US5453807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens with moveable diaphragm
Assignee: Canon Inc
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Filing: 1994-11-02
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Granted: 1995-09-26
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Expires: 2014-11-02
Abstract
Abstract A lens barrel includes a moving lens arranged to be movable around an optical axis as well as in the direction of the optical axis, an electrically-driven diaphragm device arranged to move around the optical axis as well as in the direction of the optical axis in association with the movement of the moving lens, and a flexible wiring member arranged to electrically connect the electrically-driven diaphragm device to an electric circuit board.
Inventors
- 👤 Toshimi Iizuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:48
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/02; G02B7/04; G02B7/08; G03; G03B; G03B17/00; G03B17/02; G03B17/12; G03B17/14; G03B7/00; G03B7/08; G03B7/10; G03B2217/00; G03B2217/002
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
84 words
A lens barrel comprising: a) a fixed member; b) a moving lens movable in the direction of an optical axis and rotatable around the optical axis relative to said fixed member; c) an electrically-driven diaphragm device arranged to be movable in the direction of the optical axis and rotatable around the optical axis relative to said fixed member in association with the movement of said moving lens; and d) a flexible member for electrically connecting said electrically-driven diaphragm device to an electrical circuit board.
Claim 2
Dependent Claim
84 words
A lens barrel comprising: a) a fixed member; b) a moving lens movable in the direction of an optical axis and rotatable around the optical axis relative to said fixed member; c) an electrically-driven diaphragm device arranged to be movable in the direction of the optical axis and rotatable around the optical axis relative to said fixed member in association with the movement of said moving lens; and d) a flexible member for electrically connecting said electrically-driven diaphragm device to an electrical circuit board.
Claim 3
Dependent Claim
23 words
A lens barrel according to claim 1, wherein said electrically-driven diaphragm device is secured to a holding member which carries said moving lens.
Claim 4
Dependent Claim
28 words
A lens barrel according to claim 1, wherein said moving lens is arranged to perform a focusing action by being displaced in the direction of the optical axis.
Claim 5
Dependent Claim
67 words
A lens barrel according to claim 1, wherein a flexible printed circuit board is employed as said flexible member, and wherein said electrically-driven diaphragm device is arranged to be allowed to move in the direction of the optical axis and around the optical axis by connecting said electrically-driven diaphragm device to said electrical circuit board with said flexible printed circuit board warped approximately into a U shape.
Claim 6
Dependent Claim
22 words
A lens barrel according to claim 1, further comprising a motor which serves as a drive source for moving said moving lens.
Claim 7
Dependent Claim
17 words
A lens barrel according to claim 5, wherein a vibratory wave motor is employed as said motor.
Claim 8
Dependent Claim
23 words
A lens barrel according to claim 3, further comprising a fixed lens disposed in front of said moving lens on the optical axis.
Claim 9
Dependent Claim
58 words
A lens barrel comprising: a fixed member; an electrically-driven diaphragm device arranged to be movable in the direction of an optical axis and rotatable around the optical axis relative to said fixed member in association with the movement of a moving lens; and a flexible member for electrically connecting said electrically-driven diaphragm device to an electrical circuit board.
Claim 10
Dependent Claim
58 words
A lens barrel comprising: a fixed member; an electrically-driven diaphragm device arranged to be movable in the direction of an optical axis and rotatable around the optical axis relative to said fixed member in association with the movement of a moving lens; and a flexible member for electrically connecting said electrically-driven diaphragm device to an electrical circuit board.
Claim 11
Dependent Claim
67 words
A lens barrel according to claim 8, wherein a flexible printed circuit board is employed as said flexible member, and wherein said electrically-driven diaphragm device is arranged to be allowed to move in the direction of the optical axis and around the optical axis by connecting said electrically-driven diaphragm device to said electrical circuit board with said flexible printed circuit board warped approximately into a U shape.
Claim 12
Dependent Claim
19 words
A lens barrel according to claim 8, wherein said electrical circuit board is substantially fixed to said fixed member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-09-25 | 1999-03-27 | 1999-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-25 | 2003-03-27 | 2003-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-25 | 2007-03-27 | 2007-09-26 | $7700.00 | Window Closed / Lapsed |