Illuminating the Spectrum: Discovering the Power of MWIR Lenses

Medium-Wave Infrared (MWIR) Lenses, a marvel of modern optics, are unlocking unseen dimensions of imaging and sensing. Within the electromagnetic spectrum, MWIR lenses occupy a distinctive niche, serving as windows into a realm between 3000 and 5000 nanometers (3µm to 5µm). Avantier, a vanguard of precision optics, stands at the forefront of MWIR lens production, offering a range of high-quality lenses that transcend industrial, research, security, and medical domains. In this exploration, we unveil the extraordinary potential of MWIR lenses, showcasing their applications, versatility, and the meticulous craftsmanship that defines Avantier’s offerings.

A Glimpse into MWIR Optics

MWIR Lenses extend an invitation to explore the world through a thermal lens, unveiling what remains hidden to the human eye and conventional visible-light imaging devices. Their unique ability to capture thermal radiation emitted by objects, rather than relying on external sources, underscores their uninvasive and nondestructive nature. This intrinsic characteristic renders MWIR lenses indispensable across a diverse spectrum of applications, heralding a new era of imaging possibilities.

While MWIR optics might not be tailored for precise temperature measurements, their exceptional imaging capabilities make them invaluable. From surveillance and industrial quality control to medical diagnostics, MWIR lenses offer high-resolution imagery that transcends visual limitations. Avantier’ MWIR lenses boast nearly diffraction-limited performance within their spectral range (3000 and 5000nm), making them versatile tools for applications ranging from Fourier-transform infrared (FTIR) spectroscopy to working in conjunction with tunable Quantum Cascade Lasers (QCL), as well as for thermal imaging.

Avantier: Forging MWIR Excellence

Avantier’s commitment to precision and excellence is manifested in their portfolio of MWIR lenses. With a focal length spectrum spanning 25 to 250, and field angles from 7 to 27.6 degrees, their in-stock MWIR lenses offer a range of options to cater to diverse requirements. While currently featuring manual focus, these lenses are equipped with a myriad of interfaces, including C-mount, M50x1, M60x1/Flangle, M36x1, and M32x1. These lenses, meticulously designed to complement a 640×512-15um detector, lay the foundation for unparalleled MWIR imaging experiences.

Various Types of MWIR Lenses

Customization Unleashed: Tailoring MWIR Components

Recognizing the nuanced demands of various applications, Avantier empowers customers with bespoke MWIR solutions. In instances where stock options fall short, expert engineers collaborate to design custom MWIR components meticulously calibrated to the application’s unique needs. Optics design, a symphony of substrate choices, coatings, and lens geometries, unfolds under the guidance of opto-mechanical engineers. The result is a harmonious marriage of form and function, aligning the MWIR lens with the application’s precise requirements.

The Choice of Substrate and Coatings

The selection of substrate and coatings is an artistry in itself, shaping the performance and durability of MWIR lenses. Avantier’s palette of substrate options includes silicon, germanium, Chalcogenide, zinc selenide, and zinc sulfide, each tailored to different spectral properties. Complementing these substrates, a diverse array of anti-reflective and durability coatings ensures optimal performance and longevity. The realm of customization extends to the production of high-quality zoom lenses, aspheric lenses, spherical lenses, and objective lenses, each meticulously tailored to the application’s demands.

Quality, Precision, and Performance

Avantier’ commitment to precision craftsmanship finds a resounding echo in their MWIR lenses. Each lens undergoes a rigorous quality control process, spanning surface quality, image distortion, aberrations, and astigmatism analysis. The pinnacle of this quality assurance is the state-of-the-art MTF Testing, a methodology that quantifies a comprehensive set of optical parameters with unparalleled accuracy. This meticulous testing guarantees that each MWIR lens performs consistently and predictably across a broad spectral range.

ISO Certification: A Testament to Excellence

Quality isn’t just a promise; it’s a commitment etched into the core of Avantier’s operations. As an ISO 9001-certified company, Avantier adheres to the highest standards of manufacturing, safety, and efficiency. Every MWIR lens is meticulously examined against ISO and Mil standards, offering customers the assurance of unwavering quality and performance.

A Pathway to the Ideal Optics

Avantier is more than a manufacturer; it’s a partner in the pursuit of optical excellence. Whether seeking an in-stock MWIR lens or crafting a bespoke solution, Avantier’s design team stands ready to provide a free consultation. Collaborating with seasoned engineers, customers embark on a journey to hone in on the ideal optics for their application. The result is not merely a lens; it’s a gateway to the unseen, an instrument of discovery that transcends the limits of human vision.

Factory Standard:

  • Focal lengths available: 25 to 250.
  • Field angle range: 7 to 27.6 degrees.
  • In-stock lenses have manual focus; various interface options from C-mount to M50x1, M60x1/Flangle, M36x1, and M32x1.
  • Designed for use with a 640×512-15um detector.
  • Provides nearly diffraction limited performance over the specified spectral range. 

Illuminating the Unseen

The evolution of MWIR lenses is a testament to human ingenuity and the boundless possibilities of optics. Avantier’s MWIR lenses stand as torchbearers, illuminating the unseen and transforming industries. From enhancing surveillance and industrial control to enabling groundbreaking medical diagnostics, MWIR lenses are rewriting the narrative of imaging and sensing. Avantier’s unwavering dedication to precision, customization, and quality solidifies its position as a luminary in the field. Please contact us if you’d like to schedule a free consultation or request for quote on your next project.


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