86-987 25 mm Dia. Hard Coated Fluorescence Bandpass Filter; t=2 mm 640nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 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
86-987 25 mm Dia. Hard Coated Fluorescence Bandpass Filter; t=2 mm 640nm
The 86-987 is a Bandpass Filter, specifically designed for Fluorescence applications, available from Edmund Optics. This filter, with a diameter of 25 mm and a thickness of 2 mm, is a circular component made of UVFS material, identified as Mal-1965.
The filter's primary function is to allow light within a specific wavelength range to pass through while blocking other wavelengths. In this case, the Cut-On wavelength is 630nm, and the Cut-Off wavelength is 650nm, with a Center Wavelength (CWL) of 640nm. This means it is designed to pass light most efficiently at the 640nm wavelength.
The 86-987 filter features hard coating on both the front and back surfaces, identified as EDM 86-979. This coating enhances the filter's durability and performance. The filter's shape is that of a Thin Lens, which is often used in optical systems to focus light.
According to the vendor's information, this item is currently in stock and available for purchase. The item's catalog number is 86-987, and it can be found on the Edmund Optics website at https://www.edmundoptics.com/p/640nm-cwl-25mm-dia-14nm-bandwidth-od-6-fluorescence-filter/29399/.