Fuzhou Esteemoptics Co.,Ltd

FEATURED IN OPTICAL COATING, HIGH POWER MIRRORS, BANDPASS FILTERS, PRECISION OPTICS.

PRODUCTS > OPTICAL COMPONENTS > WINDOWS > BK7 WINDOWS

¡§ Transmission Range: 330-2100nm

¡§ Refractive Index: 1.5164@588nm

¡§ Good performance over visible and near IR spectrum for most application.
FEATURES

High Precision BK7 Windows

How to Order:

For Example: WNH0201

(Part Number)

Notes:

Other material and size are also available upon request.

¦µ (mm)

T(mm)

1¡¯ Parallelism

10¡± Parallelism

Part No

Part No

10.0

6.0

WNH0201

WNH0211

12.7

6.0

WNH0202

WNH0212

25.0

6.0

WNH0203

WNH0213

25.4

6.35

WNH0204

WNH0214

30.0

6.0

WNH0205

WNH0215

50.0

10.0

WNH0306

WNH0316

Specifications:

Material: BK7 grade A optical glass

Diameter Tolerance: +0.0, -0.1mm

Thickness Tolerance: +/-0.2mm

Clear Aperture: >80%

Parallelism:  see the table

Surface Quality: 20-10 scratch and dig

Wavefront Distortion: ¦Ë/10 per 25mm at 632.8nm

Protective Bevel

Standard BK7 Windows

Part No

¦µ (mm)

T (mm)

WNL0101

10.0

3.0

WNL0102

12.7

3.0

WNL0107

15.0

1.0

WNL0108

15.0

3.0

WNL0103

25.0

3.0

WNL0104

25.4

3.0

WNL0105

30.0

3.0

WNL0106

50.0

3.0

WNL0109

50.8

6.35

Specifications:

Material: BK7 grade A optical glass

Diameter Tolerance: +0.0, -0.1mm

Thickness Tolerance: +/-0.2mm

Clear Aperture: >80%

Parallelism:  1 arc minutes

Surface Quality: 60-40 scratch and dig

Wavefront Distortion: ¦Ë/4 per 25mm at 632.8nm

Protective Bevel