87-790 25 mm Dia. Hard Coated OD 4.0 25nm Bandpass Filter; t=3.5 mm 575nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 587.5 nm
- Cut On Frequency
- 562.5 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.458919090594458
- λ
- 575 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
87-790 25 mm Dia. Hard Coated OD 4.0 25nm Bandpass Filter; t=3.5 mm 575nm
The 87-790 is a Bandpass Filter with a 25 mm diameter, manufactured by Edmund Optics. This filter is specifically designed for use with a center wavelength (CWL) of 575nm, making it suitable for applications that require precise wavelength selection. The filter features a hard coating on both the front and back surfaces, ensuring durability and resistance to wear and tear.
The filter's geometry includes a diameter of 25mm and a thickness of 3.5mm, providing a robust and compact design. The cut-on wavelength is 562.5nm, and the cut-off wavelength is 587.5nm, indicating a narrow bandwidth that aids in the rejection of unwanted wavelengths.
The 87-790 filter is made from UVFS Mal-1965 material, a common choice for optical filters due to its excellent transmission characteristics and stability. The filter's shape is that of a thin lens, further enhancing its functionality and versatility.
The filter's coating, EDM 87-778, is applied to both the front and back surfaces, contributing to its overall performance and durability. This coating helps to reduce surface reflections and increase transmission, making the filter ideal for use in high-precision optical systems.