Dr. Olaf Medenbach, Diplom-Mineraloge
Tel. : ++49 (0)234 3223519
Fax : ++49 (0)234 3214433
email: olaf.medenbach@rub.de
Tel. : ++49 (0)234 3223519
Fax : ++49 (0)234 3214433
email: olaf.medenbach@rub.de
Special interests:
- optical crystallography
- petrographic microscopy
- spindle stage – universal stage
- instrument design
- antique mineralogical instruments
Optical crystallography
- General remarks
- How to play with polarized light
- The indicatrix and symmetry
- Interference figures, part I: uniaxial crystals
- Interference figures, part II: biaxial crystals
- Interference figures, part III: dispersion and symmetry
- Interference figures, part IV: special features, anomalous and disturbed figures
- Measurement of 2E and 2V
- Measurement of refractive indices
- Mineral Optics (German version only)
Micro-refractometer spindle stage
This highly sophisticated device with an internal refractometer allows precise oriented measurements of optical constants of minute crystals.
>>Info<<
Microdrill
This microdrill was designed for the extraction of small samples from thin and polished sections under the microscope.
>>Info<<