68-651 25 mm Dia. Traditional Coated Infrared (IR) Longpass Filter; t=1mm 1050nm
- Type
- Filter
- Subtype
- Longpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- Cut On Frequency
- 1050 nm
Material
- Name
- Silicon
- Dispersion Equation
- Sellmeier
- n (λ)
- 3.933613268740879
- λ
- 588 nm
- B1
- 10.6684293
- C1
- 0.090912191 μm2
- B2
- 0.003043475
- C2
- 1.287660172 μm2
- B3
- 1.54133408
- C3
- 1218816 μm2
68-651 25 mm Dia. Traditional Coated Infrared (IR) Longpass Filter; t=1mm 1050nm
The 68-651 is a 25 mm diameter Infrared (IR) Longpass Filter, manufactured by Edmund Optics. This filter is designed with a circular base shape and a thin lens form factor, making it suitable for a wide range of optical applications. The filter features a traditional coating on both the front and back surfaces, denoted as 'edm 33-967'.
The primary function of this filter is to allow the transmission of longer wavelengths while blocking shorter wavelengths. The cut-on wavelength for this filter is 1050 nm, indicating that it begins to transmit light at this wavelength and beyond. Conversely, the cut-off wavelength is 0 nm, meaning it blocks all wavelengths shorter than 1050 nm.
The filter's physical dimensions include a diameter of 25 mm and a thickness of 1 mm. The material used in this filter is silicon sal vil 1957. The catalog number for this item is 68-651, and it can be found on the Edmund Optics website, where it is currently in stock.
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