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Glass
- Display, Clear, Non Glare or MLAR
Visiontek
Systems carry an extensive range of glass which can be
supplied in sheets or machined to your drawing. Listed
below are the different types of glass available
| Standard
Sheet Size |
1600
x 1000mm |
| Standard
Thickness (mm) |
0.8,
1.1, 1.6, 2.0, 3.0, 4.0 |
| Colour |
Clear
and smoke |
Finish
We offer a high quality finishing service, with
a range of edging including clean-cut, flat
ground, beveling and polishing.
 | Glass
with an acid-etched surface finish provides
a high performance dispersive non-glare
front surface
|
| This
is a cost-effective solution where signal
image quality is not critical. The further
the non-glare surface is from the display
the greater the image haze
|
| Using
a non-glare etch on the front screen of a
CRT display can cause an interference with
the light etching on the tubes. This will
result in a coloured sparkling effect. To
overcome this distortion the screen should
be positioned at least 10cm from the
display. |
| Standard
Sheet Size |
640
x 510mm |
| Standard
Thickness |
0.95,1.6,
1.9, 2.9 |
| MLAR
coatings will reduce the reflectance of
plain glass by about 9 times to less than
0.5% across the visible spectrum. |
Spectral
Characteristics - measured at an angle of
incidence between 0 and 15°
| Absolute
reflectance |
Rabs
<0.6% 440 - 650nm |
| Average
reflectance |
Rave
< 0.3% 440 - 650nm |
Reference
specifications - MLAR coatings conform to
the requirements of the following
specifications:
| Coating
quality |
DIN
3140 part 10 (1978) |
| Abrasion
resistance |
MIL-E-12397B |
| Adhesion |
MIL-C-48497 |
| Temperature
and humidity |
MIL-C-48497 |
Standard
Sheet size (mm) |
425x
370 x 1.1
627 x 1000 x 1.6
800 x 1270 x 3.0 |
| At
least two and a half times as strong as
traditionally tempered glass· Five times as
strong as un-tempered glass
|
| It
can be ground, drilled and cut without any
risk of breakage
|
| Chemically
tempered glass, when laminated, will have a
localized break pattern for better
visibility |
| Minimum
thickness |
0.5mm |
| Maximum
part size |
400
x 500mm |
| Lead
time |
2-3
weeks |
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Thermally Toughened Glass
Toughened to BS 6206
Screens must be cut to
required size prior to toughening
Available uncoated or with
front surface multilayer anti reflection coating if
required. Anti reflection coating reduces reflection by almost
half from about 9% to 4.75%
Sizes min 90 x 90 mm
max. 650 x 650 mm
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