Noun
borescope (plural borescopes)
An optical instrument used for seeing inside tight spaces, consisting of a rigid or flexible tube with an optical relay inside so that the view through a lens or window at one end of the tube may be seen from a lens or eyepiece in the opposite end of the tube.
They will continue to have exceptional safety and dependability with their fleet as they rely on the VJ-3 3.9mm x 1.5m mechanical articulating video borescope for turbine engine inspections. Source: Internet
TRAVERSE City, Mich., Mar 31, 2020 (SEND2PRESS NEWSWIRE) — Because a video borescope is a crucial inspection tool for many industries, the COVID-19 virus has not stopped business for ViewTech Borescopes. Source: Internet