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Modern manufacture of advanced optics and photonics components is now possible with the help of a technology called active alignment Bonding System, which also increases performance, profitability, and yield. Traditionally, different components of an optical system are serially aligned through a number of time-consuming loops.
As seen in the illustration below, active alignment adhesive Bonding Systems are utilized in camera, sensor, optical, and optoelectronics components for precise, computer-controlled alignment. The components are mated, and aligned using computer control, and the adhesive is dispensed before being set by UV curing.
UV cure adhesives can be utilized if light can reach the entire bonding zone. However, the components frequently contain shaded areas, necessitating the use of dual-cure adhesives, part of which is cured by UV and part of which is cured by heat.
For active alignment applications, ACW offers 100% epoxy, high Tg UV-Cure, and Dual-Cure adhesives. These “epoxy only” adhesives offer exceptional environmental performance and bond strength, and the high Tg makes sure that there is no movement during heat cycling.
Some of the most well-liked active alignment adhesives are listed in the table below. Keep in mind that Dual-Cure epoxy adhesives feature a low-temperature range (80-100 °C) for temperature-sensitive components and a high-temperature range (130-150 °C) for optimum bonding.
The Global Active Alignment Bonding System market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
The Henkel’s launched Active Alignment Bonding System’s most recent invention, Loctite Ablestik NCA 01UV, is revolutionizing the assembly of high-resolution advanced driver assistance systems (ADAS) camera and lidar modules with previously unheard-of levels of speed, efficiency, and sustainability.
In order to reduce time, energy, and CO2 emissions, Henkel’s innovative active alignment adhesive may be cured in a single step with just three seconds of UV LED light exposure.
This eliminates the need for oven curing. With just a few seconds of UV LED irradiation during the fixing step, Loctite Ablestik NCA 01UV reaches its maximum performance and final bond strength. Thus, the time- and energy-consuming post-curing process in an oven is no longer necessary.
This less complicated technique also has a strong business justification because it avoids the significant initial investment required for heat cure ovens, the accompanying running and maintenance costs, as well as the need for manufacturing space.
