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Proceedings Paper

40° image intensifier tubes in an integrated helmet system
Author(s): Herbert Schreyer; Hans-Dieter Viktor Boehm; B. Svedevall
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Paper Abstract

EUROCOPTER has been under contract to the French and German ministries of defence for five 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 micrometers , the German side has proposed using an Integrated Helmet System in the PAH 2. This helmet, manufactured by GEC-Marconi Avionics, incorporates two cathode ray tubes (CRT) and two image intensifier tubes which allow the pilot to use an additional sensor in the visible and near infrared spectrum. The electronic part will be built by Teldix. 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). This new helmet has a field of view of 40 degree(s), and exit pupil of 15 mm and improved possibilities of adjusting the optical part. Laboratory tests have been carried out to test important parameters like optical resolution under low light level conditions, field of view, eye relief or 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 the paper.

Paper Details

Date Published: 1 December 1993
PDF: 12 pages
Proc. SPIE 1988, Display Systems, (1 December 1993); doi: 10.1117/12.164713
Show Author Affiliations
Herbert Schreyer, Eurocopter Deutschland GmbH (Germany)
Hans-Dieter Viktor Boehm, Eurocopter Deutschland GmbH (Germany)
B. Svedevall, Defence Material Administration Testing Directorate (Sweden)


Published in SPIE Proceedings Vol. 1988:
Display Systems
Christopher T. Bartlett; Matthew D. Cowan, Editor(s)

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