Optical Sensors & Detector – UV Photodetectors
GaP Blue Light Photodetector – TOCON_BLUE5
High-Accuracy Gallium Phosphide Sensor for Blue and Near-Visible Light Detection in Scientific and Industrial Applications
The TOCON_BLUE5 by SGLUX GmbH is a Gallium Phosphide (GaP) photodetector engineered for precise measurement of blue and near-visible radiation.
It features an integrated low-noise transimpedance amplifier providing a linear 0–5 V DC output proportional to the incident irradiance.
Operating within a spectral range of 360 – 480 nm and peaking at 460 nm, it is ideal for blue-LED characterisation, optical calibration, fluorescence monitoring, and industrial illumination control.
The device is factory-calibrated and traceable to NIST/PTB standards, ensuring repeatable, high-accuracy measurements.
Its rugged anodised aluminium housing, UV-grade optical window, and broad operating voltage range (5–24 V DC) make it a dependable solution for laboratory, OEM, and industrial optical applications requiring long-term stability and precision.
Understanding GaP Blue Light Photodetector - TOCON_BLUE5
The TOCON_BLUE5 photodetector employs a GaP photodiode inherently insensitive to red and infrared light, guaranteeing spectral purity in the blue-visible region.
With its integrated amplifier, the sensor delivers a clean 0–5 V output, enabling direct connection to data acquisition units, controllers, or SGLUX SENSOR MONITOR 5.0.
It offers fast response (< 1 s), low noise, and temperature stability, ensuring consistent readings even in variable environments.
Traceable factory calibration (NIST/PTB) guarantees measurement reproducibility for blue-light testing, optical instrumentation, and research applications, making TOCON_BLUE5 a highly reliable photometric detector.
Technical Specifications
| Feature | Specification |
|---|---|
| Function | Blue-light photodetector with integrated amplifier |
| Detector Type | Gallium Phosphide (GaP) photodiode with built-in transimpedance amplifier |
| Spectral Range | 360 – 480 nm |
| Peak Wavelength | 460 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 suppression of red and infrared light |
| Operating Voltage | 5 – 24 V DC |
| Operating Temperature | −20 … +85 °C |
| Housing Material | Anodised aluminium TOCON enclosure |
| Optical Window | UV-grade quartz or optical glass |
| Connector | BNC / M8 / custom cable options |
| Calibration | Factory-calibrated, traceable to NIST / PTB |
| Compatibility | SENSOR MONITOR 5.0 / VOLTCON / SGCD4 systems |
| Applications | Blue-LED testing, fluorescence detection, optical calibration, process illumination control |
Key Features and Advantages
Optimised Blue-Light Detection
Engineered for 360 – 480 nm wavelengths, the TOCON_BLUE5 offers exceptional sensitivity to blue-visible radiation, ideal for LED measurement, optical monitoring, and scientific instrumentation.
Inherent Infrared and Red-Light Rejection
The GaP photodiode’s intrinsic property ensures complete IR blindness, preventing cross-sensitivity and improving signal integrity in complex light fields.
Integrated Low-Noise Amplification
A built-in transimpedance amplifier provides a stable and linear 0–5 V DC output, eliminating the need for external circuitry and simplifying setup.
Traceable Calibration and Reliability
Each unit undergoes factory calibration traceable to NIST/PTB, ensuring internationally recognised accuracy, long-term stability, and reproducibility across measurements.
Fast Response and Temperature Stability
With sub-second response time and minimal drift under changing temperature or illumination, TOCON_BLUE5 ensures reliable operation in dynamic environments.
Rugged and Compact Design
The anodised aluminium housing and UV-grade window provide durability, dust protection, and long-term stability under continuous industrial use.
Seamless System Integration
Compatible with SENSOR MONITOR 5.0, VOLTCON, and SGCD4 interfaces, it supports plug-and-play integration into laboratory setups, production control, or automated data systems.
Collectively, these features make the TOCON_BLUE5 a trusted sensor for precision blue-light metrology, optical calibration, and industrial process verification.
Applications Across Industries
LED Testing and Manufacturing
Delivers precise irradiance measurement for blue-LED evaluation, ensuring consistency in brightness and spectral output during development and production.
Optical Calibration and Instrumentation
Acts as a reference detector in radiometer and photometer calibration, providing traceable results for metrology labs and QA facilities.
Fluorescence and Luminescence Monitoring
Ideal for fluorescence excitation and photoluminescence control, ensuring reproducibility in scientific and biomedical optical systems.
Industrial Process and Automation Control
Monitors blue-light exposure levels in coating, curing, printing, and inspection systems, enabling precise illumination control and process optimisation.
Display and Illumination Assessment
Supports lighting design and colorimetry, ensuring accurate measurement of the blue component for display quality and safety compliance.
Scientific and Environmental Research
Used in optical, photobiological, and atmospheric studies requiring stable, calibrated blue-light detection across varying conditions.
The TOCON_BLUE5 merges spectral precision, calibration traceability, and industrial durability, positioning it as a leading sensor for blue-light metrology and monitoring applications.
Why Choose United Spectrum Instruments?
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Authorised distributor for SGLUX TOCON detectors in India
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Expertise in UV, blue, and visible-light measurement systems
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Calibration traceable to NIST/PTB for international accuracy standards
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Offers custom solutions for OEM, research, and production applications
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Provides pan-India service, installation, and technical support
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Trusted by laboratories and industries for precision optical instrumentation
FAQs
What wavelength range does it detect?
360 – 480 nm, with a peak at 460 nm.
Is it sensitive to infrared light?
No – it is IR-blind, ensuring accurate blue-only detection.
Does it need an external amplifier?
No – it has a built-in low-noise amplifier delivering a direct 0–5 V DC output.
Is calibration included?
Yes – it is factory-calibrated and traceable to NIST/PTB standards.
What support is available in India?
United Spectrum Instruments provides local calibration, integration, and technical service across India.
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Have Any Questions ?
FAQs
What wavelength range does it detect?
360 – 480 nm, with a peak at 460 nm.
Is it sensitive to infrared light?
No – it is IR-blind, ensuring accurate blue-only detection.
Does it need an external amplifier?
No – it has a built-in low-noise amplifier delivering a direct 0–5 V DC output.
Is calibration included?
Yes – it is factory-calibrated and traceable to NIST/PTB standards.
What support is available in India?
United Spectrum Instruments provides local calibration, integration, and technical service across India.
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