Share Email Print
cover

Proceedings Paper

Microlenses fabrication on glass by combining laser with thermal-reflow technique
Author(s): Daniel Nieto; Justo Arines; Carlos Gomez-Reino; Gerard M. O'Connor; M. Teresa Flores-Arias
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We describe a hybrid technique for fabricating microlens arrays on soda-lime glass substrates composed by a direct-laser write and post thermal treatment. In particular we use a nanosecond Q-Switch Nd: YVO4 laser and a mufla Heraeus furnace. Temperature dependence of the reflowing process was analyzed in the range of 620°C-670°C. An improvement in the optical quality of the microlens arrays were obtained as temperature increases. The best microlens array was obtained at 670°C with the following characteristics: diameter 47.89±6.65μm; focal length 510±10μm; and focal spot size 2.82±0.02μm. The presented technique has been shown to be capable of fabricating low cost microlens arrays with good optical quality.

Paper Details

Date Published: 21 October 2011
PDF: 6 pages
Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 80110T (21 October 2011); doi: 10.1117/12.902099
Show Author Affiliations
Daniel Nieto, Univ. de Santiago de Compostela (Spain)
Instituto de Ciencia de Materiales de Aragón (Spain)
National Univ. of Ireland, Galway (Ireland)
Justo Arines, Univ. de Santiago de Compostela (Spain)
Carlos Gomez-Reino, Univ. de Santiago de Compostela (Spain)
Instituto de Ciencia de Materiales de Aragón (Spain)
Gerard M. O'Connor, National Univ. of Ireland, Galway (Ireland)
M. Teresa Flores-Arias, Univ. de Santiago de Compostela (Spain)
Instituto de Ciencia de Materiales de Aragón (Spain)


Published in SPIE Proceedings Vol. 8011:
22nd Congress of the International Commission for Optics: Light for the Development of the World

© SPIE. Terms of Use
Back to Top