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Fused Silica Grades Glass Sheets Optics Manufacturers

Categories Fused Silica Optics
Brand Name: FSO
Model Number: FSO-1
Certification: ROHS/SGS
Place of Origin: China
MOQ: 1 pcs
Price: Negotiation
Payment Terms: T/T
Supply Ability: 10000pcs/month
Delivery Time: As customer's requirement
Packaging Details: Standard
Material: JGS1,JGS2,JGS3 or optical material
Size: customized
Surface quality: 40/20 or better
Diameter Tolerance: 0.0/-0.1mm
Thickness: ±0.1mm
Bevel: 0.1-0.3mm X45 Degree
Surface Accuracy: >90%
Coating: upon request
OEM: Accepted
ODM: Available
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Fused Silica Grades Glass Sheets Optics Manufacturers

Fused Silica Grades Glass Sheets Optics Manufacturers

Fused silica glass optics is based on UV synthetic fused silica,which shows better performance from UV to IR spectrum than BK7 material. Also, it is the best choice in terms of thermal stability. In addition to superior transmission characteristics, fused silica exhibits higher thermal properties, exceptional purity, and excellent environmental durability for applications.


Specification

Materialfused silica or JGS1,JGS2,JGS3
Diameter tolerance+/-0.1 mm
Thickness tolerance+/-0.1 mm
Clear Aperture>90%
Parallelism3 arc minutes
Surface Quality40/20 scratch and dig
Surface irregularityλ/4 (at) 632.6nm
Protective Bevel0.25x45°

Features:low cost, low thermal coefficient of expansion, better thermal stability, superior properties of transmission, mechanics and optics.


Applications:Electrics, precision optics, laser equipments,optics communication, emitter/detector protection devices (such as in spectrophotometers), and imaging systems etc.


Transmission Curve for JGS1,JGS2 and JGS3


Ultraviolet Grade Fused Silica: JGS1 (China), equivalent to Suprasil 1 and 2 (Heraeus), Spectrosil A and B (Saint-Gobain) and Corning 7940 (Corning), Dynasil 1100 and 4100 (Dynasil).

Optical Grade Fused Quartz: JGS2 (China), equivalent to Homosil 1, 2 & 3 (Heraeus), Dynasil 1000 & 4000 and 5000 & 6000 (Dynasil)


IR grade Fused Silica: JGS3 (China), equivalent to Suprasil 300 (Heraeus).


Difference properties


Parameter



JGS1



JGS2



JGS3



Maximum Size



<φ200mm



<φ300mm



<φ200mm



Transmission Range
(Medium transmission ratio)



0.17~2.10um
(Tavg>90%)



0.26~2.10um
(Tavg>85%)



0.25~3.50um
(Tavg>85%)



OH- Content



1200 ppm



150 ppm



5 ppm



Fluorescence (ex 254nm)



Virtually Free



Strong v-b



Strong V-B



Impurity Content



5 ppm



20-40 ppm



40-50 ppm



Birefringence Constant



2-4 nm/cm



4-6 nm/cm



4-10 nm/cm



Melting Method



Synthetic CVD



Oxy-hydrogen melting



Electrical melting



Applications



Laser substrate: Window, lens, prism, mirror...



Semiconductor and high temperature window



IR substrate



Same Properties


Density


2.20g/cm3



Abbe Constant


67.6


Refractive Index (nd) at 588nm

1.4586



Wavelength (um)



Refractive Index (n)


Wavelength (um)


Refractive Index (n)

0.2001.550511.0001.45042
0.2201.528451.0641.44962
0.2501.507451.1001.44920
0.3001.487791.2001.44805
0.3201.482741.3001.44692
0.3601.475291.5001.44620
0.4001.470121.6001.44342
0.4501.465571.7001.44217
0.4881.463021.8001.44087
0.5001.462331.9001.43951
0.5501.460082.0001.43809
0.5881.458602.2001.43501
0.6001.458042.4001.43163
0.6331.457022.6001.42789
0.6501.456532.8001.42377
0.7001.455293.0001.41925
0.7501.454243.2001.41427
0.8001.453323.3701.40990
0.8501.452503.5071.40566
0.9001.451753.7071.39936

Hardness5.5 - 6.5 Mohs' Scale 570 KHN 100
Design Tensile Strength4.8x107 Pa (N/mm2) (7000 psi)
Design Compressive StrengthGreater than 1.1x109 Pa (160,000 psi)
Bulk Modulus3.7x1010 Pa (5.3x106 psi)
Rigidity Modulus3.1x1010 Pa (4.5x1066 psi)
Young's Modulus7.2x1010 Pa (10.5x106 psi)
Poisson's Ratio0.17
Coefficient of Thermal Expansion5.5x10-7cm/cm.°C (20°C-320°C)
Thermal Conductivity1.4 W/m.°C
Specific Heat670 J/kg.°C
Softening Point1683°C
Annealing Point1215°C
Strain Point1120°C
Electrical Receptivity7x107 ohm.cm (350°C)
Dielectric Properties (20°C and 1 MHz)
Constant
Strength
Loss Factor
Dissipation Factor
3.75
5x107 V/m
Less than 4x10-4
Less than 1x10-4
Velocity of Sound-Shear Wave3.75x103 m/s
Velocity of Sound/Compression Wave5.90x103 m/s
Sonic AttenuationLess than 11 db/m MHz
Permeability Constants (cm3mm/cm2 sec cm of Hg)
Helium
Hydrogen
Deuterium
Neon
(700°C)
210x10-10
21x10-10
17x10-10
9.5x10-10
Chemical Stability (except hydrofluoric)High resistance to water and acids

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