Application of Laser to Digital Printing. Laser Dye Thermal Transfer Printing Using Nd: YAG Laser

Autor:	Masatoshi Katoh, Ryoji Arima, Yoshiaki Odai, Takashi Takeda
Rok vydání:	1997
Předmět:	Dye laser Materials science Halftone business.industry Thermal Head Thermal transfer Laser law.invention Optics law Nd:YAG laser Optoelectronics Laser power scaling business Pulse-width modulation
Zdroj:	The Review of Laser Engineering. 25:629-633
ISSN:	1349-6603 0387-0200
Popis:	In laser dye thermal transfer printing using a focused laser beam as the heat source, continuous-tone images with very high resolution are obtained. However, the printing speed is relatively low compared to that of thermal head printing, in which a large number of dots can be recorded simultaneously. To shorten the printing time, a high-power Nd:YAG laser is used for the light source in our printing system. Printing characteristics with a short pulse, of the order of 1μsec, are evaluated in this printing system. As a result, continuous-tone printing with a short pulse of 2μs is feasible when laser power is 1.0W, indicating a significant advance in printing speeds. The transfer efficiency as a function of pulse width has a peak that can be observed. Good halftone printing of high definition image with 400lpi is also performed using this system.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7ffe31e0526b586f766f0ff6d592c391 https://doi.org/10.2184/lsj.25.629 Zobrazit plný text záznamu