The development of data generating sensors and computers in a modern fixed wing aircraft is not met by an increase in sensorial performance by the operator to assimilate this data. No new sensor has been developed nor has any drastic increase in data perception been implemented in the human operator since the first manned flight by the Wright brothers. Consequently we have to refine the media and the way in which we present data to the pilot. This document describes a platform for test and evaluation of head mounted technology and some new technologies that can be used for decreasing the pilot's workload. Furthermore, the document describes initial tests done on image quality and design of reflective coatings on visors.
Tristate antiferroelectric and v-shaped liquid crystal materials have recently offered the promise of both the fast switching of ferroelectric materials and the analogue switching of nematic materials at drive voltages compatible with those available from standard CMOS technology thereby making them, at least in principle, suitable for consideration in microdisplay and other photonic applications. AFLC development is in its early stages and the materials are not yet mature enough for widespread commercial use. The object of the ESPRIT funded MINDIS project has been to evaluate AF-LCoS technology. The electro-optical characteristics of a number of experimental materials have been experimentally measured in test cells that emulate the situation of a silicon backplane (e.g., aluminum reflective back electrode etc). Some candidate materials been shown to exhibit high contrast, uniformity and repeatability. A CMOS active matrix backplane with 1000 line resolution has been designed and fabricated. The backplane is capable of operating in digital or analogue modes for FLC and AFLC respectively. Planarization techniques have been applied to the CMOS wafers but planarization has been shown to be more problematic than with previous backplanes. The reasons for this are discussed. The technology has been theoretically evaluated for use in microdisplays for both projection and near-to-eye applications.
The requirements on Helmet Mounted Displays regarding display media has historically been focused on brightness. The CRT has been the only technology available to fulfil that requirements. Today we see a number of new technologies where the brightness is not the major issue. But even when we find a display media that can handle sunshine on white clouds we still have other requirements that need to be managed. This paper will discuss some additional requirements and how new display media manage these requirements.
Sweden is one of the world's smallest countries with a domestic aircraft industry. Since the 1950's Sweden has produced fixed-wing aircraft like the J29 'the flying barrel', J32 Lansen, J35 Draken, JA/AJS 37 Viggen and today the JAS 39 Gripen. The Gripen aircraft is a small lightweight multi-role aircraft adapted to the needs of the Swedish Air Force. The Swedish Defence Material Administration is conducting a study of an integrated helmet system suitable for the specific Swedish conditions. The objective of the study is to define a requirement specification for an integrated helmet system intended for a future version or retrofit of the JAS 39 Gripen aircraft. To meet the technical, tactical and economical requirements the call was for an interdisciplinary approach with participants from the industry, the medical society and the pilot community. This paper will discuss some of these requirements and possible solutions.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.