The OPTIKA B-150P-BRPL is an upright binocular polarizing microscope for transmitted-light observation in brightfield and simple polarized light. Its Siedentopf binocular head, inclined at 30° and rotatable through 360°, provides comfortable use for laboratory sessions, teaching environments and routine sample observation.

This model is especially suitable for schools, universities, training laboratories and users who need an accessible introduction to polarized-light microscopy. In geology and mineralogy, it is useful for basic observation of rock sections, minerals and other birefringent materials mounted on glass slides.

The optical configuration includes N-PLAN 4x, 10x and 40x objectives, providing standard magnifications from 40x to 400x. The 120 mm rotatable round stage helps orient the sample during observation, which is particularly useful for simple polarization work.

The 1 W X-LED1 transmitted illumination system includes manual brightness control and provides efficient, stable lighting. The rechargeable Li-ion battery allows cordless operation for up to 15 hours, making the microscope practical for classrooms, shared laboratories and work areas where cable-free use is preferred.

Technical specifications:

• Brand: OPTIKA
• Model: B-150P-BRPL
• Type: upright binocular polarizing microscope
• Observation method: brightfield and simple polarized light
• Head: binocular Siedentopf
• Head inclination: 30°
• 360° rotating head: yes
• Interpupillary distance: 48-75 mm
• Dioptric adjustment: on left tube
• Eyepieces: 10x
• Field number: 18 mm
• High eyepoint for glass wearers: yes
• Nosepiece: quadruple, bi-directional, rotation on ball bearings
• Objective thread: RMS
• Optical system: 160
• Objectives: N-PLAN with anti-fungus treatment
• Objectives included: 4x/0.10, W.D. 15.2 mm; 10x/0.25, W.D. 5.5 mm; 40x/0.65, W.D. 0.45 mm
• Standard magnifications: 40x-400x
• Parfocal distance: 45 mm
• Stage: round, 360° rotating
• Stage diameter: 120 mm
• Stage material: anti-scratch painting
• Specimen clips: yes
• Slide number: 1
• Condenser: fixed, pre-centered
• Condenser numerical aperture: 1.25
• Diaphragm: iris
• Focusing system: coaxial coarse and fine
• Coarse total travel: 16 mm
• Fine total travel per rotation: 0.4 mm
• Fine graduations: 100
• Fine resolution: 4 µm
• Upper stop to prevent contact with specimen: yes
• Adjustable tension: yes
• Transmitted illumination: X-LED / X-LED1
• Light source power: 1 W
• Brightness control: manual
• Illumination lifetime: > 65,000 hours
• Colour temperature: 6,300 K
• Maximum required power: 1.5 W
• Power supply: external
• Microscope connector: 2.1 mm jack
• Power plug type: multi-plug EU, UK, US
• Input voltage: 100/240 Vac, 50/60 Hz
• Output voltage: 5 Vdc 2.5 A
• LED indicator: yes
• Rechargeable batteries: yes
• Battery type: Li-ion battery pack
• Battery working time: 15 hours
• Battery charging time: 6 hours
• Polarizing filters: rotating swing-out polarizer and fixed sliding-out analyzer
• Accessories included: dust cover, tension adjustment tool and downloadable digital user manual
• Body material: aluminum die-cast
• Dimensions: 350 x 170 x 320 mm
• Weight: 4 kg