NDW13B Dia. 25 mm Reflective ND Filter; Optical Density 1.3
- Type
- Filter
- Subtype
- Neutral Density Filter
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5150823520020043
- λ
- 633 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
NDW13B Dia. 25 mm Reflective ND Filter; Optical Density 1.3
The NDW13B is a Neutral Density Filter with a diameter of 25 mm, manufactured by Thorlabs. This filter is designed to reduce the intensity of incident light without altering its color composition, making it an ideal tool for various optical applications.
The filter features a uniform coating of NDW13B on both the front and back surfaces, which provides an Optical Density of 1.3. This means it reduces the light intensity by a factor of 20, offering versatility in managing light levels.
The filter is made of N-BK7 Schott glass, a high-quality material known for its excellent optical properties. The thin lens shape of the filter ensures minimal distortion, making it suitable for precision optical systems.
For more information, including pricing and availability, please refer to the vendor's website at https://www.thorlabs.com/thorproduct.cfm?partnumber=NDW13B. The link has been verified and indicates the product is currently in stock.