Month: April 2009

Digital Cameras

Digital photography has been in the clutches of pixel mania for years now – and there is no end in sight. In microscopic applications, however, the camera with the most pixels is not necessarily the best one. The application and optical power of the microscope are the factors determining which camera will ultimately produce the …

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3D Surface Measurement: Characterization of Solar Cells

Solar cell quality control is done at the end of the production chain, testing each individual cell for efficiency. The optical surface metrology system Leica DCM 3D combines confocal and interferometry technology and offers the possibility to check silicon surface texture, roughness, pyramid statistical characterization and metal contact in a few seconds. Unlike the time-consuming scanning electron …

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No Defect Goes Undetected – Inspection of Micro-optic Components

Lithography, fusion or replication The technology for producing micro-optic components depends on the specific application, the required surface quality, desired reliability and final cost of these components. The three most common production techniques are lithography, fusion and replication.The lithographic method was originally developed in microelectronics for the production of structured coatings or surface profiles. With …

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FRET Sensitized Emission Wizard Widefield

Due to the necessary overlap between Donor emission spectrum and Acceptor absorption spectrum each FRET measurement is done by sequential acquisition of three channels: Donor channel: Donor excitation and Donor emission FRET channel: Donor excitation, Acceptor emission Acceptor channel: Acceptor excitation and Acceptor emission Donor and Acceptor channel are used to eliminate crosstalk into the …

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