MidOpt LP590-25.5 Red Longpass Optical Filter
The MidOpt LP590-25.5 is a red longpass optical filter designed to enhance imaging performance by transmitting red and near-infrared (NIR) wavelengths while effectively blocking ultraviolet (UV) and shorter visible light. This filter is particularly beneficial in applications requiring increased contrast and resolution when using monochrome cameras.
Key Features
- Wavelength Range: Transmits light from 605 nm to 1100 nm, ensuring optimal passage of red and NIR wavelengths.
- Cut-On Wavelength: Exhibits a 50% transmission at 590 nm, with a tolerance of ±10 nm.
- High Transmission Efficiency: Achieves a peak transmission of ≥90%, allowing for maximum light throughput in the desired spectrum.
- Superior Surface Quality: Manufactured with a surface quality rating of 40/20, ensuring minimal optical imperfections and high image clarity.
- StablEDGE® Technology: Incorporates MidOpt’s proprietary StablEDGE® design, providing consistent and reliable performance across the specified wavelength range.
Technical Specifications
- Filter Type: Red Longpass
- Filter Size: 25.5 mm diameter with M25.5×0.5 thread
- Outer Diameter: 29 mm
- Clear Aperture: 22.5 mm
- Overall Thickness: 7 mm
- Exposed Thickness: 5.2 mm
Applications
The LP590-25.5 filter is ideal for machine vision systems, fluorescence imaging, and other industrial imaging applications where selective transmission of red and NIR wavelengths is crucial. By blocking shorter wavelengths, it enhances image contrast and detail, making it a valuable component in precision imaging setups.
Additional Information
For applications requiring the blocking of longer IR wavelengths, consider using the MidOpt BP635 Bandpass Filter. This alternative helps prevent the transmission of longer IR wavelengths, which can lead to decreased contrast in certain imaging scenarios.
The LP590-25.5 filter is part of MidOpt’s extensive range of optical filters, known for their quality and reliability in demanding imaging environments.
