The Logitech LG2 autocollimator is a highly accurate angle measuring devices used in the production of parallel specimens. Theautocollimator is ideal for measuring small angles, internal and external angular measurement of porro prisms ａnd testing for wedge difference.
This highly versatile measuring instrument is an invaluable tool in today’s precision materials technology laboratory.
Operating principle:
Light is focused through a dark field gratitude. The beam is then passed through X and Y axes optical datum adjustment plates and is reflected by a mirror, through the objective lens, onto the upper surface of the specimen being examined. From here, the image is reflected onto another mirror, which projects it through a light field gratitude into the eyepiece. This allows the surface of the specimen to be accuray set in relation to the plane of an optical reference surface and enables accurate measurement of any angular deviation to be made. Specimen holding facilities make it possible to set or adjust accuray the alignment of the upper surface of the specimen to produce either parallel surfaces or a desired angle of specimen orientation.
The Logitech LG2, is suitable for use with a wide range of sample types/holding fixtures, but is particularly suitable for use with the Logitech PP5GT polishing jig.
• Full reflectivity from small area specimens
• Ideal for use with Logitech PP5 polishing jigs
• Suitable for use with low reflectivity specimens
