Midwest Optical Systems

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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.

10/15/2026

😎 Control Light Without Compromise: MidOpt® Neutral Density (ND) Filters 😎

Think of ND Filters as sunglasses for your imaging system—reducing light intensity evenly without affecting color or contrast. Ideal for both color and monochrome cameras, they help prevent pixel saturation while maintaining wide apertures and shallow depth of field.

Key Features:
✔️ Maintain image integrity across VIS/SWIR spectrums
✔️ Available in a range of optical densities (OD 0.10–6.0)
✔️ Stackable for custom light control
✔️ Exceptional surface quality (40/20 scratch/dig)

📷 Precision light control. Maximum versatility.

Learn More: https://midopt.com/filters/neutral-density/

📸 See Polarizers in Action 📸 Wondering what a difference polarizers can make? Check out these images showing real-world ...
10/13/2026

📸 See Polarizers in Action 📸

Wondering what a difference polarizers can make? Check out these images showing real-world applications.

10/09/2026

What an incredible VISION 2026! 🎉

A huge THANK YOU to everyone who stopped by our booth to say hello, check out our new SiLWIR® Silicon Protective Windows, and learn more about our optical filter solutions.

From great conversations and productive meetings to memorable after-show events, it was a fantastic few days in Stuttgart. Special thanks to everyone who hosted us and made the week even better.

🏆 One of the biggest highlights? Taking home the 2026 inspect award for Best Innovation from a Midsize Company for SiLWIR®! We’re incredibly proud of our team and honored to receive this recognition.

Thanks to everyone who made VISION 2026 such a success. We’re already looking forward to the next one!

That’s a wrap on Day 2 of VISION Stuttgart! It was another fantastic day filled with great conversations, productive mee...
10/07/2026

That’s a wrap on Day 2 of VISION Stuttgart!

It was another fantastic day filled with great conversations, productive meetings and opportunities to connect with so many people across the machine vision industry.

If you haven’t stopped by yet, there’s still time! Join us tomorrow at Booth 10F52 to:

👋 Say hello to the MidOpt® team
🔥 Check out our new SiLWIR® Silicon Protective Windows
🔎 Explore our full line of optical filters for machine vision
🎁 Enter to win a FREE MidOpt® Filter Kit for testing

We’re looking forward to one more great day at VISION. See you tomorrow at Booth 10F52!

🔍 How Polarizing Film + Filters Work Together 🔍  Pairing Polarizing Film on your light source with a Polarizing Filter o...
10/07/2026

🔍 How Polarizing Film + Filters Work Together 🔍

Pairing Polarizing Film on your light source with a Polarizing Filter on your lens is the key to eliminating glare and enhancing image contrast. Check out the infographics to see how they team up for optimal results! 👇

🏆 WE WON!MidOpt® is honored to receive the 2026 Inspect Award for Best Innovation from a Midsize Company for SiLWIR® Sil...
10/06/2026

🏆 WE WON!

MidOpt® is honored to receive the 2026 Inspect Award for Best Innovation from a Midsize Company for SiLWIR® Silicon Protective Windows.

A huge thank you to everyone who voted for SiLWIR® and helped make this recognition possible. We’re incredibly proud of our team and the innovation behind a product designed to solve real challenges in LWIR imaging.

Developed as a durable, cost-effective alternative to germanium, SiLWIR® delivers more than twice the mechanical strength of germanium, excellent LWIR transmission from 8-12µm, and greater supply stability for demanding thermal imaging applications.

Thank you to Wiley and Inspect for this recognition—and to our customers, partners and supporters for continuing to put your trust in MidOpt®.

We’re honored to bring this award home! 🏆

Day 1 at VISION Stuttgart is almost in the books! 🇩🇪It’s been a great start to the show with lots of conversations, conn...
10/06/2026

Day 1 at VISION Stuttgart is almost in the books! 🇩🇪

It’s been a great start to the show with lots of conversations, connections and interest in the latest from MidOpt®. Stop by Booth 10F52 to meet our team, check out SiLWIR® Silicon Protective Windows and explore our full line of optical filter solutions.

See you at VISION! 👋

🛡️ Stop Glare at the Source with MidOpt® Polarizing Film 🛡️  For maximum glare reduction, it’s not just about the filter...
10/05/2026

🛡️ Stop Glare at the Source with MidOpt® Polarizing Film 🛡️

For maximum glare reduction, it’s not just about the filter on your lens – it starts with the light source. MidOpt® Polarizing Film, when applied over illumination, helps block incident light and significantly reduces reflections on transparent or reflective surfaces.

Why Use Polarizing Film?
✔️ Achieves optimal glare extinction at the source
✔️ Contrast ratios up to 10,000:1
✔️ Available in high-temp laminate or glass
✔️ Linear & Circular options for VIS and NIR
✔️ Self-adhesive backing (PSA007, HTA008, PSA1000)

Pair with a MidOpt® Polarizing Filter on your lens for best results.

💡 Clearer images start with smarter lighting.

10/01/2026

✨ Eliminate Glare. Reveal Detail. ✨

MidOpt® Polarizing Filters are essential for reducing reflections, enhancing contrast, and detecting imperfections in transparent or shiny materials. For maximum glare reduction, pair a lens-mounted Polarizing Filter with Polarizing Film on the light source.

Key Features:
🔹 Contrast ratios up to 10,000:1
🔹 Rotating Linear Polarizers with locking thumb screw for precision tuning
🔹 Available in Linear, Circular & Wire Grid options (VIS – SWIR)
🔹 Optional A/R and oleophobic coatings
🔹 Exceptional 40/20 surface quality*

Whether you're inspecting glass, plastics, or reflective surfaces, MidOpt® Polarizers bring clarity to your imaging system.

🔗 Learn More: https://midopt.com/filters/polarizing/

09/29/2026

💡 Tight on Space? Backlight Without the Bulk 💡

When space is limited but you still need sharp edge definition, the MidOpt® Backlight fluoreSHEET® is your go-to solution. This innovative material emits a bright orange fluorescence when illuminated with a blue LED – perfect for creating high-contrast silhouettes.

🎯 Pair it with the MidOpt® BP590 Orange Bandpass Filter to block blue excitation light and isolate the orange emission. The result? A crisp, white diffuse background in monochrome images – just like a traditional backlight, without the extra space.

🟧 Compact. Effective. Brilliantly simple.

Learn More> https://midopt.com/accessories/backlight-fluoresheet/

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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