Bioptic Barcode Reader With Selective Dual-Color Illumination
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Solution Overview
Problem
Traditional bioptic barcode readers lack the ability to perform both monochrome and multicolor imaging, limiting their functionality in capturing barcode and object image data, and are prone to issues like theft detection and improper barcode affixation.
Innovation Solution
A bioptic barcode reader system with dual imaging capabilities, utilizing a primary monochromatic imager for barcode scanning and a secondary multicolor imager for object identification, synchronized with controlled illumination to capture appropriate data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single imager is used for both barcode scanning and object recognition, then device complexity is reduced, but measurement precision and functionality are compromised
Solution Approach 1:
The system divides the imaging function into two separate imager assemblies: a first imager assembly optimized for monochrome barcode scanning and a second imager assembly optimized for multicolor object recognition. This segmentation allows each imager to be specialized for its specific function, maintaining high measurement precision for both barcode scanning and object recognition while enabling the system to handle different imaging requirements independently
Solution Approach 2:
The bioptic scanner is designed with dual imager assemblies that provide multi-functionality: the first imager assembly handles barcode scanning while the second imager assembly handles object recognition. This universal design allows a single device to perform multiple functions (barcode reading and object identification) that would otherwise require separate devices, resolving the contradiction between device complexity and functional precision
2Ease of manufacture
If monochrome imaging is used for barcode scanning, then cost effectiveness and bandwidth narrowness are improved, but color information is lost
Solution Approach 1:
The system segments the imaging tasks by assigning monochrome imaging to the first imager assembly for barcode scanning and multicolor imaging to the second imager assembly for object recognition. This segmentation allows the barcode scanning function to use cost-effective monochrome imaging without losing color information, as the second imager assembly captures color data separately for object identification purposes
Solution Approach 2:
The system introduces a second imager assembly as an intermediary that captures multicolor images to compensate for the color information lost by the monochrome first imager assembly. This intermediary component enables the system to maintain cost effectiveness through monochrome barcode scanning while preserving color information through parallel multicolor imaging
3Loss of information
If multicolor imaging is used for object recognition, then color information is captured, but barcode scanning precision may be compromised
Solution Approach 1:
The system segments imaging functions into two specialized imager assemblies: the first imager assembly uses monochrome imaging optimized for high-precision barcode scanning, while the second imager assembly uses multicolor imaging for object recognition. This segmentation ensures that barcode scanning precision is maintained by the monochrome imager without being compromised by the color processing requirements of the multicolor imager
4Device complexity
If a single illumination source is used, then device complexity is reduced, but illumination intensity and spectral matching for different imaging modes cannot be optimized
Solution Approach 1:
The system segments the illumination function into two separate illumination assemblies: a first illumination assembly paired with the monochrome imager for barcode scanning and a second illumination assembly paired with the multicolor imager for object recognition. This segmentation allows each illumination assembly to be optimized for its specific imaging mode, with the first illumination assembly providing intensity-optimized monochrome lighting and the second illumination assembly providing color-optimized multicolor lighting
Solution Approach 2:
The system applies local quality by providing different illumination characteristics to different imaging assemblies: the first illumination assembly is optimized with specific intensity and spectral properties for monochrome barcode scanning, while the second illumination assembly is optimized with different spectral properties for multicolor object recognition. This local optimization ensures each imaging function receives illumination tailored to its specific requirements
Data Source
AI summary
A bioptic barcode reader is disclosed for selective use of illumination color to capture appropriate data. The bioptic barcode reader includes a housing and a primary imager positioned within the housing, configured to scan a target object during a first time period. The bioptic barcode reader further includes a primary illumination source positioned within the housing configured to emit primary illumination in a primary wavelength range during the first time period. The bioptic barcode reader further includes a secondary imager configured to capture one or more images of a target object during a second time period. The bioptic barcode reader further includes a secondary illumination source configured to emit secondary illumination in a secondary wavelength range during the second time period, wherein the second time period and first time period are interleaved and the secondary wavelength range is different from the primary wavelength range.