'Invisible Drone' Video Goes Viral, Fresnel Lens Technology Sparks Online Debate

A video purportedly demonstrating an 'invisible drone' has spread rapidly across social media platforms, igniting widespread discussion. In the comments, some users suggested the footage may feature Fresnel lens material applied to the drone's airframe to produce a visual cloaking effect.

What Is a Fresnel Lens?

A Fresnel lens is a lightweight, thin-profile optical component that compresses the light-bending capabilities of a conventional thick lens into a flat, layered structure. Common applications include:

• Lighthouses: focusing intense beams to extend visibility range
• Projectors: distributing light sources evenly across a display surface
• Magnifying tools: producing lightweight, portable magnification aids

The core function of a Fresnel lens is to bend and focus light. In theory, if such material were applied to a drone's body, it could refract ambient light around the craft, creating a degree of optical transparency to the naked eye.

Authenticity of the Video Remains Unverified

However, the video has not been verified by any independent organization, and the authenticity of the footage cannot be confirmed. Online discussion remains largely speculative, with no technical experts or official authorities providing a concrete explanation or endorsement of the device shown.

While drone stealth technology is an active area of defense research in multiple countries, there are currently no publicly confirmed cases of a commercial or military drone capable of achieving full optical invisibility.

⚠️ Editor's note: The video referenced in this article has not been independently verified. Readers are advised to treat related claims with caution.

Source: Social media

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