Patent US5424796A successfully refreshed from Google Patents.
US5424796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens shutter camera including zoom lens
Assignee: Pentax Corp
•
Filing: 1993-06-04
•
Granted: 1995-06-13
•
Expires: 2013-06-04
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 close-up 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
- 👤 Shigeru Kondoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:20
CPC Classifications
G; G03; G03B; G03B5/00; G03B13/00; G03B13/02; G03B13/10; G03B13/12; G02; G02B; G02B7/00; G02B7/02; G02B7/04; G02B7/10; G02B7/102; G03B17/00; G03B17/02; G03B17/04; G02B23/00; G02B23/14; G02B23/145; G03B2215/00; G03B2215/05; G03B2215/0503; G03B2217/00; G03B2217/002
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
83 words
In a camera including a zoom photographing lens for varying a focal length, a zoom finder device for varying a field of view in accordance with the focal length of said zoom photographing lens, a distance measuring device including a light emitting portion and a light receiving portion, and a single base plate formed separately from a camera body, wherein said photographing lens, said zoom finder device, said light emitting portion, and said light receiving portion are mounted to said single base plate.
Claim 2
Dependent Claim
83 words
In a camera including a zoom photographing lens for varying a focal length, a zoom finder device for varying a field of view in accordance with the focal length of said zoom photographing lens, a distance measuring device including a light emitting portion and a light receiving portion, and a single base plate formed separately from a camera body, wherein said photographing lens, said zoom finder device, said light emitting portion, and said light receiving portion are mounted to said single base plate.
Claim 3
Dependent Claim
22 words
The camera according to claim 1, further comprising a zoom motor for driving said zoom photographing lens and said zoom finder device.
Claim 4
Dependent Claim
36 words
The camera according to claim 2, wherein said zoom motor is mounted on said single base plate together with said zoom photographing lens, said zoom finder device, said light emitting portion, and said light receiving portion.
Claim 5
Dependent Claim
52 words
The camera according to claim 1, said base plate comprising a zoom photographing lens barrel supporting portion positioned in a plane substantially perpendicular to an optical axis of said zoom photographing lens and a zoom finder device supporting portion extending in a plane transverse to said zoom photographing lens barrel supporting portion.
Claim 6
Dependent Claim
21 words
The camera according to claim 4, said zoom finder device supporting portion further comprising means for supporting said distance measuring device.
Claim 7
Dependent Claim
53 words
The camera according to claim 4, further comprising a zoom motor for driving said zoom photographing lens, said single base plate further comprising a zoom motor supporting portion for positioning said zoom motor between said light emitting portion of said distance measuring device and said light receiving portion of said distance measuring device.
Claim 8
Dependent Claim
26 words
The camera according to claim 6, said zoom motor supporting portion extending in a plane substantially perpendicular to the optical axis of said zoom photographing lens.
Claim 9
Dependent Claim
29 words
The camera according to claim 1 said single base plate comprising means for supporting an optical element for selective insertion into an optical axis of said light receiving portion.
Claim 10
Dependent Claim
17 words
The camera according to claim 1, said single base plate comprising means for supporting a strobe assembly.
Claim 11
Dependent Claim
66 words
A support plate for a camera comprising: means for supporting a zoom photographing lens; means for supporting a zoom finder device; and means for supporting a distance measuring device, said distance measuring device comprising a light emitting portion and a light receiving portion; said support plate being formed separately from a camera body and supporting said photographing lens, said zoom finder and said distance measuring device.
Claim 12
Dependent Claim
66 words
A support plate for a camera comprising: means for supporting a zoom photographing lens; means for supporting a zoom finder device; and means for supporting a distance measuring device, said distance measuring device comprising a light emitting portion and a light receiving portion; said support plate being formed separately from a camera body and supporting said photographing lens, said zoom finder and said distance measuring device.
Claim 13
Dependent Claim
26 words
The support plate according to claim 10, further comprising means for supporting a zoom motor for driving said zoom photographing lens and said zoom finder device.
Claim 14
Dependent Claim
15 words
The support plate according to claim 10, further comprising means for supporting a strobe assembly.
Claim 15
Dependent Claim
56 words
The support plate according to claim 10 comprising a first portion for supporting a zoom photographing lens barrel, said first portion extending in a plane substantially perpendicular to an optical axis of the zoom photographing lens and a second portion for supporting a zoom finder device and extending in a plane transverse to said first portion.
Claim 16
Dependent Claim
41 words
The support plate according to claim 13, said support plate further comprising means for supporting a zoom motor to be located between said light emitting portion of said distance measuring device and said light receiving portion of said distance measuring device.
Claim 17
Dependent Claim
27 words
The support plate according to claim 14, further comprising a gear train support portion for supporting a gear train adapted to be driven by said zoom motor.
References Cited (Backward Citations)
US1512664A
Cited
US1701698A
Cited
US2378406A
Cited
US2333827A
Cited
GB863557A
Cited
US2995061A
Cited
US3200699A
Cited
DE1135281B
Cited
US3095794A
Cited
US3267828A
Cited
US3260184A
Cited
US3246590A
Cited
DE2007179C3
Cited
US3701309A
Cited
US3619202A
Cited
US3721492A
Cited
US4132463A
Cited
US3777684A
Cited
US3884555A
Cited
US3809459A
Cited
US3980398A
Cited
US3823638A
Cited
US3893135A
Cited
US4043642A
Cited
US3940777A
Cited
US3972056A
Cited
US3979763A
Cited
US4072971A
Cited
US3978503A
Cited
US4002405A
Cited
US4004852A
Cited
US4122466A
Cited
DE2706551A1
Cited
US4129369A
Cited
US4110769A
Cited
US4171887A
Cited
US4122400A
Cited
US4210387A
Cited
US4219265A
Cited
DE2847319A1
Cited
US4168897A
Cited
US4346967A
Cited
US4627691A
Cited
US4367934A
Cited
US4404595A
Cited
US4397547A
Cited
US4439018A
Cited
US4491396A
Cited
US4445756A
Cited
US4457604A
Cited
US4451129A
Cited
US4443078A
Cited
DE3211557C2
Cited
DE3220265C2
Cited
US4410253A
Cited
US4446526A
Cited
US4531054A
Cited
US4445757A
Cited
US4506959A
Cited
US4525050A
Cited
US4682886A
Cited
US4522478A
Cited
US4523815A
Cited
US4596454A
Cited
US4462666A
Cited
US4508443A
Cited
DE3336265C2
Cited
US4596449A
Cited
US4537487A
Cited
US4609269A
Cited
US4601563A
Cited
US4577944A
Cited
EP0144933B1
Cited
US4669848A
Cited
US4768048A
Cited
US4864338A
Cited
US4582411A
Cited
US4634254A
Cited
US4643555A
Cited
US4771303A
Cited
US4696559A
Cited
US4660954A
Cited
US4699491A
Cited
US5014077A
Cited
US4721972A
Cited
US4652104A
Cited
US4857951A
Cited
US4822153A
Cited
US5150145A
Cited
US5012273A
Cited
US4936664A
Cited
US5142315A
Cited
US4944030A
Cited
US5214462A
Cited
US4944030B1
Cited
US5162831A
Cited
US5016032A
Cited
US5012273B1
Cited
US5157429A
Cited
US4987436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-06-12 | 1998-12-12 | 1999-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-06-12 | 2002-12-12 | 2003-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-06-12 | 2006-12-12 | 2007-06-13 | $7700.00 | Window Closed / Lapsed |