86-663 25 mm Dia. Hard Coated OD 4.0 25nm Bandpass Filter; t=3.5 mm 950nm

The 86-663 is a Bandpass Filter, specifically designed for use in optical systems requiring a narrow wavelength transmission range. Sourced from Edmund Optics, this filter boasts a 25 mm diameter and a thickness of 3.5 mm, making it suitable for a wide range of applications.

The filter is designed to transmit light within the 950 nm wavelength range, with a Cut-On wavelength of 937.5 nm and a Cut-Off wavelength of 962.5 nm. This precise wavelength selection is achieved through the use of a Hard Coating on both the front and back surfaces, which is identified as EDM 86-651. This coating enhances the filter's durability and resistance to environmental factors, ensuring reliable performance over time.

The filter's geometry is defined by its circular shape and thin lens design. The circular shape is a common choice in optical systems due to its ease of alignment and integration. The thin lens design, on the other hand, reduces the overall weight and complexity of the optical system, making it an ideal choice for compact and lightweight applications.

The filter's physical data, including its Cut-On, Cut-Off, and Central Wavelength (CWL) of 950 nm, are all precisely controlled during the manufacturing process. This ensures that the filter provides consistent and reliable performance in your optical system.