Title:
DIGITAL CAMERA SYSTEM WITH PIEZOELECTRIC ACTUATORS
Document Type and Number:
WIPO Patent Application WO2003105459
Kind Code:
A3
Abstract:
A digital camera (1) is constructed with multiple lenses (2, 3) mounted in a pair of tubular elements (4, 5) which are nested together for relative axial movement. Movement is provided by piezoelectric actuators (13, 16) mounted externally to a support tube (7) on flexible printed circuit board elements (17, 18). Each lens tube is provided with a drive rail (31, 32) which extends at least partially over the length of the lens tube and projects radially outward from the periphery of each of the tubes. The rails are accessible to the engagement pads of the piezoelectric actuators to allow the transmission of drive force to each of the tubes.
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Inventors:
MATTSSON CHRISTER
JOHANSSON STEFAN
JANSSON ANDERS
JOHANSSON STEFAN
JANSSON ANDERS
Application Number:
PCT/US2003/017696
Publication Date:
March 25, 2004
Filing Date:
June 04, 2003
Export Citation:
Assignee:
NOKIA CORP (FI)
NOKIA INC (US)
NOKIA INC (US)
International Classes:
G02B7/04; G02B7/02; G02B7/08; G02B7/10; G03B17/02; H04N5/225; (IPC1-7): G02B7/02; G02B15/14; G03B17/00; H01L41/08; H04N5/232
Foreign References:
| US5633763A | 1997-05-27 | |||
| US5675444A | 1997-10-07 | |||
| US6392827B1 | 2002-05-21 | |||
| US5587843A | 1996-12-24 |
Other References:
See also references of EP 1552679A4
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