590FDS25 25 mm Dia. Shortpass Dichroic Filter 590nm
- Type
- Filter
- Subtype
- Dichroic Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 590 nm
- Cut On Frequency
- 845 nm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167817367777034
- λ
- 588 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
590FDS25 25 mm Dia. Shortpass Dichroic Filter 590nm
The 590FDS25 is a high-quality dichroic filter, sourced from Knight Optical, designed for shortpass applications with a 590nm cutoff wavelength. This filter is crafted from N-BK7 Schott glass, a material renowned for its excellent optical properties and versatility.
The filter boasts a circular geometry, with a diameter of 25mm and a thickness of 1.1mm, making it suitable for a wide range of optical systems. The 590FDS25 features a thin lens shape, optimized for minimal distortion and maximum light transmission.
The dichroic coating on both the front and back surfaces of the filter is designated as 'kni 590fds-0'. This coating is specifically designed to reflect wavelengths shorter than 590nm while transmitting longer wavelengths, making it ideal for shortpass applications.
The physical data of the filter indicates a cut-on wavelength of 845nm, beyond which the filter begins to transmit light. This, coupled with the 590nm cutoff, provides a wide range of usable wavelengths.
The 590FDS25 is currently in stock and available for immediate purchase from Knight Optical's website. With its robust design, high-quality materials, and precise coating, this filter is an excellent choice for a variety of optical applications.