Patent US5946445A successfully refreshed from Google Patents.
Patent US4544842A successfully refreshed from Google Patents.
US4544842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document scanning apparatus comprising a light conductor block
Assignee: TRIUMPH-ADLER AG fur BURO - und INFORMATIONSTECHNIK
•
Filing: 1983-03-23
•
Granted: 1985-10-01
•
Expires: 2003-03-23
Abstract
Abstract An arrangement of light wave conductors are correlated with the sensor areas of an image sensor array. The individual light wave conductors consist of glass wafers or glass fibers whose width or diameter each corresponds to the width of a sensor area. The light wave conductors are joined to form a block whose top surface area corresponds to the area of a document to be scanned line by line.
Inventors
- 👤 Detlef Engemann
- 👤 Dieter Fischer
- 👤 Karl-Heinz Vatterott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:22
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/024; H04N1/028; H04N1/03; H04N1/031; G; G02; G02B; G02B6/00; G02B6/04; G02B6/06; G02B6/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
159 words
Document scanning appartus for supporting and scanning a stationary document comprising a stationary light conductor block having a top side whose length and width corresponds to that of a document for directly supporting said document thereon for scanning, said light conductor block comprising a plurality of joined light conductors oriented to transmit light in vertical planes, a line array of image sensors spaced from the underside of said light conductor block for movement along and parallel to the underside of said light conductor block in direction of the length of said light conductor block, each of said light conductors having a width corresponding to the width of an image sensor in said line array, and a light source movable together with said line array of image sensors and positioned to illuminate a strip of said supported document opposite said line array of image sensors and having a height corresponding to the length of image sensors in said line array.
Claim 2
Dependent Claim
159 words
Document scanning appartus for supporting and scanning a stationary document comprising a stationary light conductor block having a top side whose length and width corresponds to that of a document for directly supporting said document thereon for scanning, said light conductor block comprising a plurality of joined light conductors oriented to transmit light in vertical planes, a line array of image sensors spaced from the underside of said light conductor block for movement along and parallel to the underside of said light conductor block in direction of the length of said light conductor block, each of said light conductors having a width corresponding to the width of an image sensor in said line array, and a light source movable together with said line array of image sensors and positioned to illuminate a strip of said supported document opposite said line array of image sensors and having a height corresponding to the length of image sensors in said line array.
Claim 3
Dependent Claim
19 words
Document scanning apparatus as recited in claim 1, said light conductors comprising glass wafers vertically joined face to face.
Claim 4
Dependent Claim
14 words
Document scanning apparatus as recited in claim 2, said glass wafers having mirrored faces.
Claim 5
Dependent Claim
30 words
Document scanning apparatus as recited in claim 2, said image sensor array being spaced from the underside of said block by a distance twice the width of an image sensor.
Claim 6
Dependent Claim
14 words
Document scanning apparatus as recited in claim 1, said light conductors comprising glass fibers.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-30 | 1989-04-01 | 1989-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-30 | 1993-04-01 | 1993-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-30 | 1997-04-01 | 1997-10-01 | $7700.00 | Window Closed / Lapsed |