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Frequently Asked Questions

Should I consider a 1k x 1k or 2k x 2k CCD camera?

Gatan, Inc: FAQ Imaging
For holography applications, a 2k x 2k CCD camera is preferred. This is because the reconstruction of an electron hologram only uses roughly 1/4 of the image area. For a 1k x 1k camera, this means only 256 x 256 pixels. For 2k x 2k camera, the reconstruction can be as large as 512 x 512 pixels.

What is the difference between 1k x 1k and 2k x 2k CCD cameras?

Gatan, Inc: FAQ Imaging
The 2k x 2k CCD camera has an area more than 6 times that of the 1k x 1k MultiScan camera. The pixel size is 25% larger for the 2k x 2k camera, which results in better image resolution.

What is a CCD camera and how does it work?

Papylon Enterprise - FAQs
A CCD camera uses a small, rectangular piece of silicon rather than a piece of film to receive incoming light. This is a special piece of silicon called a charge-coupled device (CCD). This silicon wafer is a solid-state electronic component which has been micro-manufactured and segmented into an array of individual light-sensitive cells called "photosites." Each photosite is one element of the whole picture that is formed, thus it is called a picture element, or "pixel.

What is the benefit of cooling the CCD camera?

Gatan, Inc: FAQ Imaging
To reduce the dark noise in the CCD. The dark noise refers to the charges in CCD pixels when there is no electron striking the CCD scintillator. The dark noise is generated by a thermal process. Reducing the dark noise can effectively extend the dynamic range of the CCD camera.

Camera) What is the difference between CCD and CMOS?

Audio House specializes in wide variety of audio-visual cons...
The image sensor used by most digital cameras is a charge-coupled device (CCD). Some cameras use complementary metal oxide semiconductor (CMOS) technology instead. Both CCD and CMOS image sensors convert light into electrons. CCD sensors create high-quality, low-noise images. CMOS sensors are generally more susceptible to noise. Because each pixel on a CMOS sensor has several transistors located next to it, the light sensitivity of a CMOS chip is lower.

What is Super HAD CCD camera?

Security Camera Information Things You Should Know Before Pu...
The Super HAD CCD is a version of high performance CCD HAD (Hole-Accumulation Diode) sensor with sharply improved sensitivity by the incorporation of a new semiconductor technology. Efforts for more pixels and smaller size for CCD have resulted in a smaller aperture area of sensor, presenting the problem of lower sensitivity. To improve this, a lens has been provided on the top of the sensor for focusing, which increases the virtual aperture area of the sensor for higher sensitivity.

What is binning (bin) in conjunction with the CCD camera?

Global Rent-a-Scope | CCD Imaging
Binning is a type of configuration that controls the sensitivity and resolution of the camera's sensor. In the case of the ST8XE and STL-11000M for instance, each pixel is 9 microns square. If you were to select bin 1 then the camera would use each separate pixel to take an image. This is the highest resolution mode but the least sensitive. Bin 2 would electronically join 4 of the pixels to form a new apparent pixel of 18 microns square.

What's the difference between 2K and 4K SDRAM?

All of Memory FAQ
The SDRAM has multiple internal banks. The 16M SDRAM has 2 banks, the 64M has 4 banks. When you tell the SDRAM a ROW or COLUMN address you must also specify which BANK you are referring to. The way to do this is by the 'bank address' (BA). Herein lies the problem. For some unknown reasons, suppliers have lumped together the ROW address pins with the BANK address pins and simply refer to them as 'address' pins.

What is the benefit of installing a bottom mount CCD camera before the GIF or ENFINA system?

Gatan, Inc: FAQ Imaging
It is much easier to record unfiltered TEM images with the MS600HP camera. The user does not have to worry about adjusting GIF or ENFINA settings?. Moreover, it is more straightforward for the user to record images with the MS600HP. In other words, what you see on the TEM viewing screen is basically what you get with the CCD camera.

What are CCD and CMOS image sensors? What are the impacts on choosing the camera?

Surveillance camera: how to choose and basic facts
Both CCD (Charge coupled device) or CMOS (Complimentary Metal-Oxide Semiconductor) image sensors are electronic devices that use a variety of technologies to transform an image (light pattern) into an electric image (electronic charge pattern). In the process of reading the value in the image, CCD sensors create high-quality, low-noise images. While CMOS sensors, traditionally, are more susceptible to noise. In the conversion and reading processes, CCDs consume lots of electric power.

Why does CrystalClear "hang" when it tries to communicate with the CCD Camera?

Rigaku Americas -- Downloads -- Software -- CrystalClear
This solution applies if MSCServDetCCD.exe or MSCServDetCCD Simulator.exe is started before the hang occurs.) Open system.configuration, which is found in the CrystalClear directory. Change the value of "DaemonIP" to be the IP address of the computer on which the Rigaku Daemon is running. The data is not removed when you uninstall or reinstall, so you can just recreate the users in CrystalClear, making sure you use the same names as the previous version.

What is CCD?

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CCD is used in professional cameras because of its high resolution quality and its ability to record in low-light situations. CCD is basically a small silicon chip that receives light and turns it into voltage variations which makes up an image. Its usually measured in inches with 1/3" CCD being the standard. They are higher priced but are great for cameras that may require vision in near darkness.

How do I tint your 2K primers?

Kirker - Automotive Finishes
While Kirker markets our PERFECT PRIME and RAPID PRIME 2K urethane primers as “tintable,” it should be noted that our suggestions will yield only a tinted shade, and not a complete shade of the color you are using. Both of these products are available in gray and buff (cream). To tint either color, we recommend using no more than 4 oz. of ULTRA-GLO acrylic urethane paint per each sprayable gallon of primer (or 1 oz. per each quart).

How does the Pixera Camera achieve a one-million-pixel resolution from a 1/3" CCD?

Pixera Corporation: Personal 1.2 Million Pixel Digital Camer...
Pixera camera achieves the one million pixel resolution through its innovative, patented optical image capture mechanism. The Pixera camera captures four frames of the image and overlays them, increasing the resolution of the image to four times the resolution of the CCD chip (250,000 pixels).

What else should I consider?

Organ Transplant, SVCMC; New York NY
You may be worried about having an organ transplant, being in a transplant center or hospital, or being around medical equipment or doctors. You may have concerns that you will not survive the surgery. All are normal concerns. Most people who have undergone an organ transplant say it was a good decision, and that the surgery and lifelong use of medications and lifestyle changes are worth it. The quality of your life can greatly improve. You should have more energy soon after your transplant.

What's a CCD bakeout?

SOHO
See also our list of not-so-frequently asked questions and the questions and answers at Cornell University's "Curious about Astronomy?" website.
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