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diverging lens

American  

noun

Optics.
  1. a lens that causes a beam of parallel rays to diverge after refraction, as from a virtual image; a lens that has a negative focal length.


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A ray that enters a diverging lens by heading toward the focal point on the opposite side exits parallel to the axis.

From Textbooks Aug. 12, 2015

The focal length f of a diverging lens is negative.

From Textbooks Aug. 12, 2015

Figure 25.28 Rays of light entering a diverging lens parallel to its axis are diverged, and all appear to originate at its focal point F .

From Textbooks Aug. 12, 2015

Note that the focal length and power of a diverging lens are defined to be negative.

From Textbooks Aug. 12, 2015

Toward this aperture there may be moved either a converging lens of five dioptries or a diverging lens of the same diameter, but of six dioptries.

From Scientific American Supplement, No. 620, November 19,1887 by Various

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