Imaging Apparatus Wavelength Division for Contrast and Color
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Solution Overview
Problem
Conventional imaging apparatuses face challenges in achieving sufficient image quality, particularly in medical applications, due to limitations in resolution and color reproduction when using either broadband or narrow-band lighting, which can result in insufficient contrast and resolution for observing details and colors.
Innovation Solution
An imaging apparatus that employs a prism to spectrally divide incident light into narrow-band, broadband, and infrared wavelength components, using CMOS image sensors to capture and process these bands separately, allowing for enhanced contrast and color reproduction by combining the images from these bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If broadband light is used for imaging, then color information is captured, but resolution and contrast are insufficient
Solution Approach 1:
The imaging system segments the broadband light into multiple wavelength bands (first wavelength band, second wavelength band, third wavelength band) using wavelength division. This allows separate capture of different spectral components by multiple image sensors, thereby improving resolution and contrast while maintaining color information through the segmented approach
2Measurement precision
If narrow-band light is used for imaging, then contrast and resolution are improved, but color reproduction is limited
Solution Approach 1:
The system employs multiple image sensors, each sensitive to different wavelength bands, to simultaneously capture both narrow-band (high contrast) and broadband (color) information. This multi-functional approach allows the system to achieve high contrast using narrow-band light while maintaining color reproduction capability through the combined data from multiple sensors
3Measurement precision
If multiple wavelength bands are captured separately, then image quality is improved, but device complexity increases
Solution Approach 1:
The system adds a wavelength dimension to the traditional two-dimensional image capture by introducing wavelength division. This allows multiple image sensors to capture different spectral components simultaneously, improving image quality through multi-dimensional data collection while managing complexity through structured optical 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
The solution ensures improved image quality by increasing contrast and resolution, enabling accurate color reproduction and sufficient image detail, thereby addressing the limitations of conventional imaging systems.
Implementation Method 1
an optical element configured to separate incident light into light components in at least two types of wavelength bands
Data Source
AI summary
An imaging apparatus includes an optical element configured to separate incident light into light components in at least two types of wavelength bands. The incident light includes light emitted from a narrow-band light source. At least one light component of the light components in the at least two types of wavelength bands separated by the optical element is light in a narrow band separated by a bandwidth corresponding to a width of a wavelength of the light emitted from the narrow-band light source.