Compact camera module with stationary actuator for zoom modules with movable shutter and aperture mechanism

US7670067B2 · kind B2 · utility

Assignee

• Digital Imaging Systems GmbH · DE

Inventor

• Hubert Utz · Gilching, DE

Key dates

• Filing date: Nov 28, 2006
• Grant date: Mar 2, 2010
• Expiry date: Mar 6, 2028

Classification

• Technology area (CPC G): Physics
• CPC primary: G03B9/22
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A shutter and aperture device of a miniature digital camera module is coupled to a moveable lens group and is controlled by a horological type stepper motor from a fixed position from outside the moveable lens group. The coupling element between the stepper motor and the shutter device is a mechanical drive apparatus that allows movement of the shutter device along an optical axis before, during and after adjustment of the shutter setting by the stepper motor. The stepper motor is driven with CMOS I/O allowing integration of all control circuitry, image processing circuitry and a pixel photo imager array into a system-on-chip integrated circuit chip.