89-668 50 mm Dia. Hard Coated High Performance OD 4.0 Longpass Filter; t=3 mm 1300nm
- Type
- Filter
- Subtype
- Longpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- Cut Off Frequency
- Cut On Frequency
- 1300 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
89-668 50 mm Dia. Hard Coated High Performance OD 4.0 Longpass Filter; t=3 mm 1300nm
The 89-668 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 1300 nm, making it ideal for applications that require the removal of shorter wavelengths.
The filter features a circular shape and is constructed from UVFS Mal-1965 material, ensuring durability and reliability. It is coated on both the front and back with EDM 89-660, enhancing its performance and longevity. The cut-on wavelength is set at 1300 nm, while the cut-off wavelength is 0 nm.
This longpass filter is designed to be used with thin lens systems, making it a versatile option for a variety of optical applications. The catalog number for this item is 89-668, and it is currently in stock. For more information, including pricing and availability, please refer to the provided weblink.