<%@LANGUAGE="VBSCRIPT" CODEPAGE="936"%> OP-Unite Solutions Ltd - BK7 Window
 
   
 
 

BK7 Window

BK7 Window are of high precision diemsion control, minimal transmitted beam deviation, high surface quality.With those excellent features, the BK7 window is widely use in projection optics systems, imaging and optical measurement system.

For your wide range of applications, OP-Unite can supply varieties of single layer or multiplayer anti-reflecting coating on optical windows. Please refer to Coatings chapter for more information.

   


High Precision BK7 Windows

General Specifications

Parameter

Commercial Grade

Substrate Material

BK7 grade A optical glass

Diameter Tolerance

+0/-0.05mm
Thickness Tolerance
+/-0.1mm

Clear Aperture

>Central 85% of diameter

Surface Quality

10-5 S/D

Parallelism

Refer to the table

Wavefront Distortion

¦Ë/10 per 25mm @632.8nm

Chamfer

0.25mm x 45¡ã

Coating

Uncoated

1' Parallelism

10" Parallelism

¦µ (mm)

T (mm)

Part No.

Part No.

WIN0401

WIN0201

10.0

6.0

WIN0402

WIN0202

12.7

6.0

WIN0403

WIN0203

25.0

6.0

WIN0404

WIN0204

25.4

6.0

WIN0405

WIN0205

30.0

6.0

WIN0406

WIN0206

50.0

10.0

Standard BK7 Windows

General Specifications

Parameter

Commercial Grade

Substrate Material

BK7 grade A optical glass

Diameter Tolerance

+0/-0.1mm
Thickness Tolerance +/-0.1mm

Clear Aperture

>Central 85% of diameter

Surface Quality

60-40 S/D

Parallelism

< 1 arc minute

Wavefront Distortion

¦Ë/4 per 25mm @632.8nm

Chamfer

0.25mm x 45¡ã

Coating

Uncoated

Part No.
¦µ (mm)
T (mm)

WIN0101

10.0

3.0

WIN0102

12.7

3.0

WIN0103

15.0

3.0

WIN0104

25.0

3.0

WIN0105

25.4

3.0

WIN0106

30.0

3.0

WIN0107

50.0

3.0

WIN0108

50.8

3.0

Note: The general tolerance specifications above provide a guideline regarding manufacturing capabilities for optics ranging in size from 2-360mm. The manufacturing limits are not absolute; tighter tolerances may be possible. Part specific tolerances may vary depending on component size, shape, and/or material.