Optical Window, Parallel, N-BK7, 12.7 mm, λ/20, Uncoated

The 05BW40-30 Laser-Grade Parallel Window is parallel to less than 30 arc sec for minimal transmitted beam deviation. This 1/2 inch (12.7 mm) diameter N-BK7 window is 6 mm thick. It is uncoated. For demanding applications, such as intracavity laser applications, holography, and multiphoton imaging, this window has a λ/20 surface flatness and 10-5 scratch-dig significantly reducing unwanted scatter.

Specifications

Technical Specs

Diameter
12.7 mm
Material
Grade A N-BK7
Antireflection Coating
Uncoated
Surface Flatness
λ/20 @ 632.8 nm
Surface Quality
10-5 scratch-dig
Thickness
6.0 mm
Thickness Tolerance
±0.25 mm

Chamfers
0.25–0.75 mm face width
Chamfers Angle/Tolerance
45° ±15°
Cleaning
See How to Clean Optics
Clear Aperture
Central 85% of diameter
Diameter Tolerance
+0/-0.15 mm
Wedge
≤30 arc sec

Diameter
12.7 mm
Material
Grade A N-BK7
Antireflection Coating
Uncoated
Surface Flatness
λ/20 @ 632.8 nm
Surface Quality
10-5 scratch-dig
Thickness
6.0 mm
Thickness Tolerance
±0.25 mm

Chamfers
0.25–0.75 mm face width
Chamfers Angle/Tolerance
45° ±15°
Cleaning
See How to Clean Optics
Clear Aperture
Central 85% of diameter
Diameter Tolerance
+0/-0.15 mm
Wedge
≤30 arc sec

Resources & Downloads

3D Product Models

2D Product Drawings

PARALLEL-S(95 kB, PDF)
05BW40-30 Zemax File(5.5 kB, ZMX)

Other

05BW40-30 RoHS Certificate(706.3 kB, PDF)

Related Products

Compatible

Description	Compatibility
Variable Size Lens Mount, 12.7-35 mm, 40 TPI XY Adjusters	UNIVERSAL	Learn More
Precision Lens Positioner, 0.5 in., 100 TPI XYθXθY, 80 TPI Z	UNIVERSAL	Learn More
V-Groove Lens Holder, 0.25 to 1.25 in. Diameter Lenses	UNIVERSAL	Learn More

Need help?

Contact an Applications Specialist by sending us an email