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The features of plano concave lensesTime:2018-05-09 Tian Cheng’s plano concave lenses have a negative focal length, diverge collimated incident light, and form only virtual images which are seen through the lens. They are often used to expand light beams or increase focal lengths in existing systems. They are widely used in telescopes, collimators, optical transceivers, magnifiers, radiometers and condensers. As a famous plano concave lenses manufacturer in China,Tian Cheng can provide sapphire plano concave lens and precision plano concave lenses. If you need plano concave lens, please feel free to contact us! |