EP0428088A2 - Imprimante électro-optique - Google Patents
Imprimante électro-optique Download PDFInfo
- Publication number
- EP0428088A2 EP0428088A2 EP19900121568 EP90121568A EP0428088A2 EP 0428088 A2 EP0428088 A2 EP 0428088A2 EP 19900121568 EP19900121568 EP 19900121568 EP 90121568 A EP90121568 A EP 90121568A EP 0428088 A2 EP0428088 A2 EP 0428088A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- writing device
- gates
- rows
- light gate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
- B41J2/447—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources
Definitions
- the invention is based on an electro-optical writing device according to the preamble of claim 1.
- Such a writing device is known from DE-OS 37 42 538.
- a color-sensitive medium e.g. a corresponding recording medium
- the color change is carried out by a continuously rotating disc, divided into color sectors, which is arranged in the beam path of the light source illuminating the light gate row.
- the object of the invention is to provide an electro-optical writing device which enables high color true and distortion-free reproduction.
- the advantages achieved by the invention are, in particular, that the exposure areas of the color pixels belonging to one another are almost 100 percent identical, that the raster line spacing is almost equal to the pixel spacing in the line direction, and that recording takes a much shorter time than previously.
- Fig. 1 shows an enlarged and schematic representation of an electro-optical writing device in cross section. It extends in the viewing direction across the width of a record carrier to be labeled, transversely to its feed direction.
- the writing device has a base 1 with a trapezoidal cross-sectional area.
- the inclined side surfaces 1b of the base 1 extend at an angle ⁇ of 30 ° to the bottom surface 1c.
- the base 1 has three longitudinal slots 2 which are long in accordance with the writing line. They are arranged at right angles to the respective trapezoidal surface 1a or 1b so that their center lines 11 intersect in the recording plane 16.
- the recording plane 16 is the surface of a record carrier to be labeled. It can be flat or curved.
- Known light gate rows 10 are arranged on the trapezoidal surfaces 1a and 1b in alignment with the longitudinal slots 2 (DE-OS 37 42 538).
- the base for the light gate rows 10 in each case forms a non-flexible, elongated circuit board part 3 a belonging to a circuit board 3.
- This part has a writing line long slot 4 in the middle.
- a writing line length lead-lanthanum-zirconate-titanate (PLZT) ceramic 5 is arranged on the printed circuit board part 3a in alignment with the slot 4.
- PZT lead-lanthanum-zirconate-titanate
- Flexible printed circuit board parts 3b are connected to the non-flexible printed circuit board part 3a on both longitudinal sides.
- a part of the control circuit, for example driver stages 6, is arranged on these and is connected via flexible conductor tracks 7.
- the flexible partial surfaces 3b of the printed circuit board 3 are bent up by 90 ° in the present example. A smaller angle is possible. It only has to be large enough that the partial surfaces 3b do not interfere with one another in the compact arrangement of three light gate rows 10 shown in FIG. 1.
- gradient index lenses 14 are arranged in the longitudinal slots 2 of the base 1 and consist of a large number of short gradient index fiber pieces. They each have an object distance s to the underside of the PLZT ceramic 5 and to the imaging plane 16.
- An analyzer 13 is arranged below the circuit board part 3 a carrying the PLZT ceramic 5.
- the base 1 including the parts arranged on it is covered in a light-tight manner by a hood 15.
- Line-long polarizers 12 are embedded in the hood 15. These are aligned with the optical axes of the light gate rows 10 which coincide with the center lines 11 of the longitudinal slots 2.
- a different colored light source R, G, B red, green, blue
- R, G, B red, green, blue
- FIG. 2 shows an enlarged section of a light gate line 10 used in the previously described writing device in a top view.
- the latter corresponds to the version as is known from DE-OS 37 42 538.
- the illustration shows the non-flexible circuit board part 3a and the slot 4, which is bridged by the PLZT ceramic 5.
- Open spaces are formed between the laminated conductor tracks 7 and a center electrode 8, which form the light gates 9. They are divided by the center electrode 8 into two rows of light gates 10a and 10b.
- the light gates 9 of a row have the pitch T, which corresponds approximately to twice the width of a light gate 9.
- the light gates 9 of the two rows 10a and 10b are offset from one another by half a pitch T / 2, that is to say they are spaced from one another.
- each raster line is composed of two mutually complementary half lines.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Optical Recording Or Reproduction (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Facsimile Heads (AREA)
- Color Image Communication Systems (AREA)
- Liquid Crystal (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3937736 | 1989-11-13 | ||
| DE3937736A DE3937736A1 (de) | 1989-11-13 | 1989-11-13 | Elektrooptische schreibeinrichtung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0428088A2 true EP0428088A2 (fr) | 1991-05-22 |
| EP0428088A3 EP0428088A3 (en) | 1992-03-11 |
| EP0428088B1 EP0428088B1 (fr) | 1996-02-14 |
Family
ID=6393433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90121568A Expired - Lifetime EP0428088B1 (fr) | 1989-11-13 | 1990-11-10 | Imprimante électro-optique |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5177501A (fr) |
| EP (1) | EP0428088B1 (fr) |
| JP (1) | JPH03176164A (fr) |
| AT (1) | ATE134273T1 (fr) |
| DE (2) | DE3937736A1 (fr) |
| ES (1) | ES2086352T3 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0654356A3 (fr) * | 1993-11-24 | 1998-01-07 | Westinghouse Electric Corporation | Dispositif émettant par la tranche à grande portée |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60005080D1 (de) | 1999-04-28 | 2003-10-16 | Konishiroku Photo Ind | Bildaufzeichnungsgerät |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE231912C (fr) * | 1910-04-23 | 1911-03-03 | ||
| US3401400A (en) * | 1966-10-20 | 1968-09-10 | Phillips Petroleum Co | Apparatus for color display of seismic data |
| US4368963A (en) * | 1978-06-29 | 1983-01-18 | Michael Stolov | Multicolor image or picture projecting system using electronically controlled slides |
| EP0051886A1 (fr) * | 1980-11-10 | 1982-05-19 | Agfa-Gevaert N.V. | Dispositif d'enregistrement |
| JPS57138962A (en) * | 1981-02-23 | 1982-08-27 | Oki Electric Ind Co Ltd | Optical print head |
| JPS57211871A (en) * | 1981-06-23 | 1982-12-25 | Sony Corp | Image reader |
| JPS5814811A (ja) * | 1981-07-20 | 1983-01-27 | Ricoh Co Ltd | 結像光学系 |
| JPS58114978A (ja) * | 1981-12-28 | 1983-07-08 | Seiko Epson Corp | 液晶光学的印写装置 |
| DE3214584C2 (de) * | 1982-04-20 | 1984-05-03 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Elektrooptische Vorrichtung |
| JPS59102420A (ja) * | 1982-12-03 | 1984-06-13 | Tsuchiya Mfg Co Ltd | 積層型フイルタエレメントおよびその製造方法 |
| JPS59128514A (ja) * | 1983-01-14 | 1984-07-24 | Sony Corp | 電気光学シヤツタ− |
| EP0115088B1 (fr) * | 1983-01-21 | 1986-12-30 | Agfa-Gevaert N.V. | Appareil d'enregistrement |
| US4605972A (en) * | 1983-09-05 | 1986-08-12 | Fuji Photo Film Co., Ltd. | Image forming method |
| JPS613764A (ja) * | 1984-06-18 | 1986-01-09 | Fuji Photo Film Co Ltd | 画像出力装置における半導体光源装置 |
| DE3440529A1 (de) * | 1984-11-02 | 1986-05-15 | H. Berthold Ag, 1000 Berlin | Optisches system zur wiedergabe von lichtpunkten |
| JPS6335366A (ja) * | 1986-07-31 | 1988-02-16 | Casio Comput Co Ltd | 記録装置 |
| JPS6349462A (ja) * | 1986-08-19 | 1988-03-02 | Sharp Corp | 液晶プリンタ |
| JPS6354264A (ja) * | 1986-08-26 | 1988-03-08 | Rohm Co Ltd | Ｌｅｄアレイヘツド |
| JPS63270167A (ja) * | 1987-04-30 | 1988-11-08 | Fuji Photo Film Co Ltd | 画像形成方法 |
| JPS63280665A (ja) * | 1987-05-14 | 1988-11-17 | Nec Corp | 液晶プリンタヘッド |
| GB8722946D0 (en) * | 1987-09-30 | 1987-11-04 | Plessey Co Plc | Light emitting diode array |
| DE3742538A1 (de) * | 1987-12-16 | 1989-06-29 | Standard Elektrik Lorenz Ag | Vorrichtung zur farbwiedergabe fuer eine elektrooptische faksimile-schreibeinrichtung |
| US4896168A (en) * | 1988-08-30 | 1990-01-23 | Eastman Kodak Company | Light emitting diode printhead |
-
1989
- 1989-11-13 DE DE3937736A patent/DE3937736A1/de not_active Withdrawn
-
1990
- 1990-10-29 US US07/604,642 patent/US5177501A/en not_active Expired - Fee Related
- 1990-11-10 ES ES90121568T patent/ES2086352T3/es not_active Expired - Lifetime
- 1990-11-10 EP EP90121568A patent/EP0428088B1/fr not_active Expired - Lifetime
- 1990-11-10 AT AT90121568T patent/ATE134273T1/de active
- 1990-11-10 DE DE59010135T patent/DE59010135D1/de not_active Expired - Fee Related
- 1990-11-13 JP JP2306993A patent/JPH03176164A/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0654356A3 (fr) * | 1993-11-24 | 1998-01-07 | Westinghouse Electric Corporation | Dispositif émettant par la tranche à grande portée |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE134273T1 (de) | 1996-02-15 |
| ES2086352T3 (es) | 1996-07-01 |
| JPH03176164A (ja) | 1991-07-31 |
| DE59010135D1 (de) | 1996-03-28 |
| DE3937736A1 (de) | 1991-05-16 |
| EP0428088B1 (fr) | 1996-02-14 |
| US5177501A (en) | 1993-01-05 |
| EP0428088A3 (en) | 1992-03-11 |
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