Midwest Optical Systems LP190-46 Acrylic Filter 4 Near UV Interference Bandpass

4 Near UV Interference Bandpass M25

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

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

Edmund Optics 33-300 Lens 4mm UC Series Fixed Focal Length Lens M62 x 0

Midwest Optical Systems LP190-46 Acrylic Filter 4 Near UV Interference BandpassMidwest 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