Optical lens

Abstract

The present application discloses an optical lens. The optical lens comprises, in order from the human eye side to the image source side along the optical axis: a first lens having optical power; a second lens having optical power; a third lens having optical power; a fourth lens having positive optical power, the side of which near the human eye is convex; a fifth lens having optical power; and a sixth lens having negative optical power, the side of which near the image source is concave. The maximum effective radius of the side of the sixth lens near the image source is smaller than the maximum effective radius of the side of the sixth lens near the image source of any of the first to fifth lenses; and at least one of the fifth and sixth lenses has an Abbe number of less than 20.

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