27002 C 25 mm Diameter H-alpha 5nm Bandpass Filter by Chroma

The 27002 C is a 25 mm diameter Bandpass Filter, specifically designed for H-alpha 5nm applications. This filter is sourced from Chroma, a renowned vendor known for their advanced optical elements.

The filter is of the Bandpass type, which means it allows light to pass through a specific range of wavelengths while blocking out other wavelengths. This particular model is designed for H-alpha 5nm, making it ideal for applications that require a narrow bandwidth around this wavelength.

The filter is circular in shape, with a diameter of 25 mm and a thickness of 3.5 mm. This compact size makes it suitable for various applications where space is a constraint. The material ID for this filter is UVFS MAL-1965, indicating its specific composition and manufacturing process.

The physical data of the filter includes a cut-on wavelength of 647.5 nm and a cut-off wavelength of 652.5 nm. The central wavelength (CWL) is 650 nm, which is the peak transmission wavelength for this filter. This precise wavelength control ensures optimal performance in its intended application.

The filter's coating is identical on both the front and back, with the coating identified as 'chr 27002'. This coating likely contributes to the filter's performance, such as its transmission characteristics and durability.

The filter's shape is described as a Thin Lens, suggesting that it may have some light focusing properties. However, this should be confirmed with the vendor or in the filter's technical specifications.