MidOpt PR120 Linear Polarizing Filter
Used to eliminate or greatly reduce glare, rotating linear polarizers offer maximum flexibility and ease of use. Rotating the mount and visually observing the results makes it easy to determine the position at which reduction of glare is maximized. The locking thumb screw insures that vibration or accidental movement during cleaning keep the polarizer optimally positioned. Fixed, non-rotating mounts are also available.
This ultra-high contrast Linear Polarizer has an extended polarization efficiency, is abrasion and solvent resistant and can withstand higher temperatures than typical polarizers. To maximize glare reduction, use the PR120 in combination with the PG120 over the illuminating light source. Custom shapes and sizes are available up to 635 x 405mm (25″ x 16″). Contact Machine Vision Direct for custom shaped filters
*Not available in 1mm thickness or standard 25.4™ C-Mount option
MidOpt PR120 Linear Polarizing Filter Technical Characteristics
MidOpt PR120 Linear Polarizing Filter Transmission Chart
About Midwest Optical Systems Polarizers:
Polarizers are designed to reduce specular glare by passing only the light polarized in the direction perpendicular to the reflected light (glare). In addition, they help improve contrast, increase color saturation and detect imperfections in transparent materials. MidOpt Polarizing Filters can be easily and securely mounted to your lens and light source for maximum extinction or glare reduction.
- Contrast ratios average up to 10,000:1
- Linear, circular and wire grid polarizers are available for visible (VIS) and near-infrared (NIR) spectrums
- Rotating mount with locking thumb screw to fine tune glare reduction
- Exceptional surface quality; 40/20 scratch/dig
Polarizing Filter & Film Applications:
Polarizers are commonly used to reduce glare from non-metallic in objects with smooth surfaces or surfaces covered with grease, oil or liquid. For best results, use an optical-grade Polarizer over the lens and Polarizing Film over the light source. The PR120/PG120 offers ultra-high contrast and an anti-reflection oleophobic coating.
For Best Results: Polarizing Film should be used over the light source in conjunction with a Polarizing Filter over the camera lens.
MidOpt PR120 Part Numbers:MidOpt PR120-22.5
MidOpt Filter Mounting Options
Midwest Optical Systems offers filters in the following standard mounts. Most filters have both male and female threads to enable the ability to stack filters. For specific questions, please contact Machine Vision Direct.
- Designed for lenses with filter threads, a variety of filter types and stock threaded sizes are available: M13.25-M105
- Larger sizes, 62mm to 105mm, are made to order and are not returnable
- Custom thread sizes are available upon request
- Black anodized aluminum rings
- Rotating mounts with locking thumb screws are available upon request and come standard with Polarizing Filters
How to Order
To order a filter with a threaded mount, first select a filter (e.g. BP470) and add the mount size (e.g. M27) to build your part number (e.g. BP470-27). For help building your filter part number, visit an individual filter page.
Thread Dia x Pitch
|Part Suffix||Outer Diameter||Clear Aperture|
|M13.25 x P0.5||-13.25||14.4||10.6|
|M22.5 x P0.5||-22.5||24||18.5|
|M25.5 x P0.5||-25.5||27.5||21|
|M27 x P0.5||-27||29||22.5|
|M30.5 x P0.5||-30.5||32.5||25.5|
|M34 x P0.5||-34||36||29|
|M35.5 x P0.5||-35.5||37.5||30.5|
|M37 x P0.75||-37||39||31.9|
|M37.5 x P0.5||-37.5||39.5||32.5|
|M39 x P0.5||-39||41||34|
|M40.5 x P0.5||-40.5||42.5||35.5|
|M43 x P0.75||-43||45||38|
|M46 x P0.75||-46||48||41|
|M48 x P0.75||-48||50||43|
|M49 x P0.75||-49||51||44|
|M52 x P0.75||-52||54||47|
|M55 x P0.75||-55||57||50|
|M58 x P0.75||-58||60||52.9|
|M62 x P0.75||-62||64||57.1|
|M67 x P0.75||-67||70||61.8|
|M72 x P0.75||-72||75||66.9|
|M77 x P0.75||-77||80||71.9|
|M82 x P0.75||-82||85||76.8|
|M86 x P1.0||-86||89||80.8|
|M95 x P1.0||-95||98.2||89.9|
|M105 x P1.0||-105||109.8||100|
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