FR2883504A1 - Digitized visual art work reproducing method for e.g. wall publicity, involves controlling laser scanning surface of work to be reproduced, based on color/gray level digitization, where surface is coated with oil/acrylic/glyptal paint - Google Patents

Abstract

The method involves digitizing the details of a color or of a gray level of a digitized visual art work, and controlling the laser scanning of a surface, on which a model of the work is to be reproduced, based on the digitized data. The laser sends a light ray, on the surface covered with a coating, with a light intensity sufficient for marking the surface. The surface is coated with oil paint, acrylic paint, glyptal paint, water colors, pastels, inks, natural pigments, chemical pigments, hues, wax, satin finished polyurethane varnish, mineral filler or a metallic filler.

Description

1 2883504

  The present invention relates to a method for reproducing on a surface all digitized visual works.

  The reading of traditional visual works is mainly related to the sense of sight. The majority of the works thus leaves the private persons partly or totally of this sense. The technique according to the invention makes it possible to offer two levels of reading, tactile and visual, which makes it possible to bring together clairvoyants, the visually impaired and the blind. This process allows, among other things: - tactile reading, text and image, much more precise than the embossed paper used in illustrations - stability over time due to a better resistance of the support to wear, wear caused by reading touch.

  - to promote the opening of the world of art to the visually impaired and the visually impaired, among others in museums, by reproducing works of art according to the process, with the possibility of adding all the desired indications in Braille writing such as name of the author, title of the work, dimension of the work, writing reproduced also according to the process.

  - to promote artistic creation - to use works produced or reproduced in wall advertising, in publishing advertising. -use the works produced or reproduced for all advertising, branding, logos. - to produce works ranging from the miniature to the mural.

  - to produce illustrations and texts for all publications for sighted or blind or visually impaired.

  - to produce or reproduce works for commemorative, religious or tourist souvenirs.

  Reproducible works are all visual works that can be digitized or digitized by their nature. These works to be reproduced mainly for silver prints, digital photos, films, drawings, paintings, frescoes, watercolors, oils, pastels, pencils, etchings, lithographs, engravings, sculptures, writing, calligraphy, including computer design, the computer drawing and all graphic, artistic, advertising expressions.

  To implement the method, it is necessary to use a digital recording of the works to be reproduced. This digital recording of works is divided into two groups: - digital recording by nature: works produced by digital devices such as digital camera, digital camera, creation software, editing and editing digital images, computer-aided design, drawing computer assisted.

  2 2883504 - digital recording by acquisition: works acquired through digital transmission such as web, email, webcam, telephone or works acquired through digital apparatus such as a digital camera, digital camera, scanner or works acquired through digital media type compact disc, DVD.

  This digital data is used to control the laser scanning of a surface where the model is reproduced.

  The surface in which the model is reproduced consists of a composite or hydraulic or glycerophthalic or cellulosic or acrylic coating. The coating used may be of vegetable, mineral or synthetic origin. These coatings being, among others based on plaster, lime, cement, earth, tadelakt, stucco. We can add loads such as marble powder, bronze, quartz. Advantageously, a fine-grained coating is used to give details of the reproduced work.

  This surface can: - be worked as it is - be treated in order to increase its resistance against shocks, wear, dirt: use water-based or polyurethane varnishes, glazing, hardeners or composites . The final appearance is according to choice, matte, satin or gloss. Advantageously, a satin polyurethane varnish will be used.

  - to emphasize certain aspects and improve the aesthetics of the model, to be advantageously covered by oil painting, acrylic paint, glycerophtalic paint, watercolors, pastels, inks, natural pigments, synthetic pigments, dyes, waxes, varnishes, mineral fillers , vegetable fillers, metal charges and all products enabling the work to be revealed, recoveries used alone or in combination.

  This surface will be subjected to the laser scanning which, according to the clairsobscurs of the original work, will degrade the surface with more or less depth. All types of marking lasers can be used, such as YAG or CO2 lasers. Advantageously, the CO2 laser will be used with the following adjustments: the power used, among the existing models, allowing a luminous intensity sufficient to mark the surface, power ranging between 5 watts and 3000 watts will advantageously be 30 watts.

  - Marking depth between 0 and 3 mm is advantageously 0.2 mm. - pulses per inch between 60 and 2400 will advantageously 300.

  - Scanning speed between 0 and 5 meters per second will advantageously del.5m per second.

  - Focal distance between 0.1 mm and 100 mm will advantageously 50.8 mm 3 2883504 - wavelength between 8 and 12 microns will advantageously 10.6 micrometers The works thus worked can: - remain in the state - be treated so to increase resistance against shocks, wear and dirt: use water-based or polyurethane varnishes, glazing agents, hardeners or composites. The final appearance is according to choice, matte, satin or gloss. Advantageously, a satin polyurethane varnish will be used.

  - to highlight certain aspects and improve the aesthetics of the model, be advantageously covered by oil painting, acrylic paint, glycerophthalic paints, watercolors, pastels, inks, natural pigments, synthetic pigments, dyes, waxes, varnishes, mineral fillers , vegetable fillers, metal fillers, gold leaves, copper sheets and all products enabling the work to be revealed, coverings used alone or in combination.

  The works thus produced according to the invention are particularly intended for the field of museology, the field of artistic creation, the decorative field, the advertising field.

Claims (2)

4 2883504 CLAIMS   1) A method for reproducing a work on a surface, characterized in that it comprises the steps of: digitizing the details of colors or gray levels of the work - on the basis of these data, controlling a laser that sends a ray of light on a coated surface with a luminous intensity sufficient to mark the surface.   2) Process according to claim 1 characterized in that the coating is a hydraulic coating or glycerophthalic or cellulosic or acrylic or mineral or vegetable, or metallic or composite.   3) Process according to claim 1 and 2 that the coating is of a following base: plaster, lime, cement, earth, tadelakt, stucco or composite.   4) Method according to any one of the preceding claims characterized by the use of marking lasers, such as lasers YAG or CO2.   5) Process according to any preceding claim characterized by the use of a CO2 laser with the following settings: power between 5 watts and 3000 watts will advantageously 30 watts.   - Marking depth between 0 and 3 mm is advantageously 0.2 mm. - pulse per inch between 60 and 2400 will advantageously 300.   - Scanning speed between 0 and 5 meters per second will advantageously del.5m per second.   - Focal length between 0.1 mm and 100 mm is advantageously 50.8 mm - Wavelength between 8 and 12 microns is preferably 10.6 micrometers 6) Method according to any one of the preceding claims, characterized by the treatment of the surface is before or after marking or both, intended to increase its mechanical resistance and against soiling.   7) Process according to claim 6 characterized by the use of varnish, resin, hardener or composite.   8) Method according to any one of the preceding claims characterized by the treatment of the surface to highlight certain aspects, improve the aesthetics of the work. 2883504 CLAIMS   9) Process according to any one of the preceding claims characterized by the application of oil paint, acrylic paint, glycerophthalic paint, watercolors, pastels, inks, natural pigments, synthetic pigments, dyes, waxes, varnish, mineral fillers, vegetable fillers, and all products allowing to reveal the work, recoveries used alone or in combinations.