Smart optical writing head design for laser-based manufacturing

Thumbnail Image
Files
Date
2014-03-06
Authors
Amin, M. Junaid
Riza, Nabeel A.
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Photo-optical Instrumentation Engineers (SPIE)
Published Version
10.1117/12.2038352
Research Projects
Organizational Units
Journal Issue
Abstract
Proposed is a smart optical writing head design suitable for high precision industrial laser based machining and manufacturing applications. The design uses an Electronically Controlled Variable Focus Lens (ECVFL) which enables the highest achievable spatial resolution of writing head spot sizes for axial target distances reaching 8 meters. A proof-of-concept experiment is conducted using a visible wavelength laser with a collimated beam that is coupled to beam conditioning optics which includes an electromagnetically actuated deformable membrane liquid ECVFL cascaded with a bias convex lens of fixed focal length. Electronic tuning and control of the ECVFL keeps the laser writing head far-field spot beam radii under 1 mm that is demonstrated over a target range of 20 cm to 800 cm. Applications for the proposed writing head design, which can accommodate both continuous wave and pulsed wave sources, include laser machining, high precision industrial molding of components, as well as materials processing requiring material sensitive optical power density control.
Description
Keywords
Industrial machining , Programmable optics , Laser-based cutting , Optics manufacturing , Laser development , Laser applications
Citation
Amin, M. J. and Riza, N. A. (2014) 'Smart optical writing head design for laser-based manufacturing', SPIE Proceedings, 8967, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XIX, 89671D (6 March), doi: 10.1117/12.2038352
URI
https://hdl.handle.net/10468/10046
Collections
Electrical and Electronic Engineering - Conference Items
Copyright
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.