FR-RG715 12.7 mm Dia. Colored Glass Absorptive Longpass Filter 715nm

The FR-RG715 is a Longpass Filter, specifically designed for use in optical systems that require infrared light absorption. This filter, sourced from MKS/Newport, is characterized by its circular shape and thin lens design, making it an ideal choice for a wide range of applications.

The filter has a diameter of 12.7 mm and a thickness of 3 mm, ensuring durability and stability in its operation. The base shape is circular, which is a common choice for applications that require uniformity in the light path. The filter is made from UVFS Mal-1965, a material known for its excellent optical properties.

The FR-RG715 has a cut-on wavelength of 715 nm, meaning it begins to transmit light at this wavelength and above. The cut-off wavelength is 0 nm, indicating that it completely absorbs wavelengths below 715 nm. This makes it an effective tool for blocking unwanted shorter wavelengths and passing longer wavelengths.

The filter's coating is another notable feature. Both the front and back surfaces are coated with New RG715, a coating that enhances the filter's performance and longevity. The coating ensures that the filter maintains its optical properties even after prolonged use.