Patent US3744388A successfully refreshed from Google Patents.
US3744388A
Expired / Lapsed
US
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Film processing apparatus for use with a photographic camera
Assignee: Polaroid Corp
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Filing: 1971-12-20
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Granted: 1973-07-10
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Expires: 1991-12-20
Abstract
Abstract The present invention envisions a reflex camera having a specular surface within the optical path of the film plane. An operator mechanism positions a viewing surface closely proximate the film plane for focusing purposes and in a subsequent exposure mode positions a reflective surface within the optical path in a position causing a coincidence of a focal plane with the film plane. Means are provided for receiving and storing energy for positioning the viewing surface proximate the film plane and for positioning said reflective surface within the optical path in said exposure mode. The camera further includes a fixed specular surface which, in the focusing mode, is positioned in the optical path to the viewing surface and said viewing surface is brought into spaced parallel relation to said fixed specular surface during the exposure mode. The camera includes a support for locating a film-advancing apparatus for engaging and moving the film unit, subsequent to exposure, from its exposure position into the bite of a pair of processing rolls. A novel mechanism transfers, to said film-advancing apparatus, a portion of the energy being supplied to said energy storage means to position said viewing surface.
Inventors
- 👤 I Erlichman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:47
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52; G03B19/00; G03B19/02; G03B19/12
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
197 words
A photographic camera of the type comprising means for supporting a photosensitive material at an exposure plane; lens means for focusing the image of a subject at a focal plane; movable reflex means for establishing said focal plane at said exposure plane when in an exposure mode; and fixed reflex means cooperating with said movable reflex means for establishing said focal plane at a viewing surface proximate said exposure plane when in a focusing mode; further including: motor means; energy storage means operably connected to said motor means for receiving and storing energy therefrom; an erecting mechanism operably connected to said movable reflex means and to said energy storage means for receiving energy from said storage means for both moving said movable reflex member from a first position whereat said focal plane is at said viewing surface to a second position whereat said focal plane is established at said exposure plane and thence back to said first position; and means connected to said erecting mechanism and structurally independent from said movable reflex means for receiving energy directly from said erecting mechanism as said movable reflex means approaches said first position to thereby decelerate said movable reflex means.
Claim 2
Dependent Claim
197 words
A photographic camera of the type comprising means for supporting a photosensitive material at an exposure plane; lens means for focusing the image of a subject at a focal plane; movable reflex means for establishing said focal plane at said exposure plane when in an exposure mode; and fixed reflex means cooperating with said movable reflex means for establishing said focal plane at a viewing surface proximate said exposure plane when in a focusing mode; further including: motor means; energy storage means operably connected to said motor means for receiving and storing energy therefrom; an erecting mechanism operably connected to said movable reflex means and to said energy storage means for receiving energy from said storage means for both moving said movable reflex member from a first position whereat said focal plane is at said viewing surface to a second position whereat said focal plane is established at said exposure plane and thence back to said first position; and means connected to said erecting mechanism and structurally independent from said movable reflex means for receiving energy directly from said erecting mechanism as said movable reflex means approaches said first position to thereby decelerate said movable reflex means.
Claim 3
Dependent Claim
45 words
The invention as recited in claim 1, further including: means for performing a function associated with the processing of a film unit and wherein said structurally independent energy absorbing means is operably connected to said function performing means to provide energy for performing said function.
Claim 4
Dependent Claim
36 words
The invention as delineated in claim 2, further including a processing station and wherein said function comprises advancing said photosensitive material to said processing station whilst said movable reflex member is returning to said first position.
Claim 5
Dependent Claim
48 words
The invention as set forth in claim 3, wherein said processing station includes a pair of processing rolls and wherein said function performing means comprises film picking means adapted to engage an end portion of said photosensitive material and advance same into the bite of said processing rolls.
Claim 6
Dependent Claim
31 words
The invention as described in claim 4, wherein said erecting mechanism includes first cam means and said function performing means further includes second cam means connected to said first cam means.
Claim 7
Dependent Claim
35 words
The invention as described in claim 5, wherein said picking means includes a rack and further including sector gear means connected to said rack and cooperable with said second cam means to perform said function.
Claim 8
Dependent Claim
33 words
The invention as delineated in claim 6, wherein said rack is connected to spring means such that performing said function will bias said spring means to return said rack to an initial position.
Claim 9
Dependent Claim
17 words
The invention as set forth in claim 7, wherein said sector gear means includes a cam follower
Claim 10
Dependent Claim
143 words
A photographic camera of the type comprising means for supporting a photosensitive material at an exposure plane; lens means for focusing the image of a subject at a focal plane; a viewing surface; and movable reflex means cooperable with said lens means in establishing said focal plane at said viewing surface and movable between first and second positions; further including: means connected to said movable reflex member and in continuous engagement therewith for effecting the movement of same between said first and second positions; energy supplying means connected to said movement effecting means for supplying energy thereto sufficient to move said movable reflex member between said first and second positions; and means connected to said movement effecting means and continuously out of contact with said movable reflex member for absorbing energy from said energy supplying means to thereby decelerate said movable reflex member.
Claim 11
Dependent Claim
143 words
A photographic camera of the type comprising means for supporting a photosensitive material at an exposure plane; lens means for focusing the image of a subject at a focal plane; a viewing surface; and movable reflex means cooperable with said lens means in establishing said focal plane at said viewing surface and movable between first and second positions; further including: means connected to said movable reflex member and in continuous engagement therewith for effecting the movement of same between said first and second positions; energy supplying means connected to said movement effecting means for supplying energy thereto sufficient to move said movable reflex member between said first and second positions; and means connected to said movement effecting means and continuously out of contact with said movable reflex member for absorbing energy from said energy supplying means to thereby decelerate said movable reflex member.
Claim 12
Dependent Claim
50 words
The invention as described in claim 9, further including: means for performing a function associated with the processing of a film unit and wherein said energy absorbing means is operably connected to said function performing means to provide at least a portion of the energy required for performing said function.
Claim 13
Dependent Claim
26 words
The invention as set forth in claim 10, further including a processing station and wherein said function comprises advancing said photosensitive material to said processing station.
Claim 14
Dependent Claim
35 words
The invention as delineated in claim 11, wherein said function performing means is cooperable with said energy absorbing means for effecting said function whilst said movable reflex member moves between said first and second positions.
Claim 15
Dependent Claim
46 words
The invention as described in claim 12, wherein said processing station includes a pair of processing rolls and wherein said function performing means includes film-advancing means adapted to engage an end portion of said photosensitive material and advance same into the bite of said processing rolls.
Claim 16
Dependent Claim
32 words
The invention as recited in claim 13, wherein said movement effecting means includes first cam means and said function performing means further includes second cam means connected to said first cam means.
Claim 17
Dependent Claim
35 words
The invention as described in claim 14, wherein said film-advancing means includes a rack and further including sector gear means connected to said rack and cooperable with said second cam means to perform said function.
Claim 18
Dependent Claim
34 words
The invention as set forth in claim 15, wherein said rack is connected to spring means such that performing said function will bias said spring means to return said rack to an initial position.
Claim 19
Dependent Claim
65 words
The invention as delineated in claim 16, wherein said sector gear means includes a cam follower portion in engagement with said second cam means and further including means for effecting disengagement of said sector gear means and said cam follower portion from said second cam means after completion of said function whereby said rack may be returned to said initial position by said spring means.
Claim 20
Dependent Claim
38 words
The invention as described in claim 9, wherein said energy supplying means includes energy storage means for receiving and storing energy sufficient to both move said movable reflex member and perform at least a portion of said function.
Claim 21
Dependent Claim
42 words
The invention as set forth in claim 18, wherein said energy supplying means includes motor means connected to said energy storage means for transferring energy thereto and to said processing station for supplying energy thereto to effect processing of said photosensitive material.
Claim 22
Dependent Claim
222 words
A reflex camera, including: a housing; a stationary reflex mirror secured within said housing for imaging light from a subject to a focal plane; means within said housing for defining an exposure plane; support means connected to said housing; a planar member having a reflective viewing screen on one surface thereof and a reflex mirror on the opposite surface thereof, said planar member being articulately connected to said support means and movable from a first position proximate said exposure plane to a second position overlying said stationary reflex mirror; first cam means secured to a shaft rotatably supported by said support means; first cam follower means connected to said aRticulating planar member and in engagement with said first cam means; second cam means connected to said first cam means for movement therewith; a spring motor operably connected to said shaft to effect the rotation of same and the movement of said articulately connected member from said first position to said second position and thence to said first position; a processing station; second cam follower means connected to said second cam means; and film unit advancing means connected to said second cam follower means and adapted to advance a film unit from an initial position to said processing station whilst said planar member is moving from said second position to said first position.
Claim 23
Dependent Claim
222 words
A reflex camera, including: a housing; a stationary reflex mirror secured within said housing for imaging light from a subject to a focal plane; means within said housing for defining an exposure plane; support means connected to said housing; a planar member having a reflective viewing screen on one surface thereof and a reflex mirror on the opposite surface thereof, said planar member being articulately connected to said support means and movable from a first position proximate said exposure plane to a second position overlying said stationary reflex mirror; first cam means secured to a shaft rotatably supported by said support means; first cam follower means connected to said aRticulating planar member and in engagement with said first cam means; second cam means connected to said first cam means for movement therewith; a spring motor operably connected to said shaft to effect the rotation of same and the movement of said articulately connected member from said first position to said second position and thence to said first position; a processing station; second cam follower means connected to said second cam means; and film unit advancing means connected to said second cam follower means and adapted to advance a film unit from an initial position to said processing station whilst said planar member is moving from said second position to said first position.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |