Optical Sensors & Detector – UV Photodetectors
GaP Blue Light Photodetector -TOCON_BLUE9
High-Precision Gallium Phosphide Sensor for Blue and Near-UV Light Detection, Calibration, and Photometric Measurement
The TOCON_BLUE9 from SGLUX GmbH is a precision Gallium Phosphide (GaP) blue-light photodetector designed for accurate detection of visible-blue and near-ultraviolet (UV-A) radiation in optical calibration, LED characterisation, and industrial process-monitoring environments.
It combines a solar-blind GaP photodiode with a low-noise transimpedance amplifier, providing a stable 0 – 5 V DC output proportional to the incident irradiance.
Operating over a spectral range of 350 – 480 nm and peaking at 465 nm, the TOCON_BLUE9 delivers high sensitivity to blue light while rejecting all infrared interference.
Each unit is factory-calibrated and traceable to NIST / PTB standards, ensuring measurement reliability and repeatability.
Rugged, compact, and maintenance-free, it is ideal for blue-LED testing, optical calibration, phototherapy validation, and industrial quality-control applications requiring accurate blue-light quantification.
Understanding GaP Blue Light Photodetector -TOCON_BLUE9
The TOCON_BLUE9 utilises a GaP photodiode optimised for visible-blue wavelength detection while being naturally insensitive to red and infrared radiation.
It features an integrated amplifier that outputs a linear 0 – 5 V signal, making it directly compatible with SGLUX SENSOR MONITOR 5.0, VOLTCON, or other data-acquisition systems.
Offering fast response (< 1 s), low noise, and long-term stability, it ensures consistent readings even under continuous illumination.
Its factory calibration (NIST/PTB traceable) guarantees reliable, reproducible performance for blue-light, phototherapy, and LED-based process-control measurements in both research and industrial environments.
Technical Specifications
| Feature | Specification |
|---|---|
| Function | GaP blue-light photodetector with integrated amplifier |
| Detector Type | Gallium Phosphide (GaP) photodiode with internal transimpedance amplifier |
| Spectral Range | 350 – 480 nm |
| Peak Wavelength | 465 nm |
| Output Signal | 0 – 5 V DC (linear with irradiance) |
| Sensitivity | High for blue-visible and near-UV light |
| Accuracy | ± 5 % of reading |
| Response Time | < 1 s |
| Visible / IR Rejection | Excellent IR blindness |
| Operating Voltage | 5 – 24 V DC |
| Operating Temperature | −20 … +85 °C |
| Housing Material | Anodised aluminium TOCON enclosure |
| Optical Window | UV-grade quartz / optical glass |
| Connector | BNC / M8 / custom cable output |
| Calibration | Factory-calibrated, traceable to NIST / PTB |
| Compatibility | SENSOR MONITOR 5.0 / VOLTCON / SGCD4 systems |
| Applications | Blue-LED testing, optical calibration, phototherapy validation, industrial process control |
Key Features and Advantages
High Blue-Light Sensitivity
The TOCON_BLUE9 operates across 350 – 480 nm, delivering peak sensitivity at 465 nm. It is optimised for blue-light detection in optical calibration, LED evaluation, and photometric quality-assurance systems.
Infrared and Red-Light Immunity
Its GaP detector is inherently blind to IR and red light, ensuring that only the intended blue-wavelength radiation is measured, free from background interference.
Integrated Low-Noise Amplifier
The built-in transimpedance amplifier provides a clean, linear 0–5 V DC output, allowing direct connection to monitoring systems without additional circuitry.
Traceable Calibration
Each unit is factory-calibrated and traceable to NIST/PTB standards, providing internationally recognised accuracy and confidence in measurement results.
Fast Response and Long-Term Stability
A < 1 second response and excellent signal stability make TOCON_BLUE9 suitable for both steady-state and dynamic blue-light monitoring.
Rugged and Compact Design
Encased in a robust anodised aluminium housing, it withstands industrial stress, humidity, and vibration while maintaining calibration integrity.
Plug-and-Play Integration
Fully compatible with SGLUX SENSOR MONITOR 5.0, VOLTCON, and SGCD4 controllers, enabling simple integration into measurement or automation systems.
With its traceable precision, fast response, and excellent blue-light sensitivity, the TOCON_BLUE9 is indispensable for LED testing, optical calibration, and photometric quality assurance.
Applications Across Industries
Blue-LED Testing and Characterisation
Enables precise irradiance and intensity measurement for blue-light LEDs used in displays, curing, and illumination systems.
Optical Calibration and Instrumentation
Acts as a reference detector for calibrating radiometers, photometers, and optical sensors used in laboratory and manufacturing environments.
Phototherapy and Medical Applications
Validates blue-light intensity in dermatology, neonatal care, and photobiological research, ensuring compliance with treatment protocols.
Display and Lighting Metrology
Used for testing and verifying blue component accuracy in monitors, projection systems, and architectural lighting.
Industrial Process Monitoring
Monitors blue-light exposure in curing, coating, and inspection systems for consistent process control and product quality.
Research and Environmental Measurement
Supports scientific experiments involving blue-light exposure, fluorescence excitation, and biological response studies.
The TOCON_BLUE9 delivers fast, accurate, and stable performance across research, production, and industrial applications where precise blue-light quantification is essential.
Why Choose United Spectrum Instruments?
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Exclusive distributor of SGLUX TOCON_BLUE9 in India
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Proven expertise in visible and UV-light measurement systems
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Local calibration traceable to NIST / PTB standards
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Cost-effective, research-grade and industrial-ready solutions
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Pan-India technical support, integration, and after-sales service
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Calibration renewal and system-integration assistance for all SGLUX sensors
FAQs
What is the wavelength range of TOCON_BLUE9?
350 – 480 nm, peaking at 465 nm for blue-light measurement.
Is it sensitive to infrared light?
No – it is IR-blind, ensuring accurate blue-light readings without interference.
Does it need an external amplifier?
No – it includes an integrated low-noise amplifier for direct 0–5 V output.
Is calibration provided?
Yes – each unit is factory-calibrated and traceable to NIST / PTB.
What support does United Spectrum offer in India?
Comprehensive local integration, calibration, and technical support for SGLUX optical detectors nationwide.
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FAQs
What is the wavelength range of TOCON_BLUE9?
350 – 480 nm, peaking at 465 nm for blue-light measurement.
Is it sensitive to infrared light?
No – it is IR-blind, ensuring accurate blue-light readings without interference.
Does it need an external amplifier?
No – it includes an integrated low-noise amplifier for direct 0–5 V output.
Is calibration provided?
Yes – each unit is factory-calibrated and traceable to NIST / PTB.
What support does United Spectrum offer in India?
Comprehensive local integration, calibration, and technical support for SGLUX optical detectors nationwide.
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