Augmented reality in laser laboratories

Year: 2018

Authors: Quercioli F.

Autors Affiliation: Ist Nazl Ottica, CNR, Largo Enrico Fermi 6, I-50125 Florence, Italy.

Abstract: Laser safety glasses block visibility of the laser light. This is a big nuisance when a clear view of the beam path is required. A headset made up of a smartphone and a viewer can overcome this problem. The user looks at the image of the real world on the cellphone display, captured by its rear camera. An unimpeded and safe sight of the laser beam is then achieved.
If the infrared blocking filter of the smartphone camera is removed, the spectral sensitivity of the CMOS image sensor extends in the near infrared region up to 1100 nm. This substantial improvement widens the usability of the device to many laser systems for industrial and medical applications, which are located in this spectral region.
The paper describes this modification of a phone camera to extend its sensitivity beyond the visible and make a true augmented reality laser viewer. (C) 2017 Elsevier Ltd. All rights reserved.

Journal/Review: OPTICS AND LASER TECHNOLOGY

Volume: 101      Pages from: 25  to: 29

KeyWords: Augmented reality; Cameras; Display devices; Eye protection; Infrared devices; Infrared imaging; Laser beams; Medical applications; mHealth; Safety glass; Smartphones; Spectroscopy; Telephone sets; Thermography (imaging), CMOS image sensor; Laser laboratories; Laser systems; Near infrared region; Rear cameras; Smart-phone cameras; Spectral region; Spectral sensitivity, Laser safety
DOI: 10.1016/j.optlastec.2017.10.033

Citations: 9
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