Petrographic Microscope

Description

Stand : Large rectangular heavy stable base having electrical fittings concealed inside. Body : Trinocular heads with 45° inclined tubes. Interpupillary distance and dioptric adjustments. Nosepiece: Precise ball-bearing quadruple revolving nosepieces having center able objectives mount and ribbed grip for easy rotation. Stage : Compact ball-bearing rotating stage, 140mm diameter, graduated with vernier, lock and stage specimen clips. Focusing : Co-axial focusing is provided with coarse Tension adjustment ring and graduated slow motion knobs. Adjustable safety lock is attached to prevent the breakage of specimen slides. Illuminator: Koehler’s illuminator with pre-centered 20W tungsten halogen source and integral electric transformer with intensity control is concealed inside the base. Input voltage 220 Volts. Incident Illumination: Reflected light incident illuminator consists of a Polarizing unit, Slot for filter holders and 20W Intensity Control Transformer in concealed inside the base of can be provided extremely. Intermediate Tube: Built-in focusable Bertrand lens with centre adjustable. Built-in analyzer removable from optical path. Analyzer can be rotated 90° with a vernier reading to 6’. Compensator 1?, 1/4? and Quartz Wedge can be inserted in the tube as per requirement. Compensator : Gyps 1 ? (1st order red compensating plate, 560 nanometers), Mica 1/4 ? (145 nanometers) and Quartz Wedge (I-IV order) Objectives : Stress-less flat Achromatic DIN Objectives PF4x/0.10, PF10x/0.25 and PF40x/0.65 SL. Eyepiece: HKW 10x (Paired) and WF 15x Cross. Polarizer: Fully rotatable Polarizer on a strain free N.A. 1.25 abbe condenser with iris-diaphragm. Packed in thermocole box with Vinyl Cover, Duster, Cleaning Brush, Filter, Spare Bulb, Fuse and Operating Instruction Manual.