Having the capability to jet fluids with viscosities greater than 25 mPa.s provides much more flexibility for manufacturers of optical elements in consumer electronics and automotive applications, offering an alternative or addition to the predominantly used imprint technology for selected applications like micro lenses.
For nano-imprint applications, inkjet-printing can also replace spin-coating, reducing material waste by up to 80 percent. Manufacturers can now use Xaar’s inkjet technology to create thin protective layers, reduce reflection losses or build light blocking structures or spacers. The capability is also proving valuable for 3D-printing to create single (micro) lenses and whole micro-lens arrays.
DELO has worked closely with Xaar to evaluate and develop this application using Xaar’s new 5-step process. The new programme uses Xaar’s technical expertise and facilities, with dedicated laboratory space. The process helps with initial fluid evaluation and guidance through to sample production and application development, enabling customers to evaluate the technology with confidence. Continued support, technical advice and application improvements also form part of the process.