Advanced Optical Mineralogy System

The SLV-22POL is engineered for birefringence microscopy, utilizing a high-precision Strain-Free Infinity Plan Optical System. The center-adjustable quintuple nosepiece ensures perfect alignment of the optical axis, which is critical for extinction angle measurement and refractive index determination.

The microscope supports both orthoscopic observation (standard view) and conoscopic observation (interference figures) via a switchable Bertrand lens. This allows geologists to easily determine optic signs and 2V angles in anisotropic material.

Polarization & Illumination

Equipped for versatile analysis, the system features a 360° rotatable Analyzer with a vernier scale. It includes a complete set of compensators: 1λ Gypsum plate (First Class Red), 1/4λ Mica plate, and a Quartz Wedge. These tools are essential for analyzing interference colors microscopy and retardation.

The Koehler illumination polarizing system offers 5W LED or 50W Halogen options, providing bright, even light for transmitted polarized light microscopy. The unit uniquely supports power bank supply via a 5V 1A output, enabling field-based rock formation analysis.

Applications in Petrology & Industry

As a premier mineral identification microscope, the SLV-22POL excels in:

• Geological Thin Section Analysis: Detailed study of igneous rock characterization and metamorphic rock microscopy.
• Sedimentary Rock Identification: Analyzing grain shape and cementation.
• Polymer Crystallinity Analysis: Observing spherulites and stress patterns in plastics using crossed polarizers microscope techniques.
• Pharmaceuticals: Inspecting crystal structures and polymorphism.

Specification	Details
Optical System	Strain-free optics, Infinity Corrected
Objectives	Non-Stress Plan (4x, 10x, 20x, 40x, 60x)
Stage	High-Precision 360° Rotatable, Vernier 6'
Intermediate Tube	Built-in Bertrand Lens, Focus Adjustable
Compensators	Gypsum (1λ), Mica (1/4λ), Quartz Wedge

Frequently Asked Questions

1. What is the difference between orthoscopic and conoscopic observation?

Orthoscopic observation views the specimen's image directly. Conoscopic observation, enabled by the SLV-22POL's Bertrand lens, focuses on the back focal plane to view interference figures, which is crucial for optical crystallography.

2. Does this microscope support reflected light?

Yes, the SLV-22POL-RT model supports both transmitted and reflected polarized light microscopy. It includes a specific reflected light illuminator for examining opaque ores and metals.

3. What compensator plates are included?

The standard kit includes a Tint Plate (1λ Gypsum), a Quarter Wave Plate (1/4λ Mica), and a Quartz Wedge. These allow for precise birefringence microscopy and determination of optical sign.

4. Are the objectives strain-free?

Yes, the microscope utilizes non-stress objectives (Strain-Free Infinity Plan). This prevents internal glass stress from affecting the polarization, ensuring accurate mineral optics analysis.

5. Can I measure extinction angles?

Absolutely. The 360° rotatable stage features a high-precision vernier scale (readable to 6'), allowing for exact extinction angle measurement of minerals in rock thin sections.

6. Is it suitable for photography?

Yes, the Seidentopf Trinocular Head has a light split (E100:P0 / E0:P100 or E80:P20) and accepts C-Mount adapters, making it ideal for capturing images of interference colors for reports.

7. What is the maximum magnification?

With the standard 10x eyepieces and the 60x objective, it reaches 600x. Optional 100x objectives are available for 1000x magnification, useful in petrology microscope applications.

8. Can it be used in the field?

Yes. The illumination system supports a 5V 1A output compatible with a power bank, making it a portable geological microscope for on-site rock formation analysis.