Hologravure as a computer-generated and laser engraved scratch hologram
| Autor: | Ángel G. Augier, Raúl B. Sánchez |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Diffraction
Computer science business.industry Holography Laser Engraving Computer-generated holography Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Transparency (projection) Optics Scratch law Virtual image visual_art visual_art.visual_art_medium Electrical and Electronic Engineering Physical and Theoretical Chemistry business computer computer.programming_language |
| Zdroj: | Optics Communications. 284:112-117 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2010.09.008 |
| Popis: | We presented “hologravure” as the generalization of a scratch hologram, generated by computer from a three-dimensional (3D) model by using an appropriate software, and laser-drawing with a conventional engraver-laser system. For making this type of computer-generated hologram, neither diffractive optics, nor mask pattern or photo-reduction of a transparency onto a high resolution film plate is needed. The shape of a 3D virtual object is encoded in a two-dimensional (2D) multiple circular-scratch drawing. A computer program was created for generating the holograms. Hologravures representing several 3D models are engraved on different materials, and the quality of the lines traced by the CO 2 laser is considered. Sheets of acrylic, polycarbonate, glass and thermo-resistant pieces of acetate were tested. Reconstructed images of all this computer-generated and laser engraved holograms and also of computer assisted and hand-drawn scratch holograms, synthesized by means of the same software are shown. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect