CN104066589B - The method forming color laser image and the certificate so manufactured - Google Patents
The method forming color laser image and the certificate so manufactured Download PDFInfo
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- CN104066589B CN104066589B CN201280067978.9A CN201280067978A CN104066589B CN 104066589 B CN104066589 B CN 104066589B CN 201280067978 A CN201280067978 A CN 201280067978A CN 104066589 B CN104066589 B CN 104066589B
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Abstract
The present invention relates to a kind of method for forming color laser image.By laser beam (8), the sub-image being made up of color sub-pixel (2) and achromatic region is carried out personalization, described laser beam acts on the laser-sensitive layer (3) being positioned at below color sub-pixel (2) and achromatic region so that final personalized colorful laser image occur.The present invention is applicable to identity document.
Description
Technical field
The method that the present invention relates to form color laser image.It is particularly suited for the identity image of identity document: identity
Card, the credit card, health insurance cards, passport, driver's license, safety enter badge etc..
Background technology
Patent WO 2011/124774 A1 describes a kind of embedded submersible picture (latent being used in identity document
Image) personalized method, described identity document includes embedding the sub-image being made up of picture element matrix in protective clear layer, as
Element is made up of color sub-pixel.By means of the laser beam through protective clear layer effect, by utilizing black non-reflective background to cover
Lid pixel to generate gray scale on sub-pixel, thus generates the gray scale of final color laser image.This processing method is used for
Make the sub-image being made up of color sub-pixel personalized.
Image personalized by this way is observed by reflection through protective clear layer.Personalized image must have
There are enough reflexive, enable it to be observed in ambient light, and without additional source of light.
Patent application No.11/00578 describes a kind of method forming high reflector laser image, and described height is anti-
Penetrating property laser image includes sub-image, and this sub-image is made up of the color sub-pixel surrounded by water white transparency region and is coated over swashing
In the protective clear layer (hereinafter referred to as " laser-sensitive (laserable) " layer) that light radiation is sensitive.Laser beam causes swashing at this
Occurring non-reflective black surface in photaesthesia protective layer, described surface covers the surface of color sub-pixel and colourless to a certain extent
Surface is with by gray scale individuating image.By the reflection in following reflexive sublayer (especially white sublayer) or thoroughly
Cross varnish and see personalized image, in order to increase the reflectance of image.Image reflectance is most important, because it must make eye
Eyeball can make a response the light beam with the color by having sub-pixel by additive composition and the light beam from achromatic region (passes through
The back reflection of incident illumination is launched) integrated.
Although being favourable in some respects, but the quality of personalized image having been limited by those structures.Formed individual
The non-reflective black surface of the gray scale of property image is not located on sub-pixel being just in above the sub-pixel of sub-image, they shapes
Become the hatching effect making final personalized image dimmed.
Summary of the invention
It is an object of the invention to the shortcoming making prior art up by the quality improving final personalized image.For
This, the present invention proposes to be formed below at the sub-image being made up of color sub-pixel to constitute gray scale non-reflective of final personalized image
Surface.
More accurately, the invention provides one from including protective clear layer, being made up of color sub-pixel and colourless surface
The sub-image of printing, laser-sensitive layer, the assembly of reflection unit and laser beam below sub-image form personalized colorful laser figure
The method of picture, described laser beam passes protective layer, through sub-pixel and the colourless surface of sub-image, and is formed in laser-sensitive layer
The gray scale of final personalized image, described assembly is laminated on medium.
Calculating by means of software and cause sub-image personalized to form the gray scale of final image, described software collection is original
Image, is divided into sub-pixel, calculates corresponding color and luster (color shade), and determines in the color sub-pixel of sub-image and nothing
Will the gray scale of carbonization in laser-sensitive layer below territory, zone, in order to obtain the color and luster identical with original image.
Proportionally carried out by the energy utilizing linearisation software well known by persons skilled in the art and laser to be deposited
A certain degree of melanism, and also by changing the region of carbonization, obtain the gray scale of personalized image.
It addition, the color of the sub-pixel passed according to laser beam and achromatic region regulate the energy of laser beam, because
Need to regulate required laser energy according to the color of sub-pixel and the transparency of achromatic region.
As non-limiting example, form the swashing of gray scale of personalized image by being carbonized under the influence of laser beam
Light sensitive material can by Merlon, the most treated polrvinyl chloride, treated acrylonitrile-butadiene-styrene (ABS) or
Treated polyethylene terephthalate is constituted.
In the specific implementation of the present invention:
The medium of identity document is white, and carries out surface coating with sensitive to laser emission, in order to formed individual
Property image gray scale, the sub-image being made up of color sub-pixel and achromatic region is printed on a surface；
The color sub-pixel of sub-image is printed on the surface in the laser-sensitive layer to be laminated on of protective layer；
Laser-sensitive layer is transparent.Laser-sensitive layer is in turn laminated on reflecting surface, and this reflecting surface can be advantageously
It is made up of the main body of the certificate of white colour；
The main body of certificate is transparent；And
During being laminated, protective layer is hot pressed to form lens arra.
The thickness of the thickness of laser-sensitive layer or the coated portion of certificate medium should be the thinnest, simultaneously with required
Gray scale is compatible.This thickness can be advantageously in the range of several microns to the most hundreds of micron.
Printing color picture is carried out by offset printing, ink jet printing or other technology any well known by persons skilled in the art
Element.Achromatic region or without sub-pixels for increasing the reflectance of final image.Color sub-pixel and achromatic region are arranged at
In parallel columns or in equally distributed zonule.Sub-image can be by tlv triple (triplet) or four-tuple (quadruplet)
Color sub-pixel is constituted.The color of sub-pixel is preferably chosen from independent color, i.e. cannot shape by any two mixing in them
Become the 3rd sub-pixel colors.These colors include redness, green and blue or yellow, magenta and cyan.
In the second procedure of processing being referred to as " lamination ", protective layer and laser sensitive material layer pass under pressure through accumulation of heat
Close in the main body of identity document, thus between protective layer and laser sensitive material layer, embed color sub-pixel and achromatic region
Matrix.
In another modification of the present invention, during being laminated, it is (the most saturating that protective layer can be molded to give its given shape
Lens array) so that the laser beam of specific angle of incidence facet etch under sub-image, so that multiple different color laser images are entered
Row personalization.
The integrating laser carbonization causing gray scale to occur blocks incident illumination and the color sub-pixel through sub-image to a certain extent
With the reflection light of achromatic region, thus limit the noisy reflection and hatching effect that final personalized image may be made fuzzy.
Present invention also offers the certificate of a kind of personalized laser image including and being formed by performing said method.
This certificate includes transparency protected, be made up of the array of color sub-pixel and the array of achromatic region sub-image, position
Laser sensitive material layer below sub-image and certificate medium, the described carbonization at least in part by laser emission.Protect
Bluff piece, sub-image, laser-sensitive layer and described medium are suitable for being laminated.
In a specific embodiment:
Laser-sensitive layer obtains by the white main body of certificate carries out surface coating, by color sub-pixel and colourless
On the coating surface of the main body that the sub-image that region is constituted is printed on certificate；
The sub-pixel of sub-image is printed on the surface in the laser-sensitive layer to be laminated on of protective layer；
Laser-sensitive layer is transparent.Laser-sensitive layer is laminated on reflecting surface, and this reflecting surface can be advantageously
It is made up of the white main body of certificate；
The main body of certificate is transparent；And
During being laminated, protective layer is hot pressed to give the form of its lens arra, so that laser can be at sub-image
The multiple different personalized colorful laser image of upper etching.
Accompanying drawing explanation
From the following description be given as non-limitative illustration, the present invention can become apparent from.This description referring to the drawings, accompanying drawing
In:
Fig. 1 is the sectional view of the identity document of the prior art including color laser image；
Fig. 2 is the sectional view of first embodiment of the present invention；
Fig. 3 is the sectional view of second embodiment of the present invention；And
Fig. 4 is the sectional view of third embodiment of the present invention.
Detailed description of the invention
Fig. 1 is the sectional view of the identity document of the prior art including color laser image.Protective clear layer (4), laser
The matrix of sensitive layer (3) and sub-pixel is laminated in the main body of identity document (1).Given birth to by utilizing laser beam to carry out carbonization
The black surface (5) become and color sub-pixel (2) vertical registration of sub-image.If incident ambient light (6) hangs down the most exactly
Straight in certificate plane, then it is incident upon the shade in color sub-pixel (2) by black surface (5) the most excessive from the region of sub-pixel
Go out, thus create the shadow region (7) making personalized image dimmed.
Fig. 2 is the sectional view of first embodiment of the present invention.The main body (1) of identity document is white.On this surface
Upper coating is to create laser-sensitive layer (3).Color sub-pixel (2) and the sub-image of achromatic region is included in the upper printing of this layer (3).Separately
Selection of land, sub-image can be printed on protective clear layer (4).Protective layer (4) is in turn laminated on assembly.Laser beam (8) is quick at laser
Sense layer (3) is formed the gray scale (5) of final personalized image.Shadow region does not the most occur.
Fig. 3 is the cross section of second embodiment of the present invention.The layer (3) of laser sensitive material is laminated on card main body (1)
On.Color sub-pixel (2) is printed in this laser-sensitive layer (3) together with achromatic region, and assembly constitutes sub-image.Alternatively,
Color sub-pixel (2) can be printed on the protection layer.Then, protective layer (4) is laminated on assembly.
Fig. 4 is the cross section of third embodiment of the present invention.Come in card main body by card main body (1) being carried out surface coating
(1) laser-sensitive layer (3) is obtained on.In modification, this laser-sensitive layer (3) is laminated in card main body (1).Including colored son
The sub-image (2) of pixel and achromatic region is printed in laser-sensitive layer (3).Alternatively, sub-image can be printed on protective layer (4)
On.Protective layer (4) be laminated on before assembly on.During being laminated, time in terms of observer side, its end face is hot pressed, with shape
Become lens arra (9).Due to laser beam (8) with (8') have the specific angle of incidence relative to certificate plane, thus they
Laser-sensitive layer causes carbonization in (3), two different personalized image are formed below in the color sub-pixel of sub-image (2)
And (5') (5).It is respectively seen the two color laser image by the back reflection of incident illumination.In alternate forms, three can be formed
Personalized laser image.
Claims (9)
1. using the method that laser beam forms personalized colorful laser image on assembly, described assembly includes transparency protected
Laser-sensitive layer below layer, the sub-image of printing being made up of color sub-pixel and colourless surface, described sub-image and reflection unit,
Described laser beam passes described protective layer, through described sub-pixel and the described colourless surface of described sub-image, and swashs described
Forming the gray scale of final personalized image in light-sensitive layer, described assembly is laminated in card main body (1).
The method of formation personalized colorful laser image the most according to claim 1, wherein, described laser-sensitive layer (3)
Obtain by described card main body (1) is carried out surface coating.
The method of formation personalized colorful laser image the most according to claim 1, wherein, described laser-sensitive layer (3)
It is laminated on described card main body (1).
4. according to described in any one in claims 1 to 3 formed personalized colorful laser image method, wherein, including
The described sub-image of described sub-pixel (2) and described achromatic region is printed on the surface of described laser-sensitive layer (3).
5. according to the method forming personalized colorful laser image described in any one in claims 1 to 3, wherein, described
The end face of protective layer (4) is hot pressed to be formed lens arra (9), and this lens arra (9) makes it possible to etch multiple different
Property color laser image.
6. include that a certificate for personalized colorful laser image, described personalized colorful laser image are by performing according to appointing
What method described in aforementioned claim and formed, described certificate is characterised by that it includes transparency protected, by colored son
Sub-image that the array of the array of pixel and achromatic region is constituted, be positioned at laser sensitive material below described sub-image layer and
Certificate main body (1), the layer of described laser sensitive material is carbonization at least in part by laser emission, described screening glass, described
Sub-image, described laser-sensitive layer and described certificate main body (1) are suitable for being laminated.
Certificate the most according to claim 6, wherein, forms lens arra (9) on the surface of described screening glass.
Certificate the most according to claim 6, wherein, described certificate main body (1) is white.
Certificate the most according to claim 6, wherein, described certificate main body (1) is transparent.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1103919A FR2984217B1 (en) | 2011-12-19 | 2011-12-19 | METHOD FOR FORMING COLOR LASER IMAGES AND DOCUMENT THUS PRODUCED |
| FR11/03919 | 2011-12-19 | ||
| PCT/FR2012/000501 WO2013093230A1 (en) | 2011-12-19 | 2012-12-05 | Method for forming color laser images, and resulting document |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104066589A CN104066589A (en) | 2014-09-24 |
| CN104066589B true CN104066589B (en) | 2016-11-30 |
Family
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5350198A (en) * | 1991-10-18 | 1994-09-27 | Gao Gesellschaft Fur Automation Und Organisation Mbh | Recording medium with colored picture information, in particular a check card or identity card |
| US5364829A (en) * | 1991-08-30 | 1994-11-15 | Matsushita Electric Industrial Co., Ltd. | Rewritable recording medium and a method of recording in the same |
| US6633321B1 (en) * | 1999-03-16 | 2003-10-14 | Maurer Electronics Gmbh | Method for recording image information |
| CN101546138A (en) * | 2008-03-28 | 2009-09-30 | 夏普株式会社 | Electrophotographic photoreceptor and image formation device provided with the same |
| CN102015188A (en) * | 2008-05-07 | 2011-04-13 | 东洋制罐株式会社 | Structure, method of forming structure, method of laser processing, and method of discriminating between true and false objects |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5364829A (en) * | 1991-08-30 | 1994-11-15 | Matsushita Electric Industrial Co., Ltd. | Rewritable recording medium and a method of recording in the same |
| US5350198A (en) * | 1991-10-18 | 1994-09-27 | Gao Gesellschaft Fur Automation Und Organisation Mbh | Recording medium with colored picture information, in particular a check card or identity card |
| US6633321B1 (en) * | 1999-03-16 | 2003-10-14 | Maurer Electronics Gmbh | Method for recording image information |
| CN101546138A (en) * | 2008-03-28 | 2009-09-30 | 夏普株式会社 | Electrophotographic photoreceptor and image formation device provided with the same |
| CN102015188A (en) * | 2008-05-07 | 2011-04-13 | 东洋制罐株式会社 | Structure, method of forming structure, method of laser processing, and method of discriminating between true and false objects |
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