Longpass Colour Filters

Longpass colour filters transmit longer visible and infrared wavelengths while blocking shorter wavelengths such as ultraviolet and blue light.

These filters are used to improve contrast and resolution in monochrome imaging systems and can assist with colour separation applications.

Filter Models

Enhances subject separation in monochrome imaging applications.

Blocks ultraviolet and shorter visible wavelengths.

Passes longer visible and infrared wavelengths.

Can be used where broad wavelength blocking is sufficient.

Specification	Details
LP500 Yellow Longpass Filter Blocks most blue and ultraviolet wavelengths
LP500 filters are designed to improve contrast and resolution in monochrome camera systems. These filters block ultraviolet and shorter visible wavelengths while passing longer visible and infrared wavelengths. Longpass filters are commonly used with monochromatic LED and laser diode illumination systems. In many machine vision applications, a bandpass filter such as the BP525 may provide improved ambient light suppression.
Model	LP500
Transmission	Passes 500nm and above
Blocking Range	Absorbs 480nm and below
Suitable For	Increasing contrast and resolution in monochrome cameras
Alternative Filter	BP525 Bandpass Filter
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Specification	Details
LP515 Yellow-Orange Longpass Filter Blocks all blue and ultraviolet wavelengths
LP515 filters improve contrast and image resolution in monochrome imaging applications. These filters block ultraviolet and blue wavelengths while transmitting longer visible and infrared light. LP515 filters are often specified for use with monochromatic LED and laser diode illumination. For applications requiring stronger ambient light rejection, a BP535 bandpass filter may be a more suitable alternative.
Model	LP515
Transmission	Passes 510nm and above
Blocking Range	Absorbs 500nm and below
Suitable For	Increasing contrast and resolution in monochrome cameras
Alternative Filter	BP535 Bandpass Filter
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