Borofloat window

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Product Detail

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Description

Borofloat Window is made by SCHOTT Borofloat 33 or Plexy . Can be custom-made at any size. Besides round, Borofloat windows at shape of quadrate, triangular, or other polygonal are available

The wavelength of  SYCCO  general windows substrate(without coating)

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Specifications

Attribute General High Precision
Dimension Tolerance: +0.0/-0.2mm +0.0/-0.02mm
Thickness Tolerance: ±0.2mm ,±0.005
Surface Quality: 60/40 10/5
Clear Aperture: 90% 95%
Flatness: λ/2 λ/10
Parallelism: <3 arc min. <3 arc sec.
AR Coated: Uncoated, AR, HR, PR, etc. Uncoated, AR, HR, PR, etc.

Materials characteristic

B270

CaF2

Ge

MgF2

N-BK7

Sapphire

Si

UV Fused Silica

ZnSe

ZnS

Refractive index (nd)

1.523

1.434

4.003

1.413

1.517

1.768

3.422

1.458

2.403

2.631

Coefficient of dispersion (Vd)

58.5

95.1

N/A

106.2

64.2

72.2

N/A

67.7

N/A

N/A

Density(g/cm3)

2.55

3.18

5.33

3.18

2.46

3.97

2.33

2.20

5.27

5.27

TCE(μm/m℃)

8.2

18.85

6.1

13.7

7.1

5.3

2.55

0.55

7.1

7.6

Soften Temperature(℃)

533

800

936

1255

557

2000

1500

1000

250

1525

Knoop hardness

(kg/mm2)

542

158.3

780

415

610

2200

1150

500

120

120

We can supply you professional customized service

a: Dimesion size : 0.2-500mm , thickness >0.1mm
b: Many material could be choiced , include IR material like Ge, Si, Znse, fluoride and so on
c: AR coating or as your request
d: Product shape : round , rectangle or custom shape

Packaging & Delivery

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