640BP20 25.4 mm Dia. Protected Coating; Bandpass Filter Protected Coating
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Omega Optical
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- Cut Off Frequency
- 650 nm
- Cut On Frequency
- 630 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4568118189984216
- λ
- 640 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
640BP20 25.4 mm Dia. Protected Coating; Bandpass Filter Protected Coating
The 640BP20 is a Bandpass Filter, sourced from the reputable vendor, Omega Optical. This filter, with a catalog number 3794, is currently in stock and available for purchase through the provided weblink: https://www.omegafilters.com/product/3794.
The filter is circular in shape, with a diameter of 25.4 mm and a thickness of 5 mm. It is made from a material identified as UVFS MAL-1965, and features a protected coating on both the front and back. The coating, labeled 'ome 640bp20', is designed to enhance the filter's durability and performance.
The 640BP20 is a Bandpass Filter, specifically designed to allow light in a narrow band of wavelengths to pass through while blocking light at other wavelengths. The cut-on wavelength is 630, and the cut-off wavelength is 650, with the central wavelength (CWL) at 640. This makes the filter ideal for applications that require precise wavelength selection.
The filter is designed in the shape of a thin lens, optimizing its light-manipulating capabilities. This filter is a reliable and efficient choice for applications that demand precise wavelength control and durability.