Modern hunting sights have fully entered the electronic age. From thermal scopes to red dot sights, the precision electrical components are packed into compact housings. The stability of these components directly determines the accuracy and reliability of your optic.
Unlike traditional optical sights, electronic aiming systems rely on circuit boards, sensors, and processing chips—components rich in metals like copper and tin. These semiconductor materials are not inert like glass; they are constantly under attack from oxygen and moisture in the air. Component oxidation is the silent killer that accelerates performance degradation and shortens the lifespan of modern thermal imaging scopes and red dot sights.
From my first day in this industry four years ago, one of my most critical missions has been fighting an invisible enemy: humidity and air. Protecting precision electric boards, sensors, and processing chips—slowing their oxidation—is essential to ensuring every NPO product performs reliably in demanding hunting environments.
At Novelty Point Optics, we’ve developed a comprehensive system to combat electronic oxidation. Our most powerful weapon is the vacuum nitrogen filling machine, which is an “Inert Shield” for Your Optics.
This process is the final step before every NPO product leaves our facility—and it’s perhaps the most telling example of our commitment to quality. Here’s how it works:
Preparation: The small vent screw on the product’s base is opened.
Vacuum & Drying: Units are inverted and placed in the vacuum chamber tray. The door seals, and the vacuum cycle begins, extracting all air from the chamber and from inside every optic. Simultaneously, the chamber automatically heats to 65°C/145°F, drying each unit and removing all residual moisture.
Nitrogen Infusion: Once target vacuum pressure, temperature, and time are reached, the system opens a solenoid valve, flooding the chamber and every optic with high-purity nitrogen.
Permanent Sealing: The chamber opens. Because pure nitrogen is heavier than air, it remains inside the inverted optics. We quickly seal the vent hole with a special srew and apply silicone for secondary protection, locking the nitrogen inside permanently.
This process creates an inert gas environment for the precision electric components inside every NPO thermal riflescope and red dot sight. Deprived of oxygen and moisture, oxidation is dramatically slowed, extending product lifespan and enhancing resistance to harsh environments.
Behind the high performance you see is Novelty Point Optics’ unwavering commitment to our customers—a humble pursuing of product quality achieved through complex, rigorous processes. Vacuum nitrogen filling is just one of our “invisible efforts,” but it protects something vital: your absolute confidence with every trigger pull in the dark.
