, then measurement precision is improved, but the display update speed decreases
Solution Approach 1:
The patent implements periodic action by sequentially switching the spectral filter to output light at different discrete wavelengths in a repeating cycle. The filter periodically changes between predetermined wavelength bands (e.g., cycling through blue, green, red wavelength regions), allowing the imaging element to capture images at each wavelength stage. This periodic wavelength switching enables the system to maintain high spectral measurement precision while generating intermediate composite images at regular intervals for real-time preview display.
Solution Approach 2:
The patent introduces dynamics by making the spectral filter's wavelength output changeable and controllable during the imaging process. Instead of a fixed wavelength filter, the system dynamically adjusts the filter to output light at different wavelengths sequentially, allowing flexible control over the acquisition process. This dynamic wavelength adjustment enables the system to balance between measurement precision and display update speed by controlling the rate and sequence of wavelength changes.
3Measurement precision
If multiple wavelength images are obtained sequentially through spectral filtering, then spectrometry accuracy is improved, but the complexity of image processing increases
Solution Approach 1:
The patent applies parameter changes by systematically varying the wavelength parameter across multiple discrete values during image acquisition. The spectral filter is controlled to output light at specific wavelength bands (e.g., 450nm, 480nm, 520nm, 560nm, 600nm, 650nm), and the system processes the corresponding series of monochromatic images. This structured parameter variation approach maintains high spectrometry accuracy while simplifying processing through regular wavelength intervals and systematic composite image generation algorithms.
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
Enables highly accurate real-time image display and spectrometry by continuously updating wavelengths and composing images, suppressing hue and grayscale value changes within predetermined thresholds, thus improving the efficiency of the analysis process.
Implementation Method 1
a spectral filter which selectively outputs light with a predetermined wavelength from input light, and is capable of changing the wavelength of the output light
Implementation Method 2
an imaging element which receives the light output from the spectral filter, and obtains a red image corresponding to the light with the red wavelength, a green image corresponding to the light with the green wavelength, and a blue image corresponding to the light with the blue wavelength
Data Source
AI summary
A spectrometry device includes a wavelength variable interference filter, a filter driving unit, an imaging element which obtains color images corresponding to light with a red wavelength, light with a green wavelength, and light with a blue wavelength, respectively, and a composition unit which generates a composite image in which the red image, the green image, and the blue image are composited, the filter driving unit causes the wavelength variable filter to change the red wavelength every time when the red image is obtained, causes the wavelength variable filter to change the green wavelength every time when the green image is obtained, and causes the wavelength variable filter to change the blue wavelength every time when the blue image is obtained.