The 12-255 is a 25 mm diameter Longpass Filter, specifically designed for use with 266nm laser lines. This filter is sourced from Edmund Optics, a reputable vendor known for their high-quality optical components.
The filter is made from UVFS Mal- 1965, a material specifically chosen for its optical properties in the ultraviolet spectrum. It has a base shape of a circle, a common shape for optical filters due to its uniformity and ease of integration into various systems.
The 12-255 filter has a cut-on wavelength of 266nm, meaning it begins to transmit light at this wavelength and beyond. It does not have a specified cut-off wavelength, indicating that it continues to transmit all longer wavelengths. This makes it ideal for applications where a specific wavelength needs to be isolated or where unwanted shorter wavelengths need to be blocked.
The filter has a thickness of 3.5mm, providing sufficient structural integrity for most applications. It is coated on both the front and back with EDM 12-255, a proprietary coating developed by Edmund Optics for enhanced performance and durability.
The filter's geometry is that of a thin lens, suggesting it may have some light-bending properties. However, without more specific information, it's difficult to quantify these properties.
In terms of availability, the filter's weblink status is "Valid - in stock", indicating that it is readily available for purchase and delivery. This makes it an ideal choice for researchers and engineers who need a reliable and readily available optical component for their projects.