DTS140 NVIS - the new standard for MIL-L-85762A / MIL-STD-3009 measurements

Based on the worldwide success of the CAS 140CT array spectrometers, Instrument Systems has developed the DTS140 NVIS for testing displays and panels according to MIL-L-85762A and MIL-STD-3009 standards, respectively. An efficient launching of light into the system is achieved with the TOP 200 telescopic optical probe.

Because of the robust nature of the array spectrometer technology, the DTS140 NVIS is in particular ideal for manufacturing and quality control applications that require long-term dependability and simple operation. Automated measurements can be realized by using the Pass/Fail test functions that are available in the SpecWin Pro software.


  • exceeds the requirements for MIL-L-85762A / MIL-STD-3009
  • correlates to traditional scanning spectroradiometers (for LED and incandescent panels)
  • modified Pritchard optics guarantees ideal positioning of the measurement spot
  • integrated alignment camera with a wide field of view
  • apertures and optical density filters selectable via software
  • new SpecWin Pro software provides for convenient analysis and documentation of results

DTS 140 NVIS Technical Specifications:


Spectral range

380 - 1040 nm

Wavelength accuracy

+/- 0.5 nm

Stray light (for LEDs)


PC connectivity

USB 2.0, optional PCI interface card

Filter wheel

Optical density filter OD1 to OD4

Polarization sensitivity

< 0.4 %

Measured spot size with HRL90 lens

0.075 / 0.15 / 0.3 / 0.5 mm

Further Information

DTS 140 NVIS Technology

For NVIS measurements it is critical that the extremely high intensity differences between the visible and near infrared spectral ranges are measured correctly (380 to 780 nm and 650 to 930 nm, respectively - the latter being the sensitivity range of the NVG Night Vision Goggle). Specific modifications to the CAS 140CT include further suppression of stray light and automatic adjustment of measurement sensitivity to cope with the differing signal intensities.