FELH0600 Dia:25.0 mm Premium Longpass Filter; Cut-On Wavelength: 600nm

The FELH0600 is a high-quality longpass filter, manufactured by Thorlabs, a leading vendor in the optical industry. This filter is designed with a circular shape, featuring a diameter of 25.0 mm and a thickness of 3.5 mm, making it compatible with a wide range of optical systems.

The filter's primary function is to allow light with wavelengths greater than or equal to 600 nm to pass through while blocking shorter wavelengths. This is referred to as the 'cut-on' wavelength, which is a key specification for longpass filters. The 'cut off' wavelength, on the other hand, is 0 nm for this filter, indicating that it blocks all wavelengths shorter than its 'cut-on' value.

The FELH0600 filter is made from UVFS material, specifically identified as 'mal- 1965'. It features a thin lens shape and is coated on both the front and back with the 'tho felh0600' coating. This coating enhances the filter's performance and durability, ensuring reliable operation in various optical applications.

According to the vendor's information, this item is currently in stock and can be purchased directly from Thorlabs' website using the provided catalog number. The link to the product page is provided in the item data for your convenience.