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High Irradiance LED Sources for UV Curing

High power UV and BLUE LED sources are appearing in several applications including UV and BLUE light curing.

Measurement of LEDs from 365 nm to 430 nm

The RCH-116 detector head is specially designed for high power LED light sources in the wavelength range from 365 nm to 440 nm. It offers a relatively flat (radiometric) spectral responsivity to minimize measurement uncertainty if any shift in LED wavelength occurs.

Calibration at Six Wavelengths

The detector is calibrated at typical LED wavelengths 365 nm, 375 nm, 385 nm, 395 nm, 405 nm and 430 nm at Gigahertz-Optik’s calibration laboratory. Certificates describe the calibration procedure and traceability.

RCH-116  Detector with Rigid Light Guide 

The RCH-116 detectors are supplied with a 22 cm / 8.7 inch long rigid light guide between the RADIN element and the photodiode/filter capsule. 

Traceable Calibrations 

Calibration of irradiance in W/cm² and W/m² is performed at Gigahertz-Optik’s Calibration Laboratory for Optical Radiation Quantities.

Optical radiation is spectrally defined as covering from UV-C to far infrared. In UV Curing applications only the high energy radiation in the UV-C to BLUE range is initialization the polymerization. UV Curing detectors should only detect UV within the specified wavelength range of the irradiation source.
Conventional UV detectors are built with a diffuser, UV bandpass filter and photodiode which are directly irradiated by the high intensity ultraviolet and heat radiation which can reduce life time and cause damage and temperature drift. Gigahertz-Optik’s RCH series UV detectors are built with a low profile housing and UV and temperature stable Radiation Integrator. The photodiode and UV bandpass filters are located outside the critical hot zone coupled to the RADIN diffuser by a flexible or rigid light guide.
RCH-1 Head with Rigid Light Guide
Product
Input optics

9 mm, diffuser

Dimensions

Measurement head:

Height: 8 mm / Diameter: 37 mm

Detector element:

Length: 65 mm / Diameter: 15 mm

Light Guide

Rigid, Length 22c m / 8.7 inch

spectral responsivity

index.php

max. Irradiance

40 W/cm²

Max. signal current

100 µA

Miscellaneous
temperature range

up to + 100 °C

Cable Length

50 cm

Connector

-1,-2 or -4

Type Description File-Type Download
Datasheet RCH-116 PDF
Produktname Product Image Description Show product
X1 Four-channel USB optometer designed for mobile use.

Features: Compact device for use with all photometric, radiometric, colorimetric, plant-physiologic and photo-biologic measurement heads from Gigahertz-Optik. USB interface. Battery operation or power supply USB.
P-9710 High-quality device for measurement of CW-, single pulse and modulated radiation.

Features: Optometer for all detector heads with calibration data plug. Measurement modes: CW, pulse energy, dose, peak-to-peak, effective luminous intensity (Blondel-Rey), data logger, battery, main power, RS232
P-2000 Two-channel optometer.

Features: For use with most photometric and radiometric detectors supplied by Gigahertz-Optik. Modes: CW, pulse energy from both single and multiple flashes, effective luminous intensity (Blondel-Rey), data logger and others.
P-9801 Eight-channel optometer.

Features: State-of-the-art 8 channel laboratory optometer with a signal amplifier and sample & hold ADC per channel for clocked recording of the measurement signals. RS232 and IEEE488 interface. Trigger input and output.
P-9802 Light meter for laboratory use with up to 36 measurement heads.

Features: For use with up to 36 photometric and/or radiometric measurement heads. RS232 interface.
X1-RM Optometer in 3HE housing for use in 19” racks.

Features: Its USB and RS232 remote interface and two additional RS232 device interfaces make the device highly flexible when it comes to system integration. Its four signal inputs enable use with all photometric, radiometric, colorimetric, plant-physiologic and photo-biologic measurement heads from Gigahertz-Optik.
X1-PCB Optometer module.

Feature: The X1 optometer is available as a printed circuit board either with or without a housing and is suited for applications that do not require a keyboard or display. Four signal inputs enable connection with all measuring heads from Gigahertz-Optik.
P-9202-4 Fast response time trans-impedance signal amplifier.

Features: High quality analogue amplifier with current-voltage conversion. Minimal diode offset voltage for short circuit operations. Bandwidths of up to 330kHZ. 1µs rise time. Large I-U amplification range from 10pA/V to 1mA/V.
P-9202-5 Universal trans-impedance signal amplifier.

Features: High quality analogue amplifier with current-voltage conversion. Minimal diode offset voltage (1mV) for short circuit photodiode operations. 5µs to 20ms rise time depending on the amplification. Large I-U amplification range – 1×10-10A/V to 1×10-3 A/V.
P-9202-6 Highly sensitive trans-impedance signal amplifier.

Features: High quality analogue amplifier with current-voltage conversion with minimal diode offset voltage (0.5mV) for short circuit photodiode operation of . 2.5s to 25s rise time depending on the amplification. Large I-U amplification range – 1×10-11A/V to 1×10-4 mA/V.
X1-PCBC Optometer module.

Feature: The X1 optometer is available as a printed circuit board either with or without a housing and is suited for applications that do not require a keyboard or display. Four signal inputs enable connection with all measuring heads from Gigahertz-Optik.
Article-Nr Modell Description Request / Compare
Product
- RCH-116-1

Detector with -1 connector and rigid light guide

15298855 RCH-116-2

Detector with -2 connector and rigid light guide

15297984 RCH-116-4

Detector with -4 connector and rigid light guide

Re-calibration
15300571 K-UV-SR

Calibration of relative spectral responsivity from 250 nm - 550 nm

15300468 K-RCHn16-S

Calibration

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