The Swept Field Confocal is a Prairie invention that brings both high spatial resolution and high temporal resolution together into a single compact confocal scanner The SFC technology overcomes many of the limitations of traditional confocal systems, such as a lack of synchronization between moving pinholes and the CCD camera, crosstalk between pinholes, and a limited selection of objective lenses. Because the SFC has selectable aperture sizes, several objective lens magnifications and numerical apertures can be used for maximum resolution. In addition, users can control the acquisition time and laser exposure with software control, as well as the frequency and duration of each "sweep" of the scanner, allowing for maximum flexibility in scanner control.Highest spatial resolution is obtained by using the pinhole size best suited to a given objective lens. Highest temporal resolution is achieved in either of the slit positions. Rates in excess of 2 kHz may be achieved provided a suitable CCD camera is used.
Features
Download the Swept Field Confocal (SFC)+ Specification file (PDF)
C. elegans embryo expressing B-tubulin GFP
Image courtesy of Koen Verbrugghe and Chris Malone, Laboratory of Molecular Biology, University of Wisconsin-Madison, Madison, WI
Time-lapse recordings of tubulin GFP C. elegans embryos during mitosis.
One image was acquired every second with a 100x Super Fluor lens using the SFC.
Image courtesy of Kevin Eliceiri and Koen Verbrugghe, LOCI, University of Wisconsin-Madison, Madison, WI.