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LBT-302DIC Differential Interference Metallurgical Microscope

The LBT-302DIC upright metallurgical microscope is suitable for microscopic observation of opaque specimens.

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Metallographic microscope

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lbt@lbt.ltd

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+86-15102211717

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LBT-302DIC Differential Interference Metallurgical Microscope

Description

Product Introduction:

The LBT-302DIC upright metallurgical microscope is designed for microscopic observation of opaque specimens. Featuring a high‑quality infinity‑corrected optical system and a modular functional design, it allows for easy system upgrades to support polarized light and darkfield imaging, among other capabilities. Its compact, stable, and highly rigid body fully addresses the vibration‑isolation requirements of microscopic operations. An ergonomically optimized design ensures convenient, comfortable handling and ample working space. Ideal for examining conductive particles, metallographic structures, and surface morphology, this instrument is a perfect choice for research in metallurgy, mineralogy, and precision engineering.

Product Features:

Observation System:

Hinged Observation Tube: Trinocular, with individual diopter adjustment; the tube is tilted at 30° and features a built-in analyzer, allowing seamless switching between standard and polarized observation, and can be connected to a camera system. Eyepiece: WF10X wide-field plan eyepiece, with a field of view of Φ18 mm, providing a broad, flat viewing area.

Stage:

Equipped with a stage offering a large travel range, dimensions: 250 mm × 230 mm; travel range: 154 mm × 154 mm.

An optional ultra-large stage with a travel range of 280 mm × 270 mm is also available, offering a travel range of 204 mm × 204 mm.

Episcopic illumination system:

It employs a 6 V, 30 W halogen lamp with adjustable brightness, providing clear and vivid microscopic images not only for conventional brightfield observation but also for polarized-light microscopy. Equipped with a built-in polarizer, field diaphragm, and aperture diaphragm, it enables polarized-light observation, allows precise control of the field of view, and facilitates adjustment of field contrast; the center of the field diaphragm is also adjustable. A plug-in filter wheel includes yellow, green, and blue filters as well as frosted glass, offering illumination of varying color temperatures to suit the examination of diverse specimens.

Main body:

The unique T‑shaped mirror‑body frame design enhances instrument stability and maximizes usable workspace. The ultra‑low‑position, front‑mounted coarse‑fine coaxial focusing mechanism helps reduce operator fatigue during extended observation. The coarse adjustment knob features adjustable tension, ensuring a comfortable grip for users of all hand sizes. By controlling the stage’s vertical movement, you can obtain a clear image of the specimen.

Technical Specifications:

Technical Specifications
Eyepiece	Wide-field WF10X (field of view Φ22mm)
Objective lens	LBT-302DIC	LM 5X/0.12 BD Working distance: 12 mm DIC
	(With a DIC objective)	LM 10X/0.25 BD Working distance: 16 mm DIC
		LM 20X/0.40 BD Working distance: 12 mm DIC
		LM 50X Working Distance: 9.15 mm
Eyepiece tube	The trinocular head is tilted at 30°, enabling 100% light transmission for photography.
Epifluorescence illumination system	RH-302DIC	6V 30W halogen lamp, with adjustable brightness 6V 30W
	RH-302BD	12V 50W halogen lamp, with adjustable brightness 12V 50W
	Built-in field diaphragm, aperture diaphragm, color filter changer (yellow, blue, green, frosted glass), and a push‑pull type analyzer and polarizer.

Focusing mechanism	Coarse–fine coaxial focusing, with locking and limit devices, fine‑adjustment scale.
Converter	Five holes (internal ball-bearing internal positioning)
Stage	Mechanical stage, external dimensions: 280 mm × 270 mm, travel range: horizontal (X) 204 mm, vertical (Y) 204 mm.
Stage

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Customer Reviews

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From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

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Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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LBT-302DIC Differential Interference Metallurgical Microscope

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