Midwest Optical Systems LP190-46 Acrylic Filter Midwest Optical Systems LP190-37 Sapphire

Midwest Optical Systems LP190-37 Sapphire Protective Window M37 Protective Filters

Midwest Optical Systems BP635-48 Light Red Bandpass M48 Bandpass Filter

Midwest Optical Systems AC685-39 Acrylic Near-IR Longpass M39 Acrylic Filters

Midwest Optical Systems BP1000-40

Midwest Optical Systems LP190-46 Acrylic Filter Midwest Optical Systems LP190-37 SapphireMidwest Optical Systems LP190 46 Sapphire Protective Window M46 Protective Filters Often referred to as a sharp cut filter, Longpass Filters are specifically designed to pass a broad spectrum of longer wavelength light while blocking shorter wavelengths. Longpass Filters are often used in fluorescence applications to block an excitation light source or to pass multiple emission wavelengths, improving signal to noise ratio. Longpass Filters are also