FND-15C02-10 15 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm

OptoSigma's FND-15C02-10 is a high-quality Neutral Density Filter, designed for use in the visible light spectrum, specifically between 400-700nm. This unmounted filter boasts a circular shape with a 15mm diameter and a thickness of 2mm, making it a versatile choice for various optical applications.

The filter is made from N-BK7, a type of borosilicate glass manufactured by Schott AG, known for its excellent optical properties. This material ensures high transmittance and low absorption across the visible spectrum, making it an ideal choice for applications requiring precise light control.

The filter features a reflective coating on both the front and back surfaces, identified as 'opt fnd-10'. This coating is designed to provide a neutral density effect, reducing the intensity of light without altering its color balance. The coating is thin and evenly applied, ensuring minimal impact on the overall optical path.

The FND-15C02-10 is shaped as a Thin Lens, a designation that indicates its curved surfaces are designed to bend light rays. This feature can be beneficial in certain applications where light needs to be focused or dispersed.

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