Editing Diffraction grating (section)

===Gratings from electronic components===

[[File:Diffraction from mobile phone.jpg|200px|thumb|Diffraction of a spotlight over a mobile phone]]

Some everyday electronic components contain fine and regular patterns, and as a result readily serve as diffraction gratings. For example, [[Charge-coupled device|CCD]] sensors from discarded mobile phones and cameras can be removed from the device. With a laser pointer, diffraction can reveal the spatial structure of the CCD sensors.<ref>{{cite journal|url=http://diog.webs.upv.es/publicaciones/pdfs/2014_AMJPHYS_82_256.pdf |archive-url=https://ghostarchive.org/archive/20221009/http://diog.webs.upv.es/publicaciones/pdfs/2014_AMJPHYS_82_256.pdf |archive-date=2022-10-09 |url-status=live|last1=Barreiro |title=Diffraction by electronic components of everyday use|doi=10.1119/1.4830043|volume=82|issue=3|date=March 2014|journal=American Journal of Physics|pages=257–261|first1=Jesús J.|last2=Pons|first2=Amparo|last3=Barreiro|first3=Juan C.|last4=Castro-Palacio|first4=Juan C.|last5=Monsoriu|first5=Juan A.|bibcode=2014AmJPh..82..257B|hdl=10251/54288 |hdl-access=free}}</ref> This can be done for LCD or LED displays of smart phones as well. Because such displays are usually protected just by transparent casing, experiments can be done without damaging the phones. If accurate measurements are not intended, a spotlight can reveal the diffraction patterns.