Relief Structure Exposure Profiling for Accurate Floor Thickness
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for determining exposure conditions for relief structures, particularly for achieving a desired floor thickness, are complex, error-prone, and time-consuming, relying on external means that require cumbersome handling of relief precursors.
Innovation Solution
A method and system for determining exposure time and intensity by exposing a relief precursor at multiple points with varying conditions, allowing for automatic control of exposure time and intensity, followed by developing and measuring the precursor to identify representative points for the desired feature, enabling accurate determination of exposure conditions without complex tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If prior art methods are used to determine exposure conditions, then external means are employed to measure and calculate exposure parameters, but the process becomes complex, error-prone and time-consuming
Solution Approach 1:
The patent uses a test strip with multiple test fields that are exposed under different conditions to create a physical record of exposure outcomes. This test strip serves as a simplified copy or representation of the actual printing plate exposure process, allowing determination of optimal exposure conditions without complex external measurement equipment. The test strip captures the relationship between exposure parameters and floor thickness in a visually inspectable format.
Solution Approach 2:
The method performs preliminary exposure tests on a test strip before actual production exposure. By exposing multiple test fields with varying exposure times and/or intensities in advance, the system establishes a reference profile that guides subsequent production exposures. This preliminary action eliminates the need for complex real-time measurement systems during actual printing plate fabrication.
2Reliability
If prior art methods are used to determine exposure conditions, then complex external means are employed, but the process takes a long time
Solution Approach 1:
The patent combines multiple exposure tests with different parameters into a single test strip exposure process. By exposing multiple test fields simultaneously on one plate with varying exposure conditions, the method determines the optimal exposure parameters in a single operation rather than through multiple separate measurements and calculations, significantly reducing the time required while maintaining reliability.
Solution Approach 2:
The test strip itself serves as both the test subject and the measurement reference. The exposed test fields provide visual or measurable indicators of floor thickness that directly indicate optimal exposure conditions, eliminating the need for separate external measurement and calculation processes. The system determines exposure conditions using its own output rather than requiring external verification tools.
3Ease of operation
If external means are used to determine exposure conditions, then measurement procedures are complex, but measurement errors increase
Solution Approach 1:
The patent utilizes visual changes in the exposed test fields that correlate with floor thickness. The degree of exposure creates observable differences in the test strip that allow direct determination of optimal exposure conditions without complex measurement procedures. These visual changes provide an intuitive and accurate reference for setting exposure parameters.
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
This approach provides a faster and more reliable method for determining exposure conditions, reducing measurement errors and material waste, while ensuring high accuracy in achieving the desired feature, such as floor thickness, through efficient use of the precursor area.
Implementation Method 1
the relief precursor is exposed to electromagnetic radiation and developed by removing non-exposed material
Data Source
AI summary
A method to determine an exposure time and/or intensity to be used for obtaining a desired feature of a relief structure, in particular a desired floor thickness, includes exposing a first side of a relief precursor with electromagnetic radiation, where the exposure is done in an area having a first position A and a second position B and is performed such that for a plurality of points between said first and second positions A, B the values for the exposure time and the exposure intensity are known, wherein the exposure time and/or the exposure intensity are automatically controlled to be varied at said plurality of points; determining one or more points of said plurality of points representative for the desired feature; and determining the required exposure time and/or exposure intensity for the desired feature based on the determined one or more points and the known values.