Midwest Optical Systems SP730-37.5 Near-IR/Colorless Dichroic Block M37.5 Shortpass Filters
Often thought of as IR-cut filters, Shortpass Filters are specifically designed to pass a broad spectrum of shorter wavelength light, while blocking longer visible (VIS) and near-infrared (NIR) wavelengths.

Shortpass Filters are commonly used in color imaging to achieve natural color rendering. They can also be used to protect the sensor from NIR laser damage or to reduce IR radiation or camera bloom created during hot metal or glass extrusion processes.
Designed to have a sharp transition between shorter wavelengths.
(which are passed) and longer wavelengths (which are blocked)