An Investigation of Laser Lighting Systems to Assist Aircraft Landing.
Abstract
A model for the visual detectability of narrow light beams was developed and used to evaluate the system performance of two laser lighting system configurations: (1) a laser VASI and (2) a crossed beam glide path indicator. Laboratory experiments confirmed the validity of the model. Using a criterion taken from the Federal Standard for laser safety, the potential hazards of each of the system concepts were evaluated. The following results were obtained for readily available laser power levels: Neither system will work during bright daylight. The laser VASI can be seen at night at the middle marker for visual ranges greater than 5000 ft. The crossed beam system can be seen at night at the middle marker for visual ranges greater than 700 ft. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1979
- Accession Number
- ADA077722
Entities
People
- D. C. Burnham
- J. F. Fantasia
Organizations
- John A. Volpe National Transportation Systems Center