The 14-469 is a 50 x 50 mm SCHOTT N-WG320 Colored Glass Longpass Filter, designed to transmit light with wavelengths longer than 320nm. This filter is sourced from Edmund Optics, a reputable vendor known for its high-quality optical components.
The filter is made of color glass, a type of optical glass that exhibits strong absorption or reflection of specific wavelengths, making it ideal for applications requiring wavelength selectivity. The base shape of the filter is rectangular, ensuring efficient light transmission and minimal scattering.
The filter has a thickness of 1mm, providing robustness and durability. It features a thin lens shape, which is advantageous in applications where space is a constraint. The physical data of the filter indicates a cut-on wavelength of 320nm, meaning it starts transmitting light from this wavelength and beyond.
The filter's coating, denoted as 'edm 14-469' on both the front and back, enhances its performance by reducing surface reflections and increasing transmission. This coating also provides protection against environmental factors, ensuring the filter maintains its performance over time.