NE20A Dia. 25 mm Absorptive ND Filter; SM1-Threaded Mount; Optical Density 2.0
- 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
NE20A Dia. 25 mm Absorptive ND Filter; SM1-Threaded Mount; Optical Density 2.0
The NE20A is a Neutral Density Filter with a diameter of 25 mm, designed for use with optical systems that require light absorption. Manufactured by Thorlabs, a leading vendor in the field of optical components, this filter is made of n-BK7 Schott material, ensuring high-quality performance and durability.
The filter features a Thin Lens shape, which is beneficial for applications where space is a constraint. It has a thickness of 1.4 mm, providing a compact solution without compromising on optical performance. The front and back of the filter are coated with tho ne20a, a specialized coating that enhances its light absorption capabilities.
The NE20A filter is SM1-threaded, allowing it to be easily integrated into existing optical systems. It is designed to work optimally at a wavelength of 633 nm. The information provided is valid and the filter is currently in stock, making it readily available for immediate use.
