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Optical system
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Color corrected infinity optical system
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Viewing head
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Gemel type binocular head，30°inclined, 360° rotatable, inter-pupillary adjustment range:54mm to 75mm, diopter adjustment of range(±5mm)
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| Gemel type trinocular head, fixed light split ratio, binocular:trinocular =80%:20% |
| Gemel type digital viewing head |
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Eyepiece
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High eyepoint wide field plan eyepiece PL10X/18、High eyepoint wide field plan eyepiece with reticle PL10X/18r
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| High eyepoint wide field plan eyepiece PL10X/20 |
| High eyepoint wide field plan eyepiece with gridding PL10X/18G |
| High eyepoint wide field eyepiece PL15X/13 |
| High eyepoint wide field eyepiece PL20X/10 |
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Objective
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Plan destressing objective 4X,10X,20X,40XS,60XS
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| Achromatic objective 4X,10X,20X, 40XS,60XS |
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Nosepiece
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Reversed quadruple nosepiece
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Focus
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Coaxial focus system with tension adjustable,coarse:28mm per rotation,
Minimum reading 0.002mm
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Stage:
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Dia.160mm circular stage, 360°rotatable;1° increments ，a does value of vemier 6'; With locking devices
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| Special metal composing, particularly craftwork,wear-resistant and resisting corrode, with micrometer:0.01mm increments. |
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Illuminator
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Koehler illumination: wide-range voltage 90-240V, 6V/20W halogen lamp precentered and with continuous intensity control
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| Koehler illumination: wide-range voltage 90-240V, 3W single LED bulb, precentered and with continuous intensity control |
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Condenser
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Koehler illuminator , destressing Abbe condenser N.A.1.25， adjustable center
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Intermediate tube
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Built-in analyser, 90° rotary and can shift out the optical way; Bertrand lens
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Polarizer
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360°rotatable，0，90，180，270 four type graduations
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Analyser
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360°rotatable，2° increments ，a does value of vemier 6'
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Compensator
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Gyps1λ (￠18mm, optical path difference 551nm)
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| Mica1/4λ(￠18mm, optical path difference 147.3nm) |
| Quartz Wedge(12X28mm, Ⅰ-Ⅳ) |
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Accessories
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Stage mobile ruler 30*40mm
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| Filters(yellow/blue/green/neutral) |
| Photo tube(with PK mount), 3.2X photo eyepiece |
| 0.35X/0.5X C-mount adapter |
| Dark field sliders(Used for 4X-40X objective under Koehler illumination) |