Active spectroscopy
Experience next-generation material analysis with active spectroscopy and modular spectrometers powered by ams OSRAM technology
Active Spectroscopy for Accessible, High‑Precision Sensing
Spectroscopy is moving beyond labs into everyday products. This page introduces active spectroscopy—a flexible approach that uses multiple narrowband LED emitters with a broadband photodetector to capture material “signatures” for classification, quality control, and smart automation. Unlike traditional, complex laser setups, active spectroscopy leverages high‑stability ams OSRAM LEDs, sensitive photodetectors, and a precision analog frontend measurement controller to deliver reliable results at lower cost and with far greater configurability.
Why it matters: active spectroscopy maximizes signal‑to‑noise by using all emitted photons per measurement, supports reflective or, transmissive absorption measurements at diverse user selectable spectral configurations, and integrates cleanly with AI/ML for robust object classification.
At the heart of this solution is the Optical Measurement Kit (OMK)—a modular hardware platform for rapid spectral evaluation and prototyping. OMK lets you mix and arrange up to eight emitters and eight detectors, user configurable control sequences including automatic ambient light suppression, visualize data via a PC GUI, and iterate quickly toward the spectral setup your application needs
Optical Measurement Kit (OMK): Modular Active Spectroscopy Made Easy
The Optical Measurement Kit (OMK) from ams OSRAM is a breakthrough platform designed to make active spectroscopy accessible, flexible, and affordable for innovators in sensing, material analysis, and quality control. Unlike traditional spectrometers that rely on expensive, complex laser systems, the OMK leverages standard, high-stability LEDs and sensitive photodetectors to deliver precise spectral measurements in a modular, user-friendly package.
Key Features
- Modular hardware—mix and match up to 8 LEDs and 8 photodetectors for custom setups.
- Easy component swapping for tailored spectral coverage; includes subset of 18 LEDs and 5 photodetectors from ams OSRAM’s broad component portfolio, covering ultraviolet, visible and near-infrared spectral ranges.
- Intuitive PC software for measurement control and data visualization.
- Supports diverse reflective and transmissive absorption measurement modes.
- Clean data output for seamless AI/ML integration.
Related products
LED portfolio
A comprehensive portfolio of nearly 1,000 LED variants, covering ultraviolet (UV), visible, and near-infrared (NIR) spectra. These LEDs are available in various beam angles, package types, and spectral characteristics, and are known for their high spectral stability and reliability. The OMK comes with 18 standard LEDs, each labeled with peak wavelength and component type, and additional options are available for customization.
Photodetectors
More than 80 photodetector variants are available, offering different spectral filter characteristics and sensitivity options. The OMK includes five standard photodetectors, each with specific wavelength sensitivity and beam angle, suitable for a wide range of spectroscopic applications.
Analog Front End (AFE)
A specialist AFE chip from ams OSRAM that drives the LEDs and processes signals from the photodetectors. It supports up to eight LEDs and eight photodetectors, enabling precise control and synchronization for spectral measurements. The AS7150 features programmable current drivers, advanced signal processing, and flexible configuration options.