Visiontek Systems Ltd.

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EMI Mesh Comparison Data Sheet

Woven meshes for shielded windows, apertures and displays where an electronic enclosure requires shielding from electromagnetic interference (EMI) or is emitting electromagnetic energy which may cause interference with another system but requires a high level of visible light transmission or image clarity.

Product range

                   Blackened 100opi copper is a rugged mesh that is recommend for standalone use.

                   EmiClare is Optical filters proprietary mesh optimised for optical performance without sacrificing

                   EMI performance. This is only supplied in finished window formats.

          MicroMesh is an etched copper grid matrix with higher light transmission and optical clarity. This is only supplied in fully laminated windows.

                   Conventional stainless steel metal mesh and coated woven fabric are also available.

          Low ohms/sq EMI-ITO coated film that has no grid pattern.
 

Material

Light T%

Surface

Resistivity

Ohms/sq

Format

SE

Graph Key

EmiClare

80%

0.030

Only in final window form

 

MicroMesh

89%

0.050

Laminated window only

 

50opi .001 Blk Cu plated S/S

75%

0.025

Sheets 450 x 600mm

n/a

80opi .001 Blk Cu plated S/S

71%

0.020

Sheets 450 x 600mm

n/a

100opi .001 Blk Cu plated S/S

65%

0.020

Sheets 450 x 600mm

 

100opi .002 VIS Blk Copper

60%

0.010

Sheets upto 1200 x 2500mm

 

100opi .002 conventional Blk Cu

60%

2.0 +

# Not supplied by Visiontek

 

100opi .002 unblk copper

60%

0.010

Rolls 1200m wide

 

Coated Woven Fabric

66%

0.140

Rolls 1200m wide

 

Flexshield 15 ohms/sq. film

82%

12-15

Rolls 1200m wide

 

Blackening

To eliminate light reflections the mesh is blackened. Visiontek Systems proprietary blackening

system is highly conductive and enhances shielding effectiveness at frequencies below 10GHz. The stainless steel meshes are copper plated before blackening.

Window design options

Refer to EmiClare data sheets for finished window options.

Custom optical laminations in glass, polycarbonate and acrylic.

Cut to final size or complex form by CNC with optional  conductive tapes or gaskets.

 

All our details are listed below.

 

VisionTek Systems Ltd.

 

1 The Acorns

Upton

Chester

Cheshire CH2 1JL

United Kingdom

 

Tel : 44 (0) 1244 377569

Fax : 44 (0) 1244 241241

e-mail:  visiontek.sales@gmail.com