87-891 12.5 mm Dia. Hard Coated OD 4.0 10nm Bandpass Filter; t=3.5 mm 810nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- Cut Off Frequency
- 815 nm
- Cut On Frequency
- 805 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4531463660371124
- λ
- 810 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
87-891 12.5 mm Dia. Hard Coated OD 4.0 10nm Bandpass Filter; t=3.5 mm 810nm
The 87-891 is a Bandpass Filter with a diameter of 12.5 mm, sourced from the reputable optical components vendor, Edmund Optics. This filter is specifically designed for use with a central wavelength of 810nm, making it suitable for applications that require precise wavelength selection.
The filter boasts a hard coating on both the front and back surfaces, denoted as 'edm 87-891'. This coating enhances the filter's durability, making it resistant to scratches and other forms of damage, thereby ensuring longevity and reliable performance.
The physical data of the filter indicates a cut-on wavelength of 805nm and a cut-off wavelength of 815nm. This 10nm bandpass, combined with the central wavelength, allows for a narrow and precise range of wavelengths to pass through the filter.
The filter's geometry includes a thickness of 3.5 mm, which is crucial for determining the filter's placement and alignment within an optical system. The base shape is circular, a common and versatile shape in optical components.
The filter is made from UVFS Mal-1965, a material known for its optical properties. This material, combined with the filter's design, makes the 87-891 an ideal choice for applications that require precise wavelength control and high-quality optical performance.