Quartz Optical Windows & Quartz Polished Plate & Sight Glass

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Quartz Condenser & boiling flask H.BAUMBACH & CO.LTD. Quartz Glass Blowing Specialists

quartz rods, heat resistant glass, silica glass, fused glassware, spectrophotmeter cells

optical components

Optical Components -Optical Glass - Optical Windows - Optical Lens - Microscope slides - Sight glass

Polished Discs

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

Optical Components -Optical Glass - Optical Windows - Optical Lens - Microscope slides - Sight glass

Quartz tubes and Quartz plate can be polished to produce Optical windows, microscope slides & Sight glass. Below is a list of our standard polished items. Also available in Suprasil, Borosilicate and Sapphire glass

Quartz Polished plates - Quartz Microscope Slides - Quartz Cover Slip

Microscope Slides 75mm x 25mm x 1,2,& 3mm thick
Quartz Cover Slips
Watch glasses
Viewing windows & Sight Glass for furnaces & high pressure systems

Technical Data on 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.

Technical data on Clear Fused Quartz

Synthetic Fused Quartz - also known as Suprasil Quartz or Spectrosil 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

n_D = 1,45840 (589nm)

Density

2,20 g/cm³

Homogeneity

Homogeneity specifications (Class AA-E)

Inclusion Classes

Class 0 to 5 (detailed specifications)

Average Coefficient of Thermal Expansion

0,54 x 10^-6

Thermal Characteristics

Softening Point approx. 1585°C
Annealing Point approx. 1075°C
Strain Point approx. 990°C

Further detailed specifications on request

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Telephone - 00 44 (0)1473 626585
FAX - 00 44 (0)1473 610421
Postal Address - 30Anson Road, Martlesham Heath, Ipswich, Suffolk, England, IP5 3RG.
Electronic mail - sales@h-baumbach.co.uk