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.

When precision matters, every element counts. 🔍  MidOpt® Multi-Element Lenses are custom-engineered to meet specific opt...
01/14/2026

When precision matters, every element counts. 🔍

MidOpt® Multi-Element Lenses are custom-engineered to meet specific optical requirements – from cemented achromatic doublets to complete assemblies mounted in aluminum or plastic housings. Designed for performance, alignment and clarity across demanding imaging applications.

Tailored optics, built for precision.
🔗 Learn more ➝ midopt.com/custom-optics/multi-element-lenses

📍 SPIE Vision Tech | Jan 20-22 📌 Booth  #6727, San Francisco, CA MidOpt® will be showcasing SiLWIR and advanced optical ...
01/13/2026

📍 SPIE Vision Tech | Jan 20-22
📌 Booth #6727, San Francisco, CA
MidOpt® will be showcasing SiLWIR and advanced optical filters and machine vision solutions at Photonics West. Stop by and see us.

Focus your light with precision. 💡 MidOpt® Cylindrical Lenses magnify along a single axis and can be custom-made with po...
01/12/2026

Focus your light with precision. 💡

MidOpt® Cylindrical Lenses magnify along a single axis and can be custom-made with positive or negative focal lengths. Perfect for creating a sharp, well-defined line of light when paired with LED line lights or laser diodes – ideal for inspection, alignment and measurement applications.

Custom optics for focused performance.

🔗 Learn more ➝ midopt.com/custom-optics/cylindrical-lenses
# Custom Optics

Cylindrical lenses have their “power” or magnification in only one axis or direction, and can be custom manufactured with positive or negative focal lengths. In machine vision applications they are commonly used in conjunction with LED line lights or laser diodes to generate a well defined band or...

Precision optics start with the right lens. 🔍  MidOpt® Spherical Lenses are custom-produced to meet your exact optical r...
01/08/2026

Precision optics start with the right lens. 🔍

MidOpt® Spherical Lenses are custom-produced to meet your exact optical requirements.

Choose from designs like Plano-Convex, Bi-Convex and Meniscus (positive or negative), with optional AR (anti-reflection) or specialty coatings for enhanced performance.

Built for precision. Designed for clarity.
🔗 Learn more ➝ midopt.com/custom-optics/spherical-lenses
Lenses Optics

Need to capture sharper close-up images? 🔍 MidOpt® Extension Rings make it easy to focus closer and reveal more detail –...
01/06/2026

Need to capture sharper close-up images? 🔍

MidOpt® Extension Rings make it easy to focus closer and reveal more detail – perfect for precision inspection and short-distance imaging.

✅ Decrease MOD (minimum object distance)
✅ Increase magnification without changing lenses
✅ Available individually or in convenient 4- or 6-piece sets

Enhance your setup for applications that demand clarity and precision.
🔗 Learn more ➝ midopt.com/accessories/extension-rings

Happy New Year from all of us at MidOpt!Wishing you a bright, successful, and innovative 2026.Thank you for your continu...
01/01/2026

Happy New Year from all of us at MidOpt!

Wishing you a bright, successful, and innovative 2026.
Thank you for your continued partnership, we look forward to another year of moving machine vision forward.

See the difference a diffuser makes. In the first image (No Diffuser), glare from the reflective packaging obscures the ...
12/31/2025

See the difference a diffuser makes.

In the first image (No Diffuser), glare from the reflective packaging obscures the barcode – making it unreadable. In the second image (With Diffuser), the light is evenly scattered, reducing glare and revealing a clear, scannable barcode.

MidOpt® Diffusers help create uniform illumination, reduce harsh reflections and improve imaging accuracy – especially in high-glare or shiny material applications.

🔗 Learn more ➝ midopt.com/filters/diffuser

Lighting control starts with the right diffuser. 💡 MidOpt® Diffusers are available in a variety of materials and styles ...
12/29/2025

Lighting control starts with the right diffuser. 💡

MidOpt® Diffusers are available in a variety of materials and styles – including ground glass, molded or textured acrylic and glass, thin plastic film and flashed or solid opal glass.

For applications needing precise light shaping, diffractive diffusers provide exceptional control, shaping LED output with minimal light loss and maximum uniformity.

Whether you’re softening glare or fine-tuning your illumination, there’s a MidOpt® diffuser designed to fit your system.

🔗 Learn more ➝ midopt.com/filters/diffuser
# Diffusers

12/26/2025

Happy Holidays!

Wishing you joy, good health, and continued success in the year ahead.
We’re grateful for the partnerships, innovation, and progress our community has created this year. Here’s to more clarity, precision, and breakthrough imaging.

A diffuser may seem simple, but its impact is powerful. By scattering light evenly, diffusers reduce glare, soften shado...
12/23/2025

A diffuser may seem simple, but its impact is powerful.

By scattering light evenly, diffusers reduce glare, soften shadows and eliminate harsh LED or filament “hot spots.” Placed directly over a light source, they ensure smooth, consistent illumination – improving image clarity and overall system performance.

🔗 Learn more ➝ midopt.com/filters/diffuser

12/17/2025

Ready to see how filters perform – side by side? 👀
Here’s how to use the MidOpt® Curve Compare Tool in 3 simple steps:

Step 1: Select up to 5 filters to compare.
Step 2: Hover over each curve to view real-time transmission data – including peak transmission, cutoff points and overlap.
Step 3: Need help? Contact us for expert guidance on choosing the best filter for your wavelength and application.

Make confident, data-driven decisions – faster.
Watch Video: https://youtu.be/D4hk0Sr-D-Q
🔗 Try it here: midopt.com/tools/curve-compare

12/15/2025

Choosing the right filter just got easier.
With the MidOpt® Curve Compare Tool, you can instantly visualize and compare the spectral curves of multiple filters side by side – helping you make data-driven decisions with clarity and confidence.

Fine-tune for UV, VIS or NIR applications, reduce guesswork and find the perfect match for your wavelength and sensor sensitivity – all in one easy-to-use interface.

🔗 Try it here: midopt.com/tools/curve-compare

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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