CN101073953A - Information recording apparatus for thermosensitive medium - Google Patents
Information recording apparatus for thermosensitive medium Download PDFInfo
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- CN101073953A CN101073953A CN 200710104630 CN200710104630A CN101073953A CN 101073953 A CN101073953 A CN 101073953A CN 200710104630 CN200710104630 CN 200710104630 CN 200710104630 A CN200710104630 A CN 200710104630A CN 101073953 A CN101073953 A CN 101073953A
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- 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
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Abstract
本发明公开了一种用于在具有光热转换层和发色层的热敏介质(4)中记录信息的记录装置，其中的光热转换层具有光波长吸收特性，光热转换层所产生的热量使发色层发色，该记录装置包括第一光源(1)和第二光源(7)，其中第一光源(1)将用于写入信息的光束发射到热敏介质(4)中的主扫描方向上的扫描位置；第二光源(7)将能量密度低于第一光源(1)所发射的光束的光发射到热敏介质(4)中的主扫描方向上的扫描位置或其附近。第一光源(1)和第二光源(7)分别发射波长在光热转换层的吸收特性的范围内的光，以便以不与热敏介质(4)接触的方式在主扫描方向上形成一条线的各记录点。
The invention discloses a recording device for recording information in a heat-sensitive medium (4) having a light-to-heat conversion layer and a chromogenic layer, wherein the light-to-heat conversion layer has light wavelength absorption characteristics, and the light-to-heat conversion layer produces The heat of the chromophoric layer is colored, and the recording device includes a first light source (1) and a second light source (7), wherein the first light source (1) emits a light beam for writing information to a heat-sensitive medium (4) The scanning position on the main scanning direction in; The second light source (7) emits the light with energy density lower than the light beam emitted by the first light source (1) to the scanning position on the main scanning direction in the heat-sensitive medium (4) or its vicinity. The first light source (1) and the second light source (7) respectively emit light with a wavelength within the range of the absorption characteristics of the light-to-heat conversion layer, so as to form a line in the main scanning direction without contacting the heat-sensitive medium (4). Each record point of the line.
Description
Technical field
The present invention relates to a kind of being used for by the combination of point at the device of thermal media recorded information.
Background technology
Thermal media comprises the recording medium that can carry out the heat record and can carry out the rewritable media that heat writes down and heat is wiped.Traditionally, for recording medium, exist the known tape deck that uses thermo-sensitive material, such as leuco dye system and diazonium compound system.Traditionally, for rewritable media, exist the use known tape deck of the reversible thermal recording material of color development and colour killing under predetermined temperature repeatedly.These tape decks are by heating so that the thermal media color development comes recorded information thermal media with the heat head.For rewritable media, also to further change heating-up temperature so that medium colour killing and wipe record.The heat head contacts with thermal media.
In Japanese Patent Application Publication 5-147378 number, a kind of recording method that is used for making in the noncontact mode rewritable media color development and colour killing is disclosed.In the method, used a kind of information recording carrier, in this recording medium, INFRARED ABSORPTION heating layer and hot recording layer by sequential cascade on substrate.Tape deck makes the heating of INFRARED ABSORPTION heating layer by infrared laser is shone on the information recording carrier.When infrared absorption heating layer adstante febre, heat makes hot recording layer color development, thereby records the information in the information recording carrier.
Yet,, need high output laser in order to make the rewritable media color development in the noncontact mode with laser.Small-sized and relatively cheap semiconductor laser with output of big approximate number watt can't be handled this situation, unless adopt such as any way that reduces sweep speed.Therefore, the writing speed that is obtained in the time of can't realizing using strand of hot.Also have a kind of method, its use has the high output lasers such as the YAG laser instrument of tens of watts output.Yet, in this method, exist the problem that must use expensive and large-scale tape deck.
Summary of the invention
The purpose of this invention is to provide a kind of information record carrier that can use the light source that hangs down output relatively to realize the more economical and miniaturization of fully high writing speed.
According to an aspect of the present invention, a kind of tape deck that is used in the thermal media recorded information with photothermal transformation layer and chromonic layer is provided, photothermal transformation layer wherein has the optical wavelength absorption characteristic, and the heat that photothermal transformation layer produced makes the chromonic layer color development.This tape deck comprises first light source and secondary light source, wherein the scanning position of first light source beam emissions that will be used for the information that writes to the main scanning direction of thermal media; The light that secondary light source is lower than first light source institute emitted light beams with energy density is transmitted near the scanning position or this scanning position on the main scanning direction in the thermal media.First and second light sources are the light of emission wavelength in the absorption characteristic scope of photothermal transformation layer respectively, so that form each measuring point of a line on main scanning direction in the mode that does not contact with thermal media.
To set forth additional objects and advantages of this invention in the following description, and the part in these purposes and the advantage will be conspicuous according to following description, perhaps can recognize by putting into practice the present invention.Objects and advantages of the present invention can realize and obtain with means that hereinafter particularly point out and combination.
Description of drawings
Comprise in this manual and constitute the accompanying drawing of the part of this specification, show embodiments of the invention, and these accompanying drawings are used to principle of the present invention is described with the detailed description of general description that provides above and embodiment given below.
Fig. 1 is the perspective view that demonstrates according to the configuration of the major part of the tape deck of the first embodiment of the present invention;
Fig. 2 is the side view of the position relation between lasing fluorescence portion, LED illuminating part and the thermal media that demonstrates among first embodiment;
Fig. 3 is the block diagram that demonstrates the configuration of the control part among first embodiment;
Fig. 4 demonstrates in first embodiment, from the wavelength of the laser beam of lasing fluorescence portion, from the figure of the relation between the absorbing wavelength characteristic of the photothermal transformation layer of the wavelength of the LED light beam of LED illuminating part and thermal media;
Fig. 5 demonstrates laser beam among first embodiment and the LED light beam view to the position relation of the irradiation of thermal media;
Fig. 6 is the view that demonstrates the time sequential routine of lasing fluorescence portion among first embodiment and LED illuminating part;
Fig. 7 demonstrates in first embodiment, the figure of the characteristic that the temperature of the photothermal transformation layer that is caused by LED light beam and laser beam rises;
Fig. 8 demonstrates laser beam among first embodiment and the LED light beam view to the variation of the position relation of the irradiation of thermal media;
Fig. 9 is the view that demonstrates the time sequential routine of lasing fluorescence portion in the variation of first embodiment and LED illuminating part;
Figure 10 is the perspective view of configuration that demonstrates the major part of tape deck according to a second embodiment of the present invention;
Figure 11 demonstrates laser beam among second embodiment and the LED light beam view to the position relation of the irradiation of thermal media;
Figure 12 demonstrates laser beam among second embodiment and the LED light beam view to the variation of the position relation of the irradiation of thermal media;
Figure 13 demonstrates laser beam among second embodiment and the LED light beam view to another variation of the position relation of the irradiation of thermal media;
Figure 14 demonstrates in first or second embodiment, from the wavelength of the laser beam of lasing fluorescence portion, from the figure of the variation of the relation between the absorbing wavelength characteristic of the photothermal transformation layer of the wavelength of the LED light beam of LED illuminating part and thermal media;
Figure 15 demonstrates in first or second embodiment, from the laser beam of lasing fluorescence portion with from the figure of the variation of the relation between the absorbing wavelength characteristic of the photothermal transformation layer of the wavelength of the LED light beam of LED illuminating part and thermal media;
Figure 16 demonstrates in first or second embodiment, with the view of semiconductor laser as a profile instance of secondary light source; With
Figure 17 demonstrates in first or second embodiment, with the view of semiconductor laser as another profile instance of secondary light source.
The specific embodiment
Now, will be described embodiments of the invention with reference to the accompanying drawings.
(first embodiment)
At first, description is furnished with first embodiment of a pair of lasing fluorescence portion and LED illuminating part.
Fig. 1 is the perspective view that demonstrates according to the configuration of the major part of the tape deck of the first embodiment of the present invention.This tape deck is provided with the lasing fluorescence portion 1 as first light source.Laser beam from lasing fluorescence portion 1 shines on the polygon mirror 3 via collimater 2.Lasing fluorescence portion 1 by have the near infrared region of being in (750 to 1, the 000nm) emission wavelength lambda 1 in and be output as several watts commercially available semiconductor laser and constitute.
Laser beam from lasing fluorescence portion 1 is converted into the light beam that is used to the information that writes.By the rotation of polygon mirror 3, laser beam is on the main scanning direction perpendicular to throughput direction (sub scanning direction), and scanning is the thermal media 4 that is transferred of the direction of arrow in the figure just.Polygon mirror 3 is arranged to make its rotating shaft can be parallel with the sub scanning direction as the throughput direction of thermal media 4.In addition, if used refrative mirror or prism along the path, then owing to the influence of reflecting surface angle, the rotating shaft of polygon mirror 3 can be not parallel with sub scanning direction.
For from lasing fluorescence portion 1 emission arrive the laser beam of the reflecting surface of polygon mirrors 3 via collimater 2, the central optical axis of incident beam becomes perpendicular to the rotating shaft of polygon mirror 3.3 laser light reflected bundles of polygon mirror, being folded mirror 5 reflections at predetermined instant becomes the light beam that incides writing position sensor 6.
Tape deck is provided with the LED illuminating part 7 as secondary light source, and in this LED illuminating part 7, a plurality of light emitting diodes (LED) are arranged along main scanning direction.As shown in Figure 2, LED illuminating part 7 is arranged in the lower position of thermal media 4 tops, and feasible light from each LED can shine directly on the thermal media 4.With compare from the laser beam of lasing fluorescence portion 1, have lower energy density from the light of each LED of LED illuminating part 7.LED illuminating part 7 is the wire of diffusion and comes irradiates light from each LED along main scanning direction.From the light wavelength λ 2 of each LED with from the wavelength X 1 of the laser beam of lasing fluorescence portion 1 about equally.
In Fig. 2, indicated illumination beam from LED illuminating part 7 with solid arrow and dotted arrow.Solid arrow indication illumination beam overlaps the situation on the scan line of laser beam.Dotted arrow indication illumination beam is irradiated near the situation of scan line of laser beam.
Fig. 3 is the block diagram of configuration that demonstrates the control part of tape deck.Control part comprises CPU11, ROM 12, RAM 13 and input/output end port 14.CPU 11 is electrically connected to ROM 12, RAM 13 and input/output end port 14 by bus line 15.
Chromonic layer obtains color development or colour killing, depends on the heating temp of photothermal transformation layer.According to present embodiment, for example, under the state that by making the chromonic layer color development information is write in the thermal media 4, when the lasing fluorescence portion 1 that stops first light source and when improving output as the LED illuminating part 7 of secondary light source a little, thereby chromonic layer is by the colour killing erasure information.
For thermal media 4, the absorption characteristic of photothermal transformation layer is consistent with the wavelength X 1 from the laser beam of lasing fluorescence portion 1 at its peak place, and the efficient of the photo-thermal conversion that photothermal transformation layer carries out can be improved.In addition, because the peak of the absorption characteristic of photothermal transformation layer is positioned at outside the optical wavelength, so thermal media 4 is seldom to common illumination light sensible heat.Therefore, can prevent that thermal media 4 from deterioration taking place.
In such configuration, the rotation by polygon mirror 3 aligns the thermal media 4 that is transferred along main scanning direction and scans from the laser beam L1 of lasing fluorescence portion 1.As shown in Figure 5, by this scanning, the each point of a line has been recorded in the thermal media 4.At this moment, before laser beam L1 scans along main scanning direction, sequentially light each LED of LED illuminating part 7 just.Light operation by these, illuminated from the LED light beam L2 of LED illuminating part 7 so that overlap on the scan line of laser beam L1.
By adopting LED light beam L2 to shine, the sweep limits of laser beam L1 is heated.Laser beam L1 almost side by side scans this wire scope that is heated.Fig. 6 demonstrates the lasing fluorescence portion 1 of this moment and the time sequential routine of LED illuminating part 7.
At first, from writing position sensor 6 output writing position detection signals.Subsequently, sequentially luminous specific a period of time of each LED of LED illuminating part 7 is so that the scan line of preheating laser beam sequentially.From the laser beam of lasing fluorescence portion 1 based on the Bit data in the recorded information " 1 " or " 0 " and in print range, open or close light beam.This laser beam is opened or closed to scan when catching up with the part of each LED light beam institute preheating.When opening laser beam, laser beam L1 is irradiated on the photothermal transformation layer.
In this operation, as shown in Figure 7, the photothermal transformation layer of thermal media 4 is preheating to temperature T 2 by the LED light beam L2 from LED illuminating part 7 from room temperature TR.Photothermal transformation layer is by from the irradiation of the laser beam L1 of the L1 of lasing fluorescence portion and heated rapidly and reach the temperature that is higher than temperature T 1.Then, photothermal transformation layer is cooled off and is reached the temperature that is lower than temperature T 1 immediately rapidly.In the temperature range that is higher than temperature T 1, thermal media 4 color developments.By this color development, each point goes on record.The rapid cooling of carrying out after the heating is in order to prevent colour killing rapidly.If heat of cooling sensitive media 4 gradually, the chromonic layer that then is cooled can satisfy the colour killing condition, thus colour killing.
As mentioned above, after thermal media 4 is preheating to temperature T 2 by the LED light beam L2 from LED illuminating part 7, thereby thermal media 4 is by the laser beam L1 heating color development from lasing fluorescence portion 1.Therefore, lasing fluorescence portion 1 does not need to have high output, and can use the commercially available semiconductor laser of the output with big approximate number watt.In addition, can shorten the irradiation time of the required laser beam L1 of record each point fully.
Therefore, can provide more economical and tape deck miniaturization.In addition, can guarantee and heat the strand of hot identical print speed that a line prints simultaneously so that realize fully high writing speed.In addition, different with strand of hot, not by contacting recorded information with thermal media 4, this rewritable media that writes down and wipe repeatedly for thermal media 4 repeatedly is very favorable.
In first embodiment, the operation of the record of thermal media 4 is not limited to foregoing.For example, as shown in Figure 8, from the LED light beam L2 of LED illuminating part 7 can the preheating scan line near, laser beam L1 can be shone subsequently on the scan line with rapidly to its heating.Fig. 9 shows the lasing fluorescence portion 1 of this moment and the time sequential routine of LED illuminating part 7.
At first, all LED of LED illuminating part 7 are luminous, so as the scan line of preheating laser beam near.Then, from writing position sensor 6 output writing position detection signals.Subsequently, the laser beam L1 from lasing fluorescence portion 1 scans scan line.Then, based on the Bit data in the recorded information " 1 " or " 0 ", in print range, open or close laser beam.When opening laser beam, each point obtains record.
As mentioned above, by control lasing fluorescence portion 1 and LED illuminating part 7, also can obtain similar effect and advantage.
(second embodiment)
Now, description is furnished with many second embodiment to lasing fluorescence portion and LED illuminating part.
Figure 10 is the perspective view of configuration that demonstrates the major part of the tape deck in the second embodiment of the present invention.In this tape deck, as first light source, throughput direction along thermal media 4 is furnished with five lasing fluorescence portions 31,32,33,34 and 35 with preset space length P0, and each in the lasing fluorescence portion 31,32,33,34 and 35 all has semiconductor laser and collimater.Semiconductor laser be have the near infrared region of being in (750 to 1, the 000nm) emission wavelength in and be output as several watts commercially available semiconductor laser.Laser beam from each lasing fluorescence portion 31 to 35 is irradiated on the polygon mirror 36.
The arrangement pitch P0 of each lasing fluorescence portion 31 to 35 is the printing pitch P1 on the throughput direction (that is sub scanning direction) of thermal media 4.In addition, can change printing pitch by the angle of using fibre bundle or the reflecting surface by changing polygon mirror.
Each lasing fluorescence portion 31 to 35 has golf calorific value.Therefore, each lasing fluorescence portion 31 to 35 is fixed to fin so that the heat that radiation produced.
From the identical reflecting surface reflection of the laser beam of each lasing fluorescence portion 31 to 35 by polygon mirror 36.For the laser beam on the reflecting surface that is transmitted into polygon mirror 36 from each lasing fluorescence portion 31 to 35, it is vertical with the rotating shaft of polygon mirror 36 that the central optical axis of incident beam becomes.
In tape deck, as secondary light source, be provided with five LED illuminating parts 37,38,39,310 and 311, in each in these five LED illuminating parts, be furnished with a plurality of light emitting diodes (LED).Each LED illuminating part 37,38,39,310 and 311 is arranged with preset space length along the throughput direction of thermal media 4, and is corresponding with each lasing fluorescence portion 31 to 35.
Each LED illuminating part 37 to 311 is arranged in the lower position of thermal media 4 tops, and feasible light from each LED can shine directly on the thermal media 4.Irradiates light from each LED illuminating part 37 to 311 is illuminated, makes that irradiates light can be with overlapping on scan line from the laser beam of each lasing fluorescence portion 31 to 35.Alternately, each LED illuminating part 37 to 311 shone irradiates light near the scan line of laser beam before the scan line of laser beam.
In Figure 11, demonstrated when the irradiates light from LED illuminating part 37 to 311 is irradiated near the scan line of laser beam the position of the irradiation of laser beam and LED light beam relation.As shown in figure 11, from illumination beam L21, L22, L23, L24 and the L25 of each LED illuminating part 37 to 311 by Continuous irradiation near nearside from the scan line of laser beam L11, L12, L13, L14 and the L15 of each lasing fluorescence portion 31 to 35.Zone on the scan line is by illumination beam L21, L22, L23, L24 and L25 preheating.Subsequently, when laser beam L11, L12, L13, L14 and L15 scanned the zone on the scan line, chromonic layer is color development by rapid heating, thus the record each point.
In Figure 12, demonstrated when the irradiates light from LED illuminating part 37 to 311 is almost shone on the scan line of laser beam simultaneously the position of the irradiation of laser beam and LED light beam relation.As shown in figure 12, when laser beam L11, L12, L13, L14 and L15 from each lasing fluorescence portion 31 to 35 scan the zone on the scan line, almost side by side shone from illumination beam L21, L22, L23, L24 and the L25 of each LED illuminating part 37 to 311.That is, by the preheating of illumination beam L21, L22, L23, L24 and L25 and the scanning of passing through laser beam L11, L12, L13, L14 and L15, each point is recorded.
In tape deck, the arrangement pitch P0 of each lasing fluorescence portion 31 to 35 is the printing pitch P1 on the sub scanning direction of thermal media 4.Like this, can in thermal media 4, write down each point simultaneously along the main scanning direction of thermal media 4 by five lines.When finishing the scanning of a line, thermal media 4 is transferred five times the distance of printing pitch P1.In addition, after carrying, a line is scanned once more in each lasing fluorescence portion 31 to 35, thus the record each point.By this being carried out repetition, can on thermal media 4, carry out flying print.
In the tape deck of present embodiment, the arrangement pitch between each lasing fluorescence portion 31 to 35 can be arranged to printing pitch P1 four times.In this case, as shown in figure 13, when finishing the scanning of a line, the distance that thermal media 4 is transferred is printing pitch P1.In addition, after carrying, a line is scanned once more in each lasing fluorescence portion 31 to 35, thus the record each point.Tape deck repeats this operation on four lines.If thermal media 4 is very short and sub scanning direction on print range be 20 times of printing pitch P1, then operate the printing of finishing on the thermal media 4 by on four lines, repeating this.
On the other hand, if thermal media 4 is longer than 20 times of printing pitch P1, then thermal media 4 is transferred the twentyfold distance of printing pitch P1, is the each point of four lines of four times of printing pitch P1 to write down spacings by each lasing fluorescence portion 31 to 35.By this way, can on five lines, carry out simultaneously and print, thereby realize flying print.
As mentioned above, in a second embodiment, tape deck also can be realized fully high writing speed.In addition, thermal media 4 is by the preheating of LED light beam, and by the rapid heating and cooling of laser beam, thereby also can guarantee reliable record even have in lasing fluorescence portion 1 under the situation of low relatively output.Therefore, can provide more economical and tape deck miniaturization.
In a second embodiment, arranged five lasing fluorescence portions and five LED illuminating parts, yet the number of lasing fluorescence portion and LED illuminating part is not limited to above-mentioned number.
In first and second embodiment, be configured to roughly be equal to each other from the wavelength X 1 of the laser beam of lasing fluorescence portion with from the light wavelength λ 2 of LED illuminating part, yet wavelength X 1 and wavelength X 2 can be differing from each other.For example, as shown in figure 14, when wavelength X 1 and wavelength X 2 are differing from each other, use photothermal transformation layer to have the rewritable media of two absworption peaks, make that the peak of absorption characteristic can be consistent with each wavelength X 1 and λ 2.As photothermal transformation layer in this case, use has the rewritable media of a photothermal transformation layer, this photothermal transformation layer has two absworption peaks, perhaps uses the rewritable media with two photothermal transformation layers, and these two photothermal transformation layers have the absworption peak that differs from one another respectively.Thus, can obtain similar effect and advantage.
In addition, be not peak and the wavelength X 1 and the λ 2 corresponding to rewritable medias that must use the absorption characteristic of its photothermal transformation layer.Shown in the curve G1 and curve G2 of Figure 15, the absorption characteristic of photothermal transformation layer shows and depends on raw-material unique curve.For example, the indicated absorption characteristic of curve G1 has the peak value that is positioned at R1, and the indicated absorption characteristic of curve G2 has the peak value that is positioned at R2.By tentatively making wavelength X 1 and λ 2 consistent with the peak R1 and the R2 of these absorption characteristics, photo-thermal has been converted to the execution of full blast.
Yet, as shown in figure 15, if wavelength X 1 and λ 2 are present in the scope of the indicated absorption characteristic of the indicated absorption characteristic of curve G1 and curve G2, even then efficient is according to absorption characteristic and difference, photothermal transformation layer still can absorb light, thereby carries out the photo-thermal conversion.Therefore, when use has absorption characteristic for the rewritable media of the photothermal transformation layer of these curves G1 and G2, can obtain similar effect and advantage.
In first and second embodiment, use can color development and the rewritable media of colour killing as thermal media, yet, only also can use can color development thermal media.
In first and second embodiment, semiconductor laser is used as first light source, yet first light source is not limited thereto.Similarly, LED is used as secondary light source, yet secondary light source is not limited thereto.For example, can use semiconductor laser as secondary light source.
Figure 16 demonstrates the profile instance of semiconductor laser as secondary light source 7.This secondary light source 7 comprises that a plurality of semiconductor laser 41 is to 4n.These semiconductor lasers 41 to 4n belong to high output multimode type.These semiconductor lasers 41 to 4n have lasing fluorescence zone 61 to 6n respectively on the p-n composition surface 51 to 5n of stepped construction.In addition, in Figure 16, being formed on the top that lasing fluorescence zone 61 to 6n on the p-n composition surface 51 to 5n is presented at semiconductor laser 41 to 4n respectively.
The lasing fluorescence zone of the semiconductor laser of single mode type is longer than in the lasing fluorescence zone 61 to 6n of semiconductor laser 41 to 4n respectively on the direction on p-n composition surface 51 to 5n.For example, to 4n, the length of lasing fluorescence zone 61 to 6n on the direction on p-n composition surface 51 to 5n is for example 50 to 200 μ m at the semiconductor laser 41 of multimode type.That is, respectively than lasing fluorescence zone 61 to the 6n long for example 3 μ m of the semiconductor layer of single mode type.Thus, the semiconductor laser beam of exporting from the semiconductor laser 41 to 4n of multimode type 71 to 7n shows following characteristic: when, being difficult to narrow down when converting image on the direction identical with the direction on p-n composition surface 51 to 5n by optical axis object type lens (object type lens).
A plurality of collimation lenses (imaging len) 81 to 8n are set on the light path of the semiconductor laser beam 71 to 7n of semiconductor laser 41 to 4n outputs.Collimation lens 81 to 8n shows following characteristic: semiconductor laser beam 71 to 7n is narrowed down on the direction vertical with the direction f on p-n composition surface 51 to 5n, and make semiconductor laser beam 71 to 7n be difficult to narrow down on the direction identical with the direction f on p-n composition surface 51 to 5n.Semiconductor 41 to 4n is configured to make the direction f on p-n composition surface 51 to 5n can be consistent each other.In addition, in fact semiconductor laser 41 to 4n is used separately as chip of laser.
Be set at respectively by collimation lens 81 to 8n as a plurality of cylindrical lenses (anamorphote) 91 to 9n of the balanced optical system of intensity and convert on the light path of semiconductor laser beam 71 to 7n of image.These cylindrical lenses 91 to 9n are separately positioned on the light path of the semiconductor laser beam 71 to 7n of semiconductor laser 41 to 4n outputs.These cylindrical lenses 91 to 9n reflect output along the arranged direction of semiconductor laser 41 to 4n respectively.Yet, these cylindrical lenses 91 to 9n respectively the part of the semiconductor laser beam 71 to 7n of the image on the recording surface that is converted to thermal media 4 by collimation lens 81 to 8n (promptly, the end of semiconductor laser beam 71 to 7n on the direction identical) overlap each other with the direction f on p-n composition surface 51 to 5n, thereby semiconductor laser beam 71 to 7n is defocused on the direction f on p-n composition surface 51 to 5n, so that the intensity distributions of semiconductor laser beam 71 to 7n on the recording surface of thermal media 4, (in other words, on the arranged direction of semiconductor laser 41 to 4n) equalization on the direction f on the p-n composition surface 51 to 5n in semiconductor laser 41 to 4n.
Figure 17 demonstrates semiconductor laser another profile instance as secondary light source 7.In this secondary light source 7, be provided with distortion cylindrical lens (rod lens) 100 from the light path of advancing of the semiconductor laser beam 71 to 7n of semiconductor laser 41 to 4n output.This rod lens 100 overlaps each other the part of the semiconductor laser beam of exporting from semiconductor laser 41 to 4n 71 to 7n on the recording surface of thermal media 4, so that the intensity distributions of semiconductor laser beam 71 to 7n on the recording surface of thermal media 4, equalization on the arranged direction of semiconductor laser 41 to 4n.
Those skilled in the art will be easy to expect additional advantage and modification.Therefore, the present invention is not limited to detail and representative embodiment shown and that describe herein in aspect it is wideer.Therefore, can under the situation of the spirit or scope of the general inventive concept that does not break away from claims and equivalent thereof and limited, make various modifications.
Claims (8)
1. information record carrier that is used in the thermal media with photothermal transformation layer and chromonic layer (4) recorded information, described photothermal transformation layer has the optical wavelength absorption characteristic, the heat that described photothermal transformation layer produced makes described chromonic layer color development, it is characterized in that described information record carrier comprises:
First light source (1), its beam emissions that will be used for the information that the writes scanning position to the main scanning direction of described thermal media; And
Secondary light source (7), its light that energy density is lower than described first light source (1) institute emitted light beams are transmitted near described scanning position on the described main scanning direction in the described thermal media or its, wherein
Described first and second light sources (1) and (7) are the light of emission wavelength in the scope of the described absorption characteristic of described photothermal transformation layer respectively.
2. information record carrier as claimed in claim 1 is characterized in that described information record carrier further comprises:
Scanning optics (3), it is used from described first light source (1) emitted light beams and scans described thermal media (4) along described main scanning direction.
3. information record carrier as claimed in claim 1 is characterized in that described information record carrier further comprises:
Control part (11,17,20), described first light source (1) is controlled in its write operation according to the information in the described thermal media (4) and described secondary light source (7) is luminous.
4. as at least one described information record carrier in the claim 1 to 3, it is characterized in that
Described first light source (1) and described secondary light source (7) are launched the light of the corresponding wavelength of peak of the described absorption characteristic that is represented with described photothermal transformation layer respectively.
5. as at least one described information record carrier in the claim 1 to 3, it is characterized in that
Described thermal media (4) has photothermal transformation layer, and in described photothermal transformation layer, two different wavelength have peak value respectively in described absorption characteristic,
Described first light source (1) emission have with described absorption characteristic in the light of a corresponding wavelength of peak, and
Described secondary light source (7) emission have with described absorption characteristic in the light of the corresponding wavelength of another peak.
6. information record carrier as claimed in claim 1 or 2 is characterized in that
Described secondary light source (7) makes light spread in the wire mode along the described main scanning direction of described thermal media (4) to shine.
7. information record carrier as claimed in claim 2 is characterized in that
Use a plurality of described first light sources (31,32,33,34 and 35) and a plurality of described secondary light source (37,38,39,310 and 311) respectively, and form a plurality of rightly, wherein each is to being made up of one of described first light source and one of described secondary light source, and
It is described a plurality of to being arranged to respectively that described first light source (31,32,33,34 and 35) and described secondary light source (37,38,39,310 and 311) are formed, and the distance that makes described scanning position on the described main scanning direction of described thermal media (4) to depart from each other on the direction vertical with described main scanning direction is the integral multiple of dot spacing.
8. information record carrier as claimed in claim 7 is characterized in that
Described a plurality of secondary light source (37,38,39,310 and 311) emitted energy density is than described a plurality of first light sources (31,32,33,34 and 35) light that institute's emitted light beams is low, and
It is described a plurality of right that described first light source (31,32,33,34 and 35) and described secondary light source (37,38,39,310 and 311) are formed, by light from described secondary light source (37,38,39,310 and 311), the energy that can not realize the level that writes is supplied near described scanning position on the described main scanning direction in the described thermal media (4) or its, and from the light beam of described first light source (31,32,33,34 and 35) the described scanning position on the described main scanning direction in the described thermal media (4) is scanned to write information.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006140367 | 2006-05-19 | ||
| JP2006140367 | 2006-05-19 | ||
| JP2007062848 | 2007-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101073953A true CN101073953A (en) | 2007-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710104630 Pending CN101073953A (en) | 2006-05-19 | 2007-05-18 | Information recording apparatus for thermosensitive medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101073953A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107984908A (en) * | 2017-12-04 | 2018-05-04 | 鸿博股份有限公司 | A kind of thermal printer |
| CN108602354A (en) * | 2016-02-05 | 2018-09-28 | 株式会社理光 | Image recorder and image recording process |
| CN108602356A (en) * | 2016-02-05 | 2018-09-28 | 株式会社理光 | Image recorder and image recording process |
| US10792932B2 (en) | 2016-02-05 | 2020-10-06 | Ricoh Company, Ltd. | Image recording apparatus and image recording method |
-
2007
- 2007-05-18 CN CN 200710104630 patent/CN101073953A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108602354A (en) * | 2016-02-05 | 2018-09-28 | 株式会社理光 | Image recorder and image recording process |
| CN108602356A (en) * | 2016-02-05 | 2018-09-28 | 株式会社理光 | Image recorder and image recording process |
| US10792932B2 (en) | 2016-02-05 | 2020-10-06 | Ricoh Company, Ltd. | Image recording apparatus and image recording method |
| US10960682B2 (en) | 2016-02-05 | 2021-03-30 | Ricoh Company, Ltd. | Image recording apparatus and image recording method |
| CN107984908A (en) * | 2017-12-04 | 2018-05-04 | 鸿博股份有限公司 | A kind of thermal printer |
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