720FS10-12.5 12.5mm Dia. 720nm Bandpass Filter, HBW 10nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Andover Corporation
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- Cut Off Frequency
- 725 nm
- Cut On Frequency
- 715 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.454850997506831
- λ
- 720 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
720FS10-12.5 12.5mm Dia. 720nm Bandpass Filter, HBW 10nm
The 720FS10-12.5 is a Bandpass Filter offered by Andover Corporation, a leading vendor in the optical industry. This filter, with a catalog number 720FS10-12.5, is specifically designed for applications that require narrowband transmission in the 720nm range.
The filter has a circular base shape with a diameter of 12.5mm, ensuring a wide field of view for various optical systems. It is constructed from UVFS MAL-1965 material, a high-quality optical material known for its excellent transmission characteristics. The filter's thickness is 5.9mm, providing robustness and durability for practical use.
The 720FS10-12.5 filter's coating is another notable feature. Both the front and back surfaces are coated with And 720FS10, a proprietary coating developed by Andover Corporation. This coating enhances the filter's performance by reducing reflection and increasing transmission in the desired wavelength range.
The filter's physical data includes a cut-on wavelength of 715nm and a cut-off wavelength of 725nm, resulting in a high bandwidth (HBW) of 10nm. This narrow bandwidth is crucial for applications that require high spectral purity and rejection of out-of-band light. The central wavelength (CWL) of this filter is 720nm, right at the heart of the near-infrared (NIR) spectrum.