High-Magnification Digital Microscope with Dual Light Source

Gaopin GP-306S-4K 4K Measuring Microscope with Dual Light Source. This High-Magnification Digital Microscope with Dual Light Source，4K Ultra HD delivers parfocal zoom from 63X to 414X, maintaining sharp images through magnification adjustment. It is fitted with a 4K imaging module and precision monocular zoom lens. The base has built-in top and bottom dual light sources: top light for surface topography inspection, bottom transmitted light to view contours of semi-transparent samples. Built-in measurement tools enable fast dimension annotation, snapshot and video recording, meeting high-magnification observation and precision measurement requirements for tiny components.

Difference from conventional body-mounted microscopes

Difference from ordinary microscopes: Ordinary high-power microscopes only support reflected surface lighting and have limited capability for thin or semi-transparent samples. This High-Magnification Electron Microscope with Dual Light Source integrates top light and transmitted bottom light. One machine achieves both reflected and brightfield transmitted observation. 63–414X parfocal zoom and 4K imaging deliver superior measurement accuracy for both surface defects and internal contour inspection.

Product Applications

Application Scope: Ideal for microscopic observation and dimension measurement of chip pins, micro moulds, precision springs, connector contacts and thin gaskets. It detects micro cracks, defects and flatness, and can view light-transmitting contours of thin workpieces. Widely used in labs and production QC for semiconductor accessories and precision mould industries.

Technical Specifications

OnSite Evidence & Reliability (Firsthand Testing)

1. Stable Dual Light Source

Switchable coaxial top light & transmitted bottom light, suitable for transparent and opaque workpieces.

2. Reliable 4K Imaging

3840×2160 resolution, sharp distortion-free images, captures tiny burrs and solder defects for QC evidence.

3. Stable Zoom & Focus

Fast refocus after zooming, no image drift for repeated sample comparison.

4. Stable Output & Storage

HDMI+USB output, one-click photo/video. Software supports measurement and traceable marking.

5. Vibration-resistant Structure

Robust base and metal stand, anti-blur under minor workshop vibration for long-term production inspection.

Product Entity Overview

63-414 For which products is this detection range suitable?

1. Inspection of fine PCB traces and micro solder joints: Observe fine PCB circuits, BGA solder balls, identify cold solder, solder beads, circuit gaps and solder mask scratches. 63–414X reveals micro-scale solder joint defects.

2. Quality inspection for chips and semiconductor pins: IC chips, MOS tubes and connector pins. Detect pin corrosion, deformation, excess solder and package cracks, observe pin pitch and micro surface flaws.

3. Micro screening of precision miniature hardware: Tiny turned parts, precision terminals and micro springs. Inspect micro cracks, coating pinholes, edge burrs and cross-section defects after crimping.

4. Inspection of precision plastic and silicone parts: Micro injection molded parts, sealing rings and precision plastic housings. Check surface pinholes, weld lines, material shortage and fine scratches to evaluate molding quality.

5. Micro morphology observation of material surface: Metal plating, coatings, powder and fiber samples. Observe surface grains and texture for material comparison and preliminary failure analysis.

6. Micro dimension measurement of precision workpieces: With measurement software, measure line width, gaps, aperture, chamfer and other tiny geometric sizes, meeting precision inspection requirements for labs and production lines。

Unique Design Advantages

1. Parfocal Continuous Zoom Optical System with 63X–414X High Magnification

It adopts high-magnification coaxial zoom lens with magnification from 63X to 414X. The professional parfocal design keeps focus stable during zooming without refocusing. Delivers excellent optical resolution for observation of micro components, tiny cracks and micro burrs.

2. Dual Independent Adjustable Lighting System

Equipped with top ring reflected light and bottom transmitted light with separate brightness control. The reflected light inspects surface defects of PCB, metal parts and golden fingers; transmitted light is used for contour checking of transparent sheets and thin films. It reduces reflection and shadow, compatible with both transparent and non-transparent samples.

3. Native 4K Ultra-HD Imaging & Embedded Measurement System

Built-in 4K industrial CMOS sensor outputs real-time 4K video via HDMI. Integrated measurement function supports length, angle, radius, area measurement directly on monitor. No PC required for on-site defect inspection and dimension verification, with snapshot and video recording available.

4. HDMI + USB Dual Synchronous Output

HDMI connects directly to monitor for real-time on-site preview on production lines. USB connection enables PC functions including depth stacking, image stitching, batch image archiving and measurement report export. It satisfies both rapid workshop QC and advanced laboratory analysis.

5. Rigid Column Stand & Transparent Sample Stage

The vertical metal lifting column features smooth height adjustment and great vibration resistance to keep image stable even in factory environments. The base comes with a light-transmitting stage for transmitted light observation, equipped with sample holders to fix tiny samples for long-time continuous inspection.

Daily Maintenance of the Electron Microscope

Optical Lens Care: Only use professional optical lens tissue or microfiber dust-free cloth to wipe lens surfaces. Never use paper towels or rough cloth to avoid scratching lens coating. For fingerprints and oil stains, apply a small amount of optical cleaner to the cloth. Do not drip liquid directly onto the lens. Avoid touching the optical surface of the lens by hand.

Camera, Lens Barrel & Stand Maintenance: Clean the 4K camera, zoom barrel and metal column with dry dust-free soft cloth. Do not expose the whole unit to water. Keep alcohol, acetone and other strong corrosive solvents away to protect paint and printed marks. Keep all connectors dry to prevent metal oxidation and poor contact.

Stage & Focus Mechanism: Remove dust from the black stage with dry soft cloth. Clean dust on focus knobs and column guide rails regularly. A small amount of dry grease can be applied. Liquid lubricants are forbidden, to prevent oil dripping and contaminating lenses and samples. Operate the focus knob gently, do not turn it forcibly to avoid gear damage.

Power & Operating Environment: Use the original power adapter. Place the equipment in dry, low-dust environment, away from high temperature, humidity and heavy vibration. Power off and unplug the adapter when not in use for a long time.

How to Choose a Model

1. Workpieces for Medium & High Magnification Inspection: Samples requiring 63×–414× magnification to observe micro cracks, burrs and surface defects.

2. Transparent & Opaque Samples: Adopts dual light source. Suitable for opaque parts such as metal and plastic, as well as transparent & semi-transparent workpieces like films, glass and thin slices.

3. Precision Dimensional Measurement Required: Products that need micron-level measurement of length, angle and arc, with data collection and quality inspection report generation.

4. Tiny Precision Components: PCB boards, electronic components, precision molds, small hardware and other precision workpieces.

5. Image Archiving & Traceability Needed: Products requiring photo and video capture to save defect images for process traceability, quality archive and customer complaint evidence.

6. Customization: Supports neutral shipping

Authoritative Partners & Clients

GAOPIN microscopes are used by leading enterprises, research institutes, and universities. Our collaborative relationships include:

Tsinghua University – Microscopic scientific research and advanced material characterization

GREE Electric (Hefei) – Micro-defect inspection and quality verification of components

Dabo Medical – Micro surface quality inspection of medical implants

ZTE Optoelectronics Technology Co., Ltd. – Optoelectronic component testing & failure analysis

About GAOPIN

Kunshan Gaopin Precision Instrument Co., Ltd., founded in 2011, whose founder has accumulated industry expertise since 2005, is a tech-focused enterprise specialized in the design, R&D, sales and after-sales service of industrial microscopes. Boasting a core engineering team with more than ten years of professional know-how, the company guarantees proven technologies and consistent product reliability. GAOPIN offers more than one hundred optical product models and serves customers across the globe, dedicating itself to supplying tailor-made, cost-effective microscopy solutions. We offer prompt worldwide technical support covering online conferences, video-assisted operation guidance and remote training sessions. Our manufacturing base is located in Kunshan, Jiangsu Province, in close proximity to Shanghai. Both on-site factory inspections and virtual plant tours are available for clients. Feel free to get in touch with us for sample test images shot by this High-Magnification Digital Microscope with Dual Light Source, 4K Ultra HD, so you can evaluate its imaging performance directly.

Frequently Asked Questions

Q1: What is the magnification range of GP-306S-4K dual-light microscope and what is its zoom feature?

A1: It offers magnification from 63X to 414X with parfocal zoom. The focus stays consistent when switching magnification levels, removing repeated refocusing work and greatly improving efficiency for batch sample inspection.

Q2: What inspection scenarios are suitable for the two lighting modes of this dual-light model?

A1: The top light is used to check surface defects on workpieces. The built-in transmitted bottom light on the base illuminates transparent and semi-transparent samples for observing internal contours and edge structures. One unit handles both surface inspection and translucent sample analysis.

Q3: How is the imaging performance of GP-306S-4K and does it support measurement and record saving?

A1: Equipped with a 4K high-definition imaging system at 3840×2160 resolution. The supporting software supports precise dimensional measurement. Photo capture and video recording are available for inspectors to store images and measurement data for quality traceability.

Q4: What advantages does the base and stand design of this system have?

A4: It adopts a dedicated white base with a transparent window for transmitted light observation, paired with a vertical single-pillar stand. The focusing handwheel has smooth and stable damping. The whole structure is solid and resistant to minor workshop vibration, ideal for long continuous quality inspection.

Q5: Is a computer required for observation when operating this microscope?

A5: It can connect directly to a monitor for live view, photo capture and video recording without a PC. Advanced functions including software measurement and data export become available after connecting to a computer, flexibly adapting to different workstation needs.A3: Fluctuations are caused by inconsistent manual point selection, workpiece offset, unfocused images or invalid calibration. Fix the workpiece, ensure clear manual focusing, unify selection standards and perform accurate recalibration to improve measurement stability and repeatability.

Q6: Why is there color deviation on the displayed image?

A4: Check the white-balance setting. Perform manual white-balance calibration against a standard white reference surface. Also verify that the light-source brightness is stable.

Q7: No HDMI display and failed software image capture?

A5: Check power supply and tight connection of HDMI and USB ports, and confirm the correct signal-output mode. Replace faulty cables if needed. Restart the device to restore normal image display and capture functions.