The choice and adaption of the right cover glass is an important aspect when developing the perfect HMI for your application. This begins with the choice of the right material. Followed by the choice of the adequate color to the preferred or necessary edge design and surface treatment, such as hardening processes to enhance the endurance. Our long term partners as e.g. Irlbacher support us in this matter.
Different raw materials are available for the production of cover glasses. In general, two glass types can be distinguished: soda-lime glass – available in neutral white or float glass or toughly colored – and aluminosilicate glass for very thin cover glasses.
We offer many possibilities for cover glass adaptions to our customers
The adequate surface treatment is resulting in optical and haptic properties of the cover glass. Etched glasses for example are suitable for input systems with certain requirements to haptic and anti-reflective properties. Depending on our customer’s preference we offer different variants of etching.
Through edge processing the cover glass can be fitted to your specific product. Most common are two designs. Which fits your purpose usually depends on the material of the housing, the planned the type of sealing and integration.
During glass processing the edges will be cut and grinded. In most cases a small chamfer will be created to avoid sharp edges. The stepped shaped glass is applied, when it has to be mounted from the inside of the housing. This mostly applies when metal housings are used.
The choice of a suitable shape of the cover glass edges doesn’t only depend on aesthetic aspects but also on functionality. The material and planned integration into the housing has to be taken into account. For instance, metal housings require a higher accuracy of the cover glass dimensions and a different glass treatment then housings made of plastics do.