4.26GA05-25 25mm Dia. 4260nm Sapphire Standard IR Bandpass Filter, HBW 120nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Andover Corporation
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 4320 nm
- Cut On Frequency
- 4200 nm
Material
- Name
- Sapphire
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6634138279577813
- λ
- 4260 nm
- B1
- 1.4313493
- C1
- 0.005279926 μm2
- B2
- 0.65054713
- C2
- 0.014238265 μm2
- B3
- 5.3414021
- C3
- 325.0178341 μm2
4.26GA05-25 25mm Dia. 4260nm Sapphire Standard IR Bandpass Filter, HBW 120nm
The 4.26GA05-25 is a 25mm diameter Bandpass Filter, specifically designed for Infrared (IR) applications. This filter is sourced from the Andover Corporation, a renowned vendor in the optical industry. The filter is made of high-quality Sapphire (Al2O3), a material known for its excellent optical properties and durability.
The filter's primary function is to allow light in a specific wavelength range to pass through while blocking other wavelengths. In this case, the 4.26GA05-25 is designed to pass light in the 4260nm range, with a Half Bandwidth Width (HBW) of 120nm. This makes it ideal for applications that require the use of specific IR wavelengths.
The filter's geometry includes a diameter of 25mm and a thickness of 1mm, making it suitable for various optical systems. The cut-on wavelength is 4200nm, and the cut-off wavelength is 4320nm, further emphasizing its specificity to the 4260nm range.
The 4.26GA05-25 features a Thin Lens shape and is coated on both the front and back with the Andover Corporation's proprietary coating, enhancing its performance and durability. The filter is currently in stock and available for purchase through the Andover Corporation's website.