In contrast to usual light, polarized light has a preferred vibration plane of the light waves. Polarized light lets be seen anisotropic objects, whose observable properties are depending on the direction, “in a new light”: crystals, but also animal hairs, feathers, muscles, nerve fibres and vegetable cell walls, which have a preferred direction of its biomolecules, show structures now, which were hidden in the normal bright field image. Images made by polarized light are often characterized by a fantastic coloring. Polarization microscopes are used particularly in mineralogy, geology, biology and medicine.

In order to change the object’s direction in a controlled way, the Science MPO 401 has a round, center-adjustable and full rotatable object stage with degree scale. The illumination and observation unit encloses e. g. the halogen bulb lamp (20W) with dimmer, the field diaphragm (used to achieve the Köhler illumination), the 360° rotatable polarizer (for the production of polarized light), centering implements for the objectives and the analyzer attachment (for the analysis of the polarized light). The analyzer attachment is meant for receiving the 360° rotatable analyzer and optional available sliders (Bertrand lens for conoscopy; quartz wedge, lambda plate and lambda/4 plate used in order to get special colour effects).

The wide field eyepieces (WF10x), which are also optional available, are placed at the trinocular head with an inclination of 30°. They have eye relief adjustment as well as diopter adjustment. The images shown by them are bright, true colored, sharp and rich in details. Apart from the slips and eyepieces, which were mentioned above, the accessories of the MPO 401 contain a dividing eyepiece (WF10x), the Abbe condenser with iris diaphragm, special polarization objectives (4x, 10x, 40x retractable, 100x-oil retractable), filters (blue, ground glass) and immersion oil.


  • 360° rotatable stage with degree scale, adjustable
  • Condenser with iris, polarizer, and flip out auxiliary lens
  • Adjustable eye relief
  • Polarization objective lenses: 4x, 10x, 40x, 100x
  • Trinocular head, 30° inclined
  • Transmitted light, 12 volt/20 watt, adjustable
  • Analyzer incl. quartz wedge, lambda sliders and Amici Bertrand lens

The kit includes:

  • Microscope
  • 2x WF10x eyepieces
  • 4 DIN-objectives (PL4x, PL10x, PL40x, PL100x oil)
  • 360° rotatable mechanical stage
  • Phasen shifter
  • Amici Bertrand lens
  • Polarizer/analyzer combination
  • Dust cover
  • Power cable
Brand Bresser GmbH, Germany
Warranty, years 2
EAN 0611901513515
Package size (LxWxH), cm 56x45x31
Shipping Weight, kg 11.5
Type light/optical, biological
Head trinocular
Head inclination angle 30 °
Magnification, x 40—1000
Magnification, x 40x/100x/400x/1000x
Eyepiece tube diameter, mm 23.2
Eyepieces WF10x (2 pcs.)
Objectives 4x, 10x, 40x, 100x
Revolving nosepiece for 4 objectives
Stage features 360 ° rotatable
Condenser Abbe
Diaphragm iris, field
Focus coarse and fine
Illumination halogen
Brightness adjustment True
Power supply 220–240V
Light source type 20W
User level professionals, experienced users
Optical scheme achromat
Application laboratory/medical, for applied research, school/educational
Illumination location lower
Research method bright field

Returns Policy

We have a 14-day return policy. If you are not satisfied with your purchase, please return it in its original packaging and be sure to put the original product packaging inside the shipping box to avoid any damage..

All items must be in their original condition and unused. The value of your purchase will be refunded. .

Shipping charges will not be refunded.

If the return is due to a defective product, you may be compensated for the return shipping.

Please contact us for more details if you need to make a return..


- From 0 to 2 kg - shipping cost: 12,50 euros.

- From 2.001 kg to 30 kg - shipping cost: 17,00 euros.

- From 30,001 kg - shipping cost: 30,00 euros.

In case of collection at our warehouse or resale points - the shipping is free.

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