Device for countering and tracking a threat with optical delay device

This device is designed to confuse incoming missiles that use a laser homing system. It works by capturing the missile's laser beam and splitting it into two separate beams. One of these split beams is intentionally delayed, traveling a much longer path than the other, specifically longer than the laser's natural coherence. This optical trick is intended to disrupt the missile's ability to track its target, and the claims specify that the prism can rotate for aiming.

Why it matters: Filed before significant advancements in miniaturized, high-precision optical components and real-time electro-optical systems. These developments could now make the complex optical delay and rotating prism mechanism more practical for missile defense.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedPrecision optics, optical delay, rotating mechanism

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