Tucson Image recently introduced a top-of-the-range 1.8-inch large area array CCD camera for low-light shooting such as fluorescence and chemiluminescence with a resolution of 6.1 million pixels. What are the advantages of this large-area CCD chip camera?
What CCD technology is all about is the rapid growth of pixels. Everyone is addicted to the rapid growth of pixels. Yesterday your camera was 5 megapixels. Today I will launch an 8 megapixel camera. Next year, it will be 10 million pixels. I really think that the higher the pixel will be, the more images will be taken. The clearer the more we can benefit from our analysis.
But what does the user really need when the manufacturer is standing in the user's perspective? What the user wants is the best image quality image. This picture can help him find more details, break through the limits of the naked eye, and help him make better articles.
So what are the important factors of image quality? What exactly affects the pictures we took?
In fact, the most important thing in all of this is the size of the CCD. In the field of imaging, the formula should be used:
CCD size "CCD resolution In addition to the size you may have heard many other terms: exposure latitude, signal to noise ratio, lens focal length, sensitivity, I need to tell you that these are parameters related to CCD size.
The photosensitive element of the CCD is a pixel, and each pixel is like a barrel that can be used to store electric charge. The limit of the capacity of the barrel to accommodate the charge indicates the dynamic range of the CCD, that is, the exposure latitude. The size of the CCD directly determines the size of this bucket. The same size CCD, when the volume of the pixel increases, of course, this will cause the number of pixels of the CCD to be relatively reduced, and the ability to accommodate the charge is stronger.
In terms of image noise, excessive image noise is an important cause of detection errors in detection. Too low sensitivity, you need to adjust the larger gain value and longer exposure time when acquiring the same image signal, which is the culprit of noise increase, and the CCD size amplification makes the pixel get more Photon, the sensitivity of the camera is increased, so that the exposure time and gain values ​​are not too large, the image is clearer and the noise is lower.
This is why in the field of faint luminescence such as fluorescence, near-infrared light, and chemiluminescence, resolution has become the second most demanding requirement, and it is more concerned with the reason of large-size CCD chips. In the large-size CCD field, Tucson images have a full range of 2/3-inch, 1.8-inch CCD cameras. Can meet the needs of different users.
Therefore, the size of the CCD is the most important factor in selecting the quality of the image. In terms of use, perhaps this article will give you a little more reference to your camera.
If you are interested in a large CCD camera, please leave us a message.
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