JNS SOLUTIONS

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This blog series highlights recent projects where JNS, in collaboration with our optical and applications engineers, delivered engineered solutions to complex challenges in precision glass fabrication and/or advanced thin-film coating. Each case study showcases our ability to meet demanding specifications for optical clarity, mechanical durability, and cosmetic quality—critical. JNS supports OEMs developing high-performance components across industries such as machine vision, aerospace, medical devices, and photonics.

Advanced Vision System for Long-Term Infrastructure Monitoring

A global OEM needed a vision system capable of withstanding extreme outdoor conditions for over a decade. This system, deployed across critical infrastructure sites worldwide, integrates multiple cameras and sensors within a ruggedized module.

The front-facing window of the module had to meet demanding specs:

  • High visible light transmission for clear imaging
  • Low UV and IR transmission to protect internal components
  • Integrated heat control to prevent fogging and ice buildup
  • Permanent bonding for long-term durability
  • High impact resistance to survive environmental hazards

JNS collaborated with the OEM to engineer a high-performance optical window with the following specifications:

  1. Dual-Sided BBAR Coating
    • Type: Broadband Anti-Reflective (BBAR)
    • Location: Applied to both sides of the window in critical optical zones
    • Performance: Visible reflectance AvgR< 0.50%
    • Benefit: Maximizes light transmission while minimizing glare and reflection
  2. Hot Mirror Coating (Shortpass Filter)
    • Cut-on Wavelength: 400 nm
    • Cut-off Wavelength: 700 nm
    • Function: Blocks UV and IR radiation while allowing visible light
    • Benefit: Protects sensors from thermal and UV damage, improving longevity
  3. ITO Coating with Bus Bars
    • Material: Indium Tin Oxide (ITO)
    • Function: Transparent conductive layer with integrated bus bars
    • Purpose: Heats the window to prevent ice and condensation
    • Benefit: Maintains optical clarity in cold and humid environments
  4. Double-Sided 3M VHB Adhesive
    • Type: Very High Bond (VHB) tape with release liner
    • Thickness: Customizable (as thin as 0.1mm)
    • Application: “Peel-and-place” installation for fast, secure bonding
    • Benefit: Eliminates the need for mechanical fasteners, ensuring a clean seal
  5. Ruggedized Cover Glass

Summary

JNS partnered with an OEM to develop a turnkey rugged optical window for global infrastructure monitoring. The solution features advanced optical coatings, integrated heating, and toughened, impact-resistant glass—engineered to deliver high performance and reliability for over a decade in extreme conditions.