Security Camera Sensor
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What Is A Cmos Security Camera?
In the field of security and security camera systems there are two competing types of camera - when it comes to digital camera types - in use today; CCD and CMOS.
Both have their pros and cons and both are more than adequate as digital cameras for use with many security applications.
Understanding what a CMOS (complementary metal oxide semiconductor) security is can help one to make an informed decision when it comes to deciding just what camera system to go for when it's time to pick one.
At their heart, both CCD ("charge coupled device") and CMOS semiconductors are what digital camera experts refer to as "image sensors."
They're able to take light (which is sometimes known as "optical brightness capture") and convert it into electrical signals which are then converted into binary - or digital - form and then rendered into hyper-accurate images.
A CMOS image sensor is lined up behind the lens or series of lenses in a security camera, and this is whether or not the camera makes use of a CCD or a CMOS semiconductor.
Keep in mind that the basic technology for the semiconductor is several decades old and that the material for the semiconductor is generally still silicon, which is an outstanding media for imprinting millions (and even billions or even trillions) of microscopic transistors on its surface.
It is these transistors that help to make the semiconductor a wonder of technology, by the way.
And CCDs or CMOS image sensors use slightly different processes for taking the light that they're presented with and turning that light back into the image one sees through the lens.
Some experts say that it's a case of "six of one, half a dozen of the other," but there are definable differences that, if known, can help a person decide between the two types of cameras.
In terms of pros and cons, it's helpful to know that a CMOS camera has an image sensor that uses far less power than does a CCD.
This can mean less power consumption on the part of the camera which can mean it'll last longer on emergency batter power should something happen to interrupt the camera's standard electrical supply.
For some security-conscious folks who want a camera that can make it through such a scenario, a CMOS-equipped camera may give them a bit more comfort.
On the other hand, it can take longer for a CMOS sensor to take the light it's given (and it's also not as light sensitive, meaning it isn't as good at "seeing" everything, especially in low-light conditions) and move it across the surface of the sensor (it employs all those transistors) and then convert the light to a digital (or binary) form.
Every security camera (or any digital camera, for that matter) will list its image sensor type right on the side or on the box. Check on that prior to buying.
Check with the security camera vendor or camera, also, to determine the kind of camera it intends to install in the system.
Both have their benefits and both have a few downsides.
Power consumption is higher in a CCD (much higher, in some cases) but picture quality will be outstanding.
CMOS cameras can last longer on battery power and are more efficient, though they take longer to process a picture.
Decide what's most important and then go for it.
Get the best CMOS security cameras online. Visit Chinavasion.com or paste this link into your browser: http://www.chinavasion.com/index.php/cName/surveillance-equipment/
About the Author
Rose Li is the PR Manager for Chinavasion, China's premier dropshipper for wholesale consumer electronics