638 US LPF-12.5 12.5 mm Dia. Mounted Ultra-Steep Longpass Filter; t=3mm 638nm
- Type
- Filter
- Subtype
- Longpass Filter
- Brand
- Iridian Spectral Technologies
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- Cut Off Frequency
- Cut On Frequency
- 638 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.458448271212196
- λ
- 588 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
638 US LPF-12.5 12.5 mm Dia. Mounted Ultra-Steep Longpass Filter; t=3mm 638nm
The 638 US LPF-12.5 is a Longpass Filter, a type of optical element designed to transmit light with wavelengths longer than a specified value, while blocking shorter wavelengths. This particular model, sourced from Iridian Spectral Technologies, has a catalog number of 638 US LPF and is available for purchase on their official website.
The filter boasts a circular shape with a diameter of 12.5 mm and a thickness of 3 mm, making it suitable for a wide range of optical applications. It is made from UVFS Mal-1965, a material known for its optical properties and durability.
The 638 US LPF-12.5 features a cut-on wavelength of 638 nm, meaning it starts to transmit light at this wavelength. The cut-off wavelength, which is the point at which the filter starts to block light, is 0 nm in this case. This ultra-steep longpass characteristic makes it an ideal choice for applications requiring sharp cut-off characteristics.
Both the front and back surfaces of the filter are coated with IRR 638-US-LPF, a coating that enhances the filter's performance and longevity. The filter's shape is that of a thin lens, further expanding its potential uses in various optical systems.
For more detailed information, including current stock status and pricing, please refer to the vendor's website using the provided weblink.
