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Liquid Lens Features, Applications, and Technology

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Liquid Lens Features, Applications, and Technology

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Liquid lenses quickly adjust focus to accommodate objects located at various working distances (WDs). Liquid lenses are small, mechanically or electrically controlled cells containing optical-grade liquid. When a current or voltage is applied to a liquid lens cell, the shape of the cell changes. This change occurs within milliseconds and causes the optical power, and therefore focal length and WD, to shift. Many manufacturers have designed liquid lenses that operate via slightly different processes: electrowetting, current-driven polymer, or sound piezoelectric. Liquid lenses are an ideal solution for imaging applications requiring rapid focusing, high throughput, and depth of field (DOF) and WD accommodation.

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