The 14-477 is a 50 x 50 mm SCHOTT GG400 Colored Glass Longpass Filter, designed to cut on at 400nm and with a thickness of 3mm. This filter is sourced from Edmund Optics, a leading vendor in the optical industry, and is available for purchase through their website, where it is currently listed as in stock.
The filter is a Color Glass type, featuring a rectangular base shape and a thin lens geometry. The material ID for this item is UVFS MAL-1965. The wavelength for this filter is 588nm, and it comes with front and back coatings of EDM 14-477.
The physical data for this filter indicates that it is designed to cut on at 400nm, with no specified cut off. This makes it ideal for applications where longpass filtering is required, particularly in the 400nm range.
For more detailed information, please refer to the catalog number 14-477 on the Edmund Optics website. The link provided is valid and directs to the correct product page.