Research polarizing microscope

LMI BM-Prime POL

A high-stability research polarizing microscope with improved strain-free optics, reflected illumination and flexible modular construction for vivid, accurate observation.

Infinity colour-corrected optical system
Strain-free objectives for transmitted and reflected work
360° precision rotating stage and analyzer
Modular Y-frame with high rigidity and stability

View specifications

LMI BM-Prime POL research polarizing microscope

Optical systemInfinity corrected

Objectives4X to 60X

Rotating stage360°

Fine focus0.002 mm

Technical information

BM-Prime POL specifications

Configure transmitted, reflected or combined illumination with precision polarizing components and digital imaging accessories.

Model

BM-Prime POL

Optical system

Infinity colour-corrected optical system.

Viewing heads

30° inclined Siedentopf binocular head; 54–75 mm interpupillary distance and ±5 left diopter adjustment.

30° inclined trinocular head with R:T 100:0 or 50:50 light split.

30°–60° tilting binocular head with 54–75 mm interpupillary distance.

Eyepieces

PL10X/22 mm high eye-point, wide-field plan eyepiece.

PL10X/22 mm reticle version.

PL15X/16 mm high eye-point, wide-field plan eyepiece.

Objectives

Long-working-distance plan strain-free objectives: 5X, 10X, 20X and 50X.

Plan strain-free objectives: 4X, 10X, 20X, 40X and 60X.

Intermediate tube

Removable internal Bertrand lens, analyzer and compensators. Bertrand lens includes rotating switch, centring, focusing and return mechanism.

Analyzer

Pluggable 360° rotating analyzer with 2° increments, 6′ precision and locking device.

Compensators

Gypsum 1λ, Ø18 mm, optical path difference 551 nm.

Mica 1/4λ, Ø18 mm, optical path difference 147.3 nm.

Quartz wedge I–IV.

Nosepiece

Revolving, centre-adjustable quadruple or quintuple nosepiece.

Focus adjustment

Transmitted, reflected, or combined transmitted/reflected frame. Coaxial system with upper limit and tension adjustment, 30 mm coarse range and 0.002 mm fine precision.

Stage

Ø160 mm circular metal stage with graphite anti-corrosion and anti-friction coating; 360° rotation, 1° increments and 6′ precision.

Condenser

N.A. 1.2 swing-out achromatic condenser with 360° rotating polarizer and adjustable 0°, 90°, 180° and 270° scales.

Reflected illumination

100–240 V AC, 50/60 Hz input with 12 V / 50 W halogen lamp housing, preset centre, LBD filter, pluggable polarizer, and adjustable field and aperture diaphragms.

Transmitted illumination

Köhler illumination with 100–240 V AC, 50/60 Hz input, 12 V / 50 W halogen lamp housing, preset centre and iris diaphragm.

Accessories

Yellow, neutral, IF550 and LBD transmitted-light filters.

1X, 2/3 and 1/2 focusing C-mount digital-camera adapters; 3.2X photo eyepiece; PK or MD photo tube; camera relay lens.

Mechanical stage with 30 × 40 mm travel and high-precision micrometer with 0.01 mm increments.

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