Scientific Imaging Knowledge

sCMOS technology

The sCMOS sensorConventional imaging technologies, such as charge-coupled devices (CCDs), tend to be good at one thing but not another. With CCDs, for example, it is possible to have great signal-to-noise ratios, but because the frames have to be read out one at a time, the technique cannot operate at high speed. Conversely, when CCDs are pushed to...

Interpolative Blemish Corrections on sCMOS - How to switch ON/OFF

Interpolative Blemish Corrections on sCMOS - How to switch ON/OFFClassification, Identification and Filtering of Blemish PixelsAndor’s Neo and Zyla cameras are equipped with considerable FPGA processing power which is utilized to filter the small percentage of blemishes from the image sensor. This filter identifies and compensates for three types o...

Etaloning

Optical Etaloning in Charge Coupled DevicesIn the field of modern scientific-grade CCD detectors the arrival of back-illuminated CCDs and Electron-Multiplying EMCCDs has offered key enabling technology for the growing range of applications where the photon signal available is extremely low. Such applications include low-light cell microscopy and fa...

Windows for CCD devices

Camera WindowsThe transmission efficiency of the vacuum window of CCD and EMCCD cameras is a key consideration when optimizing the performance of the system for a particular spectral region of interest. Generally one wants to maximise the transmission possible in the desired wavelength region. Careful design and use of anti-reflection (AR) coatings...