Development of Compact Actuator Unit for Auto Focus Function in 1,000,000 Pixels Class Camera-equipped Cell-phones

Oct. 3, 2003

Actuator Unit "FCU103"
Actuator Unit "FCU103"

FDK CORPORATION developed the world's smallest compact actuator unit, "FCU103" for auto focus function in 1,000,000 pixels class camera-equipped cell-phones.

Subminiature cameras in 1,000,000 pixels class camera-equipped cell-phones are expected to have auto focus function, such as in short-distance shooting and macro shooting, adjustment of blurred focus, which enable efficient use of mega pixels.

Using compact electromagnetic actuator in the newly developed actuator unit to control the slider, which equips lens minutely and fast inside the unit, and installing the photo-interrupter, which detects the origin of lens, precision focus adjustment was realized. It is the world's smallest actuator unit with a 7.2mm- thickness and 1.7cc capacity for auto focus control. Moreover, the product has cleared continuous driving test 150,000 times and drop test (maximum acceleration 6000G) 30 times. It has excellent performance in endurance and shock resistance. In addition to 1,000,000 pixels class, the product can also apply to next-generation 2,000,000 pixels class cameral-equipped cell-phones.

Sample distribution of the product will begin from January 2004 and 5 billion yen sales are expected in fiscal 2006. The product will be exhibited in "CEATEC JAPAN 2003" in Makuhari Messe from October 7 to October 11, 2003.

* Research by FDK October, 2003

Product name Actuator Unit "FCU103"
Driving power/Voltage 0.38W / 3V
Effective stroke/Resolution 500μm / 10μm
Size (L x W x H) 18mm x 12.8 x 7.2mm
Weight 2.0g
Capacity 1.7cc
Corporate Communication Dept.


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