Senin, 24 Maret 2014

Will this damage a night vision security camera?




WutUget


Will pointing a LED light, or a laser pen, at a LED night vision motion detection security camera... ruin, damage, or burn out the LED security camera?
Or will it burn out the LED's on the security camera?



Answer
Why do you want to do such a thing?

Security cameras are NOT LED cameras, there are NO LCD sensors out in the market ... not yet anyway. They only use the LED's lamps to fill the area of interest with enough light to record what goes on there. They all use some kind of sensor like a CCD or CMOS

High power leaser such as found in "laser shows" have been know to damage sensors on dSLR cameras, most notably Canon dSLR's. I don't know if this is because Nikon users are more informed shooters and would never let a laser strike their cameras sensors or if the spatial anti-aliasing filter (hot mirror) protects the Nikon sensors better.

I guess if this is a worry, you can place a special filter over the lens that will reject all of the frequencies used by handheld lasers.

Iâm looking for a good security/spy camera that can record onto a hard drive, and that has night vision, etc.?




Wuzi


Iâm going on holiday in a few days and I thought it would be a good idea to get one of those cameras, since thereâs been a lot of housebreaking recently.

Hereâs what I need:

- It should be able to be outdoor, eventually under the rain

- It should have a good night vision, to recognize number plates

- It should be all digital, and be able to record onto a hard drive as long as 2 weeks or more

- It would be cool if I would be able to check whatâs going on via WLAN for example. I saw some cameras that have WLAN, and you can see whatâs happening via your iPhone or your browser. The thing is, those I found needed Internet Explorer or stuff like that⦠I need something Apple compatible.


Also, I was thinking of getting more than just one. How can I record them all onto a hard drive? Do I need to create different folders for each camera on the hard drive, and then select this folder as the recording destination for each of them?


Iâm pretty new to this and itâs all a bit complicated for me⦠also I find thereâs way too much choice.


And the price of course: The cheaper the better, but I donât want something that wonât work anymore after a week of course!


Thanks very much!



Answer
You need cameras to be "weatherproof" so that they can be placed outside.
You want to get cameras with "Infrared" so that it has night vision and you may want to get them with "600-700TV lines" so that it recognizes faces and license plates.
You need a DVR with a hard drive installed. You wont know what hard drive size you need until you decide how many cameras you want on the system and if you want it to be recording 24 hours or set it on motion detection. That will determine how much space you need to record for at least 2 weeks before it overwrites itself.
Most systems now a days can be view remotely via pc, mac, and smart phone.
I recommend http://cctvdirectbuy.com they are really great and have low prices but the work with you to find the best system for you.




Powered by Yahoo! Answers

Tidak ada komentar:

Posting Komentar