Abstract
A field emission light source using cathodoluminescent (CL)
phosphors and a reticulated vitreous carbon (RVC) cathode is
presented. The flat-format design requires no microfabrication
technology and can be easily configured for light emission at
different wavelengths, ranging from UV to visible, to infrared. The
operation of a visible-spectrum light source was demonstrated by
testing both unpackaged devices in a vacuum environment and
proof-of-concept packaged lamps. The results exhibited excellent
field emission properties with a minimum extraction field of 1.7
V/μm and good uniformity. Luminance characteristics were also
excellent, with a white CL phosphor being excited up to
approximately 12 000 Cd/m<sup>2</sup>. Lower levels of luminance are
applicable to display backlights.
© 2011 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription