Difficulty one Special-shaped seal design - traditional mold lacks accuracy

Challenge analysis:In order to pursue wearing comfort and aesthetic design, AR glasses often adopt complex streamlined special-shaped structures in their frames and temples.This irregular geometry makes it impossible for traditional flat pressure sealing or standard sealing molds to achieve effective and uniform sealing, and it is easy to cause misjudgment or damage to the product during testing.

Solution: Customized sealing mold

With its rich industry experience, Hairis Technology can provide fully customized sealing molds for specific models of AR glasses.The sealing surface of the mold in contact with the product is processed by high-precision CNC, which can effectively control the processing accuracy of the mold, so that the positioning gap between the product and the mold is within 0.05mm, while ensuring the compression amount and positioning accuracy of the silicone.

Difficulty 2 The cavity is extremely small, and it is difficult to identify large leaks - the traditional pressure drop method "fails"

Challenge analysis:The internal space of AR glasses is extremely small, and its own cavity volume may be only a few tenths of a milliliter.If the product has a relatively large leakage point (i.e., a "big leak"), the product cavity is filled with air during the inflation stage, and there is no pressure difference between the inside of the product and the test cavity, causing the detection system to be unable to identify this obvious defect.

Solution: HC classic, HD ingenuity series - high-precision detection

For high-precision seal detection of micro-sized cavities, Hairis has specially improved and upgraded the HC classic series and HD ingenuity leak detectors, and updated the algorithm to enable them to accurately identify leaks as low as 0.2 ml. This successfully solved the industry pain point of "large leaks" being covered up during the inflation stage and ensured the reliability of detection.

At the same time, in view of the characteristics of AR glasses products and the needs of the production line, it can also be used with the Hairis multi-channel high-precision test platform to achieve deep integration of the test platform and MES. This solution can realize automatic code scanning to trigger testing, linkage manipulators to complete precise positioning and operation, and greatly improve the efficiency of the production line.

Difficulty three Non-destructive testing - ensuring zero damage to products

Challenge analysis:After discovering defective products, the traditional testing method is water immersion testing (pressurizing the water surface and looking for bubbles at the bottom of the water), which will cause a certain risk of water ingress to the product itself.Therefore, a completely "non-destructive" detection method is crucial.

Solution: HQ hydrogen and nitrogen inspection series - non-destructive testing

Using the tracer gas detection method, the product is filled with hydrogen nitrogen (5% hydrogen and 95% nitrogen), and a test probe is used to "capture" and quantify the external leakage of hydrogen and nitrogen. Once leaked, an alarm will be issued and the leak point will be located.This method effectively avoids the risk of water intrusion into the product. The minimum detection leak rate of the Hairis HQ hydrogen and nitrogen detection series leak detector is 5*10^-7mbar*L/s, which is 1000 times higher than the air-tight resolution and 10 times lower than the cost of helium detection. The four-in-one integrated design is extremely cost-effective and can be configured in both wireless and wired configurations, which greatly meets the flexible needs of customers' production lines.