Crystals & Optical Components Manufacturer - Dayoptics Company from China

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	Waveplate
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	Windows
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	A-O Q Switch
	Green Laser Module
	Micro-optics Assembl

Windows

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Overview

Windows are applied to isolate different physical environments while allowing light to passing through. When selecting windows, it's impossible to consider materials, transmission, scattering, wave front distortion, parallelism and resistance to certain environment. Dayoptics offers all kinds of windows, which are made from different materials. Windows of special sizes and materials are available upon requirement.

Single layer or multiplayer anti-reflecting or high-reflecting coatings on optical windows are available upon customer's requirement.

Specification	BK7 Windows	Fused Silica Windows	Sapphire
Diameter Tolerance	+0.0, -0.1mm	+0.0, -0.1mm	+0.00nm, -0.2mm
Thickness Tolerance	±0.2mm	±0.2mm	±0.2mm
Clear Aperture	>80%	>80%	>85%
Parallelism	1'(Standard), 10"(High Precision)	1'(Standard), 10"(High Precision)	≤1minutes
Surface Quality	60/40(Standard), 10/5(High Precision)	60/40(Standard), 20/10(High Precision)	60/40(Standard), 10/5(laser quality)
Wavefront Distortion	λ (Standard), λ /10(High Precision) per 25mm @633mm	λ (Standard), λ /10(High Precision) per 25mm @633mm	1/10λ @ 633mm
Bevel	<0.25mm x 45°	<0.25mm x 45°	<0.25mm x 45°
Coating	AR Coating	AR Coating	AR Coating
Chamfer			<0.25mm x 45°
Substrate Material			UV grade fused silica, or BK7 glass