|
Active metameric security devices using an electrochromic material |
Applied Optics, Vol. 50, Issue 9, pp. C41-C49 (2011)
http://dx.doi.org/10.1364/AO.50.000C41
Enhanced HTML 
Acrobat PDF (852 KB)
Abstract
In order to increase the anticounterfeiting performance of interference security image structures, we propose to implement an active component using an electrochromic material. This novel device, based on metamerism, offers the possibility of creating various surprising optical effects, it is more challenging to duplicate due to its complexity, and it adds a second level of authentication. By designing optical filters that match the bleached and colored states of the electrochromic device, one can obtain two hidden images—one appearing when the device is tilted, and the other one disappearing when the device is colored under an applied potential. Specifically, we present an example of a filter that is metameric with the colored state of the electrochromic device, demonstrate how the dynamic nature of the device offers more fabrication flexibility, and discuss its performance. We also describe a design methodology for metameric filters based on the luminous efficiency curve of the human eye: this approach results in filters with a lower number of layers and hence lower fabrication costs, and with a lower color difference sensitivity under various illuminants and for nonstandard observers.
© 2011 Optical Society of America
OCIS Codes
(230.2090) Optical devices : Electro-optical devices
(310.6845) Thin films : Thin film devices and applications
History
Original Manuscript: July 27, 2010
Revised Manuscript: September 7, 2010
Manuscript Accepted: September 10, 2010
Published: October 14, 2010
Citation
Bill Baloukas, Jean-Michel Lamarre, and Ludvik Martinu, "Active metameric security devices using an electrochromic material," Appl. Opt. 50, C41-C49 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-9-C41
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Generation of coherent optical radiation by electronic means: the electro-optical parametric oscillator (OL)
- Electro-optic single-crystalline organic waveguides and nanowires grown from the melt (OE)
- Electrochemical threshold conditions during electro-optical switching of ionic electrophoretic optical devices (AO)
- WO3/SiO2 composite optical films for the fabrication of electrochromic interference filters (AO)
- Electro-optical control in a plasmonic metamaterial hybridised with a liquid-crystal cell (OE)
Related Conference Papers
- Trap-states Influence on Transient Electroluminescence of CBP:Ir(ppy)3-based Organic Light Emitting Diodes
- Trap-states Influence on Transient Electroluminescence of CBP:Ir(ppy)3-based Organic Light Emitting Diodes
- Trap-states Influence on Transient Electroluminescence of CBP:Ir(ppy)3-based Organic Light Emitting Diodes
- Trap-states Influence on Transient Electroluminescence of CBP:Ir(ppy)3-based Organic Light Emitting Diodes
- Impact of Two Competing Energy Transfer Mechanisms on Spectra in Organic Light Emitting Diodes
« Previous Article | Next Article »
OSA is a member of 