The Alpha Stereo Binocular Microscope utilizes Vision Engineering's
patented ISIS Exit Pupil Expansion technology to provide up to 10x
greater freedom of head position than conventional binocular eyepiece
systems.
ISIS technology expands the available optical pupil by means of
multilenticular optical surfaces, allowing the operator more than 38mm
of head freedom from the eyepieces.
Alpha eliminates the need for users to precisely align their eye with
the centre of each eyepiece. A small movement of the eye no longer
means losing part of the field of vision, as the pupil easily stays
within the latitude of the twelve-times-wider exit ray bundle.
Users can simply move their eyes to view the full image area, rather
than repositioning their heads or the workpiece to operate within the
constraints of a narrow conventional exit field.
Spectacles or contact lenses can thus be worn in comfort during use.
High-precision optics provides maximum brilliance and high-contrast
images, up to 160x magnification (7-40x standard).
The modular design enables the user to select from a wide variety of
options, including mounting, illumination and camera options.