Product Details

Polished JGS1 Fused silica/quartz glass circular optical windows

Product Introductions

Dimension: 23(+/-0.1)*1.5(+/-0.05)mm

material:JGS1 fused silica

both sides polished

280nm light tranmission 93%

Due to its high optical homeogeneity and low infractive index, quartz glass watch window can be widely used in optical lab and industry . In addition, its high temperature resistant and low thermal coffeficient also makes quatz popluar in optical designs.

Regular working temperature: 1100°C

Working temperature for short term:1100°C.

instant working max temperature:1300°C.

Resistant of strong chemistry like acid or alkali

Physical Parameter of ZCQ Quartz Products:

Parameter	Standard	Precision	Ultra precision
Dimensional Tolerance	±0.1	±0.1	±0.1
Clear Aperture	>80% to >90%	>80% to >90%	>80% to >90%
Surface Quality	60-40	40-20	20-10 to 10-5
Parallelism	1 arc min	30 arc seconds	1 arc min
Wavefront Distortion	1λper 25mm	λ/4	λ/10
Protective Bevel	<0.25x45 deg	<0.25x45 deg	<0.25x45 deg
Coating	optional

Optical Property:

Technical Information :

Density	2.203 g/cm3
Hardness	7 (Modified Scale); 5.36.5 (Mohs Scale)
Tensile strength	48.3 MPa
Compressive strength	>1.1 GPa
Bulk modulus	~37 GPa
Rigidity modulus	31 GPa
Young's modulus	71.7 GPa
Poisson's ratio	0.16
Coefficient of thermal expansion	5.5×10-7 cm/(cmK) ( from 20°C to 320°C)
Thermal conductivity	1.3 W/(mK)
Heat capacity	45.3 J/mol
Softening point	1730°C
Annealing point	1180°C
Strain point	1075°C
Electrical resistivity	>1018 Ωm
Dielectric constant	3.75 at 20°C 1 MHz
Dielectric loss factor	less than 0.0004 at 20°C 1 MHz
Index of refraction at 587.6 nm (nd)	1.4585

Packaging & Shipping

package: protection paper, green air bag, air film, carton ,

safe and ecnomic even for freight collect as well.

Shipping methods and charges:

China post(15-25days)

Epacket to USA (10-15days)

EMS(7-10days)

Fedex(5-7days)

DHL(5-7days)

Actual shipping charge will be calculated upon product weight.

Our Services

1.Based in Beijing, heart of China, ZCQ is a technology and quality oriented manufaturer with 20 years history.

2.With senior engineer supervise, we are glad to advise customers on pressure, temperature etc application and engineering questions.

3.ZCQ accepts second production in case some products don’t meet requirements.

4.1 hour from international meeting center of Beijing, ZCQ invites guests to visit our company after long day meeting and get relaxed in nature. Our company is also sitted in arms of mountains and river.