Dual Beam Parousiameter for Optical Property Measurement
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Solution Overview
Problem
Current methods for assessing the optical properties of materials, such as gloss and texture, are limited by indirectness and incomplete data fields, leading to inconsistencies in manufacturing processes across distributed manufacturing chains, resulting in variations in product appearance that can impact brand quality perception.
Innovation Solution
A dual beam parousiameter apparatus is introduced, which uses a hemispherical dome and base configuration with two radiation beams - an illumination beam and a calibration beam - to simultaneously measure the optical properties of a sample surface, allowing for comprehensive hemispherical intensity distribution analysis and real-time calibration, enabling faster and more accurate characterization of optical appearances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional single beam measurement methods are used, then device complexity is reduced, but measurement precision and reliability deteriorate due to inability to compensate for light source variations
Solution Approach 1:
The measurement system is segmented into two independent optical paths: a measurement beam path for analyzing sample optical properties and a reference beam path for capturing light source characteristics. This segmentation allows simultaneous acquisition of measurement data and calibration data, enabling real-time compensation for light source variations and improving measurement precision without requiring complex sequential operations
Solution Approach 2:
A beam splitter is introduced as an intermediary component to divide the incident light into measurement and reference beams. This intermediary element enables the system to simultaneously monitor both the sample interaction and the light source output, providing the necessary data for precision measurement while maintaining a relatively simple overall apparatus structure
2Measurement precision
If comprehensive hemispherical radiation patterns are captured, then measurement precision is improved, but measurement time increases
Solution Approach 1:
The dual beam system operates continuously with both measurement and reference beams active simultaneously throughout the measurement process. This continuous operation allows comprehensive hemispherical radiation pattern capture without requiring intermittent calibration stops, maintaining measurement precision while reducing total measurement time compared to sequential methods
Solution Approach 2:
The reference beam continuously captures light source characteristics in advance and in parallel with the measurement beam. This preliminary and concurrent calibration approach eliminates the need for separate calibration steps before measurements, enabling comprehensive optical characterization to be completed faster while maintaining high precision
3Productivity
If distributed manufacturing is implemented, then productivity and cost are improved, but manufacturing precision deteriorates due to inconsistency in optical properties
Solution Approach 1:
The measurement system captures multiple optical parameters including hemispherical radiation patterns, intensity distributions, and angular dependencies. By measuring and controlling these multiple parameters simultaneously, the system ensures consistent optical properties across components manufactured at different locations, maintaining manufacturing precision while supporting distributed production
Solution Approach 2:
The reference beam provides continuous feedback on light source variations, enabling real-time compensation and correction of measurement data. This feedback mechanism ensures that optical property measurements remain consistent across different manufacturing locations and times, supporting distributed manufacturing while maintaining high precision and uniformity
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 dual beam parousiameter provides precise and reproducible measurements of optical properties, reducing measurement time from hours to minutes, and compensates for light source variations, ensuring consistent product quality by capturing the full hemispherical radiation patterns and intensity changes, thus addressing the limitations of existing methods.
Implementation Method 1
A radiation source produces a first radiation beam, which is directed along a first optical path
Implementation Method 2
Illumination of the sample surface results in radiation being scattered by the sample surface
Implementation Method 3
An optical imaging device...images the projection screen...capturing the full hemispherical radiation patterns and intensity changes
Data Source
AI summary
A parousiameter having a dual beam setup and method for use thereof is provided for producing measurements of optical parameters. The dual beam parousiameter includes a hemispherical dome enclosure 318 sealed at the bottom with a base 320. A radiation source 302 produces radiation in two beams, an illumination beam 304 for illuminating a sample surface 308 and a calibration beam 330 for providing optical characterization information about the illumination beam 304. Each beam is guided into the hemispherical dome enclosure 318 via separate optical paths. An optical imaging device 324 is positioned to acquire an image of scatter radiation 314 scattered by the sample surface 308 illuminated by the illumination beam 304, and acquire an image of the calibration beam, simultaneously. The calibration beam image is used to compensate for variability in optical output of the radiation source 302 when analyzing the scatter radiation data.