34-749 25.2 x 35.6 mm High Performance Fluorescence Dichroic Filter 850nm

The 34-749 is a high-performance dichroic filter, specifically designed for fluorescence applications, with a cut-on wavelength of 850nm. This filter is sourced from the reputable optical vendor, Edmund Optics, and is available in their catalog with the catalog number 34-749. The filter is currently in stock, and users can access more information or make a purchase via the provided weblink.

The 34-749 filter is a rectangular dichroic filter, with a base shape that ensures efficient light transmission and blocking capabilities. It is made from the material ID UVFS MAL-1965, which is known for its excellent optical properties and durability. The filter has a width of 25.2mm and a height of 35.6mm, making it suitable for a wide range of optical systems. It also has a thickness of 1.05mm, which contributes to its robustness and ease of integration into optical setups.

The dichroic coating on the filter is applied on both the front and back surfaces. This coating is designed to reflect or transmit light at specific wavelengths, depending on the direction of incidence. In this case, the front surface is coated with EDM 34-748, while the back surface is also coated with EDM 34-748. This coating configuration ensures optimal performance for the specified cut-on wavelength of 850nm.

The 34-749 filter is designed with a thin lens shape, which further enhances its optical performance by minimizing aberrations and distortions. This makes it an ideal choice for applications that require high-precision optical filtering, such as fluorescence microscopy, spectroscopy, and other laser-based systems.