US5012273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens shutter type of camera including zoom lens
Assignee: Pentax Corp
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Filing: 1990-02-14
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Granted: 1991-04-30
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Expires: 2010-02-14
Abstract
Abstract A lens shutter type of camera is disclosed in which a zoom lens is positioned in a lens block (1) which has a sector gear (15) rotatably associated with the lens block and with a rotatable cam ring (14). The cam ring and sector gear are rotatable in a substantially constant axial position. A movable finder optical assembly (8) and a movable strobe assembly (9) are movable in association with movement of the zoom lens. The zoom lens is movable between an extreme telephoto position and an extreme wide angle position, as well a into a fully collapsed lens position beyond the extreme wide angle position and a macro or closeup photographing position beyond the extreme telephoto position. When the camera is in its macro mode, a prism (P1) is inserted into the finder optical assembly to correct for parallax; the strobe assembly is moved to change its illumination angle; and an optical wedge (4e) is pivoted into the path between a light receiver (4) and a light emitter (3e). A single cam plate (53) is provided to move the finder assembly and the strobe assembly. The photographic aperture (22b) can be selectively closed by barrier plates (31a) when the zoom lens is moved into its fully collapsed position. A light intercepting assembly (210) is provided for preventing light from entering the photographic optical assembly via cam grooves (20 and 21). This intercepting assembly includes a flexible code plate (90) which surrounds a peripheral portion of the cam ring (14) and which provides positional information relating to the position of the zoom lens.
Inventors
- 👤 Susao Nakamura
- 👤 Etsuro Nishio
- 👤 Haruo Ishii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:21
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/04; G02; G02B; G02B7/00; G02B7/02; G02B7/04; G02B7/10; G02B7/102; G03B13/00; G03B13/02; G03B13/10; G03B13/12; G02B23/00; G02B23/14; G02B23/145; G03B2215/00; G03B2215/05; G03B2215/0503; G03B2217/00; G03B2217/002
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
57 words
In a lens shutter type of camera having a flexible printed circuit board (FPC) for conducting camera operational signals from a camera body to a shutter block attached to an axially movable lens barrel, a guide plate for said FPC, said guide plate comprising means for guiding movement of said FPC as said lens barrel moves axially.
Claim 2
Dependent Claim
57 words
In a lens shutter type of camera having a flexible printed circuit board (FPC) for conducting camera operational signals from a camera body to a shutter block attached to an axially movable lens barrel, a guide plate for said FPC, said guide plate comprising means for guiding movement of said FPC as said lens barrel moves axially.
Claim 3
Dependent Claim
32 words
A guide plate in accordance with claim 1, said guide plate having a front end attached to said shutter block of said camera and a rear end attached to said camera body.
Claim 4
Dependent Claim
20 words
A guide plate in accordance with claim 2, said front and rear plate ends each comprising a bent guide portion.
Claim 5
Dependent Claim
42 words
A guide plate in accordance with claim 1, said guide plate having an inner surface against which said FPC is positioned, said inner surface comprising at least one stationary pin around which at least a portion of said FPC is immovably positioned.
Claim 6
Dependent Claim
53 words
A guide plate in accordance with claim 4 in combination with an FPC, said guide plate having a second pin about which said FPC is movably positioned, said first pin being located adjacent a first end of said guide plate and said second pin being located between first and second guide plate ends.
Claim 7
Dependent Claim
28 words
A guide plate in accordance with claim 1, said guide plate further comprising means for separating said FPC from a rotatable cam ring positioned about said barrel lens.
Claim 8
Dependent Claim
45 words
A lens shutter type of camera having a flexible printed circuit board (FPC) for conducting operational signals from a camera body to a shutter block attached to an axially movable lens barrel, and further comprising an anti-reflection device attached to said flexible printed circuit board.
Claim 9
Dependent Claim
45 words
A lens shutter type of camera having a flexible printed circuit board (FPC) for conducting operational signals from a camera body to a shutter block attached to an axially movable lens barrel, and further comprising an anti-reflection device attached to said flexible printed circuit board.
Claim 10
Dependent Claim
13 words
A camera in accordance with claim 7, said FPC board comprising synthetic resin.
Claim 11
Dependent Claim
50 words
A camera in accordance with claim 8, wherein said device comprises an anti-reflection layer attached to at lest one surface of said FPC board, said at least one surface being located adjacent to the optical axis of said photographic lens assembly when said board is attached to said shutter block.
Claim 12
Dependent Claim
50 words
A camera in accordance with claim 8, wherein said device comprises an anti-reflection coating secured to at least one surface of said FPC board, said at least one surface being located adjacent to the optical axis of said photographic lens assembly when said board is attached to said shutter block.
Claim 13
Dependent Claim
55 words
A camera in accordance with claim 8, wherein said device comprises a dull-finish black paper comprising a synthetic resin and attached to at least one surface of said FPC board, said at least one surface being adjacent to the optical axis of said photographic lens assembly when said board is attached to said shutter block.
Claim 14
Dependent Claim
60 words
A camera comprising a camera body and a lens barrel movably attached thereto, said barrel containing a lens group defining an optical axis and a flexible printed circuit board for conducting operational signals between said body and said barrel, said camera including means for preventing reflection of light from said flexible printed circuit board towards said lens group optical axis.
Claim 15
Dependent Claim
60 words
A camera comprising a camera body and a lens barrel movably attached thereto, said barrel containing a lens group defining an optical axis and a flexible printed circuit board for conducting operational signals between said body and said barrel, said camera including means for preventing reflection of light from said flexible printed circuit board towards said lens group optical axis.
Claim 16
Dependent Claim
21 words
A camera in accordance with claim 12, wherein said means for preventing reflection is attached to said flexible printed circuit board.
Claim 17
Dependent Claim
27 words
A camera in accordance with claim 13, wherein said means for preventing reflection comprises an anti-reflection layer attached to a surface of said flexible printed circuit board.
Claim 18
Dependent Claim
26 words
A camera in accordance with claim 13, wherein said means for preventing reflection comprises an anti-reflection coating on a surface of said flexible printed circuit board.
Claim 19
Dependent Claim
29 words
A camera in accordance with claim 13, wherein said means for preventing reflection comprises a dull finish black paper attached to a surface of said flexible printed circuit board.
Claim 20
Dependent Claim
80 words
A flexible printed circuit board connected between relatively movable first and second operational members of a camera, said flexible printed circuit board having a serpentine folded section enabling said flexible circuit board to follow movement of said members between retracted and extended positions, and means for guiding movement of said flexible printed circuit board between said positions, said guide means comprising a smoothly curved first guide portion positioned within at least one serpentine fold of said flexible printed circuit board.
Claim 21
Dependent Claim
80 words
A flexible printed circuit board connected between relatively movable first and second operational members of a camera, said flexible printed circuit board having a serpentine folded section enabling said flexible circuit board to follow movement of said members between retracted and extended positions, and means for guiding movement of said flexible printed circuit board between said positions, said guide means comprising a smoothly curved first guide portion positioned within at least one serpentine fold of said flexible printed circuit board.
Claim 22
Dependent Claim
26 words
A flexible printed board in accordance with claim 17, said guide means comprising means for separating said flexible printed circuit board from a third movable member.
Claim 23
Dependent Claim
35 words
A flexible printed circuit board in accordance with claim 17, wherein said first operational member comprises a camera body and said second operational member comprises a camera lens barrel movable relative to said camera body.
Claim 24
Dependent Claim
22 words
A flexible printed circuit board in accordance with claim 18, wherein said guiding means is positioned between said second and third members.
Claim 25
Dependent Claim
45 words
A flexible printed circuit board in accordance with claim 20, wherein said second member comprises an annular lens barrel, said third member comprises an annular cam ring, and said guide means is positioned in an annular space between said cam ring and said lens barrel.
Claim 26
Dependent Claim
27 words
A flexible printed circuit board in accordance with claim 18, wherein said third member is a cam ring movable relative to both said first and second members.
Claim 27
Dependent Claim
24 words
A flexible printed circuit board in accordance with claim 17, wherein said first guide portion is positioned at one end of said guide means.
Claim 28
Dependent Claim
30 words
A flexible printed circuit board in accordance with claim 23, further including a second guide portion positioned at an end of said guide means opposite from said first guide portion.
Claim 29
Dependent Claim
37 words
A flexible printed circuit board in accordance with claim 24, wherein said first guide portion comprises a first guide roller, said guide means further comprising a second guide roller positioned intermediate said first and second guide portions.
Claim 30
Dependent Claim
39 words
A flexible printed circuit board in accordance with claim 17, wherein said guide portion comprises first and second spaced rollers with said flexible printed circuit board extending between said rollers, above said first roller and beneath said second roller.
Claim 31
Dependent Claim
77 words
A camera comprising: a camera body; a photographic system arranged for movement with respect to said camera body; control means within said camera body for providing a control signal to said photographic system; flexible control signal conducting means for supplying a control signal from said control means to said photographic system; and guide means mounted to one of said camera body and said photographic system for guiding and flexible control signal conducting means to form overlapping sections.
Claim 32
Dependent Claim
77 words
A camera comprising: a camera body; a photographic system arranged for movement with respect to said camera body; control means within said camera body for providing a control signal to said photographic system; flexible control signal conducting means for supplying a control signal from said control means to said photographic system; and guide means mounted to one of said camera body and said photographic system for guiding and flexible control signal conducting means to form overlapping sections.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-29 | 1994-10-29 | 1995-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-29 | 1998-10-29 | 1999-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-29 | 2002-10-29 | 2003-04-30 | $7700.00 | Window Closed / Lapsed |