87-865 25 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 1275nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 1300 nm
- Cut On Frequency
- 1250 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4472003400571432
- λ
- 1275 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
87-865 25 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 1275nm
The 87-865 is a Bandpass Filter, specifically designed for use in optical systems requiring a narrow passband. Sourced from Edmund Optics, this filter features a circular shape with a 25 mm diameter and a thickness of 3.5 mm, making it compatible with a wide range of optical setups.
The filter is made from UVFS Mal-1965, a material known for its excellent optical properties. It is designed to pass light in the 1275 nm range, with a Cut-On wavelength of 1250 nm and a Cut-Off wavelength of 1300 nm. This precise wavelength control makes it ideal for applications that require narrowband filtering.
The 87-865 is hard coated on both the front and back surfaces with EDM 87-852, a coating that enhances the filter's durability and performance. This coating helps to protect the filter from environmental hazards and ensures consistent optical performance over time.
The filter's Thin Lens shape allows it to be easily integrated into various optical systems. It is currently in stock and available for immediate use. For more information, please refer to the provided weblink.