Olympus has introduced the LEXT OLS4000, the latest version of the the company's confocal laser scanning microscope metrology system. The OLS4000 brings a number of additional features and enhanced functionality, including near-vertical slope capabilities, larger optical zoom, and a navigation overview window. New software brings complex processes within reach of a broader range of users, with the use of different user interface sheets for the main tasks – acquisition, analysis and reporting. As well as these internal functional improvements, the whole system has a sleeker look and now only requires a single control unit.
The camera has been designed with a larger and faster MEMS scanning mirror along with dual pinholes, which provide the most advanced confocal laser scanning microscopy in the market. The larger mirror enables the system to provide superior optical quality, and the increased scan speed halves the time it takes to create a 3D image of a sample. The 405nm laser and dual pinholes operate simultaneously to ensure that the system provides high resolution and clarity, as well as enabling steep slope detection up to 85o, ensuring that even complex of surface topologies can be imaged and analysed.
The new line scan function enables the LEXT to perform optical surface roughness measurements to the same international standards as cantilever-based systems. Moreover, the LEXT is leading the way in applying the new 2D surface roughness standards, taking surface analysis to the next level of precision.
The new Z-drive provides movement steps of under 1nm, providing an accuracy of 10nm, which ensures that 3D measurements are extremely precise and repeatable. The new stage also enables much more precise movement and the instrument has a built in vibration cancellation system, ensuring that accuracy is not affected by sample navigation or external vibrations.