Patent ID: 6701070
Filing Date: 2004-03-02
Classification: G03B

Abstract:
An aperture stop changing device for a camera, said camera including a preset open aperture disposed on an exposure light path, and a taking lens comprising first and second lens elements disposed in said light path, said aperture stop changing device comprising:an aperture changing plate, including a stop-down opening having a smaller diameter than said preset open aperture, disposed close to said taking lens, being movable between a small diameter position and a large diameter position, wherein said stop-down opening, when said aperture changing plate is in said small diameter position, is set in said light path, and when said aperture changing plate is in said large diameter position, is set away from said light path; and a spacer sandwiched between the first and second lens elements for defining a space to contain said aperture changing plate, said spacer having a first cutout for partially receiving said aperture changing plate moving between said small and large diameter positions.