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Quartz Condenser & boiling flaskH.BAUMBACH & CO.LTD. Quartz Glass Blowing Specialists

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

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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

 

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
  • nD = 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. 1585C
  • Annealing Point approx. 1075C
  • Strain Point approx. 990C


Further detailed specifications on request

 

 

 

 

 

 

 

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

 

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