NE04B-B Dia. 25 mm AR-Coated Absorptive Neutral Density Filter; 650-1050nm; OD 0.4 AR 650-1050nm

The NE04B-B is a Neutral Density Filter with a diameter of 25 mm, designed for use within the wavelength range of 633 nm. Manufactured by Thorlabs, a leading vendor in the optical components industry, this filter is part of the extensive catalog of optical elements available at 3DOptix.

This absorptive neutral density filter is characterized by its Optical Density (OD) of 0.4, which is a measure of the filter's ability to reduce the intensity of incident light without altering its color. The NE04B-B filter is specifically designed for use within the spectral range of 650-1050 nm, making it suitable for a wide range of applications within this wavelength range.

The filter features Anti-Reflection (AR) coatings on both the front and back surfaces, further enhancing its performance. These coatings are optimized for the 650-1050 nm range, ensuring minimal reflection and loss of light due to internal reflections. The thickness of the filter is 0.7 mm, and it has a circular shape, which is a common form factor in optical components due to its ease of integration and alignment.

The NE04B-B filter is designed with a Thin Lens shape, which is a particular curvature applied to the filter's surface. This shape can influence the filter's optical properties, such as its focusing power or chromatic aberration.

For more information, including pricing and availability, users are encouraged to visit the product webpage linked in the item data.