EP1024960B1 - Vorrichtung zum beschreiben von thermografischem material - Google Patents
Vorrichtung zum beschreiben von thermografischem material Download PDFInfo
- Publication number
- EP1024960B1 EP1024960B1 EP98965136A EP98965136A EP1024960B1 EP 1024960 B1 EP1024960 B1 EP 1024960B1 EP 98965136 A EP98965136 A EP 98965136A EP 98965136 A EP98965136 A EP 98965136A EP 1024960 B1 EP1024960 B1 EP 1024960B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thermographic material
- thermographic
- laser
- lasers
- point
- 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.)
- Expired - Lifetime
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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
- B41J2/475—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 for heating selectively by radiation or ultrasonic waves
- B41J2/4753—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 for heating selectively by radiation or ultrasonic waves using thermosensitive substrates, e.g. paper
Definitions
- the present invention relates to a device for describing thermographic Material according to the preamble of claim 1.
- thermographic material By means of a heating means in the form of a rotatable heating drum to a temperature preheated below a writing temperature of the thermographic material, so that describing the thermographic material due to preheating not taking place.
- the light beam becomes an optical device single laser projected onto the thermographic material.
- the laser comes with modulated an information signal.
- the thermographic material shows one Layer for converting radiation energy into thermal energy. Does the modulated laser beam on this layer, so in the thermographic material generates thermal energy in accordance with the information signal. This is superimposed on the thermal energy generated due to preheating, so that it exceeds the writing temperature of the thermographic material becomes.
- thermographic material with a density variation corresponding to the information signal with which the Laser modulated is generated.
- the darkening of the thermographic material is done line by line, the points of the line being blackened one after the other.
- the optical device for projecting the laser beam contains the thermographic material is a polygon mirror that moves at very high speed is rotated. This will remove the laser beam from the polygon mirror reflected so that the entire line of thermographic material through the laser beam can be blackened.
- the laser beam is from the one end of the line of thermographic material led to the other end.
- the heating drum, and thus also the thermographic material becomes a Row width rotated further.
- EP 0 424 175 A2 describes a device for exposing photosensitive Material known.
- a lens arrangement is attached between the LEDs and the photosensitive material.
- the known exposure device is intended to cause strong fluctuations in intensity between neighboring pixels can be avoided if equal light energy to the pixels of an area of the light sensitive Material was sent out. Describing thermographic material is not possible with such LEDs because of their low light output.
- the present invention is based on the known devices the task of creating a compact device with the simple How a description of thermographic material is made possible.
- thermographic Material for describing thermographic Material is provided with a writing medium that can control a large number of individually Point sources with which the thermographic material after Specification of an information signal can be written point by point.
- thermographic material Due to the device according to the invention, the use of a Polygon mirror are advantageously omitted. Because of the spacing There is no trace of the writing material from the thermographic material direct contact between writing materials and material, causing damage and wear of both writing materials and thermographic Material can be avoided.
- the individually controllable point sources can at least partially at the same time can be controlled so that the thermographic material can be written very quickly is because the points of the thermographic material that the simultaneously controlled point sources are assigned, described almost simultaneously can be. It is also possible to write a longer time to provide a pixel, so that thereby a longer response time for each individual point source of the writing medium for writing of the pixel assigned to it arises. This can advantageously Power provided by each point source to describe its associated pixel must be applied, be kept low, because of the respective Point source is available for a longer time to describe the pixel stands. Furthermore, the necessary response time that the respective Point source needed to react to a changed setting signal, relatively be great. This makes it possible to make the point sources less technically complex to design.
- the individually controllable contain Point sources each have a laser.
- This laser sends the Device according to the invention from a laser beam, which is applied to a layer of thermographic material that hits the radiant energy of the laser beam in Converts thermal energy.
- the use of a laser is advantageous because it can be easily modulated with a setting signal and a sufficient can provide high performance.
- point sources can advantageously be connected in parallel, so that together they describe a single point in the thermographic material.
- the point sources to be provided by the individual point sources connected in parallel Performance for describing the assigned pixel on the thermographic Material can therefore be connected in parallel according to the number Point sources are reduced.
- thermographic material are a means of influencing of radiation energies emitted by the point sources.
- the point sources each have a laser, this is the mean for the sake of simplicity an optical one to influence the radiation energies Lens.
- the beam path of the emitted radiation energies can be correct the individual point sources so that the radiation energies of the point sources connected in particular in parallel in the assigned Pixel of the thermographic material can be concentrated.
- the Point sources each have a laser
- these lasers are on a semiconductor material arranged in two rows so that the lasers of one row spatially are offset from those of the other row. This creates at the Production of the laser is a sufficient distance between the lasers, the can be used to cut the semiconductor material between two lasers can. In this way, the manufacture of the writing medium can be carried out with a suitable one Number of lasers can be simplified considerably.
- thermographic material is pressed onto this drum.
- the Writing means is arranged so that the radiation emitted by the individual Point sources of the writing medium between the two pressure rollers hit the thermographic material.
- pressing the thermographic Material to the drum can advantageously be guaranteed that also while writing the thermographic material heating takes place. This will write on the thermographic Material greatly facilitated.
- the one to be applied by the lasers Performance can be kept low.
- the two Pressure rollers also for guiding and transporting the thermographic Materials are used.
- the first pressure roller can advantageously have at least one further pressure roller be upstream. This ensures that the thermographic Material before being written on by the laser for a longer period of time is preheated so that a sufficiently high preheating temperature in the thermographic material can also be generated when the heating temperature the drum is correspondingly low. Beyond that is also a Fast description of the thermographic material possible because the thermographic Material is heated up over a long drum surface path, so that a quick rotation of the drum is possible without having to do enough high preheating temperature would have to be dispensed with.
- the pressure rollers can in particular be designed so that they are low Have heat capacity or insulated against the absorption of heat are. This prevents heat energy from being stored in the pressure rollers takes place and this stored heat energy again to the thermographic Material is released so that there is an overlay of these in the heat energy stored by the pressure rollers and the heat generated by the Drum heat energy would come in, resulting in an unwanted Blackening of the thermographic material could result.
- the point sources of the writing means are digitally by means of Pulse width modulated signals controlled. This makes a particularly exact Description of the image points assigned to the point sources on the thermographic Material guaranteed.
- Fig. 1 shows the first embodiment of the writing device according to the invention 1 for writing on thermographic material 5.
- the writing device 1 has a laser line 10 which is used as writing means for writing the thermographic material 5 according to an information signal s (t) is used.
- This information signal s (t) is at an input interface 16 applied to a laser line controller 14 and contains information via an image recorded on the thermographic material 5 should.
- the information signal s (t) applied to the input interface 16 can for example from a receiving device for medical applications come.
- the laser line contains a variety of individually controllable lasers directed at the thermographic material 5 are.
- the laser line 10 is a line 15 of the thermographic material 5 writable by a blackening on the thermographic material 5 is produced.
- the laser line 10 is made of the thermographic material spaced.
- the laser beams can be focused between the individual ones Lasem the laser line 10 and the thermographic material 5 optics (not shown) are arranged.
- the individual lasers of the laser line 10 controlled by means of pulse width modulated signals. These pulse width modulated Signals are generated based on the information signal by the laser line control 14 generated. An electrical connection is used to connect the Laser line control 14 generated pulse width modulated signals to the individual Laser of laser line 10 created. These are modulated with the pulse width Signals are modulated and each send an intensity-modulated laser beam towards the thermographic material 5, which is a thermographic here Film is.
- the totality of the laser beams emitted by the laser line 10 is shown in FIG. 1 with reference number 11. 1 shows the laser beam 12 of the right outer laser and the laser beam 13 of the left outer laser of the laser line 10.
- the writing device 1 according to the invention according to FIG. 1 has a heating means in the form of a rotatably mounted, inductively heatable drum 20. Thereby can control the temperature of the drum 20 almost dead time and a relatively small drum 20 with low heat capacity can be used. It is however, it is also possible to use a drum that can be heated differently.
- the drum 20 is rotatable in a direction of rotation A and with a heating drum control 23 connected to the temperature to which the drum 20 is heated is adjustable.
- the drum 20 is directly below the laser line 10 arranged. Between the laser line 10 and the drum 20, the thermographic Film 5 are brought into contact with the drum 20.
- the writing device 1 has two pressure rollers 21 and 22 which are arranged between the laser line 10 and the drum 20, that the thermographic film 5 between the pressure rollers 21 and 22 on the one hand and the drum 20, on the other hand, can be pushed.
- the pressure roller 21 is in front of line 15 of thermographic film 5 and pressure roller 22 arranged behind this line 15.
- thermographic film 5 With the two pressure rollers 21 and 22 the thermographic film 5 is pressed against the drum 20, so that the thermographic Material before writing and during writing the thermal energy emitted by the drum 20 is heatable. The further transport of the thermographic film 5 takes place in a feed direction B.
- the speed of rotation of the drum 20 and the distance between the support the first pressure roller 21 on the heated drum 20 and the place of writing of the thermographic film 5 determine the time of preheating. Typical times when the thermographic film 5 detects the temperature of the Drum 20 reached are between 0.3 and 0.5 seconds.
- the temperature of the Drum 20 is advantageously 110 to 115 ° C; it must be below one Write temperature are that for writing on the thermographic material 5 is necessary and specific to the respective thermographic material. Due to the preheating of the thermographic film 5, no haze is allowed Films 5 occur. However, the higher the temperature for preheating the film 5 is chosen, the lower the required performance by the individual Lasem the laser line 10 for writing on the film 5 are applied got to. An exact regulation of the temperature of the drum 20 and an exact one Adjustment of this temperature to the specific, selected thermographic Film material is therefore advantageous.
- the pressure rollers 21 and 22 have in the present embodiment a very low heat capacity so that as little heat energy as possible these pressure rollers is stored. This can be avoided the pressure rollers in turn describe the thermographic film 5 with influence the thermal energy stored in them. Alternatively or in addition it is also possible, for example, to achieve this purpose Isolate pressure rollers 21 and 22 against the absorption of heat.
- the arrangement of the second pressure roller 22 can advantageously be so be made that the part of the thermographic already described Film 5 removed as quickly as possible from the peripheral surface of the drum 20 becomes. This can ensure that reheating of the described Part of film 5, which leads to a further, unwanted blackening of film 5 could be avoided. 1 is therefore the distance between the heating drum 20 and the first pressure roller 21 smaller than the distance between the heating drum 20 and the second pressure roller 22. However, an exact management of the thermographic must continue Film 5 must be guaranteed, in particular film 5 may be in the place of descriptive line 15 do not ripple.
- the width of a point of the thermographic Films 5 is set to 80 ⁇ m. This can result in a resolution of 300 dpi can be achieved.
- the center distance between two lasers of laser line 10 is therefore advantageously also set to 80 ⁇ m.
- For describing one line of thermographic film 5 is 4256 lasers in number the laser line 10 is provided. Each of these 4256 lasers is a pixel of the Line 15 of thermographic film 5 assigned.
- the information signal s (t) includes information depicted on the thermographic film 5 should be.
- the information signal s (t) prepared for the control of the laser line 10 so that for each laser Laser line 10, a signal for controlling the respective laser is generated. This means that in the present embodiment, 4256 signals are off the information signal s (t) are generated.
- the individual lasers of the laser line 10 are by means of the control signals generated by the laser line controller 14 directly modulated: in the present exemplary embodiment the control of the individual lasers in a digital manner, d. H. using pulse width modulated Control signals.
- thermographic image points assigned to the individual lasers Films 5 can be guaranteed.
- the duration of exposure of the individual Pixels assigned to lasers determine the degree of blackening of the respective ones Pixels. This allows different grayscale levels on the thermographic Film 5 are generated.
- the digital control of the laser provides one advantageous embodiment of the invention. Of course, the control also take place in an analogous manner.
- the processing of the information signal s (t) in the laser line controller 14 is not essential to the invention and can be adapted by a person skilled in the art to the respective circumstances.
- the lasers of the laser line 10 are in the present embodiment on the basis of the control signals which the laser line controller 14 can see are controlled at the same time. This makes it possible to change the pixels of the To describe line 15 of the thermographic material 5 simultaneously.
- the time, the laser line 10 for describing a line of the thermographic material 5 is advantageously about 3 ms. This allows the thermographic Film 5 can be fully described in a very short time.
- thermographic Films 5 For the successive description of the different lines of the thermographic Films 5, the heating drum 20 is rotated further in its direction of rotation A. This Rotation takes place continuously, so that a complex stepper motor for driving the heating drum 20 is not necessary. This causes the thermographic Film 5 corresponding to the rotation of the heating drum 20 in its feed direction B is moved on.
- the radiation energy of the laser beams of the individual lasers is on impact of the laser beam onto the thermographic film 5 from one provided therein Layer converted into thermal energy.
- the amount of this thermal energy depends on the intensity of the laser beam and the duration of the irradiation.
- the lasers in the present embodiment with pulse width modulated signals can be controlled, the intensity of the laser beam ideally only assume two states.
- the intensity of the laser beams is either zero or one of the predetermined maximum output power of the individual Laser dependent maximum value.
- the pixels assigned to the individual lasers Films 5 different degrees of blackening. Because of the digital control The different degrees of blackening depend on the individual laser Pixels of the film 5 on the duration of the irradiation of the individual pixels from.
- another radiation source can also be used become; from a variety of individually controllable sources of radiation is composed.
- the output power of the radiation sources are so high that blackening of the preheated thermographic material in different degrees of blackening can be generated.
- the large number of individually controllable sources of radiation from a large number is replaced by individually controllable heat sources. With these individually controllable heat sources could then be the thermal energy in addition to the thermal energy available through the preheating to describe the thermographic material must be applied. On the Layer for converting radiation energy into thermal energy in the thermographic Material 5 could then be dispensed with.
- the writing device 1 according to FIG. 1 is designed so that the laser line 10 has so many lasers that the pixels of an entire line of thermographic film 5 are simultaneously writable. Every pixel is a laser is assigned to the laser line 10.
- the laser line controller 14 converts the information signal s (t) into so many pulse width modulated signals around how lasers are present in laser line 10. But it is the same conceivable that the laser line controller 14 generates fewer drive signals than Lasers are present in the laser line 10. Then only part of the laser can can be controlled simultaneously by these control signals. The description for example the complete line 15 of film 5 would then have to be in two or several steps.
- the laser mile 10 it would also be possible to design the laser mile 10 in such a way that it has fewer lasers than pixels in one line of the Films 5 are available.
- the appropriate Writing device be designed so that a relative movement between the thermographic film 5 and the laser line 10 in the direction of propagation one of the lines of film 5 is possible.
- Fig. 2 shows a second embodiment of the device according to the invention with a representation of the beam path of the point sources in operation, which also represent lasers here.
- 2 shows a section of the laser line 10 with four lasers 30-33 arranged side by side. Lasers 30 to 33 are shown in operation and send a laser beam assigned to them 41-44 out.
- the laser beams 41-44 are in the present embodiment directed perpendicular to the thermographic film 5 to be described.
- a lens 40 is arranged between the lasers 30-33 and the film 5.
- This Lens 40 is a so-called commercially available SELFOC lens.
- the optical Lens 40 is used to influence the radiation energies of the beam paths 41-44 of lasers 30 to 33 are used. It should ensure; that the Laser beams of lasers 30-33 exactly in the pixels assigned to them thermographic film 5. Beam paths 41-44 of lasers 30-33 are therefore by the optical lens 40 in between this lens 40 and the Film 5 occurring beam paths 45-48 converted.
- the lens 40 needs focusing or defocusing the beam paths cause.
- Fig. 3 shows an extract from an arrangement of several point sources in this embodiment, lasers are on a semiconductor material.
- 3 shows a multiplicity of lasers on a semiconductor wafer 50, the part of a laser line for describing thermographic material are.
- the lasers are arranged in groups, each of which has three partial lasers. These three partial lasers of a group are connected in parallel and become the same Describe a pixel of the thermographic material used.
- 3 shows a group of partial lasers that consist of a first part laser 51, a second part laser 52 and a third part laser 53 exists.
- the control connections of the three partial lasers 51-53 are via one Bond wire 54 connected to the laser line controller 14.
- the pulse width modulated control signals to the control connections of the three partial lasers 51-53. Due to the parallel connection of the three partial lasers 51-53 each send the same intensity-modulated laser beam out. Due to the parallel arrangement of several partial lasers (in this Embodiment the three partial lasers 51-53) overlap in the assigned Pixel of the thermographic film 5 the radiation energies of these three Partial laser. In this way, the output power of the individual partial laser be kept small without generating a correspondingly high thermal energy to renounce the blackening of the film 5.
- the present exemplary embodiment according to FIG. 3 they are in groups arranged partial laser in two adjacent rows 55 and 56 arranged.
- the groups of first row 55 partial lasers are included spatially offset from the groups of partial lasers of the second row 56 arranged.
- the 3 shows such a semiconductor wafer cut 57.
- Such a staggered Arrangement of the groups of partial semen is advantageous because of the manufacture the laser lines have many groups of partial lasers simultaneously on a semiconductor wafer are produced, which are then sawn out, scratched and broken become. The saw or break edges when manufacturing the laser line must not be too close to the active structures due to the risk of damage the laser line.
- the generation of the pulse width modulated control signals in the laser line controller 14 this staggered arrangement of the groups of Operalasem take into account.
- the laser line controller 14 must therefore be designed accordingly.
- Fig. 4 shows a third embodiment of the device according to the invention with several pressure rollers for pressing the thermographic film 5 onto the Heating drum 20.
- the first pressure roller 21 is one third pressure roller 24 and a fourth pressure roller 25 connected upstream.
- multiple pressure rollers 21, 24 and 25 to preheat the film 5 the distance during which the thermographic film 5 with the surface of the Heating drum 20 is in contact, and thus the time during which the thermographic Film 5 is preheated by the heating drum 20, enlarged.
- the preheating of the thermographic material 5 can be different thermographic materials are adapted. Depending on the composition and the behavior of the different thermographic Materials, the duration of the preheating can be extended or shortened. Of the preheating of the thermographic material 5 to the Temperature below the writing temperature can be made more precisely.
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Electronic Switches (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Laser Beam Printer (AREA)
Description
- Fig. 1
- ein erstes Ausführungsbeispiel der erfindungsgemäßen Vorrichtung zum Beschreiben von thermografischem Material,
- Fig. 2
- ein zweites Ausführungsbeispiel der erfindungsgemäßen Vorrichtung mit Darstellung des Strahlengangs der in Betrieb befindlichen Punktquellen,
- Fig. 3
- eine Anordnung von mehreren Punktquellen auf einem Halbleitermaterial,
- Fig. 4
- ein drittes Ausführungsbeispiel der erfindungsgemäßen Vorrichtung mit mehreren Andrückrollen.
Claims (14)
- Vorrichtung (1) zum Beschreiben von thermografischem Material (5) miteinem Heizmittel (20) zum Vorheizen des thermografischen Materials (5) auf eine Temperatur unterhalb einer Schreibtemperatur, die für das Beschreiben des thermografischen Materials (5) notwendig ist, undeinem Schreibmittel (10) zum Beschreiben des thermografischen Materials (5) nach Vorgabe eines Informationssignals (s(t)), wobei das Schreibmittel (10) von dem thermografischen Material (5) beabstandet ist,
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Punktquellen (30-33; 51-53) so angeordnet sind, daß die Punkte einer Zeile des thermografischen Materials (5) beschreibbar sind.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Punktquellen (30-33; 51-53) so ansteuerbar sind, daß die von ihnen zu beschreibenden Punkte einer Zeile des thermografischen Materials gleichzeitig beschrieben werden.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Punktquellen (30-33; 51-53) so ausgestaltet sind, daß eine Strahlung zum Auftreffen auf eine Schicht des thermografischen Materials (5), die zur Wandlung dieser Strahlung in Wärme vorgesehen ist, aussendbar ist.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Punktquellen (30-33; 51-53) Laser aufweisen.
- Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß mehrere Punktquellen (51-53) parallel geschaltet sind, so daß mit ihnen zusammen ein einziger Punkt des thermografischen Materials (5) beschreibbar ist.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Laser (30-33; 51-53) auf einem Halbleitermaterial (50) in zwei Reihen (55, 56) angeordnet sind und die Laser (30-33; 51-53) der einen Reihe (55) räum-lich gegenüber denen der anderen Reihe (56) versetzt sind.
- Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß zwischen dem Schreibmittel (10) und dem thermografischen Material (5) ein Mittel (40) zur Beeinflussung von von den Punktquellen (30-33); 51-53) ausgesandter Strahlung angeordnet ist, um das punktweise Beschreiben des thermografischen Materials (5) zu unterstützen.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß das Mittel (40) zur Beeinflussung der Strahlung eine optische Linse ist.
- Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß das Heizmittel (20) eine drehbar gelagerte, beheizbare Trommel ist.
- Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß eine erste (21) und eine zweite (22) Andrückrolle zum Andrücken des thermografischen Materials (5) an die Trommel (20) vorhanden sind und das Schreibmittel (10) so angeordnet ist, daß das thermografische Material (5) zwischen den beiden Andrückrollen (21, 22) beschreibbar ist.
- Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß der ersten Andrückrolle (21) wenigstens eine weitere Andrückrolle (24, 25) vorgeschaltet ist.
- Vorrichtung nach Anspruch 11 oder 12, dadurch gekennzeichnet, daß die Andrückrollen (21, 22, 24, 25) eine geringe Wärmekapazität haben odergegen die Aufnahme von Wärme isoliert sind.
- Vorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß ein Steuermittel (14) zum Steuern der Punktquellen (30-33; 51-53) vorgesehen ist, um das Informationssignal (s(t)) in eine Vielzahl von pulsweitenmodulierten Signalen zu wandeln.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19747302 | 1997-10-25 | ||
DE19747302A DE19747302A1 (de) | 1997-10-25 | 1997-10-25 | Vorrichtung zum Beschreiben von thermografischem Material |
PCT/EP1998/006701 WO1999021719A2 (de) | 1997-10-25 | 1998-10-22 | Vorrichtung zum beschreiben von thermografischem material |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1024960A2 EP1024960A2 (de) | 2000-08-09 |
EP1024960B1 true EP1024960B1 (de) | 2001-12-19 |
Family
ID=7846692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98965136A Expired - Lifetime EP1024960B1 (de) | 1997-10-25 | 1998-10-22 | Vorrichtung zum beschreiben von thermografischem material |
Country Status (5)
Country | Link |
---|---|
US (1) | US6325474B1 (de) |
EP (1) | EP1024960B1 (de) |
JP (1) | JP2001520954A (de) |
DE (2) | DE19747302A1 (de) |
WO (1) | WO1999021719A2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7256803B2 (en) * | 2002-09-26 | 2007-08-14 | Futurelogic, Inc. | Direct thermal printer |
JP5651935B2 (ja) * | 2008-08-28 | 2015-01-14 | 株式会社リコー | 画像処理装置 |
WO2017135200A1 (ja) * | 2016-02-05 | 2017-08-10 | 株式会社リコー | 記録方法及び記録装置 |
CN108602358B (zh) * | 2016-02-05 | 2020-05-12 | 株式会社理光 | 记录方法和记录装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS58148777A (ja) * | 1982-02-27 | 1983-09-03 | Kanzaki Paper Mfg Co Ltd | レ−ザ−ダイオ−ドを用いた感熱プリンタ− |
DE3432824C2 (de) | 1984-09-06 | 1993-11-18 | Minnesota Mining & Mfg | Vorrichtung zur Erwärmung eines Heizelementes |
US4804975A (en) * | 1988-02-17 | 1989-02-14 | Eastman Kodak Company | Thermal dye transfer apparatus using semiconductor diode laser arrays |
DE3817625A1 (de) | 1988-05-25 | 1989-11-30 | Agfa Gevaert Ag | Verfahren und vorrichtung zur herstellung einer thermokopie |
JPH03178475A (ja) | 1989-09-28 | 1991-08-02 | Fuji Photo Film Co Ltd | 画像形成方法 |
GB8923708D0 (en) * | 1989-10-20 | 1989-12-06 | Minnesota Mining & Mfg | Production of grey scale images using pixellated exposure devices |
US5164742A (en) * | 1989-12-18 | 1992-11-17 | Eastman Kodak Company | Thermal printer |
US5168288A (en) * | 1989-12-18 | 1992-12-01 | Eastman Kodak Company | Thermal a scan laser printer |
US5196866A (en) | 1991-03-15 | 1993-03-23 | Eastman Kodak Company | Focus fiber mount |
US5258776A (en) * | 1991-08-23 | 1993-11-02 | Eastman Kodak Company | High resolution thermal printers including a print head with heat producing elements disposed at an acute angle |
US5552818A (en) * | 1992-10-14 | 1996-09-03 | Fuji Photo Film Co., Ltd. | Method and apparatus for controlling the moisture content of a thermosensitive recording medium in a thermal recording apparatus |
US5598272A (en) | 1994-04-07 | 1997-01-28 | Imation, Inc. | Visual calibrator for color halftone imaging |
EP0734870B1 (de) * | 1995-03-31 | 1999-06-23 | Fuji Photo Film Co., Ltd. | Verfahren und Vorrichtung für thermische Aufzeichnung |
EP0836116B1 (de) | 1996-09-06 | 2001-11-28 | Agfa-Gevaert N.V. | Empfindlichkeitssteigerndes Aufzeichnungsverfahren für ein lichtempfindliches, wärmeentwickelbares, photographisches Material |
-
1997
- 1997-10-25 DE DE19747302A patent/DE19747302A1/de not_active Withdrawn
-
1998
- 1998-10-22 WO PCT/EP1998/006701 patent/WO1999021719A2/de active IP Right Grant
- 1998-10-22 EP EP98965136A patent/EP1024960B1/de not_active Expired - Lifetime
- 1998-10-22 DE DE59802572T patent/DE59802572D1/de not_active Expired - Fee Related
- 1998-10-22 US US09/529,943 patent/US6325474B1/en not_active Expired - Fee Related
- 1998-10-22 JP JP2000517847A patent/JP2001520954A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE59802572D1 (de) | 2002-01-31 |
US6325474B1 (en) | 2001-12-04 |
WO1999021719A3 (de) | 1999-07-08 |
JP2001520954A (ja) | 2001-11-06 |
EP1024960A2 (de) | 2000-08-09 |
WO1999021719A2 (de) | 1999-05-06 |
DE19747302A1 (de) | 1999-05-06 |
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