Eureca offers the service to supply customized shapes of coloured optical filters. By using an own inhouse laser cutting machine nearly all dimensions can be realized in all volumes.
We use the Solaris-S material by PSC, which offers a virtually endless range of transparent coloured optical filters. These filters can be used in a variety of applications as e.g. lightings, contrast enhancement, colour conversion or colour correction in displays using for example VFD, LCD or LED technology. Due to the high quality of the surface the filters can also be used for camera applications.
Broad-band filters are basically gray-shaded filters which allow for the transmittance of all light (colours). They are therefore often used in applications in which contrast enhancement is required without loss of the full colour spectrum. Selective filters are designed to only transmit specific wavelengths of the light, i.e. specific colours. Selective filters are especially suitable for applications requiring colour correction and contrast enhancement of monochrome displays.
All Solaris S grades contain UV-absorbing material, blocking efficiently up to approx. 400 nm. For OEM projects PSC offers an extensive range of colour matching services. Using proprietary computer based C&L simulation software, PSC can calculate and create coloured filters and colour conversion filters meeting almost any customer specified colour or chromacity target.
In addition to the filter materials PSC offers also various surface treatments for polymer materials to be used in OEM projects with higher volumes. The surface treatments can overall be categorised in three headlines: Anti-reflection, Clear hard coats, and Non-glare. Contact us to learn more about the possibilities of surface treatments to improve the specifications of a suitable filter.
|Anti-Reflection (AR) for displays and lightings
The AR coating works by applying series of very thin layers of metal and mineral oxides in a vacuum deposition process. By careful design of these layers, light hitting the surface will not be reflected but transmitted through the material, resulting in an improvement of clarity and light transmissions, and total reduction of unwanted reflections.
|Anti-Reflection (AR) for scanners & cameras
The spectral properties of anti reflective coatings for display applications are optimised for the wavelengths visible to the human eye. However, most machine vision applications only benefit from specific wavelengths within the VIS range (red), or longer wavelengths than those of visible light (NIR).
|Clear Hard Coats
A Clear Hard Coat is a clear, virtually invisible, and very hard surface treatment. The flawless optical quality makes it an ideal choice for applications requiring maximum light transmittance combined with a scratch resistant surface. It is often used for applications with high resolution LCD colour displays or any other application in which protection of the surface is the first priority.
Fine Mat is especially developed to produce a mat, exclusive looking surface for elimination of reflections and perfect optical performance. The gloss level can be adjusted to fit the specific requirements of the application. The coating process creates a unique surface structure consisting of lens-shaped micro-particles. These micro-particles block most of the ambient light from reaching the display without influencing the signal transmitted from the display.
Listed below are the relative transmittances of the available filter materials. The filters can be supplied in several thicknesses from 0.5mm to 3mm with dimensions up to 2000 x 3000 mm. Please contact us if you should have interest in customized filter cuttings. For preparing a detailed quotation we need to know the the prefered material type, the needed volumes as well as the detailed shape (e.g. as DFX file).