65-178 25 mm Dia. Hard Coated OD 4.0 10nm Bandpass Filter; t=3.5 mm 780nm

The 65-178 is a Bandpass Filter with a diameter of 25 mm, sourced from the renowned optical components vendor, Edmund Optics. This filter is specifically designed for a central wavelength of 780nm, making it ideal for applications that require narrowband transmission in this spectral region.

The filter is hard coated with a coating ID of UVFS MAL-1965, which is applied on both the front and back surfaces. This coating enhances the filter's durability and resistance to environmental factors, ensuring reliable performance over time.

The 65-178 filter has a thickness of 3.5 mm and a circular shape. It is designed to pass light within a specific range of wavelengths (775nm to 785nm) while blocking light outside this range. This feature is crucial in applications where stray light or unwanted spectral components need to be minimized.

The filter's physical data, including the cut-on wavelength at 775nm and the cut-off wavelength at 785nm, are precisely controlled during manufacturing. This ensures that the filter provides the desired spectral performance, making it a reliable choice for various optical systems.

In terms of geometry, the filter has a diameter of 25 mm, which is a common size for many optical components. This makes it compatible with a wide range of optical systems and facilitates integration into existing setups.

The filter's coating, edm 65-117, is applied on both the front and back surfaces, providing protection and enhancing the filter's performance. The filter's shape is defined as a Thin Lens, indicating its potential use in lens systems.