Coloured-Glass Alternative Filters Are Durable

Newport has introduced a series of coloured-glass alternative filters said to offer good durability in any environment. The product line offers 34 longwave-pass thin-film filters in four standard sizes to provide equivalent-to-superior spectral performance when compared with industry standard coloured-glass filters.

The alternative filters are said to be ideal for applications where steep transitions from blocking to high transmission are required. Newport's alternative filters do not contain any hazardous substances such as cadmium or lead, making them fully RoHS compliant. The company said that the filters have been developed to address the needs of its OEM customers. Newport added that its Stabilife coating technology produces thin film coatings that are durable even under harsh environmental conditions.

The coloured-glass alternative filters are said to be ideal for applications in spectroscopy, optoelectronics, environmental monitoring, immunodiagnostic testing and DNA analysis. The filters have been tested per ISO8424 and have high stain resistance (SR1 rating >100 hours' exposure to 0.5M/1 HNO3). Newport claimed that good performance has also been achieved under rigorous testing conditions, including humidity exposure, extreme temperature, abrasion and water solubility.

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