400FIP0025 25 mm Dia. Precision IR Cut Filter 400-650nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 650 nm
- Cut On Frequency
- 400 nm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.519867814873986
- λ
- 525 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
400FIP0025 25 mm Dia. Precision IR Cut Filter 400-650nm
The 400FIP0025 is a high-precision bandpass filter, specifically designed to transmit light in the 400-650nm wavelength range while blocking infrared (IR) light. This filter is sourced from Knight Optical, a reputable vendor known for their quality optical components.
The filter is circular in shape, with a diameter of 25mm and a thickness of 1.1mm, making it suitable for a wide range of optical applications. It is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and high damage threshold.
The 400FIP0025 features a cut-on wavelength of 400nm and a cut-off wavelength of 650nm, with a central wavelength (CWL) of 525nm. This means it allows light in the blue to orange spectrum to pass through while blocking light in the near-infrared spectrum. The coating on both the front and back surfaces of the filter is KNI 400FIP, which enhances its performance and durability.
The filter has a thin lens shape, which is beneficial for applications where space is limited or where minimal optical path deviation is required. According to the vendor, this item is currently in stock and can be purchased directly from their website.