ESE March10 pg14_15_Layout 1 26/02/2010 13:01 Page 1
14 ENCLOSURES
MoRe tHAn
Meets tHe eye
Specifying EMI screened optical windows for an enclosure
is more tricky than it first appears. Kemtron provides a
checklist to consider when specifying shielded windows
Sourcing the right EMI screened windows is a balancing act between applied to the substrate's
providing a high performance EMI shield and maintaining optimum surface.
optical transparency.
Essentially, EMI
This is further complicated by the fact that screening or shielding shielded windows provide
is achieved in two ways. Firstly, it can be achieved using a fine protection against
woven wire mesh trapped between, or embedded in, a clear optical radiated emissions while
Termi
nation
is ach
i
substrate. Alternatively, it can be realised by a transparent vapour enabling users to view
a
e
r
v
o
e
u
d
n
d
w
i
t
t
h
h
e
F
w
IP
in
g
d
a
o
s
w
ket
deposited conductive coating, such as indium tin oxide (ITO) or gold, display devices
EMI/RFI Shielding Solutions
L Large inventory for immediate delivery
L Finest catalog in the industry: print and web
L Exceptional FREE sample program
L Product specialists for application assistance
L Computerized quoting for instant pricing
L Industry leader of innovative designs
L Customization of standard products
L Better than 99% quality rating
L Highly skilled customer service
L ISO 9001:2000 Registered
Visit our web site for
the distributor in your country!
www.tech-etch.com
TECH-ETCH, INC., { x