Longpass Filter

Overview of Longpass Filter

ATOPTIK ultra-steep longpass filters are engineered to deliver superior optical performance, combining exceptional transmission of longer wavelengths with reliable blocking of shorter ones. Designed with advanced dielectric coatings and precision manufacturing, these filters achieve sharp cutoff transitions, minimal signal loss, and excellent durability, making them ideal for demanding applications such as spectroscopy, imaging, laser systems, and optical communications.

Features of Longpass Filter

• Peak Transmission: >90%, ensuring exceptional light throughput and brightness.

• Wavelength Range: VIS/Near-IR for flexible use across a broad spectrum.

• Durable Coatings: Both surfaces feature high-efficiency anti-reflection (AR) coatings, which protect the polished glass surfaces and enhance overall light transmission.

• Environmental Robustness: Engineered to maintain performance under challenging conditions, ensuring long-lasting reliability.

Applications of Longpass Filter

ATOPTIK longpass filters are suited for a variety of scientific, industrial, and imaging uses, including:

• Machine Vision: Effective in blocking or transmitting specific wavelengths to improve image clarity, contrast, and resolution.

• Monochrome Imaging: Enhances contrast and separates colors in black-and-white imaging setups.

• Outdoor Imaging: Suitable for applications under natural light conditions (sunlit or moonlit environments).

• Fluorescence and Multi-Wavelength Imaging: Optimized for longer-wavelength near-infrared and multi-wavelength fluorescence imaging.