Cognex DSMax 3D laser displacement sensor powers new generation of Apple cameras

 With the debut of Apple 13, Apple’s official website has been in a rush. The first batch of the new phone has been sold out and restocked overnight. Many people lined up at the door overnight to wait for the release, saying “13 is delicious”. Of course, what makes everyone really happy is the camera system, which is also the highlight of the upgrade of the 13 series: the main lens size of the entire series has become larger, making the aperture wider, and the sensor-shift optical image stabilization, which was originally only available in the 12 flagship series, has It has also become standard equipment for the entire series.

     In the highly competitive smartphone market, cameras are a key differentiator. The photography function of mobile phones is particularly important for contemporary people who are keen on media and social interaction. But the strict image quality requirements of smartphone cameras also mean that they must perform very precise inspections. Even very small changes in the height of the various optical layers of a camera can have an unacceptable impact on image quality. While individual optical parts are inspected individually before assembly, all this will be in vain if they are misaligned during installation.

       In particular, the inspection process involves many small tolerance measurements and contour points. Only telecentric lenses (which collimate light to minimize geometric distortion and perspective effects) can guarantee the necessary measurement accuracy.

DSMax 3D laser displacement sensor

       The Cognex DSMax laser displacement sensor 's telecentric lens captures 2,000 independent points within a 32 mm laser line profile. By combining all contours within its field of view (FOV), high-precision 3D detection can be achieved. This coupled with High Dynamic Range (HDR) technology helps adjust contrast so that bright and reflective features between optical layers create less noise on the inspection image. This allows DSMax to more accurately determine whether optical layers are aligned and confirm that optical layers are at the correct height. In addition to height, sometimes manufacturers also need to detect some defects, such as particles, hair or dust on the lens. They also need a 2D vision system integrated with lighting and deep learning functions to detect these defects. Cognex overall solution These problems are solved very well.

       In addition to mobile phone camera height measurement applications, Cognex's 3D vision tools can reliably detect and correctly assemble mobile phone glue beads in various production links. , and ensure there are no cosmetic defects.

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