Dual-Lens Focus Adjustment for Vibration-Free Laser Processing

The patent applies the counterweight principle by moving a second lens in the opposite direction to the first lens. When the first lens moves in one direction, the second lens moves in the opposite direction with comparable momentum, creating counterbalancing forces that cancel out vibrations and prevent them from being transmitted to the device housing.

The patent divides the focus adjustment function into two separate lens units instead of moving a single lens. Each lens unit can be independently controlled and moved in opposite directions, allowing the system to achieve both rapid focus adjustment and vibration cancellation through coordinated movement of the segmented lens units.

The patent implements self-service by making the lens movement system itself generate the counteracting forces needed for vibration cancellation. The momentum transfers during lens movement automatically create opposing forces that stabilize the system, eliminating the need for separate vibration damping mechanisms or complex stable constructions.

The patent uses dynamic movement control of the lens units to achieve stability. Instead of relying on static stable constructions, the system dynamically adjusts the movement of the two lens units in opposite directions, allowing the forces generated during movement to self-cancel vibrations and maintain system stability.