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LG1 and LG2 Autocollimators

LG1 and LG2 Autocollimators

Key Features

  • Full reflectivity from small area specimens
  • Setting accuracy of better than 2 seconds of arc
  • Particularly suitable for use with with Logitech PP5 Polishing Jigs
  • Suitable for use with specimens of low reflectivity
  • Optical datum adjustment in X and Y axes through a range of +/- 3 mins. of arc

Description

Autocollimators are highly accurate angle measuring devices used in such areas as parallel specimen production, measurement of small angles, internal and external angular measurement of porro prisms and testing for wedge difference.They are highly versatile measuring instruments and are invaluable tools in today's precision materials technology laboratory.

Logitech offers two standard models of autocollimator, the LG1 and LG2, both of which are suitable for use with a wide range of sample types/holding fixtures, but are particularly suitable for use with the Logitech PP5 series of polishing jigs. The LG1 is suitable for use with PP5A and PP5D models and the LG2 with PP5GT jigs.

Alternative Sample Holders

LG1 and LG2 Autocollimators may be used with alternative specimen holders, either in the same way as with the PP5 or by retaining the optical reference standard as the base plate onto which specimens or specimen holders are placed. Using this arrangement, a wide range of sample holding fixtures may be accommodated by placing them in contact with the preference standard or preferably on top of the three accurate support balls which may be positioned at any point across the surface of the optical reference standard.

Angle Positioning

Although this type of work would normally be done using a calibrated autocollimator, it is possible to generate angles up to +/- 3 minutes of arc by placing an angled slip gauge on top of the optical reference standard and resetting the autocollimator using the standard technique. This will effectively offset the polishing plane by the appropriate amount and enable angled specimens to be prepared.

Product Options

The LG1 and LG2 Automcollimators come as standard with the following:

  • 1 x Autocollimator body (type LG1 or LG2)
  • 1 x Cast iron base and support stand
  • 1 x Power Pack
  • 1 x Spare lamp bulb
  • 1 x Optical reference Stand
  • 1 x Operation manual

Product Specification

Power Supply : 230V, 50-60Hz or 110V, 50/60Hz
Work Deck Area : 864mm x 407mm
Plate Rotation Speed : 0-70rpm
Plate Diameter : 457mm (18")
Max Sample Size : 9 x 76mm (3") ø
Height : 1040mm
Depth : 760mm
Width : 1270mm
Weight : 145Kg

 

For more information on the LG1 and LG2 Autocollimators, call us on +44 (0)1389 875444 or complete our contact form.