Editing Windshield (section)

==Usage==
[[File:Raked windshield 1952 DeSoto.jpg|thumb|Split and raked windshield on a 1952 DeSoto. Note the panes of glass are flat.]]
Windshields protect the vehicle's occupants from wind and flying debris such as dust, insects, and rocks, and provide an aerodynamically formed window towards the front. UV coating [[Windshield sun shades|may be applied]] to screen out harmful ultraviolet radiation. However, this is usually unnecessary since most auto windshields are made from [[Laminated glass|laminated safety glass]].  The majority of UV-B is absorbed by the glass itself, and any remaining UV-B together with most of the UV-A is absorbed by the PVB bonding layer.<ref>{{cite journal|last=Tuchinda|first=Chanisada|author2=Sabong Srivannaboon |author3=Henry W Lim |title=Photoprotection by window glass, automobile glass, and sunglasses|journal=J Am Acad Dermatol|year=2006|volume=54|issue=5|pages=845–854|doi=10.1016/j.jaad.2006.05.014|pmid=16635665|url=http://www.jaad.org/article/S0190-9622%2805%2904624-4/abstract|access-date=23 January 2013}}</ref>

On motorbikes their main function is to shield the rider from wind, though not as completely as in a car, whereas on sports and racing motorcycles the main function is reducing drag when the rider assumes the optimal aerodynamic configuration with their body in unison with the machine and does not shield the rider from wind when sitting upright.