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A laser glass sculpture of a caffeine molecule. A bubblegram (also known as laser crystal, Subsurface Laser Engraving, 3D crystal engraving or vitrography) is a solid block of glass or transparent plastic that has been exposed to laser beams to generate three-dimensional designs inside.
Other terms often used for printed engravings are copper engraving, copper-plate engraving or line engraving. Steel engraving is the same technique, on steel or steel-faced plates, and was mostly used for banknotes, illustrations for books, magazines and reproductive prints, letterheads and similar uses from about 1790 to the early 20th century, when the technique became less popular, except ...
The candle is lighted, we cannot blow out, joint portrait of 15 Protestant reformers c. 1640, published by Thomas Jenner. With Michael Sparke, Jenner is regarded as a Puritan publisher, of works motivated by their moral, religious and Protestant patriotic content. [3]
Laser engraving metal plates are manufactured with a finely polished metal, coated with an enamel paint made to be "burned off". At levels of 10 to 30 watts, excellent engravings are made as the enamel is removed quite cleanly. Much laser engraving is sold as exposed brass or silver-coated steel lettering on a black or dark-enamelled background.
[37] [38] Though both groupings did not object to book illustrations or prints of biblical events, or portraits of reformers, production of large-scale religious art virtually ceased in Protestant regions after about 1540, and artists shifted to secular subjects, ironically often including revived classical mythology.
He worked on his photomechanical process in the 1850s and patented it in 1852 ('photographic engraving') and 1858 ('photoglyphic engraving'). [2] Photogravure in its mature form was developed in 1878 by Czech painter Karel Klíč, who built on Talbot's research. [3]:4 This process, the one still in use today, is called the Talbot-Klič process. [1]
A print made in 1907 from a photoengraved plate. It reproduces a sketch of Parga's castle made by Ludwig Salvator.. Photoengraving is a process that uses a light-sensitive photoresist applied to the surface to be engraved to create a mask that protects some areas during a subsequent operation which etches, dissolves, or otherwise removes some or all of the material from the unshielded areas of ...
Color Laser Engraving is a marking process that uses a MOPA fiber laser source to mark color on a metal surface, such as stainless steel or titanium.. Color marking in this way is not often used as it can be a laborious process, impermanent and is costly - largely due to the machinery involved.