NE501A Dia. 0.5 in Absorptive ND Filter; SM05-Threaded Mount; Optical Density 0.1
- 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
NE501A Dia. 0.5 in Absorptive ND Filter; SM05-Threaded Mount; Optical Density 0.1
The NE501A is a Neutral Density (ND) Filter from Thorlabs, designed with a circular shape and a diameter of 0.5 inches. This filter is made from n-BK7 Schott material, a high-quality borosilicate glass known for its excellent optical properties. The filter has a thickness of 0.6 mm, making it suitable for a wide range of optical applications.
The NE501A filter features a thin lens shape and is equipped with an SM05-threaded mount for easy integration into optical systems. The front and back of the filter are coated with tho ne01a, a specialized coating that enhances its optical performance. This coating is designed to provide an optical density of 0.1, which means it reduces the intensity of light passing through it by a factor of 1.26.
This filter is ideal for applications that require light intensity reduction while maintaining the color balance of the light. It is commonly used in photography, cinematography, and scientific research where controlling light intensity is crucial. The NE501A is currently in stock and available for purchase through the Thorlabs website.