NCJ Number
95890
Journal
Forensic Science International Volume: 26 Issue: 2 Dated: (October 1984) Pages: 147-157
Date Published
1984
Length
11 pages
Annotation
A study was made of the refractive index (RI) variations in glass objects with particular attention to building and vehicle windscreen glass.
Abstract
Substantial variations were found across the thickness of certain specimens which could be attributed to thermal effects during manufacture. RI variations were largest in thick shop windows or toughened glasses but were also detectable in domestic window panes. The application of laboratory annealing greatly reduced variations in RI with the exception of bottle glass where chemical inhomogeneities may also have been present. (Publisher abstract)