Optical Sensors & Detector – Custom UV Radiometers
UV Fluorescence and Retro-Reflection Cloting Meter
Advanced UV Fluorescence and Retro-Reflection Clothing Meter for Safety, Quality, and Visibility Measurement Applications
The UV Fluorescence and Retro-Reflection Clothing Meter is a precision optical instrument designed to measure both UV-induced fluorescence and retro-reflective performance of high-visibility safety garments and materials. It quantifies how clothing reacts under ultraviolet illumination—evaluating fluorescent brightness, chromatic response, and reflective intensity—ensuring compliance with international safety standards such as EN ISO 20471 and ANSI/ISEA 107. Using a high-stability UV light source and dual photometric sensors, the device simultaneously measures visible light emission from fluorescent fabrics and retro-reflection from reflective tapes or trims. Its portable design, fast data acquisition, and digital display make it ideal for laboratory testing, on-site inspection, and production quality assurance. With calibration traceable to NIST/PTB standards, the meter provides highly accurate, repeatable results, making it essential for manufacturers, textile labs, and certification agencies verifying visibility and safety performance of PPE and workwear under UV and visible light exposure.
Understanding UV Fluorescence and Retro-Reflection Cloting Meter
The UV Fluorescence and Retro-Reflection Clothing Meter evaluates the performance of high-visibility textiles by combining two key optical measurements:
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UV Fluorescence Measurement: Determines how much visible light the fabric emits when illuminated by UV radiation, assessing material brightness and colour enhancement.
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Retro-Reflection Measurement: Quantifies how effectively reflective materials return light toward its source, simulating night-time visibility conditions.
Using integrated UV and visible photodiodes, the instrument captures accurate spectral data in real time. Its compact, field-ready design supports both portable and benchtop use, ensuring precise, standard-compliant testing for industrial safety apparel, traffic clothing, and emergency gear.
Technical Specifications
| Feature | Specification |
| Measurement Parameters |
UV Fluorescence Intensity, Retro-Reflection Coefficient (cd·lx⁻¹·m⁻²)
|
| Spectral Range (UV Source) | 315 – 400 nm (UVA) |
| Detector Type |
Dual-channel SiC / Si Photodiodes (UV + Visible)
|
| Fluorescence Detection Range |
400 – 700 nm (Visible emission)
|
| Retro-Reflection Measurement Range | 1 – 2000 cd·lx⁻¹·m⁻² |
| Light Source |
High-stability UV LED / Xenon UV Lamp
|
| Response Time | < 100 ms |
| Viewing Geometry |
0° / 45° or Custom (in compliance with ISO 20471)
|
| Calibration |
Traceable to NIST / PTB standards
|
| Accuracy | ±3% of reading |
| Display |
Digital OLED / LCD (High contrast)
|
| Data Interface |
USB / RS-232 / Wireless (optional)
|
| Power Supply |
5 V DC / Rechargeable battery
|
| Operating Temperature | 0 … +50 °C |
| Dimensions / Weight |
Compact handheld / < 1.5 kg
|
Key Features and Advantages
Dual-Function Measurement (UV + Reflective)
The instrument combines UV fluorescence and retro-reflection measurement in one device, reducing the need for separate testing equipment.
Fluorescence Measurement for Visibility Enhancement
It measures visible fluorescence from safety fabrics under UV excitation, evaluating material brightness and UV-reactive colour efficiency.
Retro-Reflection Measurement for Night Visibility
By assessing reflected light returning to the source, the meter quantifies retro-reflective intensity, crucial for night-time garment visibility.
Standard Compliance and Calibration
Calibrated to international metrology standards (NIST/PTB), ensuring compliance with EN ISO 20471, ANSI/ISEA 107, and ASTM E809.
High Sensitivity and Accuracy
Dual photodiode design ensures accurate readings even under varying light or material reflectance conditions.
Fast and Portable Operation
Lightweight and battery-powered, the meter enables quick on-site inspection of PPE, uniforms, and retro-reflective surfaces.
Digital Display and Connectivity
Integrated data logging and USB/RS-232 output allow storage, analysis, and reporting of test data for quality documentation.
Durability and Ease of Use
Built from industrial-grade materials, the device operates reliably in textile factories, labs, and outdoor testing environments.
By integrating fluorescence and retro-reflective analysis, this meter provides a complete visibility assessment solution for manufacturers and safety inspectors.
Applications Across Industries
Personal Protective Equipment (PPE) Testing
Ensures compliance of high-visibility clothing (vests, jackets, helmets) with international safety visibility standards.
Textile and Fabric Manufacturing
Used in production lines and R&D labs to test fluorescent dye performance and reflective tape quality.
Transportation and Road Safety
Evaluates the reflectivity and UV visibility of uniforms worn by traffic police, construction workers, and first responders.
Firefighting and Emergency Services
Tests the performance of heat-resistant, reflective safety gear to maintain visibility during night or low-light conditions.
Aerospace and Defence
Used for quality assurance of reflective patches and UV-reactive coatings on pilot suits and emergency gear.
Research and Standardisation Laboratories
Ideal for laboratories involved in optical testing, material certification, and photometric calibration.
The UV Fluorescence and Retro-Reflection Clothing Meter ensures that safety garments maintain visibility under both daylight and night-time conditions, meeting stringent industrial and regulatory standards.
Why Choose United Spectrum Instruments?
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Authorised distributor of advanced UV and photometric measurement systems in India
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Local stock for faster delivery and reduced lead times
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Competitive pricing for industrial, textile, and safety compliance markets
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Expert technical consultation for integration and standard-based testing
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Nationwide after-sales service, calibration support, and on-site training
FAQs
What does the instrument measure?
It measures both UV-induced fluorescence and retro-reflective intensity of safety garments.
Which standards does it comply with?
EN ISO 20471, ANSI/ISEA 107, ASTM E809, and related textile visibility standards.
Can it be used for on-site testing?
Yes, it’s portable and battery-powered for field or factory inspection.
What materials can be tested?
Fluorescent fabrics, reflective tapes, trims, helmets, and coated textiles
How does United Spectrum support Indian customers?
Through local stock, technical expertise, calibration assistance, and nationwide service support.
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FAQs
What does the instrument measure?
It measures both UV-induced fluorescence and retro-reflective intensity of safety garments.
Which standards does it comply with?
EN ISO 20471, ANSI/ISEA 107, ASTM E809, and related textile visibility standards.
Can it be used for on-site testing?
Yes, it’s portable and battery-powered for field or factory inspection.
What materials can be tested?
Fluorescent fabrics, reflective tapes, trims, helmets, and coated textiles
How does United Spectrum support Indian customers?
Through local stock, technical expertise, calibration assistance, and nationwide service support.
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