NE50A-A Dia. 25 mm AR-Coated Absorptive Neutral Density Filter; SM1-Threaded Mount; 350-700nm; OD 5.0 AR 350-700nm
- Type
- Filter
- Subtype
- Neutral Density Filter
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25 mm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4570121244558207
- λ
- 633 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
NE50A-A Dia. 25 mm AR-Coated Absorptive Neutral Density Filter; SM1-Threaded Mount; 350-700nm; OD 5.0 AR 350-700nm
The NE50A-A is a Neutral Density Filter, specifically designed for use in the optical spectrum, with a diameter of 25 mm and a thickness of 3.6 mm. Manufactured by Thorlabs, a leading global supplier of photonics equipment, this filter is part of their extensive catalog of optical elements. The NE50A-A is a circular filter, featuring an SM1-threaded mount, making it compatible with various optical systems.
This filter is designed to attenuate light while maintaining color neutrality, making it ideal for applications where light intensity needs to be reduced without altering the color composition. The NE50A-A boasts an Optical Density (OD) of 5.0, which means it reduces the light intensity by a factor of 100,000.
The filter's coating is another notable feature. Both the front and back surfaces are AR-coated for the 350-700nm wavelength range, which minimizes reflection and enhances transmission. This coating ensures optimal performance in a wide range of applications, from UV to visible light.