Patent ID: 7079186

Claim:
A diaphragm device of a lens for a CCTV camera, comprising: a lens barrel; a diaphragm; a base plate which supports said diaphragm; a diaphragm driver for driving said diaphragm to adjust a size of an aperture formed by said diaphragm; an optical filter; and a filter driver for moving said optical filter into and out of an optical path of said lens; wherein said diaphragm is provided on a first side of said base plate and said optical filter is provided on a second side of said base plate which is opposite to said first side of said base plate; wherein said diaphragm is driven by said diaphragm driver independently of the moving of said optical filter by said filter driver; and wherein said diaphragm, said base plate, said diaphragm driver, said optical filter, and said filter driver are provided in said lens barrel.