Coloured Optical Plastic Filters in Customized Shapes

Eureca supplies customized blanks of plastic-based coloured optical filters. By using an in-house laser cutting machine, almost all dimensions can be realized in all volumes.

We use PSC's Solaris S series materials, which offer a sheer infinite choice of transparent coloured filters. These filters can be used in a variety of applications, including lighting, 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 in camera applications.

Broadband filters are gray-shaded filters that allow for uniform transmission across a wide spectral range. They are therefore often used in applications where a contrast enhancement without loss of full colour spectrum is required. Selective filters are designed so that only certain wavelengths of light, that is, certain colors, are transmitted. Selective filters are therefore particularly suitable for applications that require colour correction and contrast enhancement (for example, monochrome displays).

All Solaris S grades contain UV absorbing material and efficiently block up to approximately 400 nm. For OEM projects, PSC offers a full range of colour matching services. With computer-based simulation software, PSC can calculate colour filters and colour conversion filters for almost any custom colour or chromacity target.

In addition to the filter materials, PSC also offers 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 optimized 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.

Non-glare

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.

Below is the relative transmissions of each available material. The filters can be supplied in different thicknesses in the range between 0.5 mm and 3 mm as well as sizes up to 2,000 mm x 3,000 mm. Please contact us if you are interested in the corresponding blanks. To create a specific offer, we only need to specify the desired material, the number of pieces and the required form (for example as a DXF file).