US4193675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic camera
Assignee: Polaroid Corp
•
Filing: 1977-08-15
•
Granted: 1980-03-18
•
Expires: 1997-08-15
Abstract
Abstract Photographic apparatus having an optical system which in a first mode of operation functions to image a subject upon a film plane so as to be geometrically reversed along only one axis of the film plane and in a second mode of operation functions to image the subject on the film plane so as to be geometrically reversed along each of two orthogonal axes, the particular mode being dependent upon the type of film unit being exposed.
Inventors
- 👤 William T. Plummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:13
CPC Classifications
G; G02; G02B; G02B3/00; G02B3/02; G02B3/06; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52; G03B19/00; G03B19/02; G03B19/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
265 words
Photographic apparatus of the self-developing type for use with film units requiring an even number of geometrical reversals and with film units requiring an odd number of geometrical reversals to provide a geometrically non-reversed positive image in the film unit, comprising: means defining first and second chambers for locating film units in position for exposure; pressure-applying means including at least two juxtaposed members for spreading a processing fluid across a photosensitive layer of the film unit as it is moved therebetween subsequent to exposure; lens means for geometrically reversing an image of a subject along two orthogonal axes; optical means for geometrically reversing the image of the subject along only one of said orthogonal axes; means for changing the relative position of said lens means and said optical means between a first orientation wherein said lens means and said optical means are in optical alignment with each other when the film unit requires an odd number of geometrical reversals and a second orientation wherein said lens means and said optical means are out of optical alignment with each other when the film unit requires an even number of geometrical reversals; and means for mounting at least one of said juxtaposed members for movement between a first position wherein it cooperates with the other member to receive an exposed film unit therebetween as it is moved away from its exposure position within said first chamber and a second position wherein it cooperates with said other member to receive an exposed film unit therebetween as it is moved away from its exposure position within said second chamber.
Claim 2
Dependent Claim
265 words
Photographic apparatus of the self-developing type for use with film units requiring an even number of geometrical reversals and with film units requiring an odd number of geometrical reversals to provide a geometrically non-reversed positive image in the film unit, comprising: means defining first and second chambers for locating film units in position for exposure; pressure-applying means including at least two juxtaposed members for spreading a processing fluid across a photosensitive layer of the film unit as it is moved therebetween subsequent to exposure; lens means for geometrically reversing an image of a subject along two orthogonal axes; optical means for geometrically reversing the image of the subject along only one of said orthogonal axes; means for changing the relative position of said lens means and said optical means between a first orientation wherein said lens means and said optical means are in optical alignment with each other when the film unit requires an odd number of geometrical reversals and a second orientation wherein said lens means and said optical means are out of optical alignment with each other when the film unit requires an even number of geometrical reversals; and means for mounting at least one of said juxtaposed members for movement between a first position wherein it cooperates with the other member to receive an exposed film unit therebetween as it is moved away from its exposure position within said first chamber and a second position wherein it cooperates with said other member to receive an exposed film unit therebetween as it is moved away from its exposure position within said second chamber.
Claim 3
Dependent Claim
320 words
Photographic apparatus of the self-developing type for use with film units requiring an even number of geometrical reversals and with film units requiring an odd number of geometrical reversals to provide a geometrically non-reversed positive image in the film unit, comprising: means for defining first and second chambers for locating first and second film units, respectively, in position for exposure; pressure-applying means including at least a pair of rollers for spreading a processing fluid across a photosensitive layer of the film unit as it is moved therebetween subsequent to exposure; film-advancing means mounted in position to engage a film unit when located in position for exposure and advance it away from said exposure position and into engagement with said pressure-applying means; lens means for geometrically reversing an image of a subject along two orthogonal axes; reflecting means for geometrically reversing the image of the subject along only one of said orthogonal axes; means for changing the relative position of said lens means and said reflecting means between a first orientation wherein said lens means and said reflecting means are in optical alignment with each other when the film unit requires an odd number of geometrical reversals and a second orientation wherein said lens means and said reflecting means are out of optical alignment with each other when the film unit requires an even number of geometrical reversals; manually operable means coupled to said reflecting means for moving said reflecting means between said first and second positions; and means for mounting at least one of said rollers for movement between a first position wherein it cooperates with the other roller to receive an exposed film unit therebetween as it is moved away from its exposure position within said first chamber and a second position wherein it cooperates with said other roller to receive an exposed film unit therebetween as it is moved away from its exposure position within said second chamber.
Claim 4
Dependent Claim
320 words
Photographic apparatus of the self-developing type for use with film units requiring an even number of geometrical reversals and with film units requiring an odd number of geometrical reversals to provide a geometrically non-reversed positive image in the film unit, comprising: means for defining first and second chambers for locating first and second film units, respectively, in position for exposure; pressure-applying means including at least a pair of rollers for spreading a processing fluid across a photosensitive layer of the film unit as it is moved therebetween subsequent to exposure; film-advancing means mounted in position to engage a film unit when located in position for exposure and advance it away from said exposure position and into engagement with said pressure-applying means; lens means for geometrically reversing an image of a subject along two orthogonal axes; reflecting means for geometrically reversing the image of the subject along only one of said orthogonal axes; means for changing the relative position of said lens means and said reflecting means between a first orientation wherein said lens means and said reflecting means are in optical alignment with each other when the film unit requires an odd number of geometrical reversals and a second orientation wherein said lens means and said reflecting means are out of optical alignment with each other when the film unit requires an even number of geometrical reversals; manually operable means coupled to said reflecting means for moving said reflecting means between said first and second positions; and means for mounting at least one of said rollers for movement between a first position wherein it cooperates with the other roller to receive an exposed film unit therebetween as it is moved away from its exposure position within said first chamber and a second position wherein it cooperates with said other roller to receive an exposed film unit therebetween as it is moved away from its exposure position within said second chamber.
References Cited (Backward Citations)
US2324076A
Cited
US882762A
Cited
US1842561A
Cited
US2018891A
Cited
US2081329A
Cited
US2434378A
Cited
US2592524A
Cited
FR1024444A
Cited
US2764065A
Cited
US3575081A
Cited
US3643570A
Cited
US3608456A
Cited
US3800309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-18 | 1983-09-17 | 1984-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-18 | 1987-09-17 | 1988-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-18 | 1991-09-17 | 1992-03-18 | $7700.00 | Window Closed / Lapsed |