Custom Scientific is world-renowned for their custom and off-the-shelf optics and interference filters.
Scientists and engineers on six continents rely on their expertise in optical system instrumentation for astronomy, microscopy, high-performance imaging and spectroscopy.
Optical filters for imaging is a Custom Scientific specialty.
Interference filters range from the vacuum UV, include the visible and encompass the far IR. Bandwidths can be as narrow as one Angstrom.
The transmission spectrum for each filter is shipped with the filter as a graphical printout.
All Custom Scientific astronomical filters have IR blocking "built-in" so IR light does not contaminate today's sensitive CCD detectors.
When you use filters from Custom Scientific, you do not need any additional IR blocker filters.
One exception is in the thickness-matched Clear filters which transmit all wavelengths from the UV to the far IR; they are clear, high-precision, optical windows designed to transmit all wavelengths of light without having to refocus when switching back to a color filter.
FLI Kepler 400 Cooled sCMOS Cameras
The Kepler Series is a giant step forward in throughput, providing faster digitization, higher speed interfaces, and up to 35 channel readout. Sensorscurrently supported include front and back illuminated sCMOS. Future developments will include interline transfer CCDs and EMCCDs.
USB3.0 (3 Gbps)
Optional QSFP (8 Gbps)
Broadband AR Coated Window - (Transmissivity Curves)
Air Cooling or Optional Liquid Cooling
Deep Cooling (up to 45°C below ambient)
Optional Anti-Dew Technology (ADT)
LDR and HDR modes
Small Footprint (4 x 4 x 4.2 in.)
Reaches operating temperatures in 5 minutes!
Support for up to 35 channels
Kepler’s Low Dynamic Range (LDR) mode reads the image once and digitizes it to 12-bits. The user has eight gains to select from in LDR mode. Adjusting the gain affects full well size, dark current growth, and linearity. The High Dynamic Range (HDR) mode reads the pixels twice, digitizing through different amplifiers with different gains. (Unlike CCDs that only read the charge from each pixel once, CMOS sensors can measure the charge multiple times.) The two images are merged to create a 16 bit image with the linearity of a single image, thus allowing an HDR image to show detail in both low-count and high-count areas of an image. Because of the additional read time, the maximum HDR frame rate is half that of the LDR mode. The Kepler camera also features a Low Dark Current (LDC) options for both LDR and HDR. When used, the LDC option minimizes dark current at the expense of reduced full well capacity. For short exposures where dark current growth is not a problem, LDC is not generally used. Standard modes (not LDC) provide the highest full well capacity and widest dynamic range. On the other hand LDC mode is very useful for imaging dim objects that require very long exposures where dark current growth can be significant. The following may be useful in making the decision on which mode is most appropriate: Choose LDR mode for required frame rate greater than 24 FPS (exposures