710 Shortpass filters, Support Customized

A 710nm shortpass filter is a professional optical element that transmits light with wavelengths shorter than 710nm and blocks all longer wavelengths. The 710nm shortpass filters find applications in fluorescence microscopy, machine vision, and thermal imaging systems, they also serve widely in stage lighting, optical instruments, and CMOS/CCD sensor protection, where they prevent NIR interference and maintain accurate color reproduction.

What is key parameter when choose for Shortpass Filters?

When selecting a shortpass filter, the key parameter to consider include:

Cut-off Wavelength: This is the most critical selection criterion, typically defined as the wavelength at which the transmittance drops to 50%.

Transmission in Passband: The percentage of optical energy that passes through the filter within the allowed wavelength band.

Optical Density(OD): A measure of the filter’s ability to block unwanted long-wavelength light, commonly expressed as optical density. A higher OD value indicates more effective blocking.

Edge Slope: The spectral width of the transition from high transmission to high blocking. A smaller value means a steeper, sharper edge.

Angle of Incidence (AOI): The optical performance of the filter changes with the angle of incident light. As the AOI increases, the cut-off wavelength shifts toward shorter wavelengths.

Physical Properties and Environmental Durability: Includes substrate material, surface quality, dimensions, as well as operating temperature range and humidity tolerance.