FusionOptics technology from Leica Microsystems: Whiteboard video

With FusionOptics technology from Leica Microsystems, you can discover details that were previously invisible using stereo microscopy. The observer receives an image with both outstanding richness of detail and depth of field at the same time. The technology allows you to see more of your sample and provides the necessary working distance so you can comfortably manipulate it under the microscope. For more information, go to
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Video transcript:
A typical stereo microscope has an inherent optical limitation that make users choose between a microscope with either a high depth of field or one that maximizes image resolution, forcing the user to make a trade-off.
Stereo microscopes with FusionOptics, exclusively from Leica Microsystems, eliminate this trade off, allowing users to experience a stereo image with both a high depth of field and high resolution. With FusionOptics, the right channel delivers an image with the highest possible resolution, while the left channel provides an image with maximum depth of field. The human brain does the rest. It creates a 3-dimensional image providing the user with an image that has high depth of field and high resolution.
Typical stereo microscope systems are designed to push magnification, resolution, and image quality to the limit permitted by optics. These limits are determined by the correlation between resolution, convergence angle, and working distance. Working beyond these limits presents users with imaging problems like empty magnification, exaggerated depth of field, and shorter working distances. The higher the microscope resolution, the higher the convergence angle between the left and right beam paths. This results in lowering the available working distance to the user potentially compromising sample manipulation.
However, increasing the distance between the optical axes would cause the 3-dimensional image seen by the observer to become distorted. A greater zoom range alone is of little use, since with increasing magnification there is not an increase in optical resolution. The result is what is known as empty magnification. FusionOptics technology found in many Leica Microsystems stereo microscopes, such as the new M205 FCA, breaks these optical limitations by using two beam paths for different tasks. The right channel delivers a high resolution image at the largest possible numerical aperture, while the left channel presents an image with the high depth of field. The two images are merged in the human brain providing the user with an image with outstanding richness of detail and outstanding depth of field at the same time. This allows you to see more of your sample and provides the necessary working distance to comfortably manipulate the sample.
The Leica M205 FCA with FusionOptics provides researchers with the resolution and working distance required by their application.