Smartphones are ushered in the era of double-sided screens. Look here before starting a new machine!

Press conference

Shanghai U + Fashion Art Center

Vivo NEX double-sided screen captures eyeballs

Dual screen three cameras 10GB memory

Snapdragon 845 processor

Front and back earpiece openings

Rear main camera (selfie artifact)

Gradient body

The appearance of the entire phone

Make people throb! !! !! !!

1544687573457044.jpg



However, most people still have concerns when starting the new machine. The dual-display mobile phone design makes the protection of mobile phone screens more difficult. The quality control technology of mobile phone glass cover manufacturers is more demanding, and machine vision technology is used to achieve defects and size detection. It is a very important link to solve these problems.

The process flow for the production and processing of glass cover for mobile phones mainly includes: material opening, carving, grinding, cleaning, polishing, testing, strengthening, mold opening, UV transfer, coating (PVD), printing (screen printing / spraying), radium Carving-testing-fitting-packaging.

   Common types of defects include the following:

Point defects: all point defects such as abrasions, stains, black and white points, impurity points, dust particles, and bumps;

Linear defects: all linear defects such as swarf, foreign matter, wool, fibers, impurities, etc .; fine scratches (no deep scratches), hard scratches; chipping corners; dirt; cracks / cracks / bumps.

1544687618681732.jpg
Therefore, glass cover surface defect detection requires high detection accuracy and reliable lighting effects to ensure.

The traditional mobile phone glass cover inspection uses manual inspection technology. On the one hand, a large amount of manpower investment increases the cost; on the other hand, during quality inspection, workers observe the appearance of the glass under strong light. Long-term visual fatigue leads to large measurement errors. Low accuracy.

Vesto smart phone cover imaging solution uses high-resolution MV-E70 million camera with BT-R35F192 dual telecentric lens and BT-RTCL192 parallel light source to obtain high-definition images, detect surface scratches, edge defects, dimensional measurement and other defects Appearance defect.

WeChat image_20181213154730.jpg
Machine vision inspection mobile phone glass cover equipment

WeChat image_20181213154734.jpg
Large target surface high pixel camera and imaging system with high resolution bi-telecentric lens

solution

MV-E70 million cameras

1544687789243691.jpg

MV-E7000M is a 70 million ultra-high-resolution Ethernet industrial camera launched by Wei Shi. The exterior uses high-quality photosensitive devices, high processing accuracy, low power consumption and excellent algorithms, making the image clear, low noise, stable performance, Good color reproduction. The camera is optimized by Vesztech's own technology, which not only makes the image quality more delicate, the details are clearer, but also the acquired image has better edge sharpness. At the same time, the MV-E7000M camera uses a more stable and versatile Gigabit Ethernet interface for transmission, which is more cost-effective and is a better choice for high-precision inspection projects.

BT-R35F192 double telecentric lens

1544687997286276.jpg

The BT-R35F192 dual-telecentric lens F-mount camera phase adjustment function is compatible with high-resolution cameras, improving the efficiency of installation and adjustment, and ensuring the acquisition of clear contours and strong contrast images. The telecentricity is small, the resolution is high, and the distortion is less than 0.05%, which ensures the stability of the measurement application, the large depth of field, and avoids visual errors caused by product fluctuations. Its compact structure and wider range of application.

BT-RTCL192 parallel light source

WeChat image_20181213154751.jpg

BT-RTCL192 parallel light source is suitable for compact backlight with high precision measurement. The light source has the characteristics of uniform illumination, no screen flicker, high stability, etc., and greatly shortens the overall length of the visual system. BT-RTCL192 parallel light source has a variety of colors Optional, it is the perfect match for BT-R35F192 bi-telecentric lens.