FR-BG40 12.7 mm Dia. Colored Glass Absorptive Bandpass Filter 495nm

The FR-BG40 is a high-quality bandpass filter, specifically designed for use in optical systems that require precise wavelength selection. This filter, sourced from the reputable vendor MKS/Newport, boasts a catalog number of FR-BG40 and is available for purchase directly from their website. The current status indicates that it is in stock, ensuring quick delivery for your optical project needs.

The filter is of the bandpass type, which means it allows transmission of light within a specific range of wavelengths while blocking light outside this range. The central wavelength (CWL) of this filter is 495nm, making it ideal for applications that require the isolation of light in this region of the spectrum.

The FR-BG40 filter is made from a circular piece of colored glass, with a diameter of 12.7mm and a thickness of 3mm. This robust construction ensures durability and stability within your optical setup. The filter's design is based on a thin lens shape, which can be beneficial in certain optical configurations.

The filter's physical data includes a cut-on wavelength of 365nm and a cut-off wavelength of 625nm. This means that it begins to transmit light at 365nm and stops transmitting at 625nm, effectively isolating the 495nm region.

The filter's front and back surfaces are coated with the New FSR-BG40 coating, which is specifically designed to enhance the filter's performance and durability. This coating ensures optimal transmission of light within the specified wavelength range and provides protection against environmental factors that could potentially degrade the filter's performance over time.