39-380 50 mm Dia. Hard Coated OD 4.0 5nm Bandpass Filter; t=3.5 mm 785nm

The 39-380 is a Bandpass Filter, specifically designed for use in optical systems that require a narrow bandwidth of light centered around 785nm. This filter, sourced from Edmund Optics, boasts a 50mm diameter and a thickness of 3.5mm, making it suitable for a wide range of applications.

The filter is made from UVFS Mal-1965, a material known for its optical properties. It features hard coating on both the front and back surfaces, denoted as 'edm 39-334', which enhances its durability and resistance to wear and tear.

The 39-380 has a cut-on wavelength of 782.5nm and a cut-off wavelength of 787.5nm, ensuring a tight bandpass around the central wavelength. This is further emphasized by the filter's Cut-On Wavelength (CWL) of 785nm, which is the wavelength at which the filter's transmission is at its maximum.

The filter's geometry, with a diameter of 50mm and a thickness of 3.5mm, allows it to be used in various optical setups. The circular shape and thin lens design ensure easy integration into existing systems.

The filter's current status is 'in stock', as indicated by its weblink, which is valid and leads to the product page on the Edmund Optics website. This information is subject to change, so it's recommended to check the weblink for the most up-to-date status.