Double Concave Lenses are characterized by identical concave surfaces on both sides, giving them a negative focal length. These lenses inherently diverge incoming light rays. In 1:1 imaging, they ensure faithful image reproduction without distortion. Within multielement systems, they partner with other lenses to rectify aberrations and fine - tune focal lengths, optimizing overall optical performance. Their light - diverging property makes them essential in optical setups demanding precise light - path control, enhancing functionality in diverse applications.
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