DISPLAY FIELD ENLARGEMENT THROUGH PERIPHERAL PRESENTATION OF EXTRA-FIELD ERROR,
Abstract
Present optical display systems such as Head-Up subtend relatively small visual fields. Operationally, command, control and error signals are likely to exceed a restricted display field. This produces a condition of extra-field error wich results in a critical loss of visual control information. This report provides a technique of peripherally extending a display field by presenting extra-field error in the form of an arc at the display's edge. Two experiments were conducted which characterized the influence of (a) limiting display conditions (b) peripherally extended display conditions and (c) non-limiting display conditions. The results indicate that the technique of peripheral display extension overcomes the adverse effects of display limiting. Infact, performance with a peripherally extended display was found to be comparable to performance obtained under a non-limiting display condition. In addition, the results indicate performance deteriorates when the ratio of the peripheral to the central display gain is less than one. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1964
- Accession Number
- AD0433733
Entities
People
- C. L. Tipton
- E. A. Cook
Organizations
- United States Naval Research Laboratory