89-667 50 mm Dia. Hard Coated High Performance OD 4.0 Longpass Filter; t=3 mm 1250nm
- Type
- Filter
- Subtype
- Longpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- Cut Off Frequency
- Cut On Frequency
- 1250 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
89-667 50 mm Dia. Hard Coated High Performance OD 4.0 Longpass Filter; t=3 mm 1250nm
The 89-667 is a high-performance longpass filter, boasting a 50 mm diameter and a thickness of 3 mm. This filter, sourced from Edmund Optics, is designed to transmit light with wavelengths above 1250 nm, while blocking shorter wavelengths. This feature makes it ideal for applications that require the isolation of specific wavelength ranges.
The filter is constructed from UVFS Mal-1965, a material known for its optical properties. It features a thin lens shape, which contributes to its compact design and ease of integration into optical systems. The front and back surfaces of the filter are coated with EDM 89-659, a coating that enhances the filter's performance and durability.
The 89-667 filter is available for purchase through the Edmund Optics website, where it is listed as in stock. Detailed product information, including technical specifications and performance data, can be found at https://www.edmundoptics.com/p/1250nm-500mm-dia-high-performance-longpass-filter/32126/.