This is a 34-505 Bandpass Filter, offered by Edmund Optics, with a diameter of 12.5 mm and a thickness of 3.5 mm. The filter is designed to transmit light within a specific range of wavelengths, centered around 505 nm, while blocking other wavelengths. The cut-on wavelength is 500 nm, and the cut-off wavelength is 510 nm, providing a 10 nm bandpass.
The filter is hard coated on both the front and back surfaces with the EDM 34-505 coating. This coating enhances the filter's durability and performance. The filter's base shape is circular, and it has a Thin Lens shape.
The catalog number for this filter is 34-505, and it is currently in stock. You can find more information about this product, including pricing and availability, on the Edmund Optics website using the provided weblink.