Midwest Optical Systems

Midwest Optical Systems A leading manufacturer of custom precision optical filters, components, and imaging solutions since Unmounted filters are offered in custom shapes and sizes.

A manufacturer of custom precision optical components and imaging solutions since 1988, Midwest Optical Systems - MidOpt - is recognized as the world’s leading resource for off-the-shelf and custom machine vision filters, lenses and accessories used in industrial imaging applications. MidOpt has an extensive history in optical component design, fabrication and inspection, and continues to develop

innovative new products for industrial imaging that are simply not found elsewhere. Industries served: machine vision, security, surveillance, LPR, scientific, bio-medical and NDVI. MidOpt’s complete line of filters cover the visible, near-infrared and UV spectrums. They represent the easiest, most cost effective method for insuring the reliability, stability and repeatability of industrial imaging systems. MidOpt filters are rugged; environmentally stable; heat and solvent resistant; non-hygroscopic and oleophobic, and are easy to maintain. Various designs are available for use in:

· Refining color recognition and improving separation of subject matter
· Ease viewing of desired features through contrast enhancement
· Elimination of glare or hot spots from highly reflective surfaces
· Saving cost, space and system maintenance and start-up time by eliminating the need for shrouding
· Protecting camera lenses and lighting from dust, scratching and inhospitable environments
· Enhancing lens resolving capability by greatly reducing chromatic aberrations.
· Boosting system speed and efficiency while substantially decreasing false accepts/false rejects.
· Reducing required luminous intensity, thereby saving on lighting cost and maximizing the lifespan of LED or other light sources. MidOpt offers the largest variety of threaded filter mount sizes and types in stock ranging from M13.25 to M105. MidOpt filters can be fastened to any camera lens with the appropriate mounting solution.

06/25/2026

Blurry edges and color fringing? That’s chromatic aberration, caused by different wavelengths of light failing to focus at the same point. By using a MidOpt® Bandpass Filters to narrow the wavelength range that reaches the sensor, these filters reduce optical noise and eliminate chromatic mismatch, resulting in sharper, higher-resolution images. Clarity starts with control.

06/24/2026

Stop by and see us at Automate booth #333. Check out MidOpt SiLWIR pure-grade silicon protective windows for thermal imaging, learn about our full filter line and enter to win an FK201 filter kit. See you there! Chicago

Focus on What Matters. Filters do more than just shape light — they enhance contrast by passing or blocking specific wav...
06/23/2026

Focus on What Matters. Filters do more than just shape light — they enhance contrast by passing or blocking specific wavelengths. This lets us brighten key details or suppress distractions in an image.

Maximize Machine Vision System Performance with Filters: ensure flawless control, dependable results, unmatched repeatab...
06/17/2026

Maximize Machine Vision System Performance with Filters: ensure flawless control, dependable results, unmatched repeatability and exceptional image quality for monochrome and color vision systems.

06/15/2026

From the production line to the lab and the skies to the streets — our filters deliver clarity, consistency and reliability where it matters most. MidOpt® machine vision filters are designed to meet the precision demands of diverse industries:

🏭 Factory Automation
🎥 Motion Analysis & Cinematography
🔒 Security & Surveillance
🧬 Medical & Life Sciences
🚗 License Plate Recognition
🔬 Scientific Research
🚦 Intelligent Transportation Systems
📸 Professional Photography
🛰️ Aerial Imaging
📐 3D Metrology

A history of innovation since 1988. From our humble beginnings with a single red machine vision filter in our Singapore ...
06/11/2026

A history of innovation since 1988. From our humble beginnings with a single red machine vision filter in our Singapore office, we quickly expanded to North America and have grown to offer one of the most complete lines of machine vision filters in the world.

Welcome to MidOpt® – Specializing in innovative optical filter designs for industrial imaging for more than 35 years. We...
06/09/2026

Welcome to MidOpt® – Specializing in innovative optical filter designs for industrial imaging for more than 35 years. We're proud to be represented in over 30 countries and offer more than 3,000 cutting-edge products.

MidOpt® SiLWIR™ has been nominated for an INSPECT AWARD in the Midsize Company Innovation category! 🏆Vote here: https://...
06/02/2026

MidOpt® SiLWIR™ has been nominated for an INSPECT AWARD in the Midsize Company Innovation category! 🏆Vote here: https://wileyindustrynews.com/en/award/inspect-award/

Designed for demanding imaging applications, SiLWIR™ Protective Windows deliver exceptional durability, high transmission, and reliable performance in harsh environments.

Voting is officially open through September 15, 2026, and we’d appreciate your support. The top three finalists in each category will be showcased during the Vision trade fair in Stuttgart.

The jury for the inspect award 2026 has made an initial selection and nominated ten products in each of the categories Vision, Automation + Control, Artificial Intelligence, and Midsize Company Innovation. But which new development is truly innovative, offers the greatest benefit to the user, or has...

05/27/2026

Common Machine Vision Applications for Polarizers

Reflections from shiny or transparent surfaces can hide critical inspection details. Polarizing filters help eliminate glare and improve contrast, making features easier to detect and analyze.

Typical applications include:

• PCB inspection and flux detection
• Reading codes on reflective metal parts
• Glass and plastic inspection
• Liquid or coating detection
• Surface defect inspection

By reducing reflections and enhancing image clarity, polarizers help create more reliable machine vision inspection results.

MidOpt® honors and remembers the brave men and women who made the ultimate sacrifice in service to our country this Memo...
05/25/2026

MidOpt® honors and remembers the brave men and women who made the ultimate sacrifice in service to our country this Memorial Day.

Please note our office will be closed Monday, May 25 in observance of the holiday. Shipping operations will resume Tuesday, May 26.

We wish you and your family a safe and meaningful Memorial Day weekend.

Address

322 N Woodwork Lane
Palatine, IL
60067

Opening Hours

Monday 7am - 5pm
Tuesday 7am - 5pm
Wednesday 7am - 5pm
Thursday 7am - 5pm
Friday 7am - 5pm

Telephone

+18473593550

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