US5500712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and equipment for printing 3-D stereograph
Assignee: Noritsu Koki Co Ltd
•
Filing: 1993-06-29
•
Granted: 1996-03-19
•
Expires: 2013-06-29
Abstract
Abstract A negative detection device comprising the likes of a CCD camera and line sensors is incorporated in a 3D photographic printing apparatus in which a lenticular sheet is used. The negative detection device measures the positional shift of the key subject of the 2D negative. If the key subject shift exceeds a predetermined threshold value, a correction is introduced to regulate the spacial parallax of a background object. If the key subject shift is less than a predetermined threshold value a correction is introduced to regulate the spacial parallax of a foreground object. Exposure is performed after positional adjustments are made.
Inventors
- 👤 Hiroshi Miyawaki
- 👤 Mitsuhiko Itojima
- 👤 Takayuki Oka
- 👤 Kazuyoshi Yamamoto
- 👤 Toshiro Akira
- 👤 Masaaki Tsuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:50
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B35/00; G03B35/14; G03B35/18; G03B35/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A three dimensional (3D) photographic printing method in which a lenticular sheet is used and exposure done, said photographic printing method comprising the steps of: measuring by means of a negative detection device a position shift of a key subject for a multiple of negatives that constitute basic substances for composing a single 3D photograph, the key subject being set on a principal object for photographing; comparing the position shift of a key subject with a predetermined threshold value; introducing a correction for regulating the spacial parallax of a background object in the event that the shift in said key-subject set on the principal object exceeds the threshold value; and introducing a correction for regulating the spacial parallax of a foreground object in the event that the shift in the key-subject set on the principal object is below a threshold value.
Claim 2
Dependent Claim
141 words
A three dimensional (3D) photographic printing method in which a lenticular sheet is used and exposure done, said photographic printing method comprising the steps of: measuring by means of a negative detection device a position shift of a key subject for a multiple of negatives that constitute basic substances for composing a single 3D photograph, the key subject being set on a principal object for photographing; comparing the position shift of a key subject with a predetermined threshold value; introducing a correction for regulating the spacial parallax of a background object in the event that the shift in said key-subject set on the principal object exceeds the threshold value; and introducing a correction for regulating the spacial parallax of a foreground object in the event that the shift in the key-subject set on the principal object is below a threshold value.
References Cited (Backward Citations)
US3895867A
Cited
US3960563A
Cited
US4120562A
Cited
US4101210A
Cited
US4132468A
Cited
JPS587981A
Cited
US4650282A
Cited
US4852972A
Cited
US4800407A
Cited
US4800407B1
Cited
US4903069A
Cited
JPH02248943A
Cited
US5028950A
Cited
US5111236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-03-19 | 1999-09-18 | 2000-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-03-19 | 2003-09-18 | 2004-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-03-19 | 2007-09-18 | 2008-03-19 | $7700.00 | Window Closed / Lapsed |