Description

The IM7100H  from Meiji Techno is engineered for professionals who demand uncompromising optical performance, durability, and versatility in metallurgical inspection. Built on a stable cast-aluminum triangular frame, these inverted systems deliver sharp, high-resolution imaging and exceptional vibration resistance—making them ideal for industrial, research, and quality-control environments.

Powered by Meiji’s Infinity Corrected Optical System (F-200mm) and equipped with high-performance Planachromat EPI objectives (5X, 10X, 20X, 50X), the IM7000 Series produces crisp, distortion-free images across all magnifications. The system’s Brightfield/Darkfield illumination, provided by an integrated 30W Vertical Koehler Halogen lamp (with optional LED), delivers brilliant, uniform lighting suitable for microstructure evaluation, defect detection, and routine metallographic inspection.

A spacious 245mm × 180mm mechanical stage with stainless steel stage clips ensures smooth travel and reliable support for mounted samples and polished specimens. Ergonomic controls—including coaxial coarse and fine focusing, friction adjustment, and optional mechanical dropdown—enhance comfort and precision during long inspection sessions.

The IM7000 Series supports a wide range of accessories such as digital cameras, C-mount adapters, polarizing filters (via a quick-insert polarizer slider), and micrometers, making it a flexible platform for laboratory and industrial workflows. The built-in 23.2mm trinocular photo port allows seamless integration with imaging systems for documentation, analysis, and digital archiving.

What an IM7100H Inverted Metallurgical Brightfield Microscope Is Used For

An Inverted Metallurgical Brightfield Microscope is designed to inspect solid, opaque materials—especially metals—using reflected light that illuminates the sample from below. Because the objectives sit underneath the stage, this type of microscope allows users to examine large, heavy, or uncut samples that would be difficult to place on an upright system.

Primary Use and Purpose

This microscope is used to analyze the surface structure and quality of metals and industrial materials. Brightfield illumination provides a clear, evenly lit image of polished surfaces, making it ideal for routine inspection and documentation.

It helps users evaluate characteristics such as:

• Grain structure and microstructure

• Surface defects (scratches, cracks, porosity)

• Coatings and plating layers

• Heat-affected zones from welding or machining

• Inclusions, contaminants, or processing issues

Industry and Laboratory Applications

Inverted metallurgical microscopes are widely used in environments where material inspection is essential. These include metallography labs, industrial quality control, manufacturing, automotive, aerospace, toolmaking, and failure-analysis facilities.

Their inverted design makes them especially suitable for examining mounted specimens, large parts, and samples that cannot be sectioned.

The IM7000 Series features include:

• All models come standard with ∞ Infinity Corrected Optical objectives (F=200)
• Viewing heads are supplied with a Siedentopf type binocular head, inclined at 30° or a trinocular Siedentopf head inclined at 45°. Interpupillary distance is adjustable from 53mm to 75mm. A graduated diopter adjustment is provided as a standard feature on the left eyetube of all units.
• Eyepieces are SWH10X, widefield, high eye point eyepieces, F.N. 22, with a 25mm reticle mount, SWH15X, SWH20X and SWH10X-F focusing eyepieces are available as an option. Anti-reflection coated, manufactured with a large diameter lens with more optical elements and high eyepoint to reduce eye fatigue and accommodate eyeglass wearers, and come equipped with a fold-down rubber eye-guards
• Infinity Corrected Planachromat 5X, 10X, 20X and 50X objectives are standard in all units. Objectives are made with extra-low-dispersion glass ans utilize new advanced multilayer ani-reflection coatings. The advanced technology used in designing and creating objectives result in an objective with a higher resolving power, higher image contrast, wider field of view, improved flatness of field, and a sharp image with a minimum of flare and ghosting. The objectives are color corrected for chromatic aberration in the red and blue regions of the spectrum and offer and exceptional flat field of view.
• Quintuple Nosepiece , side facing, with positive precision detent, click stops
• Plain stage 180mm (X) x 245mm (Y) dimensions
• Optional Mechanical Stage with drop down post available, 112mm (X) x 72mm (Y) movement.
• Focus travel, 9mm total, 1.0mm up and 8mm down, Rotation of fine focus: 0.2mm per revolution.
• Vertical Koehler illuminator equipped with 6V 30W Halogen bulb, Variable rheostat and automatic voltage sensing power supply are incorporated as standard.
• Cast aluminum alloy body for rigidity and exceptional stability

  • IM7100: Binocular Inverted Brightfield Metallurgical Compound microscope with an integrated 6V/30W vertical Koehler Halogen illuminator with variable intensity control and automatic voltage sensing power supply provides excellent specimen illumination and contrast.  Quintuple nosepiece and auto voltage sensing power supply.  Infinity Corrected Planachromat 5X, 10X, 20X and 50X objectives are standard in all units.  All of our IM7000 Series controls are ergonomically positioned to provide comfort and extended ease of use for the operator. Meiji’s IM Series is well suited for examination of mounted metallurgical specimens or for routine quality inspections such as, microstructure analysis, various materials testing, QA and QC examination and photomicrography.

Includes:

VIEWING HEADS

The binocular model, the IM7100, incorporates the MA814 Siedentopf-type binocular head while the trinocular model, the IM7200, has the MA816/10 Siedentopf-type trinocular head. The MA816/10 uses an 80/20 beamsplitter that can be engaged for photomicroscopy. (100% to eyetubes or 80% to phototube and 20% to the eyetube.) Each microscope head has the eyetubes inclined at 30 degrees with the left eyetube having graduated diopter settings. The interpupillary distance on the viewing heads is adjustable between 53mm – 75mm. An optional ergonomic binocular head is also available.

   • MA814/05: Siedentopf type binocular head – inclined at 30°, Interpupillary adjustment 53mm to 75mm graduated diopter  on left eyetube (30mm I.D. eyetubes) with depolarizer

EYEPIECES

10X Super Widefield High Eyepoint eyepieces are standard, and 15X and 20X eyepieces are also available as an option. A Super Widefield High Eyepoint 10X focusable eyepiece that accepts standard 25mm reticules is also available.

   • MA817 (x 2): SWH 10X Widefield high eyepoint eyepiece, Field No. 22, (accepts 25mm diameter reticle)
• MA906 (x 2): Rubber Eyeguards, foldable (paired)

OBJECTIVES

Meiji Techno offers their newly designed E.Planachromat Infinity Corrected objectives for brightfield observation modes. Infinity tube lens: F = 200mm. The smooth-operating, ball bearing mounted, quintuple nosepiece provides effortless objective changes.

   • MA870: Planachromat E5X, ∞ objective N.A. 0.10, W.D. 20.0mm, F.L. 40.0, ∞ Infinity Corrected
• MA871: Planachromat E10X, ∞ objective N.A. 0.25,W.D. 7.48mm, F.L. 20.0, ∞ Infinity Corrected
• MA872: Planachromat E20X, ∞ objective N.A. 0.40, W.D. 5.20mm, F.L. 10.0, ∞ Infinity Corrected
• MA873: Planachromat E50X, ∞ objective N.A. 0.75, W.D. 0.38mm, F.L. 4.0, ∞ Infinity Corrected

STAGE

The standard fixed plain stage measures 180mm(x) by 245mm(y). The optional attachable mechanical stage measures 112mm(x) x 71mm(y). The mechanical stage features ergonomically positioned right-handed coaxial drop down controls.

   • Stage: 180mm (X) x 245mm (Y) Plain stage (Factory installed)
• Focus Mechanism: Ergonomically low positioned, coaxial coarse and fine focus knobs with adjustable tension
• Front Photo Port: Front mounted camera port suitable for CCD, 35mm SLR, or digital cameras with optional camera adapters to facilitate a wide range of camera and video equipment

ILLUMINATION

A powerful Koehler method vertical illuminator with 6 volt 30 watt halogen bulb in an adjustable centering socket provides enhanced image quality of observations and adjustable brightness control.

PHOTOMICROGRAPHY

Meiji Techno offers a broad range of digital video cameras which offers excellent sensitivity, high resolution and a wide dynamic range for the most demanding brightfield and darkfield microscopy applications including clinical pathology and cytology, life sciences and geology. Some models has included software, that can preview and capture still shots and live videos to a PC or Mac with USB port or HDMI connectivity.

  • MA475/05: LB100 Blue clear 19.5mm diameter filter in metal mount, fits 25mm filter slot
• MA476: G533 Green clear 19.5mm diameter filter in metal mount, fits 25mm filter slot
• MA774: ND50 Neutral density filter, 19.5mm diameter filter in metal mount, fits 25mm filter slot
• MA497: Polarizing filter, 19.5mm diameter filter in metal mount, fits 25mm filter slot
• MA809/10: Removable AC Electric cord with plug for 115V models
• MA326: Halogen bulb, 6V 30W (Factory installed)
• MA327: Fuse 3A, Replacement (Factory installed)
• MA714: Dust cover
• Manual: IM7000 Meiji Techno Instruction Manual

IM7100H METALLURGICAL SERIES BROCHURE

(CLICK TO DOWNLOAD FULL BROCHURE)

Product Information:
• Manufactured: 100% MADE IN JAPAN
• Warranty: LIMITED LIFETIME WARRANTY
• Customer Support: 1-(800) 832-0060 (U.S.A Based)

Package Information:
• Weight: 36 lbs (10.5kg)
• Box Size: 16 x 14 x 21 inches
• Footprint: 364mm (D) x 220mm (W)
• Binocular head type: 485 mm(D) x 411 mm (H) x 220 mm(W) (8.0kg)( 29.0 lbs)
• Trinocular head type: 485 mm(D) x 440 mm(H) x 2210 mm(W) (8.5Kg)(31.0 lbs)
• Binocular Ergonomic head type: 485 mm(D) x 440mm(H) x 2210mm(W) (8.5Kg)(31.0 lbs)