US4585338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic copying apparatus
Assignee: Agfa Gevaert AG
•
Filing: 1984-10-22
•
Granted: 1986-04-29
•
Expires: 2004-10-22
Abstract
Abstract In a photographic copying apparatus, in which the plane of the original and the plane of the copying material are positioned at the stable distance from each other, an objective has two optical elements which are adjustable relative to a reference position by means of the associated step motors in the axial direction so as to thereby adjust an image scale and a focus distance. A computer for controlling the step motors and two memory devices, connected to the computer, are provided in the apparatus. The data of the objective characteristics are stored in the first memory and specific apparatus data, as well as individual user's data, are programmed by a user and stored in the second memory. The computer controls the step motors in accordance with the capacities of the two memory devices.
Inventors
- 👤 Wilhelm Nitsch
- 👤 Walter Kieslich
- 👤 Helmut Treiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:25
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/34; G02; G02B; G02B7/00; G02B7/02; G02B7/04; G02B7/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
180 words
A photographic copying apparatus, in which a plane of an original and a plane of a copying material are positioned at a stable distance from each other, and comprising an objective including two optical elements each provided with a step motor for adjusting the associated optical element in an axial direction thereof to thereby adjust a focus distance and various image scale in the apparatus; computer means connected to said step motors and controlling the latter through individual correction values of the objective applied into said computer means; a first memory (16a), in which control values for a selected image scale for the adjustment of said optical elements due to calculated data of the objective and actually determined data of the objective are stored; and a second after-programmable memory (18) in which values of user's and apparatus specific data are stored, said computer means being connected to said first memory amd said second memory and operated so as to control said step motors for a selected image scale in accordance with the values stored in said first and second memory.
Claim 2
Dependent Claim
180 words
A photographic copying apparatus, in which a plane of an original and a plane of a copying material are positioned at a stable distance from each other, and comprising an objective including two optical elements each provided with a step motor for adjusting the associated optical element in an axial direction thereof to thereby adjust a focus distance and various image scale in the apparatus; computer means connected to said step motors and controlling the latter through individual correction values of the objective applied into said computer means; a first memory (16a), in which control values for a selected image scale for the adjustment of said optical elements due to calculated data of the objective and actually determined data of the objective are stored; and a second after-programmable memory (18) in which values of user's and apparatus specific data are stored, said computer means being connected to said first memory amd said second memory and operated so as to control said step motors for a selected image scale in accordance with the values stored in said first and second memory.
Claim 3
Dependent Claim
38 words
The copying apparatus as defined in claim 1, wherein said computer means set both said optical elements to an initial position for beginning an adjustment process, and wherein the reference position is always advanced in the same direction.
Claim 4
Dependent Claim
35 words
The copying apparatus as defined in claim 1, wherein said first memory is PROM which is programmed during the manufacture of the objective, said first memory being together with said objective interchangeable in the apparatus.
Claim 5
Dependent Claim
27 words
The copying apparatus as defined in claim 1, wherein said second memory is a magnetic memory which includes correction values effective for the adjustment of the objective.
Claim 6
Dependent Claim
40 words
The copying apparatus as defined in claim 4, wherein said correction values are used for the compensation for the deviations of the position of a platform for the original or a platform for the copying material from a reference position.
Claim 7
Dependent Claim
38 words
The copying apparatus as defined in claim 1, wherein said second memory has a keyboard and is programmable by means of said keyboard by a user with user's specific correction values of the focus and the image scale.
Claim 8
Dependent Claim
38 words
The copying apparatus as defined in claim 4, wherein said second memory has a keyboard and is programmable by means of said keyboard by a user with user's specific correction values of the focus and the image scale.
Claim 9
Dependent Claim
39 words
The copying apparatus as defined in claim 1, wherein said computer means is programmable for an automatic sequence of illuminations of the original with incremental various focus adjustments for a visual evaluation of an optimal value of the adjustment.
References Cited (Backward Citations)
US3832058A
Cited
DE2917176A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |