Inside a pair of AI glasses, optical waveguide lenses, a micro mainboard, a battery and precision optical structures are packed into an extremely small, irregularly shaped cavity. A single leak point invisible to the naked eye is enough to let moisture and dust seep into the housing — fogging the waveguide, corroding the mainboard and short-circuiting the electronics — and ultimately leading to whole-unit repairs and batch returns. In other words, the first hurdle in mass-producing AI glasses isn't the display or the algorithm — it's sealing.

So how is that hurdle actually cleared? Let's look at a real customer case to understand Hirays' sealing test capabilities.

01 Field Case: The Complete Testing Process for a Pair of AI Glasses

This single-station solution consists of a benchtop test platform, an HP pioneer-series direct-pressure airtightness tester, and a custom fixture.

The fixture adopts an upper/lower mold structure combined with four-sided limit posts for positioning, precisely conforming to the contour of the AI glasses frame. Loading and unloading are quick and easy, and the product's appearance remains undamaged throughout testing. When handling multiple product models, customers only need to swap the fixture — no need to re-invest in complete machines — effectively spreading the overall cost of the production line.

Parameters were set per customer requirements: inlet pressure 5 kPa, leak judgment upper limit 100 Pa and lower limit −20 Pa, with 5 seconds each for inflation, stabilization and test, and 2 seconds for exhaust. The instrument interface clearly displays the four stages; a unit is judged as a good part only when the leak values of every stage fall within the specified range.

With a tight cycle time and fully traceable pass/fail criteria, "invisible leaks" become quantifiable data.

02 From Single Station to Automation: Matching Different Takt Times

The single-station solution addresses sample validation and small-batch pilot production. Once you enter mass production, the real test is line takt time.

To meet this gradient of needs, Hirays offers a complete product matrix:

⬆ Benchtop platforms — flexible deployment, ideal for R&D validation and sampling inspection;

⬆ Floor-standing platforms — higher load capacity, expandable to multiple stations, balancing precision and efficiency to suit conventional line takt times;

⬆ Automated test platforms — seamlessly integrated into the line, automating loading, testing, sorting and data upload end to end.

From a single instrument for prototyping to complete line equipment for mass production, there is a solution to match every takt time.

03 Core Technology: Measurement Accuracy Is What Really Counts

What ultimately determines whether test results can be trusted is accuracy.

AI glasses are high-value, precision-engineered products with tiny internal cavities. Their sealing test challenges center on three things: no missed detections and no false calls, non-destructive testing, and efficiency and precision in equal measure.

To this end, Hirays offers a broad range of direct-pressure and differential-pressure airtightness testers tailored to precision testing of micro cavities.

Paired with them are custom contoured sealing fixtures built to the product's geometry — the fitting clearance between fixture and product is controlled to within 0.05 mm, ensuring effective silicone compression and positioning accuracy without damaging the frame or lenses, thereby establishing a stable sealed test environment.

More critically, the detection algorithms have been upgraded: they can accurately identify leak volumes as low as 0.2 ml, successfully resolving the industry pain point of "large leaks being masked during the inflation stage."

04 From Technical Strength to Industrial Value

Centered on product sealing, Hirays provides one-stop services spanning solution evaluation, fixture design, instrument selection, algorithm commissioning, line integration and after-sales support. It already serves several leading AI glasses manufacturers and has accumulated extensive sealing test experience in the industry.

In 2026, Hirays was honored with the "Most Investment-Worthy Enterprise" award at the AI Glasses China Tour, fully demonstrating its core technological strength and industrial value in sealing testing for AI glasses and smart wearables.

The AI glasses race has only just started, and what decides who goes the distance is often the details you cannot see. Hirays' extensive product matrix, professional technology and service are providing strong support for the quality upgrade of the AI glasses and smart wearable industry.