Eurocopter has been under contract to the French and German ministries of defence for 5 years to develop the Tiger, a second generation anti-tank helicopter. A piloting thermal imager has been installed on a steerable platform in the helicopter nose in order to achieve the possibility of flying round the clock. In addition to this sensor, which is sensitive at a wavelength of 10 mu m, the German side has proposed using an integrated helmet system (IHS) in the PAH 2. This helmet, manufactured by GEC-Marconi Avionics, incorporates two cathode ray tubes (CRTs) and two image intensifier tubes (IITs), which allow the pilot to use an additional sensor in the visible and near infra-red spectrum. Eurocopter Deutschland has received the first demonstrator of this helmet for testing in the Eurocopter Visionics Laboratory. Later, the C-prototype will be integrated into a BK 117 helicopter (AVT Avionik Versuchstrager) for system integration tests. This new helmet has a field of view of 40 degrees , an exit pupil of 15 mm and improved possibilities of adjusting the optical part. Laboratory tests have been carried out to test important parameters such as optical resolution under low light level conditions, field of view, eye relief and exit pupil. The CRT channels have been tested for resolution, distortion, vignetting and homogeneity. The requirements and the properties of the helmet, test procedures and the results of these tests are presented in this article.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Integrated helmet system with image intensifier tubes


    Additional title:

    Integriertes Helmsystem mit Bildverstärkerröhre


    Contributors:

    Published in:

    Displays ; 15 , 2 ; 98-105


    Publication date :

    1994


    Size :

    8 Seiten, 9 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    40° image intensifier tubes in an integrated helmet system

    Schreyer, Herbert / Boehm, Hans-Dieter V. / Svedevall, B. | SPIE | 1993


    IMAGE INTENSIFIER ORTHICON TUBES

    Marschka, F. D. | NTRS | 1962


    Night vision devices and image intensifier tubes

    Koshchavtsev, Nikolay F. | SPIE | 2001


    PERFORMANCE OF IMAGE ORTHICON TYPE INTENSIFIER TUBES

    Moody, J. C. / Parton, J. S. | NTRS | 1962


    Machine vision image analysis capability for image intensifier tubes and systems

    Alsman, Dennis L. / Paul, Carl / Sartor, Mark A. | SPIE | 2003