LP390 UV-Absorbing Protective Window

Midwest Optical SystemsSKU: LP390-13.25

Filter Mounting Thread: 13.25mm
Sale price$55.00 USD

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MidOpt LP390 UV-Absorbing Protective Window

LP390 filters are absorptive filters used to block ultraviolet (UV) light while allowing high (>90%) visible and near-IR light transmission. Most silicon camera sensors have some sensitivity in the UV spectrum. In some color cameras this light can typically be recorded as if it is blue light, resulting in an exaggerated bluish tint. These filters are well suited for color imaging applications as they absorb UV light and are precision ground and polished to exceptional flatness and parallelism. They are also frequently used as simple protective windows, shielding expensive camera lenses from inevitable contamination and scratching over time or, in more challenging environments, even breakage.

MidOpt LP390 UV-Absorbing Protective Window Technical Characteristics

Useful Range: 410-1100nm
Tolerance: +/- 10nm
Peak Transmission ?90%
Surface Quality 40/20
Mount (Mount Varies)
Clear Aperture (Aperture Varies)
Clear Aperture (Overall Thickness Varies)
Exposed Thickness (Exposed Thickness Varies)
StablEdge Yes

*Filters 62mm and greater have a surface quality tolerance of 60/40.

MidOpt LP390 UV-Absorbing Protective Window Transmission Chart

MidOpt LP390 Protective Window Transmission

MidOpt LP390 UV-Absorbing Protective Window Transmission Data 

MidOpt LP390 Longpass Filter Datasheet

MidOpt LP390 Part Numbers:

MidOpt LP390-25.4
MidOpt LP390-13.25
MidOpt LP390-22.5
MidOpt LP390-27
MidOpt LP390-30.5
MidOpt LP390-34
MidOpt LP390-35.5
MidOpt LP390-37
MidOpt LP390-37.5
MidOpt LP390-39
MidOpt LP390-40.5
MidOpt LP390-43
MidOpt LP390-46
MidOpt LP390-48
MidOpt LP390-49
MidOpt LP390-52
MidOpt LP390-55
MidOpt LP390-58
MidOpt LP390-62
MidOpt LP390-67
MidOpt LP390-72
MidOpt LP390-77
MidOpt LP390-82
MidOpt LP390-86
MidOpt LP390-95
MidOpt LP390-105 

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