OCA 25-HTV special contact angle meter

New craft 6: Environmentally friendly electroless nickel plating. Nickel plating in strict accordance with customer requirements,we can control the accurate thickness.

When it comes to a high quality IR Cut filter, it is the substrate with the coating applied that affects the performance. Knight Optical provide high quality wafers for precisely this, and the surface quality of our substrates eliminates blotching at the sensor which occurs on lower quality substrates especially where IR Cut filters are concerned. Our wafers are produced as thin as 500μm & provide exceptional surface quality. However, we can manufacture to a fully customised specification with a wafer thickness as little as 10 μm. Our substrates for stock or custom can be manufactured from a great deal of materials including: •Quartz •Borosilicate •BK7 or equivalent •Sapphire •And many more. Depending on your application for the IR Cut Filter, we can help advise on the best achievable optic for your application. Please read PDF for full specification

We carry out applied research in our own test field and laboratory in order to constantly further develop our products, but also so as to be able to present our customers with innovative new developments. Furthermore, we regularly participate in cooperative projects of the Federal PhysicalTechnical Institute (PTB PhysikalischTechnische Bundesanstalt) with the economy. We also maintain close cooperative links with the universities of DuisburgEssen and Karlsruhe. We would also like to support you in research with our products. Please contact us.

A prerequisite for the adhesion of an adhesive or coating to a surface is wetting. For wetting to take place, the surface energy of the substrate must be greater than that of the coating. In particular, very many plastics have a very small surface energy and are correspondingly difficult to bond. Often the aim of a plasma treatment is to make a surface wettable and bondable. The wettability can easily be tested with test inks. Diener electronic supplies a test ink set with 8 liquids with surface tensions between 30 and 73 (105) mN/m suitable for most practical applications. There is also a set of 23 test inks, with additional gradations between 30 and 73 (105) mN/m.