Patent ID: 6980369

Claim:
A zoom lens comprising: a first lens group having a negative refractive power; a second lens group having a positive refractive power; and a third lens group having a positive refractive power; wherein said first lens group, said second lens group, and said third lens group are arranged in an order from an object side to an image side; the zoom lens being capable of zooming from a short-focal end to a long-focal end and correcting image surface changes in accordance with the zooming by means of moving at least one of said second lens group and said third lens group; said first lens group comprises a first lens having a negative refractive power and a prism having a negative refractive power for changing a incident light path, arranged in order from the object side to the image side, said second lens group comprising a single second lens, and said third lens group comprising a single third lens.