NE502A Dia. 0.5 in Absorptive ND Filter; SM05-Threaded Mount; Optical Density 0.2
- Type
- Filter
- Subtype
- Neutral Density Filter
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.7 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
NE502A Dia. 0.5 in Absorptive ND Filter; SM05-Threaded Mount; Optical Density 0.2
The NE502A is a Neutral Density (ND) Filter, offered by Thorlabs, with a catalog number NE502A. This filter is designed to reduce the intensity of incident light without altering its color composition. The NE502A is specifically engineered for use with a wavelength of 633 nanometers.
This circular filter boasts a diameter of 12.7 millimeters and a thickness of 1.4 millimeters, making it compatible with SM05-threaded mounts. The filter's material is made of n-bk7 schott, a high-quality glass known for its excellent optical properties.
The NE502A is coated with tho ne02a on both the front and back surfaces, contributing to its absorptive properties. This coating helps to achieve an optical density of 0.2, further reducing the intensity of the incident light.
The filter's shape is designed in a Thin Lens format, which is beneficial for maintaining the optical path's integrity and minimizing aberrations. The NE502A is currently in stock and available for purchase through the vendor's website, with the weblink provided in the item data for convenience.
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