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    CAS 120 Array Spectrometer

    Category: Instrument Systems Tags: Instrument Systems, Light and Display, Spectrometer
    • Description
    • Features
    • Download Data Sheet
    • CAS 120-HR

    Description

    The CAS 120 is a new series of the proven CCD Array Spectrometers from Instrument Systems and presents an appealing solution for cost-sensitive applications like LED production and quality assurance. Although costs have been reduced, technical innovations deliver even higher levels of reliability and robustness. The CAS 120 complies with the high requirements for measuring accuracy and versatile application without any compromises.

    As in the proven CAS 140CT, a Crossed Czerny Turner Spectrograph forms the core of the spectrometer. This guarantees exceptionally low straylight and a very high level of optical precision. The CAS 120 also features an integrated density filter wheel and a dark current shutter.

    A back-illuminated CCD area sensor with 2048 x 14 pixels is used for all models. Vertical binning enhances the dynamic range. Cost-intensive cooling of the CCD detector has been deliberately omitted for the CAS 120. Instead, the temperature of the CCD sensor is recorded each time a spectrum is measured, and the signal is then corrected.

    Features

    Features:

    • Model versions UV/VIS and VIS
    • Precision spectrograph with integrated density filter wheel (OD 1 – 4)
    • Shutter for automatic dark current correction
    • 2048 x 14 pixels back-illuminated CCD detector, 16 bit ADC
    • Short integration times of 4 ms
    • USB interface
    • Hardware I/O trigger

    Applications: 

    • Accurate spectral measurements specifically for cost-sensitive applications (e.g. LED production or quality assurance)
    • Spectroradiometry in the UV-VIS range
    • Universal spectrometer for laboratory applications
    • Industrial production testing

    Available models:

    Model Spectral range [nm] Number of pixels Spectral
    resolution [nm]
    Datapoint
    interval [nm]
    CAS120-151 360 – 830 2048 x 14 2.2 0.3
    CAS120-152 200 – 800 2048 x 14 2.7 0.35
    Options
    CAS120-330 50 µm slit (instead of 100 µm standard slit)

    Download Data Sheet

    Download Data Sheet

    CAS 120-HR

    The high resolution CAS 120-HR spectroradiometer is based on Instrument Systems’ high-performance array spectrometer CAS 120, a product line that has achieved extraordinary success around the world. The CAS 120-HR is particularly designed for the measurement of narrow band emitters, e.g. laser diodes. Therefore, the spectroradiometers combine the demands of high spectral resolution and short testing times for sophisticated and price-sensitive measurement tasks in production and laboratory environments.

    All CAS 120-HR models are offered with a PTB traceable calibration. The integrated density filter wheel and the dark shutter additionally facilitate fully automated measurements over an extremely broad detector signal range. The spectroradiometers can be operated with Instrument Systems’ SpecWin Pro software for advanced laboratory applications. In addition, they are compatible with DLL and LabVIEW drivers for creating proprietary programs and integration into production equipment.

    Features:

    • Spectral resolution down to 0.2 nm FWHM (0.05 nm data point interval)
    • Typical measuring ranges of 80, 120 and 160 nm within the spectral range from
      800 to 1000 nm (further spectral ranges < 800 nm available on request)
    • High-end actively cooled CCD detector for utmost measuring sensitivity and stability
    • Integrated density filter wheel enables an extremely wide intensity measuring range
    • Software solutions for laboratory and production applications

    Applications:

    • System solutions particularly designed for testing narrow band emitters, e.g. laser
      diodes and VCSELs
    • Very accurate characterization of narrow band emitters with very short pulses in laboratory and production applications
    • Short testing times enable industrial quality control in the production line

    Technical Specifications:

    CAS 120-HR Array Spectroradiometer
    Accessible spectral range 800 – 1000 nm 1
    Detector Back-thinned back-illuminated CCD
    Number of pixels 2048 x 16
    Gratings 1200, 1500, 1800 lines/mm
    Measuring ranges (typical) 80 – 160 nm
    Spectral resolution (typical) 0.2 – 0.4 nm
    Data point interval (typical) 0.05 – 0.1 nm
    Wavelength accuracy 2) ± 0.05 nm
    Integration time 4 ms – 20 s
    Sensor dynamic range 3) 5500 : 1
    Non-Linearity ± 0.6%

    1 Further spectral ranges upon request.
    2 Applies to Penray lamp or laser.
    3 For a single acquisition with 4 ms integration time.

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