4K High-Magnification Digital Microscope with Top and Bottom Illumination

Gaopin GP-307S-4K 4K High-Magnification Digital Microscope with Top and Bottom Illumination. This 4K Ultra High-Magnification Digital Microscope with Top and Bottom llumination features parfocal zoom from 95X to 614X, the highest magnification model in this series. It is equipped with a 4K camera and premium monocular zoom lens. The base integrates dual light sources: top light for micro surface morphology inspection, bottom transmitted light for semi-transparent thin samples. Built-in measurement system supports micron-level dimension measurement, snapshot and video storage, designed for high-magnification inspection of ultra-small workpieces.

Difference from conventional body-mounted microscopes

Difference from ordinary microscopes: Standard digital microscopes can hardly reach stable magnification around 600X and most lack transmitted bottom light to view contours of semi-transparent samples. This 4K High-Magnification Digital Microscope with Top and Bottom Illumination achieves 95–614X parfocal zoom with stable sharp images at high magnification. Dual light sources can be switched freely. One machine handles both reflective surface inspection and transmitted contour observation, supporting micron-level precision measurement, outperforming ordinary digital microscopes.

Technical Specifications

Product Applications

Application Scope: Used for micro defect inspection and micron-level dimension measurement of microchips, cutting tool edges, fiber end faces, miniature electronic parts and thin optical films. It observes micro scratches, chipping, line width and light-transmitting contours. Suitable for semiconductor, optical component and precision cutting tool industries.

Product Entity Overview

95-614 For which products is this detection range suitable?

1. Inspection of ultra-fine PCB traces and BGA micro solder joints: Observe ultra-fine PCB tracks and BGA solder balls, detect micro cold solder, solder ball cracking, circuit gaps and solder mask pinholes. 95–614X is suitable for micro-scale fine defect inspection.

2. Inspection of semiconductor chip pins and packaging: IC chips, wafer pins and precision connector pins. Check pin corrosion, tiny chipping, excess solder and package cracks, observe micro morphology of pins.

3. Metallographic observation on crimp cross-section of precision terminals: Sliced wire harness copper terminals, check copper wire breakage, crimp voids, uneven plating thickness and micro deformation of cross-section for harness failure analysis.

4. Micro defect screening for miniature precision hardware: Micro turned parts, micro-hole components and precision contacts. Detect micro cracks, coating pinholes, fine burrs and grinding scratches on surfaces.

5. Micro morphology observation of material coatings and powders: Metal plating, film coating, powder and fiber samples. Observe particle shape and coating pores for material comparison and failure analysis.

6. Measurement of tiny precision dimensions: Cooperate with measurement software to measure fine line width, micro-hole inner diameter, tiny gaps and coating thickness, meeting high-precision measurement requirements of laboratories and quality inspection stations.

OnSite Evidence & Reliability (Firsthand Testing)

1. Stable 4K Imaging

3840×2160 resolution, distortion-free for long-time work, captures micro defects for QC evidence.

2. Reliable Parfocal Zoom

95–614× parfocal zoom. No frequent refocusing on magnification change, no image drift for high-precision inspection.

3. Stable Dual Light Source

Switchable coaxial top light & transmitted bottom light, works for both transparent and opaque samples with even illumination.

4. Stable Multi-port Measurement Output

HDMI+USB3.0+LAN, dynamic image measurement, multi-unit conversion, photo/video capture for traceable records.

5. Vibration-resistant Base

Dedicated sample stage and metal stand, anti-blur under minor workshop vibration for high-magnification observation.

Unique Design Advantages

1. 95X–614X Parfocal Continuous Zoom Lens

Focus stays consistent during zooming, ideal for inspection of micro components, tiny cracks and precision pins.

2. Dual Independently Adjustable Light Sources

Top ring reflected light + bottom transmitted light with separate brightness control, compatible with transparent and opaque samples, reducing reflection and shadows.

3. Native 4K Ultra HD Imaging & On-board Measurement

Direct dimension measurement on monitor. Supports length, angle, radius and area measurement, no PC required for on-site QC.

4. HDMI + USB Dual Synchronous Output

HDMI for real-time preview; USB enables depth stacking, image archiving and measurement report export for workshop and lab usage.

5. Transparent Stage & Heavy-duty Metal Stand

Light-transmitting base for transmitted light observation. Vibration-resistant metal support ensures stable imaging during long 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 bad contact.

· Stage & Dual Light Source Care: Remove dust from the white stage and upper & lower LED dual light ring with dry soft cloth. Clean the light window in the same way as the lens, do not use corrosive liquid. Do not pull the light cable forcibly.

· Focus Mechanism Maintenance: 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, light sources and samples. Operate the focus knob gently, do not turn it forcibly to avoid gear damage.

· Power & 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. High-magnification Workpieces: Samples requiring 95×–614× magnification for inspection of tiny scratches and micro cracks.

2. Transparent & Opaque Samples: Suitable for opaque parts such as metal and plastic, as well as transparent & semi-transparent workpieces like films and glass, thanks to dual light sources.

3. Dimensional Measurement Required: Products needing micron-level measurement of length, angle and arc, with data collection and inspection record generation.

4. Micro Precision Components: Micro electronic components, chip pins, tiny molds, precision hardware and other miniature workpieces.

5. Image Archiving Needed: Products requiring photo and video capture for defect evidence, quality reports, customer complaint proof and process traceability.

6. Customization: Supports neutral shipping

Authoritative Partners & Clients

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

Beijing Institute of Technology – Microscopic research on precision devices and new materials

CATL – Micro-defect inspection for lithium battery electrodes & cells

Jiangsu Bigao Electromechanical Equipment Co., Ltd. – Dimensional & micro-flaw detection for precision machined parts

Fudan University – Microscopic observation and research on materials and biological samples

Huawei Technologies Co., Ltd. – incoming material and production-line QC

Tsinghua University – teaching, laboratory imaging, and experimental archiving

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 4K Ultra High-Magnification Digital Microscope with Top and Bottom llumination, so you can evaluate its imaging performance directly.

Frequently Asked Questions

Q1: What inspection benefits does the dual-light design of GP-307S-4K microscope bring?

A1: The unit is equipped with top illumination and bottom transmitted light. Top light is for surface feature observation, while bottom transmitted light is used to view internal contours of transparent or semi-transparent samples. One microscope handles samples of various materials.

Q2: What is the magnification range and parfocal zoom feature of this microscope?

A2: It offers magnification from 95X to 614X with parfocal zoom. Focus stays consistent when changing magnification, removing the need for repeated refocusing and boosting inspection speed.

Q3: Does GP-307S-4K support dimension measurement and what is its imaging standard?

A3: It adopts a 4K imaging system with 3840×2160 resolution. Matching software supports precise measurement. Users can capture photos and videos to save sample images and inspection records for quality archive.

Q4: What are the features of the stand and base for this system?

A4: It comes with a dedicated white inspection base and vertical single-pillar stand. The base has a transparent window for transmitted light. The focusing assembly moves smoothly and stays stable without shifting during long-time inspection.

Q5: What practical advantages does the parfocal zoom function bring to quality control?

A5: The focus remains unchanged while switching magnification. Operators do not need to reposition the view repeatedly. It is ideal for fast batch sampling, cutting redundant operations and improving production line inspection efficiency.