Patent Number: 8,089,553

Title: Lens drive device, image pickup device and lens drive method

Abstract: A lens drive device in at least one lens barrel holding a lens moveably includes a motor to drive the lens; an acceleration detection section to detect an acceleration; and an output control section to control an output of the motor corresponding to the acceleration detected by the acceleration detection section. The output control section determines whether the acceleration detected by the acceleration detection section falls within a predetermined acceleration range or not. When the acceleration is determined to be within the range, a further determination of whether the lens drive device is in a stationary state is performed. When it is determined not being in the stationary state, the motor is driven by a maximum drive voltage. When it is determined being in the stationary state, a further determination of whether the posture is horizontal or not is performed.

Inventors: Suzuki; Yohsuke (Yokohama, JP), Yasuda; Takuroh (Tokyo, JP), Ito; Kaoru (Yokohama, JP), Nuno; Katsuhiko (Yokosuka, JP)

Assignee: Ricoh Company, Ltd.

International Classification: G03B 13/24 (20060101); G03B 17/00 (20060101); H04N 5/228 (20060101)

Expiration Date: 2020-01-03 0:00:00