Polarizing optical microscope (POM)
Polarizing optical microscope (POM)
Make: Leica
Model: DM4500P
Year of purchase: 2008
Funded by:
Location: Arkavathi
Contact email: mslab@cens.res.in
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  • Microscopy:
  • Halogen light source (12 V, 100W)
  • Transmission and reflection mode bright field imaging
  • Motorized condenser module
  • Magnifications for imaging:
  • - 5x, 10x, 20x and 50x.
  • - Eye piece gives 10x magnification.
  • - Additionally, 1.6 x (pre-installed in the microscope)
  • - Highest magnification possible: 800x
  • Conoscopy module (for imaging the back focal plane of objective lens) with in-built Bertrand lens
  • Removable polarizer and analyzer in both transmission and reflection geometries.
  • Calibrated rotational sample stage with a resolution: 0.1o with vernier scale
  • Aperture control for incident light, and transmitted / reflected light from the sample
  • Simultaneous visual and imaging option.
  • Polarizer and analyzer can be independently rotated by 360 o
  • Provision to insert filters (2.5 cm dia) in the light path
  • Z-axis positioning with coarse/ fine movement with a vertical resolution of 2 μm.
  • X-Y direction movement: 40 mm x 40 mm with a resolution: 0.1 mm
  • Replaceable light source; for. eg. Hg vapour lamp with compatible dimensions
  • Imaging:
  • - CCD camera (Leica- DFC 420C): 5 MP sensor; Image capture rate: 15 fps max; Peltier cooling.
  • - Image acquisition software: Leica Application Suite (LAS)
  • - Direct control of the microscope with LAS for intensity& aperture control and automatic scaling of captured images.
  • - Image correction during live imaging for eg: hue, gamma and brightness control.
  • - Image formats: tiff, jpeg, png and bitmap.
  • Temperature controller:
  • Hot stage: Mettler Toledo HS82 with Controller HS1
  • Temperature range: Ambient (~ 25 °C) to 375 °C with 0.1 °C resolution
  • Heating/ cooling rate: min: 0.1 °C/ min; max: 20°C/ min
  • Sample chamber size: 48 mm (L) x 20 mm (W) x 2 mm (H)
  • Provision for manual sample positioning (X-Y)
  • Sample viewing aperture: 2mm diameter
  • Hot stage microscopy
  • Transmission and reflection mode imaging
  • Conoscopy
  • Birefringence measurements with tilting compensator (both B and K type)
Modes Duration (hrs)
Birefringence 2
Transmission / reflection / conoscopy 3
Sl. No. - Category Fees ( in Rs/- ) + additional 18% GST
03 - Industry 5000 per sample (3 hrs)
01 - Other Academia 2500 per sample (3 hrs)
02 - Industry partner 3500 per sample (3 hrs)