![](https://downloads.microscope.healthcare.nikon.com/production/imager/mastheads/2210/LV100ND-POL-DS-Masthead_f076438097b2d2d85c6c3ef04742411e.jpg)
Microscopes for dispersion staining allow for qualitative analysis and identification of asbestos
Polarized light microscopes can measure the properties of asbestos, such as refractive indices, birefringence, retardation, extinction angles, pleochroism and signs of elongation, helping in the identification of asbestos. LV100ND POL/DS is a high-performance, polarized light microscope with accessories that enable dispersion staining observation at up to 400x magnification.
![](https://downloads.microscope.healthcare.nikon.com/production/imager/productphotos/2165/lv100nd-pol-ds_3cac538b21a254209ea06cf584646f29.jpg 1x, https://downloads.microscope.healthcare.nikon.com/production/imager/productphotos/2165/lv100nd-pol-ds_7fc2443c96341e0fab73dbc596e4b275.jpg 2x)
Key Features
Highlights
- The LV100ND POL/DS employs optics with high extinction factors, facilitating detection and observation of high-precision optical properties.
- The LV100ND POL/DS enables analysis of birefringence, extinction angles, signs of elongation, refractive indices, birefringence magnitudes, and pleochroism of asbestos.
- Changing the objectives and PH modules allows observation of asbestos dispersion colors corresponding to the refractive indices of the immersion liquid. The LV100ND POL/DS enables both quantitative analysis and dispersion staining observation of asbestos.
- A fully rotatable circular graduated stage offers trouble-free sample rotation and accurate analysis during polarization observation.
![](https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2234/LV100ND-POL-Birefringence1_eab673dc52b0446b2b598a80abc7b050.jpg 1x, https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2234/LV100ND-POL-Birefringence1_9b9989dbe1d056a5c35107959161a1c5.jpg 2x)
The cross Nicols, diagonal position
![](https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2235/LV100ND-POL-Birefringence2_eab673dc52b0446b2b598a80abc7b050.jpg 1x, https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2235/LV100ND-POL-Birefringence2_9b9989dbe1d056a5c35107959161a1c5.jpg 2x)
The cross Nicols, extinction position
![](https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2238/LV100ND-POL-Extinction-angle1_eab673dc52b0446b2b598a80abc7b050.jpg 1x, https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2238/LV100ND-POL-Extinction-angle1_9b9989dbe1d056a5c35107959161a1c5.jpg 2x)
The parallel Nicols, cleavage face aligned with the crosshair
![](https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2237/LV100ND-POL-Extinction-angle2_eab673dc52b0446b2b598a80abc7b050.jpg 1x, https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2237/LV100ND-POL-Extinction-angle2_9b9989dbe1d056a5c35107959161a1c5.jpg 2x)
The cross Nicols, extinction angle measured
![](https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2241/LV100ND-POL-DS-elongation1_eab673dc52b0446b2b598a80abc7b050.jpg 1x, https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2241/LV100ND-POL-DS-elongation1_9b9989dbe1d056a5c35107959161a1c5.jpg 2x)
Amosite Positive: Subtractive diagonal position
![](https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2240/LV100ND-POL-DS-elongation2_eab673dc52b0446b2b598a80abc7b050.jpg 1x, https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2240/LV100ND-POL-DS-elongation2_9b9989dbe1d056a5c35107959161a1c5.jpg 2x)
Crocidolite Negative: Additive diagonal position
![](https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2247/LV100ND-POL-DS-refractive-index1_eab673dc52b0446b2b598a80abc7b050.jpg 1x, https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2247/LV100ND-POL-DS-refractive-index1_9b9989dbe1d056a5c35107959161a1c5.jpg 2x)
The upper part of a specimen is focused
![](https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2246/LV100ND-POL-DS-refractive-index2_eab673dc52b0446b2b598a80abc7b050.jpg 1x, https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2246/LV100ND-POL-DS-refractive-index2_9b9989dbe1d056a5c35107959161a1c5.jpg 2x)
The lower part of a specimen is focused
![](https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2251/LV100ND-POL-DS-birefringence-magnitude1_5aee3c2798fab066547b202a83b201a8.jpg 1x, https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2251/LV100ND-POL-DS-birefringence-magnitude1_b378458833c32c493443ede68db69be0.jpg 2x)
Diagonal position
![](https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2250/LV100ND-POL-DS-birefringence-magnitude2_5aee3c2798fab066547b202a83b201a8.jpg 1x, https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2250/LV100ND-POL-DS-birefringence-magnitude2_b378458833c32c493443ede68db69be0.jpg 2x)
Subtractive diagonal position confirmed (a test plate is inserted)
![](https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2249/LV100ND-POL-DS-birefringence-magnitude3_5aee3c2798fab066547b202a83b201a8.jpg 1x, https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2249/LV100ND-POL-DS-birefringence-magnitude3_b378458833c32c493443ede68db69be0.jpg 2x)
Analyzer rotation angle measured (Senarmont compensator is inserted)
![](https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2255/LV100ND-POL-DS-Pleochroism1_eab673dc52b0446b2b598a80abc7b050.jpg 1x, https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2255/LV100ND-POL-DS-Pleochroism1_9b9989dbe1d056a5c35107959161a1c5.jpg 2x)
Parallel to vibration direction of polarizer
![](https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2256/LV100ND-POL-DS-Pleochroism2_eab673dc52b0446b2b598a80abc7b050.jpg 1x, https://downloads.microscope.healthcare.nikon.com/production/imager/keyfeatures/LV100ND-POL-DS/2256/LV100ND-POL-DS-Pleochroism2_9b9989dbe1d056a5c35107959161a1c5.jpg 2x)
Orthogonal to vibration direction of polarizer