The 67-286 Shortpass Filter, offered by Edmund Optics, is a circular filter with a diameter of 12.5 mm and a thickness of 1.5 mm. This filter is designed to transmit light with wavelengths shorter than 1175 nm while blocking light with longer wavelengths. The cut-off wavelength, which is the point at which the filter begins to block light, is 1175 nm. The filter does not have a cut-on wavelength, which is the point at which the filter starts to transmit light.
This filter is made from UVFS Mal-1965, a material specifically designed for optical applications. The filter features traditional coatings on both the front and back surfaces, identified as EDM 67-286. These coatings are designed to enhance the filter's performance and durability.
The filter is shaped as a thin lens, which is a type of lens with a very small thickness compared to its diameter. This shape allows the filter to be easily integrated into optical systems. The filter's catalog number is 67-286, and it is currently in stock. More information about this filter, including purchasing options, can be found on the Edmund Optics website.