LENSES FOR NIGHT DRIVING

A LENS PRINCIPLE IS DESCRIBED FOR NIGHT DRIVING THAT DOES NOT ENCOMPASS ANY TINT DIRECTLY OVER THE PUPIL, BUT CAUSES A SHADOW EFFECT TO FALL ACROSS THE PUPIL TO ELIMINATE THE ONCOMING GLARE OF HEADLIGHTS. THIS LENS CONSISTS OF A CALOBAR GREEN SLAB-OFF ON A WHITE LENS. THESE LENSES MUST BE FITTED ON PRESCRIPTION SO THAT THE LINE OF DEMARCATION BETWEEN THE WHITE AND THE GREEN FALLS 3 MM TO THE LEFT SIDE OF THE NIGHT PUPIL. RESEARCH AND TESTS ON THIS LENS ARE REPORTED. THE GENERAL ACCEPTANCE OF THE LENS ON THE INDIVIDUAL FITTED HAS BEEN ENCOURAGING.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrbbulletin/336/336-012.pdf
• Supplemental Notes:
  • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Bryan, Wendell E
• Conference:
  • 41st Annual Meeting of the Highway Research Board
  • Location: Washington DC, United States
  • Date: 1962-1-8 to 1962-1-12
• Publication Date: 1962

Media Info

• Media Type: Digital/other
• Pagination: p 104
• Monograph Title: Night visibility 1962
• Serial:
  • Highway Research Board Bulletin
  • Issue Number: 336
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Drivers; Eye; Glare; Headlamps; Lenses (Geology); Night visibility; Night vision; Reduction (Chemistry); Vision
• Old TRIS Terms: Driver vision; Lenses (Excluding soils); Prescription; Reduction
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00220125
• Record Type: Publication
• Files: TRIS, TRB, ATRI
• Created Date: Aug 5 1994 12:00AM