GP-L500-300C is a Research grade metallographic microscope with an extra-large moving stage for large-size samples. Large-Stage High Magnification Metallurgical Microscope delivers 1080P HD imaging to show clear microstructure details. The trinocular port supports camera installation for metallographic-analysis workflows. It is ideal for large-size-material metallurgy observation, semiconductor inspection, PCB slice analysis and industrial-laboratory quality-control scenarios.

This Large-Stage High Magnification Metallurgical Microscope is suitable for microscopic observation of metallographic microstructures and surface morphology. It serves as an ideal research tool for metallurgy, mineralogy and precision-engineering disciplines.
HD camera built-into trinocular housing for simultaneous viewing via eyepiece and monitor. HDMI real-time micro-image output combines observation and recording workflows.
Optical magnification 50-800X; max pure-digital magnification up to 6080X with five-objective-lens set. Precision optical-path delivers sharp details for wafer and chip micro-inspection.
Stable focus knobs matched with lens-barrel assembly ensure gentle focusing and reduce image shaking.
Oversized moving specimen-stage paired with thick metal base. Remains stable for large-size samples without wobble during long-time-observation.
Minimalist all-white industrial-style rigid frame. Well-suited for semiconductor workshops and university laboratories.
Optimized for chip-and-wafer inspection; also widely applied for semiconductor testing, metallographic analysis, material-research and quality-evaluation work.
1080P photo & video capture, built-in precise on-monitor measurement, U-disk storage. Digital imaging simplifies file archiving, image-comparison and post-analysis work.
Binocular viewing plus synchronous electronic observation: Eyepiece view and monitor display work synchronously. Ordinary metallurgical microscopes only support eyepiece observation; extra camera accessories are required for screen output.
Large-size stage & ultra-high magnification: Maximum optical magnification reaches 800X; maximum pure-digital electronic magnification reaches 6080X. Oversized moving stage accommodates large-dimension samples. Conventional metallurgical microscopes are equipped with small-size working stages and offer lower electronic magnification.
Direct HDMI output: Connect directly to monitor via HDMI cable. General metallurgical microscopes require separate cameras and capture cards for image output.
On-monitor offline measurement: Dimension measurement can be completed directly on monitor without PC connection. Ordinary metallurgical microscopes rely exclusively on PC-software measurement.
Offline U-disk storage: Save photos and videos onto U-disk without a computer. Traditional models must connect to PC for image saving.
Dedicated metallurgical optical path: Optimized for metal-grain, coating and metallographic-material analysis. Ordinary digital microscopes lack this specialized optical path and cannot visualize metallographic structures.
Mechanics: Full-metal heavy-duty frame for high rigidity and anti-vibration performance. Precision coaxial coarse-fine focusing with locking & limit device, fine-movement graduation value: 0.7 μm. Large-format manual XY stage with smooth low-wear movement. Trinocular optical path maintains optical co-alignment when switching objectives.
Optics: Infinity-corrected plan-achromatic metallurgical objectives. Reflected halogen-lamp illumination with adjustable brightness.
Imaging & Measurement: 2-Megapixel 1080P HD CMOS sensor, HDMI-only output. Built-in firmware measurement runs on-monitor. Pre-calibrated at factory; parameters persist after power-off; no daily calibration required. Data saving only via compliant U-disk. PC-connection, USB-port and secondary-development functions are NOT supported for GP-L500-300C.
Quality & Maintenance: Full-item factory optical-calibration and performance inspection. Inspection reports and sample micrographs can be provided upon request. Do not disassemble optical modules. Regular dust-proof cleaning will extend service life.
Semiconductor Wafers & Chips (Core Application):
Silicon wafers, lithography slices, IC chips, MOS tubes, PCBs, FPC flexible circuits, packaged solder joints.
Inspection targets: internal micro-chip circuits, wafer coatings, etching defects, packaging bubbles, cold-soldering
joints, oxidation and pin deformation.
Metallographic Specimens & Hardware-Cutting Tools:
Metallographic sections, alloy steel, drill bits, milling cutters, precision-stamped metal parts.
Inspection targets: metal-grain structure, heat-treatment metallographic analysis, micro surface cracks,
cutting-edge chipping, burrs, wear traces and internal material impurities.
Laboratory Samples: Powder, Fiber & Thin-Film:
Metal powder, chemical powder, carbon fiber, textile fiber, optical-coating films.
Observe particle morphology, fiber texture, film delamination and micro-coating structures.
Optoelectronic & Precision-Plastic Components:
LED chips, optical lenses, injection-molded parts, semiconductor-packaging glue.
Detect micro-pores, surface stains, rough edges, delamination, bubbles and tiny cosmetic flaws.
Large-Size Precision Miniature Components:
Connectors, terminals, micro-springs, large stamped workpieces, long-dimension parts.
Extra-large moving stage accommodates oversized samples; pixel-level accurate measurement for gaps, hole diameters,
height differences and linear dimensions.
Academic Labs & Semiconductor-Factory QC:
Material-research experiments, incoming-goods & finished-goods full-inspection for semiconductors,
metallographic-specimen observation; photo/video archiving.
Expanded large platform enables full observation of wafers, large PCBs and big metal slices without specimen cutting. Perfect for semiconductor-wafer, circuit-board and large-hardware-component inspection.
Step-adjustable magnification: optical 50x-800x; max digital magnification up to 6080X (pure digital zoom). Captures overall workpiece appearance and ultra-fine details such as chip circuits, metal grains, micro-scratches and coating pores. Ideal for semiconductor-R&D testing.
Trinocular synchronous light-path enables simultaneous observation via binocular eyepieces and HDMI-monitor. Suitable for R&D-team discussion, double QC re-check and university-laboratory teaching to reduce misjudgment.
Single-HDMI-output with built-in on-monitor measurement function. Save 1080P photos and videos directly onto compliant U-disk. Plug-and-play with simple wiring. Fits basic-inspection stations in semiconductor workshops and small-material laboratories.
Thick integrated anti-vibration body together with coaxial manual coarse-fine focusing. Smooth focusing without image-shifting during long-hour continuous inspection. Suitable for daily mass incoming-test for wafers & circuit boards and long-time static-sample laboratory analysis.
Neutral-packing shipment is available upon request.
| Item | Description |
| Product | GP-L500-300C Research grade metallographic microscope |
| Category | Industrial Research-Grade Large-Platform Trinocular Metallurgical Inspection Microscope |
| Core Technologies | Trinocular synchronous-viewing optical system, large-area moving specimen stage, high-power metallurgical objective-lens set, HD CMOS image sensor, built-in digital precision-measurement module, HDMI real-time video output, U-disk local image-storage technology |
| Key Specifications | Visual magnification: 50/100/200/500/800×; Electronic magnification: 380/760/1520/3800/6080× (6080X is pure digital zoom); Output interface: HDMI only; Capture resolution: 1920*1080; Manual focusing; Built-in precise measurement function, U-disk storage; Monitor terminal supports HD image preview, photo capture and video recording. |
| Typical Applications | Wafer & semiconductor-chip microstructure inspection, large-size electronic-component observation, metal metallographic-grain analysis, packaging-circuit detection, PCB cross-section inspection, new-energy-material testing, laboratory advanced-material research |
| Manufacturer | Kunshan Gaopin Precision Instrument Co., Ltd. |
| Manufacturer Location | Kunshan, Jiangsu, China (adjacent to Shanghai) |
| Model | GP-L500-300C |
| Resolution | 1920×1080 |
| Real Effective Pixels | 2 Megapixels |
| Focusing Method | Manual focus |
| Optical Format | 1/2" |
| Pixel Size | 3.75 μm × 3.75 μm |
| Output Method | HDMI |
| Detailed functional introductions corresponding to each output interface | HDMI can connect to 4K-compatible displays. Embedded professional image-processing firmware supports photo-recording, video-recording, dimensional measurement, image playback and image comparison, operated by mouse in real-time. |
| Frame Rate | HDMI: 60fps @1920*1080 |
| Depth-of-Field Synthesis | / |
| Image Stitching | / |
| Measurement Method | Built-in on-monitor measurement system |
| Measurement Accuracy | 0.001 mm |
| Measurement Units | mm / μm / mil / inch (4 switchable units) |
| Measurement Tools | Length, angle, radian, circle, polygon, polyline, center-to-center distance, rectangle, annotation adding, automatic edge detection, scale bar and more |
| Storage Method | U-disk storage |
| Display Language | Simplified Chinese / English (switchable) |
| Processor | ARM Cortex-A7 Dual-Core @ Max 1.3 GHz |
| Operating System | Independently-developed measurement firmware based on Linux 3.1 kernel |
| Image Naming | Automatic or manual naming available |
| Viewing Head | 30°-inclined hinge-type trinocular head; inter-pupillary adjustment range: 53 mm-75 mm |
| Observation Modes | Bright-field / oblique illumination / simple polarization |
| Illumination System | Reflected-only falling-light illumination system, 100-240V wide-voltage input, adjustable filament center, continuously-adjustable light intensity. |
| Stand |
① Shooting-type rack, low-hand-position coaxial coarse-fine focusing mechanism, with locking and
limiting
devices; fine-movement graduation value: 0.7 μm. Halogen-lamp reflected-light illumination. ② Bright-field reflector with variable aperture stop, field stop and color-filter switching unit. ③ Yellow, blue, green filters and frosted-glass sheet supplied for reflected-light optical path. |
| Mechanical Stage | ★Mechanical moving stage. Stage dimension: 280 mm × 270 mm; X-Y travel: 204 mm × 204 mm (8-inch travel). Glass specimen-carrier plate for reflected-light observation only, suitable for large-dimension workpieces. |
| Light Source | 6V 30W halogen-lamp chamber (reflected light only) |
| Simple Polarization Function | Push-pull type polarizer and analyzer installed |
| Electronic Interface | CTV 1X fixed-focus camera interface; CTV 0.5X is optional with price difference compensation. |
| Eyepieces | Two WF10X/22 mm wide-angle plan-field eyepieces with individual diopter adjustment |
| Nosepiece | ★Mingchang five-hole objective nosepiece |
| Metallurgical Objectives |
★Infinity-corrected plan-achromatic metallurgical objectives ① PL L5X/0.12, Working Distance: 26.1 mm ×1pc ② PL L10X/0.25, Working Distance: 20.2 mm ×1pc ③ PL L20X/0.40, Working Distance: 8.80 mm ×1pc ④ PL L50X/0.70, Working Distance: 3.68 mm ×1pc ⑤ PL L80X/0.80, Working Distance: 1.25 mm ×1pc |
| Optical Magnification | 50X, 100X, 200X, 500X, 800X (five-level switchable) |
| Electronic Magnification | Approx. 380X, 760X, 1520X, 3800X, 6080X (five-level switchable); optional range: 190-3040X. |
GAOPIN microscopes are used by leading enterprises, research institutes, and universities. Our collaborative relationships include:
Tianjin University of Commerce – Material-laboratory teaching, micro-imaging & experimental-data archiving
DOOV – Mobile-device assembly inspection, screen & component-appearance testing
GREE Electric Appliances (Hefei) – Precision dimension-measurement and defect-inspection for home-appliance parts
Lens Technology Co., Ltd. – Micro-flaw detection for glass-cover-plates and phone-protective-panels
Jiangsu Bigao Electromechanical Equipment Co., Ltd. – Dimensional & micro-flaw detection for precision-machined parts
Dabo Medical – Micro-morphology analysis for implant-type medical-devices and biomaterials
A1: Only HDMI interface is fitted for real-time monitor display.
A2: It supports 1080P high-definition photo and video recording. Files can be saved to FAT32-formatted U-disk within 32 GB capacity. Built-in on-screen measurement tool supports dimension marking, data saving and measurement-report export.
A3: No-image troubleshooting: Check power-supply, HDMI cable and monitor signal source, then restart the device. Blurry-image troubleshooting: Adjust manual-focus handwheel, lock objective lens, lay sample flat and clean lens surface. U-disk-recognition failure: Replace or re-format U-disk (must be FAT32 and ≤32 GB).
A4: Suitable for metallographic observation, metal-material analysis, powder-metallurgy testing, precision-electronic-component inspection, scientific-research and teaching experiments.
Kunshan Gaopin Precision Instrument Co., Ltd. was officially founded in 2011. Our founding-team accumulated optical-technology experience starting from 2005. We are a manufacturer of industrial-inspection-equipment providing full-range services: independent optical design, product R&D, international sales and long-term after-sales-support for industrial microscopes. Our in-house engineering specialists have over ten-years' professional experience for optical-instrument development, ensuring stable technical performance and consistent product reliability.
GAOPIN supplies more than one-hundred categories of optical instruments for worldwide customers. We deliver flexible, cost-effective customized microscopy-solutions to satisfy diverse industrial-testing and laboratory-research requirements. Global overseas-buyers can get fast-response technical-support including online-video consultation, step-by-step operation guidance and remote-equipment-training. Our factory locates in Kunshan, Jiangsu Province (close to Shanghai). On-site factory visits and virtual online-tours are welcomed. Please contact us for real sample-testing images captured by this Research grade metallographic microscope for imaging-quality evaluation.
Address
Building 2, Shuanglian International Business Center, Huaqiao Town, Kunshan City, China
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