Patent ID: 6204977
Filing Date: 2001-03-20
Classification: G02B

Abstract:
A lens barrel having a photographing lens, comprising:a first frame having a straight groove, which is parallel to an optical axis of said photographing lens, and a first oblique groove being inclined to said straight groove;a second frame having a first cam follower, which engages with said first oblique groove of said first frame, and a second cam follower; anda third frame having a second oblique groove, which is inclined to the optical axis of said photographing lens and engages with said second cam follower, and a follower engaging with said straight groove of said first frame;wherein said first frame directly transmits a driving force, which is generated by rotation thereof, to said second and third frames, thereby causing said second frame to move rectilinearly and causing said third frame to move rectilinearly with respect to said second frame.