Why has there not been a mention of water droplets on the bubble of the dome. This in my opinion is probably more significant than spiders etc. In most outdoor applications where the dome/bubble type cameras are installed, they are subjected to the weather and we have found that the moisture on the bubble causes significant blind spots and flaring of the image produced. This is further impacted when the moisture then dries and leaves dirt marks on the bubble. During the day these are almost invisible but at night when the IR comes on, then again there is flaring or reflections produced resulting in service calls to remedy the bad picture. The SI who attends then gives the dome bubble a wipe and all is good until night falls and then the image appears foggy due to the fine scratches (from cleaning) reflecting the IR light. This also appears to get worse as camera manufacturers strive to get greater distance from the IR light which in turn causes greater reflections.
The dome cameras with a flat glass window (like IR bullet cameras) separating the lens from the IR LED's with a collar, overcome most of the issues above, except of course the spiderwebs which can stretch across from the LED's and past the front of the lens.
Not sure about that comment. I disclosed my name and my company in the above post. I'm sure people know who Raytec are by now.
Yes, we do see a big growth in integrated IR and yes we do see it improving. It's not hard to see or admit those trends. The minute you see the big brands do integrated IR cameras you know it is mainstream and performance will improve
I was responding the the previous post to show the affects of water droplets.
Our challenge is to maintain performance leadership for the applications where security is critical rather than "getting some shot in the dark". Lighting companies always need to repsond to developments with camera technology. We will need to offer more performance to maintain the value of stand alone lighting.
Ultimately it comes down to the market. For smaller scale applications design and cost are most imprtant, then performance ---- integrated IR cameras.
For higher security sites, prisons, power stations, critical infrastucture performance is everything.