NASA NTRS · 19660000096
Inexpensive infrared source improvised from flashlight
Abstract
Inexpensive hand-held source of infrared energy is provided by a flashlight bulb coated with a paint which filters out the visible light emitted by the bulb and transmits only infrared radiation. This device can be used for checking infrared sensors and for experimental purposes.
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1966-03-01. Inexpensive infrared source improvised from flashlight. https://ntrs.nasa.gov/citations/19660000096
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