Circular Optical Windows

Circular Optical Windows are available as both Laser Quality and Analytical Quality polish designated as LQ (Laser Quality) and AQ (Analytical Quality).

Circular Optical Windows are available in UV Grade Fused Silica (FS) & BK7 Glass materials*. Circular Optical Windows are flat polished round optical windows typically used to isolate environments while allowing light to pass relatively unimpeded. Optical Windows are generally used for view ports or sealing and or protecting other components within an optical assembly, instrument or laser.

*Also see our VUV grade MgF2, CaF2 & Crystal Quartz Windows for Vacuum UV (VUV) applications.

Also see our Square Optical Windows with additional UV Fused Silica & BK7 Glass Material Properties

For more information about Optical Windows, refer to our Optics Tutorial page.

OPTICAL WINDOW SPECIFICATIONS

Material: BK7 Glass & UV Grade Fused Silica
Diameter (Dia = Ø) Tolerance: ±0.25mm
Thickness Tolerance: ±0.25mm
Surface Figure: LQ = L/10 @ 633 nm nominal
AQ = ~3-5 waves@ 633 nm nominal
Surface Finish:LQ = 10-5 both surfaces
AQ = 60-40 both surfaces
Clear aperture: central 85%
Parallelism:LQ = < 5 arc minutes
AQ = < 15 arc minutes
Chamfer: ~ 0.30mm @45 deg.

(LQ = Laser Quality / AQ = Analytical Quality)

All dimensions in mm

DIA Ø	THICK (T)	QUALITY	MATERIAL	PRODUCT #	PRICE	ORDER
38.1	3.2	Laser Quality Window	BK7	LQB3832OW	$195.00	LQB3832OW
38.1	3.2	Analytical Quality Window	BK7	AQB3832OW	$55.00	AQB3832OW
38.1	3.2	Laser Quality Window	Fused Silica	LQF3832OW	$220.00	LQF3832OW
38.1	3.2	Analytical Quality Window	Fused Silica	AQF3832OW	$70.00	AQF3832OW
38.1	6.4	Laser Quality Window	BK7	LQB3864OW	$195.00	LQB3864OW
38.1	6.4	Analytical Quality Window	BK7	AQB3864OW	$55.00	AQB3864OW
38.1	6.4	Laser Quality Window	Fused Silica	LQF3864OW	$220.00	LQF3864OW
38.1	6.4	Analytical Quality Window	Fused Silica	AQF3864OW	$100.00	AQF3864OW
38.1	9.5	Laser Quality Window	BK7	LQB3895OW	$195.00	LQB3895OW
38.1	9.5	Analytical Quality Window	BK7	AQB3895OW	$55.00	AQB3895OW
38.1	9.5	Laser Quality Window	Fused Silica	LQF3895OW	$220.00	LQF3895OW
38.1	9.5	Analytical Quality Window	Fused Silica	AQF3895OW	$110.00	AQF3895OW
50.8	3.2	Laser Quality Window	BK7	LQB5032OW	$225.00	LQB5032OW
50.8	3.2	Analytical Quality Window	BK7	AQB5032OW	$60.00	AQB5032OW
50.8	3.2	Laser Quality Window	Fused Silica	LQF5032OW	$265.00	LQF5032OW
50.8	3.2	Analytical Quality Window	Fused Silica	AQF5032OW	$105.00	AQF5032OW
50.8	6.4	Laser Quality Window	BK7	LQB5064OW	$225.00	LQB5064OW
50.8	6.4	Analytical Quality Window	BK7	AQB5064OW	$60.00	AQB5064OW
50.8	6.4	Laser Quality Window	Fused Silica	LQF5064OW	$265.00	LQF5064OW
50.8	6.4	Analytical Quality Window	Fused Silica	AQF5064OW	$120.00	AQF5064OW
50.8	9.5	Laser Quality Window	BK7	LQB5095OW	$225.00	LQB5095OW
50.8	9.5	Analytical Quality Window	BK7	AQB5095OW	$70.00	AQB5095OW
50.8	9.5	Laser Quality Window	Fused Silica	LQF5095OW	$265.00	LQF5095OW
50.8	9.5	Analytical Quality Window	Fused Silica	AQF5095OW	$135.00	AQF5095OW
50.8	12.7	Laser Quality Window	BK7	LQB5013OW	$225.00	LQB5013OW
50.8	12.7	Analytical Quality Window	BK7	AQB5013OW	$80.00	AQB5013OW
50.8	12.7	Laser Quality Window	Fused Silica	LQF5013OW	$265.00	LQF5013OW
50.8	12.7	Analytical Quality Window	Fused Silica	AQF5013OW	$155.00	AQF5013OW
76.2	9.5	Laser Quality Window	BK7	LQB7695OW	$425.00	LQB7695OW
76.2	9.5	Analytical Quality Window	BK7	AQB7695OW	$95.00	AQB7695OW
76.2	9.5	Laser Quality Window	Fused Silica	LQF7695OW	$575.00	LQF7695OW
76.2	9.5	Analytical Quality Window	Fused Silica	AQF7695OW	$235.00	AQF7695OW
76.2	12.7	Laser Quality Window	BK7	LQB7613OW	$425.00	LQB7613OW
76.2	12.7	Analytical Quality Window	BK7	AQB7613OW	$100.00	AQB7613OW
76.2	12.7	Laser Quality Window	Fused Silica	LQF7613OW	$575.00	LQF7613OW
76.2	12.7	Analytical Quality Window	Fused Silica	AQF7613OW	$285.00	AQF7613OW
101.6	9.5	Laser Quality Window	BK7	LQB10195OW	$610.00	LQB10195OW
101.6	9.5	Analytical Quality Window	BK7	AQB10195OW	$120.00	AQB10195OW
101.6	9.5	Laser Quality Window	Fused Silica	LQF101950W	$695.00	LQF101950W
101.6	9.5	Analytical Quality Window	Fused Silica	AQF10195OW	$370.00	AQF10195OW
101.6	12.7	Laser Quality Window	BK7	LQB10113OW	$610.00	LQB10113OW
101.6	12.7	Analytical Quality Window	BK7	AQB10113OW	$150.00	AQB10113OW
101.6	12.7	Laser Quality Window	Fused Silica	LQF10113OW	$695.00	LQF10113OW
101.6	12.7	Analytical Quality Window	Fused Silica	AQF10113OW	$435.00	AQF10113OW

<<<< Back

· Larger standard "AQ" Window sizes such as 101.6mm, 127.0mm & 152.4mm Diameter are available by Request

· Add a Laser Quality AR Coating to any "LQ" Product # Window above

· AR Coatings for all Analytical Quality "AQ" Product # Windows are

available ONLY by special Request

· Also see our Square Optical Windows with additional UV Fused Silica & BK7 Glass Material Properties

eSource Optics other Window & Lens materials include the following:

Back to Products

             VUV-UV Optical Filters & Mirrors/Windows/Lenses/Prisms/Optics Cases & Boxes