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US 7,095,565 B2Granted
Zoom lens unit and image pickup apparatus
AssigneeKabushiki Kaisha Toshiba
InventorsAkihiro Koga, Yasuo Shima, Toshikatsu Akiba
Life of this patent
Estimating the term…
Abstract
In a zoom lens unit, substrate are arranged to be faced to each other and are provided with first driving electrodes used to drive a first movable section and second driving electrodes used to drive a second movable section, respectively. A recessed portion is formed in the first movable section so as to face the second driving electrodes. A recessed portion is also formed in the second movable section so as to face the first driving electrodes. The first and second movable sections can be independently controlled to achieve a zoom operation.
Claims18
A zoom lens unit comprising:
- a stator frame;
- a first movable section having a first recessed portion and received in the stator frame, which is guided in the stator frame so as to be movable along a predetermined direction;
- a second movable section having a second recessed portion and received in the stator frame, which is guided in the stator frame so as to be movable along the predetermined direction independent from a movement of the first movable section;
- first and second lenses mounted on the first and second movable sections, respectively, an image of a subject being transferred by the first and second lenses;
- first and second substrates arranged in the stator frame so as to be faced each other;
- a first holding electrode provided on the first substrate to attract and hold the first movable section;
- a second holding electrode provided on the first substrate to attract and hold the second movable section;
- first driving electrodes provided on the second substrate at a predetermined pitch in the predetermined direction so as to drive the first movable section, the first driving electrodes being arranged to face the second recessed portion;
- and
- second driving electrodes provided on the second substrate at a predetermined pitch in the predetermined direction so as to drive the second movable section, the second driving electrodes being electrically separated from the first driving electrodes and being arranged to face the first recessed portion.
7 more elements
A zoom lens unit comprising:
- a stator frame;
- a first movable section having a first recessed portion and received in the stator frame, which is guided in the stator frame so as to be movable along a predetermined direction;
- a second movable section having a second recessed portion and received in the stator frame, which is guided in the stator frame so as to be movable along the predetermined direction independent from a movement of the first movable section;
- first and second lenses mounted on the first and second movable sections, respectively, an image of a subject being transferred by the first and second lenses;
- first and second substrates arranged in the stator frame so as to be faced each other;
- a first holding electrode provided on the first substrate to attract and hold the second movable section;
- a second holding electrode provided on the second substrate to attract and hold the first movable section;
- first driving electrodes provided on the second substrate at a predetermined pitch in the predetermined direction so as to drive the second movable section, the first driving electrodes being electrically separated from the second holding electrode and being arranged to face the first recessed portions;
- and
- second driving electrodes provided on the first substrate at a predetermined pitch in the predetermined direction so as to drive the first movable section, the second driving electrodes being electrically separated from the first holding electrodes and being arranged to face the second recessed portions.
7 more elements
A zoom lens unit comprising:
- a stator frame;
- a first movable section received in the stator frame, which is guided in the stator frame so as to be movable in a predetermined direction;
- a second movable section received in the stator frame, which is guided in the stator frame so as to be movable in the predetermined direction independently of the first movable section;
- first and second lenses mounted on the first and second movable sections, respectively, an image of a subject being transferred by the first and second lenses;
- first and second substrates arranged in the stator frame so as to be faced each other, the second substrate having a surface including first, second and third areas, the first area is defined in a range within which the first movable section moves, the second area is defined in a range within which the second movable section moves, and the third area is defined between the first and second areas in a range within which the first and second movable sections are movable, respectively;
- a first holding electrode provided on the first substrate so as to attract and hold the first movable section;
- a second holding electrode provided on the first substrate so as to attract and hold the second movable section, the second holding electrode being electrically separated from the first holding electrode;
- first driving electrodes provided in the first area of the second substrate at a predetermined pitch in the predetermined direction so as to drive the first movable section;
- second driving electrodes provided in the second area of the second substrate at a predetermined pitch in the predetermined direction so as to drive the second movable section, the second driving electrodes being electrically separated from the first driving electrodes;
- and
- third driving electrodes provided in the third area of the second substrate at a predetermined pitch in the predetermined direction so as to selectively drive the first and second movable sections, the third driving electrodes being electrically separated from the first and second driving electrodes.
8 more elements
Dependencies are inferred from the claim text.