Segmented Hyperspectral Lighting for Compact Image Acquisition
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Solution Overview
Problem
Conventional lighting devices for acquiring hyperspectral or multispectral images are inefficient due to high heat generation, large power consumption, and spatial requirements, making them unsuitable for small devices, and struggle to extract accurate information from specific wavelength components.
Innovation Solution
An image acquiring device with a light source portion comprising multiple groups of emitters emitting different wavelengths, a circuit for independent control of emitter segments, and a driver to control the segments' strength and timing, allowing for precise wavelength selection and efficient power use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a typical lighting device covering a wide wavelength band (UV, halogen, or LED) is used to acquire hyperspectral or multispectral images, then the wavelength coverage is improved, but heat generation and power consumption increase significantly
Solution Approach 1:
The emitter portion is divided into multiple segments, each segment corresponding to a specific wavelength range. The driver portion controls each segment independently, allowing only the required wavelength segments to be activated at any given time, thereby reducing overall power consumption while maintaining wide wavelength coverage capability
Solution Approach 2:
The lighting device transitions from a static wide-spectrum emission mode to a dynamic segmented control mode. The driver portion dynamically activates specific segments based on the required wavelength information, enabling adaptive power consumption that matches the actual imaging needs
2Adaptability or versatility
If a typical lighting device covering a wide wavelength band is used to acquire hyperspectral or multispectral images, then the wavelength coverage is improved, but heat generation increases
Solution Approach 1:
By segmenting the emitter portion into wavelength-specific groups, the device activates only the necessary segments for each imaging task. This reduces the total number of emitters operating simultaneously, thereby decreasing cumulative heat generation while preserving the capability to cover wide wavelength ranges when needed
Solution Approach 2:
The invention extracts and isolates specific wavelength segments from the overall emitter array. By controlling individual segments rather than operating the entire emitter array continuously, the system removes unnecessary heat-generating elements from active operation, reducing overall thermal output
3Adaptability or versatility
If a typical lighting device with wide wavelength width is used, then broad spectral coverage is achieved, but it becomes difficult to extract and use information on a target wavelength
Solution Approach 1:
The emitter portion is segmented into distinct groups, with each segment corresponding to a specific wavelength range. This segmentation enables selective activation of segments matching the target wavelength, improving measurement precision by eliminating interference from other wavelength ranges while maintaining broad spectral coverage through the complete set of segments
Solution Approach 2:
Different segments of the emitter portion are assigned different wavelength characteristics. When imaging a specific target wavelength, only the corresponding segment with matching local wavelength quality is activated, enabling precise extraction of target wavelength information while preserving the overall system's broad spectral coverage capability
4Ease of operation
If a controller for controlling a typical lighting device is used, then the lighting device can be operated, but the controller occupies a large space making it inadequate for small devices
Solution Approach 1:
The controller is divided into a driver portion that independently controls each segment of the emitter array. This segmented control architecture reduces the complexity of the controller compared to managing a single large emitter array, enabling more compact integration while maintaining full controllability of all wavelength segments
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 the acquisition of multispectral or hyperspectral images in small devices with reduced power consumption and improved wavelength resolution, enhancing usability and device compactness.
Implementation Method 1
The light source portion 200 may include an emitter portion 210 and an optical member 250. The emitter portion 210 may include at least one emitter 211. Each emitter 211 may emit light of a predetermined wavelength or a wavelength band including the predetermined wavelength
Data Source
AI summary
Provided is an image acquiring device for easily acquiring a hyper spectral image in a small device and enhancing wavelength resolution, the device which includes a light source portion and a sensor portion. The light source portion includes an emitter portion having a plurality of groups of emitters configured to emit light of different wavelengths, a circuit portion dividing the emitter portion into a plurality of segments and configured to control the plurality of segments independently, and a driver portion configured to control the circuit part so that the plurality of segments are driven at different strengths or at different times.