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Laser Optics

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Laser Lens
Laser Window

Laser Window

Generally, the window is parallel for both sides to protect the optical system and will be AR coating (AR: Anti Reflection) to prevent the loss of light beam. Depending on the application, the window material is used BK-7, Quartz, Sapphire, and so on.

GENERAL SPECIFICATION

	Super Precision	High Precision	Standard Precision
Material	BK7 grade A optical glass
Dimension Tolerance	+0/-0.10mm
Thickness Tolerance	±0.10mm
Clear Aperture	＞85%
Flatness(@633mm)	λ / 10	λ / 4	25mm per 1λ
Parallelism	10 arc seconds	30 arc seconds	1 arc minutes
Surface Quality(S/D)	20/10	40/20	60/40
Bevel	0.25mm × 45
Coating	Available upon request