| Iceland spar, also called Iceland Crystal, a transparent calcite used for polariscope prisms. |
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| A color camera recorded five isoclinic images coupled with isochromatics from a plane polariscope with five different settings, respectively. |
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| A simple polariscope may be made and the suspect glass object placed between the two sheets of polaroid, the second sheet having been rotated 90-degrees. |
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| The use of the gemmeter in combination with a polariscope is recomended. |
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| The conoscope, is an accessory tool to the polariscope. |
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| The polariscope is used to test quantities of stones either cut or rough. |
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| Combine the gemmeter therefore with a polariscope. |
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| Only two years later, in 1811, the French astronomer Dominique François Jean Arago invented the polariscope, an instrument that can determine whether or not light is polarized. |
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| The model loaded by tightening a nut on the M12 screw through two washers made of Plexiglas was examined in a circular polariscope. |
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| The stresses transmitted to the supporting structures with each appliance were recorded photographically in the field of a circular polariscope. |
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| He also described the examination of diabetic urine with a simple polariscope and with Trommer's test. |
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| Figure 1 shows a photoelastic fringe pattern in a light-field circular polariscope near the edge of a tempered glass panel of 6 mm thickness. |
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| Experienced gemologists could identify nearly every kind of gem with just a refractometer, a polariscope, a set of specific gravity liquids, a spectroscope and a binocular microscope. |
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