Dapi Fluorescence Filter Set

Coligh's fluorescence filters are a collection of high-performance filter products that have been specifically designed to work with a wide range of popular fluorophores, as well as some of the most promising new ones. These filters have been used as the starting point for creating custom-designed filters for some of the most advanced instruments on the market, including DNA sequencers, cytometers, microplate readers, in vivo imagers, and thermocyclers.

At Coligh, we are now offering our OEM-proven designs to individual researchers through our catalog of high-performance filter sets for fluorescence microscopy. Our filters are manufactured using hard coating technology, which provides excellent spectral performance, spectral stability, and physical durability.

Our filters are designed with several key features that ensure maximum performance. First and foremost, we prioritize exceptionally high passband transmission to ensure that as much of the desired signal as possible is detected. We also use maximized out-of-band blocking, including extended range blocking on excitation filters, to minimize background noise and signal interference. Additionally, we employ extremely steep slopes from rejection to transmission regions, which enables the filter to sharply and accurately discriminate between desired and undesired signals.

We also focus on optical finishing to achieve maximum image rendition, including precision grinding and polishing, and anti-reflection coatings to reduce the amount of light lost due to reflection. Our filters have specific bandpass specifications of center wavelength and bandwidth, which provide maximum image brightness and minimum background noise.