or flash bulb
Examples from the Web for flashbulb
The tangle of enormous fake diamonds resting on top of her cleavage sparkles at every flashbulb.And The Escort of The Year Is… Backstage at The Sex Oscars|Scott Bixby|March 24, 2014|DAILY BEAST
It's as though when we first learn of it a flashbulb has imprinted in our recall the details of the event.
You aim, pull the trigger, and the shutter opens as the flashbulb goes off.
It was what he'd seen when the flashbulb of his gun-camera went off.