TRANSMITTED LIGHT

     TRANSMITTED POLARIZED LIGHT is an illumination technique in which polarizing filters are placed above (Analyzer) and below (Polarizer) the specimen.  When these filters are engaged and crossed a black-out effect occurs called Extinction.  Specimens which are birefringent (having more than one index of refraction) will appear bright against the black background.  True Polarizing microscopes, often called petrographic microscopes,  will have a circular rotating stage, a centerable nosepiece, and a Bertrand lens for observation of conascopic images (interference figures).  Polarizing microscopes can provide quantitative information about the specimen.  They are used in geology for mineral thin sections, by textile and forensic sciences for fiber analysis, etc.  Simple polarizing filters can easily be added to ordinary Brightfield microscopes.  Doctors often use this technique for examination of gout crystals.

      The microscope(s) below have been selected from our extensive inventory as examples of the type of instruments we sell.    Martin Microscope is not necessarily an authorized dealer for all products shown.   Price is listed for reference only and is subject to change without notice - please contact us for complete specifications, current price and availability.  The images to the right were actually taken through the microscopes pictured using a consumer digital camera and MM Series Adapter. 

Motic BA300P Trinocular Polarizing Microscope

NEW:  $3,600.00

This one has everything:  

-  360 rotatable polarizer and analyzer 
-  Crosshair corrected Siedentopf head 
-  Silky smooth rotating stage with 
engageable 45 degree detents

Meiji MT9300 Trinocular Polarizing Microscope

NEW:  $5,499.00

Also available in Reflected and Transmitted light...

Meiji MT6130 Trinocular Polarizing Microscope (PLM) for Asbestos ID

NEW:  $6,450.00

Meiji's new MT line of Polarizing microscopes uses the Phase Contrast method of dispersion staining.  While we were somewhat skeptical of this method at first, having been trained using the Central Stop technique, our test results show that Meiji's Phase Contrast Dispersion Staining is actually quite excellent.  COMPARISON PHOTOS...

Jenapol U Transmitted Light Research Polarizing Microscope
USED: $15,000.00

SOLD