Products, Materials + Tools | Jan 25, 2012

Instrument Systems Announces New Products for 2012

Instrument Systems launches new products for LED measurement and testing. The CAS 120 is a new series of the proven CCD Array Spectrometers, specifically developed for price-sensitive applications in spectral light measurement, such as LED production testing. The new own current source for LED testing is the LSM 350 4-quadrant source, developed to meet the requirements for production testing of LEDs and LED wafers.

Powerful Spectroradiometer for QC and Production
Instrument Systems launches the CAS 120 as a new series of the proven CCD Array Spectrometers. This measuring instrument was specifically developed for price-sensitive applications in spectral light measurement, such as LED production testing or quality assurance. Although costs have been reduced, technical innovations deliver even higher levels of reliability and robustness.

Proven optical design combines with innovative technology:
As in the industry leading CAS 140CT from Instrument Systems, a Crossed Czerny Turner Spectrograph with back-illuminated CCD detector forms the core of the spectrometer. This means that the CAS 120 guarantees exceptionally low straylight and a very high level of optical precision. Cost-intensive cooling of the CCD detector with 2048 x 14 pixels was deliberately omitted for the CAS 120. Instead, the temperature of the CCD detector is recorded each time a spectrum is measured, and an innovative algorithm automatically corrects the signal.

The newly developed filter wheel with density filters OD 1 to OD 4 comes without any mechanical position switches and always guarantees exact filter positions. It expands the total dynamic range of the CAS 120 to 8 decades, enabling the measurement of low and high light intensities without manual intervention in the test procedure. The CAS 120 is equipped with a USB interface and a TTL trigger I/O. The hardware trigger permits synchronization with other instruments which is essential for exact measurement results during fast production testing.

Versatile software support:
Instrument Systems supplies a DLL and a LabVIEW® driver for use in production environments and at automated measurement stations. SpecWin Pro and SpecWin Light spectral software packages have been developed for a wide range of laboratory applications with functions for analysis and documentation of test results.

New System solution for Production Tests with LEDs and LED Wafers
The LSM 350 4-quadrant source and measure unit from Instrument Systems was specifically developed to meet the requirements for production testing of LEDs and LED wafers. High test speeds and the multichannel capability make the LSM 350 an attractive solution for supplying current or voltage to LEDs with low to medium power output. Combination with high-precision array spectrometers from Instrument Systems creates a complete solution for optical and electrical testing carried out on LEDs.

As a bipolar current and voltage source, the LSM 350 offers all functions necessary for testing LEDs fast. The automatic polarity test feature can be used for single and multi-chip LEDs. Dedicated measurement ranges permit particularly precise testing at low forward currents of 1 μA, and measurement of reverse currents in the nA range. The modular concept includes an option to measure breakdown voltages up to 40 V. Very short settling times reduce the test cycles by up to 40% compared to those of most standard current sources.

The LSM 350 is fully integrated in the LED Tester. This proven turnkey system with the high-precision array spectrometers in the CAS 140CT or CAS 120 series from Instrument Systems allows test routines to be set up with fully automated testing and binning of LEDs and for testing LED wafers. The associated software permits a large number of different functions and evaluation options.

For additional information please visit www.instrumentsystems.com

About Instrument Systems GmbH:
Instrument Systems was founded in 1986 and is based in Munich. The company develops, manufactures and markets turnkey solutions for light measurement. Instrument Systems delivers a comprehensive range of light measuring products for industrial and research applications. These include high-performance array and scanning spectrometers as well as imaging photometers and colorimeters. Key applications are LED and display measurement, as well as spectroradiometry and photometry. Instrument Systems is one of the leading manufacturers for spectral light measurement systems. The innovative measuring systems from the Munich company deliver accurate and reliable results for all optical parameters of light sources in conformity with CIE recommendations. Instrument Systems provides support for the global customer base with backup from a comprehensive network of representatives.