On Sep 7, 2:24 am, "nightjar" cpb@insert my surname here.me.uk
wrote:
"Matty F" wrote in message

Other problems are that the cars are usually moving at speed, and the
rego number is therefore blurred. The headlights and tail-lights are
also too bright and wash out the picture.
What I need is an invisible LED strobe that runs all night. I can't
find any so I suppose I'll have to make it.

Professional systems use IR floodlights.

A continuous light is not good enough because the number plate is
blurred when the car is moving at speed.
I need a flash, like this taken on my digital camera:
http://i30.tinypic.com/13zmid1.jpg

The lower car is moving at about 60 miles an hour and its number plate
is perfectly readable.

But I want a non-visible flash, i.e. infrared. And it needs to flash
about 10 times per second all night, every night.
Or I need a video camera with a shutter speed of a thousandth of a
second.