optical instruments

Optical instruments are available from Gaertner for use in specialized fields of work. 


Differential Stress Refractometer LDSR

Provides a non-destructive means of measuring stress in the surface layer of commercial float, plate and sheet glass. The Refractometer can be used on glass which has a refractive index in the range of 1.516 up to 1.566. This index range can be changed by substitution of optional prisms. $6,200.
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Mini-Dioptometer System

Check goggles, welder's lenses, and eye glasses to ANSI standards for refractive power, prismatic power and definition. Easy and convenient to use.
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Light Sectioning Microscope M1108E

Measures coating thickness, scratches nicks, grooves and small steps in the approximate range from 0.0001 to 0.04 inch. A beam of light intersects the surface of the test piece at a 45 degree angle and is divided or "sectioned" by the top and bottom surfaces of the irregularities. Viewing and measurement is done using a filar micrometer with movable cross hairs equipped with electronic digital readout.  M1108E is priced at $9,750.  
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Long Distance Microscope M353

For viewing objects at high magnifications of 20X and 50X and at long working distances of 10" or 16".  At 20X the scope reads to 0.00005" per division on the eyepiece micrometer drum over a range of 0.2". At 50X the scope reads to 0.00002" per division with a  range of  0.080". The scope length is approximately 20". From $4K.


StokesMeter Polarimeter

The StokesMeter is a advanced approach to the measurement of polarized light. This patented device uses no moving parts and no modulators to quickly and accurately determine the complete polarization state, or change in polarization of an unknown input beam.  $15K.
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