The performance of Absorption Filters is influenced by the thickness of the material itself. Consequently the design of any system utilising such filters is limited to thicknesses which fulfil the specification. This performance requirement may not be possible whatever the thickness with Shortpass and Bandpass Filters. In addition Glass Absorption filters are not fully RoHS […]
Envin offer Resin Absorption Filters which compliment the range of Glass Filters and offer advantages such as unique performance criteria, weight and cost. The main types of Filter are:- Visible Blue & Green Bandpass Visible Yellow, Amber & Red Longpass Infrared Pass/Visible block (see also Dichroic Alternative Filters). Neutral Density. These are available in a […]
Envin offer Laminated Absorption Filters which compliment the range of Glass & Resin Absorption Filters. Many unique performance characteristics can be designed and manufactured. The possible functions which may be included in this type of Filter include: Combinations of Glass Absorption Filters using Optical cements. Combinations of Resin & Glass Absorption Filters. Incorporation of Gel […]
Glass absorption filters make use of the physical characteristics of different types of glass to absorb unwanted wavelengths of light and pass only the desired frequencies through as output. They have numerous different applications, for example transmitting specific colours of visible light, attenuating all wavelengths equally, absorbing ultraviolet (UV) light or removing infrared (IR) wavelengths […]
