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| MidOpt
Acrylic Longpass filters Back to Manufacturers Back to Filter Mounts |
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Acrylic Longpass filters are a durable, lightweight and economical solution
for inspection windows. They can protect a lens in environments where
broken glass might pose a problem. With a high transmission ranging from
90 to 98% and an anti-reflection coating for maximum transmission, these
filters are made from impact-resistant, optical-grade acrylic and are
half the weight of glass filters.
Half the weight of glass. Acrylic Filters are available in Threaded Mounts,
sizes M13.25 to M105, and in Slip Mounts. Acrylic Filters can be precision
laser-cut to a desired size or configuration.
They are frequently used as enclosure windows for outdoor applications, as well as over light sources to control the wavelength emission of broad spectrum light sources. Because of their durability, they’re commonly used in regulated applications where glass over the inspection area may not be permitted.
Model |
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| AC380 A/R protective
window - Used where the lens needs to be protected or
when in regulated applications where the use of glass filters are
prohibited |
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| AC380 is an abrasion, scratch, breakage and solvent resistant acrylic protective window made to withtand harsh environments, are half the weight of glass windows and are 50 times more scratch resistant and impervious to all types of solvents and chemicals including: acetone and MEK. This filter blocks almost all UV light while averaging greater than 98% transmission in the 450-700nm visible spectrum. This acrylic protective window is a highly effective yet economical solution for covering camera enclosures and on-axis lighting. Available from stock in 2mm and 3mm thicknesses as well as custom sized |
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Useful
Range |
Cut-on Wavelength
50% T |
Tolerance
|
Peak Transmission |
Surface
Quality |
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450-850nm |
380nm |
+/- 10nm
|
≥ 95% |
40/20 |
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Model |
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| AC685
Acrylic NIR Longpass Filter - Ensuring that mainly IR
light reaches the object |
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| The AC685 IR Pass/Visible Block filter
material is a 2mm thick acrylic sheet with carefully-controlled
near-IR spectral properties. |
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Useful Range |
Cut-on Wavelength 50%
T |
Tolerance |
Peak Transmission |
Surface Quality |
|
710-1100nm |
685nm |
+/- 10nm |
≥ 90% |
80/50 |
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Model |
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| AC760
Acrylic NIR Longpass Filter - Ensuring that mainly IR
light reaches the object and blocks a portion of the very near
IR |
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| AC760 is similar to AC685 except that
it also blocks a portion of the very near IR. It is very well
suited for use with 785nm, 810nm, 830nm or 850nm laser diode or
LED illumination, or in situations where visible light emitted
by arc/flash lamps needs to be blocked while near-IR illumination
is passed. |
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Useful Range |
Cut-on Wavelength 50%
T |
Tolerance |
Peak Transmission |
Surface Quality |
|
710-1100nm |
685nm |
+/- 10nm |
≥ 90% |
80/50 |
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