87-240 25 mm Dia. Hard Coated Dual-Band Fluorescence Bandpass Filter; t=2 mm 433/530nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 452 nm
- Cut On Frequency
- 414 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.466932003470982
- λ
- 433 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
87-240 25 mm Dia. Hard Coated Dual-Band Fluorescence Bandpass Filter; t=2 mm 433/530nm
The 87-240 is a 25 mm diameter Dual-Band Fluorescence Bandpass Filter, designed and manufactured by Edmund Optics. This filter is specifically engineered for applications that require precise wavelength selection, making it ideal for use in fluorescence microscopy, spectroscopy, and other optical systems where control over light transmission is crucial.
The filter features a unique dual-band design, centered at 433nm and 530nm, allowing it to transmit light within these specific wavelength ranges while effectively blocking unwanted spectral components. This dual-band transmission characteristic is particularly useful in fluorescence applications, where multiple fluorophores with distinct emission spectra are often used simultaneously.
The 87-240 filter is constructed from UVFS MAL-1965 material, a high-quality optical glass known for its excellent transmission characteristics and durability. The filter has a thickness of 2mm, providing robustness and stability in optical systems. The circular geometry of the filter, with a 25mm diameter, ensures easy integration into various optical setups.
The filter's coating is another notable feature. Both the front and back surfaces are hard-coated with EDM 87-232, a proprietary coating developed by Edmund Optics. This coating enhances the filter's performance by reducing surface reflections and improving transmission efficiency. It also provides excellent environmental stability, ensuring the filter maintains its performance characteristics over time.
In terms of physical data, the filter's cut-on wavelength is 414nm, and the cut-off wavelength is 452nm. The central wavelength (CWL) is 433nm, which is one of the filter's transmission peaks. This precise control over wavelength transmission makes the 87-240 an excellent choice for applications that demand high spectral purity.
The 87-240 filter is currently in stock and available for immediate purchase from the Edmund Optics website. With its robust design, high-quality materials, and precise wavelength control, this filter is a valuable addition to any optical system that requires dual-band fluorescence filtering.