Patent ID: 9507133
Filing Date: 2016-11-29
CPC Classification: G02B,G03B

Claim Text:
1. A zoom lens comprising in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; a third lens unit having a positive refractive power; a fourth lens unit having a negative refractive power; a fifth lens unit which includes a lens; and a sixth lens unit having a positive refractive power, wherein: a distance between the first lens unit and the second lens unit widens more at a telephoto end than at a wide angle end, a distance between the second lens unit and the third lens unit narrows more at the telephoto end than at the wide angle end, a distance between the third lens unit and the fourth lens unit changes at the time of zooming from the wide angle end to the telephoto end, a distance between the fourth lens unit and the fifth lens unit changes at the time of zooming from the wide angle end to the telephoto end, a distance between the fifth lens unit and the sixth lens unit changes at the time of zooming from the wide angle end to the telephoto end, and the fourth lens unit and the fifth lens unit move at the time of zooming from the wide angle end to the telephoto end.