Optical Sensors & Detector – UV Photodetectors
Galliumphosphide (GaP) Photodetector – TOCON_GAP5GAP
TOCON_GAP5GAP – Gallium Phosphide Photodetector for High-Precision Blue and Near-UV Light Detection and Measurement
The TOCON_GAP5GAP from SGLUX GmbH is a high-precision Gallium Phosphide (GaP) photodetector engineered for accurate blue and near-ultraviolet (UV-A) light detection in scientific, calibration, and process-monitoring environments.
It combines a solar-blind GaP photodiode with a low-noise transimpedance amplifier, producing a stable 0–5 V DC output proportional to incident irradiance.
Operating within a spectral range of 150 nm to 550 nm, the sensor achieves peak sensitivity near 440 nm, making it ideal for blue-light, UV-A, and fluorescence measurement while rejecting all infrared interference.
Factory-calibrated and traceable to NIST / PTB standards, it ensures traceable precision, reproducibility, and long-term stability.
Compact, rugged, and maintenance-free, the TOCON_GAP5GAP is the perfect choice for LED evaluation, optical calibration, and photometric quality control in laboratory and industrial applications.
Understanding Galliumphosphide (GaP) Photodetector - TOCON_GAP5GAP
The TOCON_GAP5GAP photodetector employs a Gallium Phosphide (GaP) photodiode designed for blue and near-UV wavelength detection while being completely insensitive to red and infrared radiation.
It offers a linear 0–5 V output from its built-in amplifier, ensuring easy integration with data acquisition systems, controllers, and SGLUX SENSOR MONITOR 5.0.
The device provides fast response times (<1 s), low noise, and superior stability under continuous illumination.
Its traceable factory calibration (NIST/PTB) guarantees measurement reliability for UV-A, blue-light, and fluorescence studies, making it ideal for both industrial and research-based photometric systems.
Technical Specifications
| Feature | Specification |
|---|---|
| Function | Gallium Phosphide (GaP) photodetector with integrated amplifier |
| Detector Type | GaP photodiode with internal transimpedance amplifier |
| Spectral Range | 150 – 550 nm (visible blue and near-UV) |
| Peak Wavelength | 440 nm |
| Output Signal | 0 – 5 V DC (linear with irradiance) |
| Sensitivity | High for blue and UV-A 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 or 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 and UV-A light measurement, LED testing, fluorescence detection, optical calibration, UV curing control |
Key Features and Advantages
Precise Blue and Near-UV Sensitivity
The TOCON_GAP5GAP detects wavelengths from 150 to 550 nm, optimised for blue-light and UV-A detection applications requiring high accuracy and spectral purity.
Infrared and Red-Light Immunity
The GaP detector is naturally blind to IR and red wavelengths, ensuring no spectral interference from thermal or ambient light sources.
Integrated Low-Noise Amplifier
A built-in transimpedance amplifier delivers a clean and linear 0–5 V signal, simplifying connectivity to measuring systems and controllers.
Traceable Calibration
Each unit is factory-calibrated and traceable to NIST/PTB, guaranteeing consistent and internationally recognised measurement accuracy.
High Stability and Quick Response
The sensor’s design ensures <1 second response time, low drift, and consistent output across long operational cycles.
Compact, Rugged, and Reliable
Encased in a durable anodised aluminium housing, it provides protection against mechanical and environmental stress in lab and industrial setups.
Plug-and-Play Integration
Fully compatible with SENSOR MONITOR 5.0, VOLTCON, and SGCD4, it supports seamless integration for real-time monitoring and automated control.
The TOCON_GAP5GAP offers traceable precision, IR rejection, and high blue/UV sensitivity, making it indispensable for LED testing, optical calibration, and scientific photometric applications.
Applications Across Industries
LED Testing and Characterisation
Ensures precise irradiance and spectral output measurement for blue and UV-A LED systems during R&D and production.
Fluorescence and Photoluminescence Measurement
Used for excitation-source monitoring in fluorescence spectroscopy, ensuring stable and reproducible data.
Optical Calibration and Instrumentation
Serves as a reference detector for calibration of optical radiometers, photometers, and scientific instruments.
UV Curing and Printing
Monitors UV-A and blue-light exposure for quality assurance in adhesive curing, coatings, and printing lines.
Photobiological and Environmental Research
Measures blue-light exposure in environmental studies, life sciences, and photobiological experiments.
Industrial Automation and Quality Control
Integrates into automated production lines to maintain consistent lighting conditions and process illumination.
With traceable calibration, spectral accuracy, and fast response, the TOCON_GAP5GAP is ideal for optical laboratories, LED manufacturers, and precision UV metrology applications.
Why Choose United Spectrum Instruments?
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Exclusive distributor of SGLUX TOCON_GAP5GAP in India
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Expertise in UV and visible-light measurement systems
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Local calibration traceable to NIST / PTB standards
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Affordable solutions for industrial, OEM, and research use
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Pan-India technical support, integration, and calibration service
FAQs
What wavelength range does the TOCON_GAP5GAP detect?
It covers 150–550 nm, peaking at 440 nm, ideal for blue and near-UV light.
Is it sensitive to infrared light?
No, it is IR-blind, ensuring accurate UV/blue-light readings without interference.
Does it need an external amplifier?
No – it has a built-in low-noise transimpedance amplifier for direct 0–5 V output.
Is calibration included?
Yes, it is factory-calibrated and traceable to NIST/PTB standards.
What support does United Spectrum offer in India?
United Spectrum provides local integration, calibration, and technical service across India for optical measurement systems.
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Have Any Questions ?
FAQs
What wavelength range does the TOCON_GAP5GAP detect?
It covers 150–550 nm, peaking at 440 nm, ideal for blue and near-UV light.
Is it sensitive to infrared light?
No, it is IR-blind, ensuring accurate UV/blue-light readings without interference.
Does it need an external amplifier?
No – it has a built-in low-noise transimpedance amplifier for direct 0–5 V output.
Is calibration included?
Yes, it is factory-calibrated and traceable to NIST/PTB standards.
What support does United Spectrum offer in India?
United Spectrum provides local integration, calibration, and technical service across India for optical measurement systems.
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