65-168 25 mm Dia. Hard Coated OD 4.0 10nm Bandpass Filter; t=3.5 mm 640nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 645 nm
- Cut On Frequency
- 635 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4568118189984216
- λ
- 640 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
65-168 25 mm Dia. Hard Coated OD 4.0 10nm Bandpass Filter; t=3.5 mm 640nm
The 65-168 is a Bandpass Filter with a diameter of 25 mm, sourced from the reputable optical components vendor, Edmund Optics. This filter is specifically designed for use with a central wavelength of 640nm, making it suitable for applications that require precise wavelength selection within this range.
The filter is constructed with a thickness of 3.5 mm, providing durability and stability during operation. It features hard coating on both the front and back surfaces, denoted as 'edm 65-107', which enhances its resistance to wear and tear, thereby extending its lifespan.
The Bandpass Filter's physical data includes a cut-on wavelength of 635nm and a cut-off wavelength of 645nm. This indicates that the filter allows transmission of light within this narrow range, effectively blocking out unwanted wavelengths. The central wavelength (CWL) of the filter is 640nm, which is the wavelength at which the filter has its maximum transmittance.
The filter is designed in a Thin Lens shape, which is a common configuration for optical components due to its ease of integration into various optical systems. The filter's geometry, including its diameter and thickness, is carefully controlled during manufacturing to ensure precise optical performance.
