Gigahertz Optik GmbH

Booth number 2626

Gigahertz Optik GmbH is a global manufacturer of metrological solutions for optical Radiation. Since January 1, 2020, Gigahertz Optik is part of the Berghof Group GmbH.

About us

Gigahertz Optik GmbH offers the high flexibility of a medium-sized German manufacturer, able to react to the needs of our customers and markets.

Due to the individual, intensive support of end users and OEM customers across many sectors of research and industry, Gigahertz Optik has won the long-term recognition and respect of its customers worldwide.

Since 1986, Gigahertz Optik has been supplying contemporary and innovative measurement technology offering our customers accuracy and ease of use.

Our main products include photodetector based light meters, spectroradiometers, spectrophotometers, integrating spheres and calibration standards.

We have always sought the best possible calibration for our products.

This is notably reflected in the accreditation of our calibration lab for optical radiation measurements for the measurement of spectral sensitivity and spectral irradiance according to ISO / IEC 17025 (Deutsche Akkreditierungsstelle GmbH, DAkkS D-K-15047-01-00).

Gigahertz Optik GmbH
An der Kaelberweide 12
82299 Tuerkenfeld

Phone: +49 8193 937000

Products and services

Gigahertz Optik GmbH is a globally positioned company. We are an equipment manufacturer and offer solutions in the measurement of optical radiation in the UV/VIS/NIR range. Our product portfolio includes
- easy-to-use spectroradiometers
- broadband measurement technology
- integrating sphere systems
- high-end spectroradiometers
- automated measurement systems and
- individual customer solutions. ´

Besides hardware we are also strong in software and services. Services are mainly provided by our measurement laboratory, which extends over 300m2. Our customers use our products either in

- research,
- quality assurance,
- production control or
- directly in the final application.

Product Categories:
- Broadband Detectors (UV, VIS,IR)
- Spectroradiometers, handheld and high-end devices (UV, VIS, IR)
- Spectrophotometers & Analysis Laboratory Systems for Transmission, Refelction, Absorption Measurement
- Integrating Spheres
- Calibration Light Sources
- Uniform Light Sources
- Measurement Services / Calibration

MSC15 Compact and handheld spectral light meter

Spectroradiometer for measurement of the illuminance, spectrum, light color, and color rendering with a 10 nm optical bandwidth and additional optical bandwidth correction (CIE214), precise cosine field of view function, Lithium ion battery with over 8 operation hours
Measurement range
1 lx to 350,000 lx, 360 nm to 830 nm
Typical applications
Precise spectral light meter for the lighting industry
Factory calibration. Traceable to international calibration standards

X1-1-UV-3726 UV radiometer for UV-C LEDs and low-pressure Hg germicidal lamps

For UV LEDs from 250 - 300 nm and 254 nm low pressure Hg lamps. Linear measuring range up to 1000 mW / cm² with X1 meter. N.E.I. 0.002 µW / cm². Used for: UVGI for disinf. of air and surfaces. Calibration of the spectral responsivity in 5 nm steps from 250 to 300 nm. Additional cal. factors for 254 nm and the spectral range average, 260-290 nm.

ISD-1.6-SP-Vxx Detector for the fast, time-resolved (ns) radiant power measurement of pulsed laser diodes and LEDs.

Detector for the measurement of the temporal intensity course and the radiant power of pulse lasers and pulse LEDs. In conjunction with the optometers P-9710-2 and P-9710-4 and a fast oscilloscope, the absolute peak performance of pulse lasers and pulse LEDs can be determined.

News & Innovations


The BTS2048-IR is the latest addition to Gigahertz Optik’s proven family of high performance, compact array spectroradiometers. It incorporates a TE-cooled extended InGaAs array  detector covering the spectral range from 950 nm to 2150 nm with 9nm optical resolution.

The device is fitted with cosine corrected field of view, electronic shutter, filter wheel and OD filters. It offers absolute radiometric measurements over a very wide dynamic range of more than 8 magnitudes. As with all BTS2048 Series spectrometers, the BTS2048-IR also integrates an independent broadband photodetector further extending measurement capabilities with regard to speed, triggering and dynamic range.

One essential quality feature of radiometric devices is their precise and traceable calibration. The BTS2048-IR is calibrated in Gigahertz-Optik’s ISO 17025 calibration laboratory (DAkkS accredited, D-K-15047-01-00).

LCR-20 with X1-UV372x

The newly developed LCR-20 is especially designed for the convenient in-situ measurement of UVC reflection properties. This is an important parameter of walls and ceilings when designing and evaluating upper room germicidal UV installations, for example. This handheld device is simply placed on the surface to be measured.

The integrated UV LED based light source is tracked by a reference sensor and corrected dynamically. This allows freehand measurements in the field since all influences to the light source such as temperature and device orientation are corrected. The sensors are connected to the versatile X1 optometer which directly displays the % reflectance.

The germicidal efficacy and photobiological hazard of low-pressure Hg lamp systems can be assessed with an additional UV-3725 detector connected to the X1.  For all UVC LEDs and far-UV based systems, such as 222 nm excimer lamps, the UV-3727 detector is ideal.

SphereSpectro 150 H

With the new SphereSpectro 150H spectrophotometer system, Gigahertz-Optik offers a unique solution for comprehensively analysing scattering samples. It simultaneously discriminates and quantifies both the spectral absorption and the scattering coefficients of scattering samples with a single, fast measurement.

The SphereSpectro 150H incorporates an innovative integrating sphere configuration that combines reflectance and transmittance measurements. From these two quantities, the absorption coefficient and the effective scattering coefficient are calculated based on the radiative transfer equation.

A convenient and large sample holder accommodates both liquid and solid (i.e. turbid and translucent) samples. Different versions are available for the UV, VIS and IR spectral ranges from 200 nm to 2150 nm.

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