The 20CGA-295 is a Longpass Filter from MKS/Newport, a renowned vendor in the optical industry. This filter is specifically designed with a 2 x 2 in square shape, making it suitable for various optical applications. The filter has a thickness of 1.1 mm, providing durability and stability in its setup.
The filter's primary function is to allow light transmission above a certain wavelength while blocking lower wavelengths. In this case, the 20CGA-295 has a cut-on wavelength of 295 nm, meaning it starts to transmit light at this wavelength and beyond. The cut-off wavelength is 0 nm, indicating that it blocks all wavelengths below 295 nm. This characteristic makes it an ideal choice for applications that require the blocking of shorter wavelengths.
The filter is made of UVFS Mal-1965, a material known for its optical properties. It features a Thin Lens shape, which can be beneficial in certain optical configurations. The coating on both the front and back surfaces is 'new 20cga-295', which could contribute to its performance and durability.
The 20CGA-295 is currently in stock and can be purchased directly from the vendor's website. For more information, you can refer to the provided weblink.