69-890 25 mm Dia. Dichroic Longpass Filter; t=1.05mm 600nm
- Type
- Filter
- Subtype
- Dichroic Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- Cut On Frequency
- 600 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
69-890 25 mm Dia. Dichroic Longpass Filter; t=1.05mm 600nm
The 69-890 is a 25 mm diameter Dichroic Longpass Filter, manufactured by Edmund Optics. This filter is designed with a thickness of 1.05mm and features a cut-on wavelength of 600nm. The dichroic filter is specifically designed to reflect or transmit light depending on its wavelength, making it an essential component in various optical systems.
The filter's geometry includes a 25mm diameter, providing a wide area for light transmission. The thickness of 1.05mm ensures durability and stability in the optical system. The physical data indicates that the cut-on wavelength is 600nm, meaning it starts to transmit light from this wavelength and beyond. The cut-off wavelength is 0, indicating that it will transmit all wavelengths longer than the cut-on wavelength.
The coating of the filter is identical on both sides, with the front and back coated with EDM 69-868. This coating enhances the filter's performance, ensuring efficient light transmission or reflection as per its design. The filter's shape is that of a thin lens, which is common in optical systems due to its minimal thickness and weight.
For more information, you can refer to the vendor's website at https://www.edmundoptics.com/p/600nm-25mm-diameter-dichroic-longpass-filter/24156/. The link is currently valid and indicates that the filter is in stock.
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