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optical
components
Fused
&Synthetic Quartz .
Technical
Data
Polished discs & Rod
| Standard
Disc Diameter |
Standard
Thickness available |
Catalogue
Number |
| 5 |
1,
2 & 3mm |
QPD
5 |
| 10 |
1,
2 & 3mm |
QPD
10 |
| 15 |
1,
2 & 3mm |
QPD
15 |
| 20 |
1,
2 & 3mm |
QPD
20 |
| 25 |
1,
2 & 3mm |
QPD
25 |
| 30 |
1,
2 & 3mm |
QPD
30 |
| 35 |
1,
2 & 3mm |
QPD
35 |
| 40 |
1,
2 & 3mm |
QPD
40 |
| 45 |
2,
3 & 4mm |
QPD
45 |
| 50 |
2,
3 & 4mm |
QPD
50 |
| 55 |
2,
3 & 4mm |
QPD
55 |
| 60 |
2,
3 & 4mm |
QPD
60 |
| 65 |
2,
3 & 4mm |
QPD
65 |
| 70 |
2,
3 & 4mm |
QPD
70 |
| 75 |
2,
3, 4 & 5mm |
QPD
75 |
| 80 |
2,
3, 4 & 5mm |
QPD
80 |
| 85 |
2,
3, 4 & 5mm |
QPD
85 |
| 90 |
2,
3, 4 & 5mm |
QPD
90 |
| 95 |
2,
3, 4 & 5mm |
QPD
95 |
| 100 |
2,
3, 4 & 5mm |
QPD
100 |
| Larger
sizes available on request |
Thinner
& thicker sizes available on request |
Polished plates including
-
Microscope Slides 75mm x 25mm x 1,2,& 3mm thick
-
Watch glasses
-
Viewing windows for furnaces
Clear Fused Quartz:
This is the most effective general
purpose quartz available. It is a high quality quartz made from natural
quartz sand. Because it is made from natural resources, it does contain
impurities. The impurities may cause broad band absorption if the quartz
should solarize. Solarization appears as a purplish film over the length
of the lamp. The chart below represents the transmission properties.

Synthetic Fused Quartz:
This is a synthetic quartz grown from
SiCl4. It is volatilized in a oxygen flame, or, if a hydroxyl
free quartz is needed, it is formed by electrical arc in an oxidizing
atmosphere. This quartz does not solarize because of the absence of ionic
impurities normally associated with Clear Fused Quartz. The chart below
represents the transmission properties.
Transmission
Curve of UV Grade Silica

| |
|
Typical
production variation for 10mm thickness. Surface Reflection losses
included |
| |
|
Theoretical
Reflection Loss (uncoated) |
|
|
Typical
transmission for 10mm thickness. Surface Reflection Losses included |
|
Special
Properties
- Very High
ultraviolet transmission
- (UV)
- Low
thermal expansion
- Very
high temperature resistance
- Very
high temperature change resistance
- High
thermal shock resistance
- High
material purity
- Low
fluorescence
Typical
Applications
- UV-transmitting
optics
- High
temperature applications
- Cover
slides for ultraviolet light applications
- Mirror
substrates
- Measurement
and sensor technology
- Windows
for spacecrafts
Fused
Silica is a synthetic molten amorphous quartz glass. A very high
optical transmisson in the ultraviolet spectrum and an enormous
temperature resistance are only two of the unique properties of
this material. The remarkably high UV transparency cannot be
performed by any other glass. Synthetic quartz glass has a low
thermal expansion and a very high thermal shock resistance.
Silica glass components are manufactured from large material
blocks (boules). The raw material is sawn, ground, polished and
shaped to the desired specification. The material can be
selected for inclusions and index homogeneity requirements.
|
Refractive
Index
Density
Homogeneity
- Homogeneity
specifications (Class AA-E)
Inclusion
Classes
- Class
0 to 5 (detailed specifications)
Average
Coefficient of Thermal Expansion
Thermal
Characteristics
- Softening
Point approx. 1585°C
- Annealing
Point approx. 1075°C
- Strain
Point approx. 990°C
Further
detailed specifications on request
|
- To request
further information or a quotation please contact our sales team
-
- Telephone
- 00 44 (0)1473 626585
- FAX
- 00
44 (0)1473 610421
- POSTAL
ADDRESS -
30Anson Road, Martlesham Heath, Ipswich, Suffolk, England,
- IP5 3RG.
|