65-639 12.5 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=7.5 mm 520nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- Cut Off Frequency
- 525 nm
- Cut On Frequency
- 515 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4612804077781394
- λ
- 520 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
65-639 12.5 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=7.5 mm 520nm
The 65-639 is a Bandpass Filter, specifically designed and manufactured by Edmund Optics. This filter is circular in shape, with a diameter of 12.5 mm and a thickness of 7.5 mm, making it suitable for a wide range of optical applications. The filter is made from UVFS MAL-1965 material, a common choice for its durability and optical properties.
The 65-639 filter is designed to transmit light in the center wavelength (CWL) of 520nm, with a full width at half maximum (FWHM) of 10nm. This means it allows a narrow band of light around the 520nm wavelength to pass through while blocking other wavelengths. The cut-on wavelength is 515nm, and the cut-off wavelength is 525nm, further emphasizing its bandpass characteristics.
The filter features coatings on both the front and back surfaces, identified as EDM 65-639. These coatings are designed to enhance the filter's performance and durability. The filter's shape is that of a Thin Lens, which can be beneficial in certain optical system configurations.
According to the vendor's information, the 65-639 filter is currently in stock and available for purchase. For more detailed information, including pricing and availability, please refer to the vendor's website using the provided weblink.