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.

🦃 Happy Thanksgiving! 🍁We’re thankful for our amazing partners and customers, wishing you a safe, happy holiday! MidOp...
11/27/2025

🦃 Happy Thanksgiving! 🍁We’re thankful for our amazing partners and customers, wishing you a safe, happy holiday!

MidOpt® will be closed Nov 27–28, shipping resumes Mon, Dec 1.

📏 PRECISION YOU CAN MEASURE Every MidOpt® filter is tested with advanced spectrophotometer technology to ensure: 1️⃣ Ac...
11/25/2025

📏 PRECISION YOU CAN MEASURE

Every MidOpt® filter is tested with advanced spectrophotometer technology to ensure:
1️⃣ Accurate center wavelength & bandwidth
2️⃣ Reliable out-of-band blocking
3️⃣ Precise FWHM (full-width half-max) specs

Because in machine vision, precision isn’t optional – it’s essential.

MidOpt® Light Balancing Filters Correct artificial lighting conditions and make colors appear more natural — without re...
11/19/2025

MidOpt® Light Balancing Filters

Correct artificial lighting conditions and make colors appear more natural — without relying on software fixes. By adjusting the emission spectrum of LEDs, strobes, tungsten, halogen, sodium, or fluorescent lights, these filters deliver:
✅ Improved contrast
✅ True-to-life colors
✅ Stable, high-quality imaging

✨ LA Series warms up cool LED/xenon light
✨ LB Series balances reddish tungsten/halogen/sodium
✨ FL Series reduces green fluorescent cast

Because accurate color starts with better optics.

👉 Learn more: https://midopt.com/filters/light-balancing/

🧪 The Acetone Test proves the difference. When exposed to harsh solvents, standard acrylic clouds and degrades fast. Bu...
11/17/2025

🧪 The Acetone Test proves the difference.

When exposed to harsh solvents, standard acrylic clouds and degrades fast. But the MidOpt® AC380 Acrylic Protective Window stays clear and intact — thanks to advanced hard + AR coatings that resist chemicals, abrasion and cleaning agents.

For environments where safety, longevity and optical clarity matter, MidOpt® Acrylic Filters deliver a clear advantage.

Watch the video: https://youtu.be/vLHRKP7lxtA

MidOpt® Acrylic Filters Durable, lightweight, and cost-effective – the perfect solution for inspection windows where gl...
11/13/2025

MidOpt® Acrylic Filters

Durable, lightweight, and cost-effective – the perfect solution for inspection windows where glass breakage is a concern.

🔹 AB Series: Bandpass filters for precise spectral control
🔹 AC Series: Longpass filters ideal with LEDs, sensors & inspection systems
🔹 AP Series: Acrylic polarizers with up to 10,000:1 contrast

Available with AR, oleophobic & hard coatings for enhanced durability.

👉 Protect your optics with confidence.
https://midopt.com/filters/acrylic/

Simplify your optical setup with MidOpt® Step Adapter Rings – built for versatility and compatibility. Step-Up Rings ✔ ...
11/11/2025

Simplify your optical setup with MidOpt® Step Adapter Rings – built for versatility and compatibility.

Step-Up Rings
✔ Mount larger filters on smaller lenses
✔ Prevent vignetting on short focal lengths
✔ Sizes: SU22.5-25.5 → SU77-105

Step-Down Rings
✔ Mount smaller filters on larger lenses

Secure fit. Reliable performance.

https://midopt.com/accessories/step-rings/

Today and every day, we honor the brave men and women who have served our country.A special thank you to our own veteran...
11/11/2025

Today and every day, we honor the brave men and women who have served our country.
A special thank you to our own veterans, Mike Giznik (Air Force), John Clarida (Army), and Al Houk (Navy), for your service, sacrifice, and dedication.

Happy Veterans Day from all of us at MidOpt.

🔬 Optical precision matters. Most MidOpt® filters are engineered with a superior 40/20 scratch-dig surface quality – fa...
11/05/2025

🔬 Optical precision matters.

Most MidOpt® filters are engineered with a superior 40/20 scratch-dig surface quality – far exceeding the industry standard of 60/40 or 80/50. The result? Cleaner images, sharper clarity, and more consistent results.

For the most demanding applications, MidOpt® also offers filters with an ultra-precise 10/5 rating – ensuring near-perfect performance in high-precision imaging.

MidOpt® = turnkey custom window assemblies. ✔️ Silk screening ✔️ Chemical strengthening ✔️ AR & oleophobic coatings ✔️ ...
11/03/2025

MidOpt® = turnkey custom window assemblies.

✔️ Silk screening
✔️ Chemical strengthening
✔️ AR & oleophobic coatings
✔️ Easy-mount gaskets/tapes

Built for cameras, sensors, LiDAR, drones & more.

10/31/2025

Happy Halloween from your friends at MidOpt! Wishing everyone a safe and enjoyable day.

MidOpt® Protective Windows – engineered for every application. Choose from a wide variety of materials: Fused Silica / Q...
10/30/2025

MidOpt® Protective Windows – engineered for every application.

Choose from a wide variety of materials: Fused Silica / Quartz, Acrlyic, Borofloat®, Sapphire, Acrylic, Precision Windows, Industrial-Grade Glass and new SiLWIR™ Silicon Windows for Thermal Imaging (a Germanium alternative).

10/28/2025

🛡️ Protect your vision system

MidOpt® Protective Windows shield lenses from dirt, dust, liquids & harsh environments — without sacrificing image quality. Available in glass (durable, heat-resistant) or acrylic (lightweight, cost-effective), with AR & oleophobic coating options.

👉 Engineered for UV, VIS, NIR, SWIR, MWIR & LWIR imaging.
https://midopt.com/filters/protective/

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

Website

Alerts

Be the first to know and let us send you an email when Midwest Optical Systems posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Practice

Send a message to Midwest Optical Systems:

Shortcuts

Share

Share on Facebook Share on Twitter Share on LinkedIn
Share on Pinterest Share on Reddit Share via Email
Share on WhatsApp Share on Instagram Share on Telegram