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Germanium (Ge) Windows

Germanium Windows & Plates – Uncoated & AR/AR – AR DLC Coated

Germanium Windows with excellent transmission across 2-14 µm waveband and can be used in both mid-wave infrared (IR) and long wave IR systems. Germanium is a widely used material for IR windows and lenses in thermal imaging systems.

This high density window has a thermal escape which makes the transmission reduce as the temperature of the window increases. Germanium Windows are commonly used in industrial/domestic CCTV cameras and aerospace industries, life and medical sciences, industrial OEM and many other infrared applications.

UQG Optics stock 3 types of Germanium windows, uncoated, AR both sides coated and AR/DLC coated in a range of sizes. Our custom range involves an option of squares/rectangles, materal, shapes and much more.

Please contact our sales team or view all our IR Windows.

View RoHS Statement

Dimensions:	Monocrystalline diameters 5mm to 300mm
	Polycrystalline diameters 5mm to 380mm
	Squares/Rectangles up to 200mm x 200mm
Thickness:	0.50mm to 20mm (subject to Dimension)
Surface Flatness:	Up to lambda 4 (@633nm)
Material Options:	Polycrystalline
Coating Options:	AR coatings 3-14 microns
	DLC-Diamond coatings
Options;	Bevels, holes, wedges & shapes

Purchase OEM production quantities?
Ask UQG for a quote we are a major single source supply chain global supplier.

Material:

Germanium-Optical Grade-Monocrystalline

(N-Type, 5-40 ohm cm resistivity)

Diameter Tolerance:

+.00/-0.10mm

Thickness Tolerance:

± 0.10mm

Edge Finish:

Fine ground

Surface Quality:

60/40 Scratch/Dig

Surface Flatness:

≤ 5 Fringes (@633nm)

Parallelism:

≤ 3 Arc mins

Purity:

>99.9999%

Orientation:

<111>

Transmission Range:

IR 7-14 microns

Coating Specification:

AR/DLC

AR coated one side 7-14

Microns is a blue/pink/purple colour

2nd side DLC is black/dark grey colour

(hard diamond like carbon coating) Tavg > 80%

AR/AR

7-14 Microns Tavg > 85%

Please contact us for discount pricing for stock parts over 10+ and volume/OEM quantities.

Part numbers listed with enquire, please contact us for prices & delivery times.

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Part No	Data sheet	Description	Dimensions (mm)	Thickness (mm)	Unit price (1-10) excl. VAT	Qty	Qty (10+)Volume pricing available for 10+, please add to quote.
GOW-081	PDF	Germanium Windows (uncoated)	Ø 8	1	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GOW-101	PDF	Germanium Windows (uncoated)	Ø10	1	£15.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-102	PDF	Germanium Windows (uncoated)	Ø 10	2	£17.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-151	PDF	Germanium Windows (uncoated)	Ø 15	1	£17.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-201	PDF	Germanium Windows (uncoated)	Ø 20	1	£29.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-251	PDF	Germanium Windows (uncoated)	Ø 25	1	£45.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-252	PDF	Germanium Windows (uncoated)	Ø 25	2	£45.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-253	PDF	Germanium Windows (uncoated)	Ø 25	3	£62.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-254	PDF	Germanium Windows (uncoated)	Ø 25.4	1	£46.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-404	PDF	Germanium Windows (uncoated)	Ø 40	4	£200.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-503	PDF	Germanium Windows (uncoated)	Ø 50	3	£232.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GEW-101	PDF	Ge Window AR+AR 7-14 microns	Ø 10	1	£55.00	QTY Ge Window AR+AR 7-14 microns quantity	Added to Quote
GEW-102	PDF	Ge Window AR+AR 7-14 microns	Ø 10	2	£60.00	QTY Ge Window AR+AR 7-14 microns quantity	Added to Quote
GEW-125	PDF	Ge Window AR+AR 7-14 microns	Ø 12.50	1	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GEW-151	PDF	Ge Window AR+AR 7-14 microns	Ø 15	1	£89.00	QTY Ge Window AR+AR 7-14 microns quantity	Added to Quote
GEW-202	PDF	Ge Window AR+AR 7-14 microns	Ø 20	2	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GEW-251	PDF	Ge Window AR+AR 7-14 microns	Ø 25	1	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GEW-252	PDF	Ge Window AR+AR 7-14 microns	Ø 25	2	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GEW-235	PDF	Ge Window AR+AR 7-14 microns	Ø 25	3	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GEW-403	PDF	Ge Window AR+ AR 7-14 microns	Ø 40	3	£220.00	QTY Ge Window AR+ AR 7-14 microns quantity	Added to Quote
GEW-404	PDF	Ge Window AR+ AR 7-14 microns	Ø 40	4	£225.00	QTY Ge Window AR+ AR 7-14 microns quantity	Added to Quote
GEW-502	PDF	Ge Window AR+AR 7-14 microns	Ø 50	2	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GEW-503	PDF	Ge Window AR+AR 7-14 microns Delivery 7 Weeks	Ø 50	3	£420.00	QTY Ge Window AR+AR 7-14 microns Delivery 7 Weeks quantity	Added to Quote
GCW-101		Ge Windows AR/DLC 7-14 microns	Ø 10	1	£50.00	QTY Ge Windows AR/DLC 7-14 microns quantity	Added to Quote
GCW-102	PDF	Ge Windows AR/DLC 7-14 microns	Ø 10	2	£55.00	QTY Ge Windows AR/DLC 7-14 microns quantity	Added to Quote
GCW-251	PDF	Ge Windows AR/DLC 7-14 microns	Ø 25	1	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GCW-252	PDF	Ge Windows AR/DLC 7-14 microns	Ø 25	2	£140.00	QTY Ge Windows AR/DLC 7-14 microns quantity	Added to Quote
GCW-253	PDF	Ge Windows AR/DLC 7-14 microns	Ø 25	3	£110.00	QTY Ge Windows AR/DLC 7-14 microns quantity	Added to Quote
GCW-403	PDF	Ge Windows AR/DLC 7-14 microns	Ø 40	3	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GCW-503	PDF	Ge Windows AR/DLC 7-14 microns Delivery 7 Weeks	Ø 50	3	£420.00	QTY Ge Windows AR/DLC 7-14 microns Delivery 7 Weeks quantity	Added to Quote
GCW-5010	PDF	Ge Windows AR/DLC 7-14 microns	Ø 50	10.2	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GCW-753	PDF	Ge Windows AR/DLC 7-14 microns	Ø 75	3	£850.00	QTY Ge Windows AR/DLC 7-14 microns quantity	Added to Quote
GEP-551	PDF	Ge Plates AR+AR 7-14 microns	5 x 5	1	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GCP-551		Ge Plates AR/DLC 7-14 microns	5 x 5	1	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GCP-3034	PDF	Ge Window AR/DLC 7-14 microns	30 x 30	4.5	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote

Part Number

GOW-081

Germanium Windows (uncoated)

PDF Data sheet

Dimensions (mm) Ø 8

Thickness (mm) 1

Part Enquiry

Part Number

GOW-101

Germanium Windows (uncoated)

PDF Data sheet

Dimensions (mm) Ø10

Thickness (mm) 1

UNIT PRICE (1-10)

£15.00 Inc. VAT

Part Number

GOW-102

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 10

UNIT PRICE (1-10)

£17.00 Inc. VAT

Part Number

GOW-151

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 15

UNIT PRICE (1-10)

£17.00 Inc. VAT

Part Number

GOW-201

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 20

UNIT PRICE (1-10)

£29.00 Inc. VAT

Part Number

GOW-251

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 25

UNIT PRICE (1-10)

£45.00 Inc. VAT

Part Number

GOW-252

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 25

UNIT PRICE (1-10)

£45.00 Inc. VAT

Part Number

GOW-253

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 25

UNIT PRICE (1-10)

£62.00 Inc. VAT

Part Number

GOW-254

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 25.4

UNIT PRICE (1-10)

£46.00 Inc. VAT

Part Number

GOW-404

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 4

Dimensions (mm) Ø 40

UNIT PRICE (1-10)

£200.00 Inc. VAT

Part Number

GOW-503

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 50

UNIT PRICE (1-10)

£232.00 Inc. VAT

Part Number

GEW-101

Ge Window AR+AR 7-14 microns

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 10

UNIT PRICE (1-10)

£55.00 Inc. VAT

Part Number

GEW-102

Ge Window AR+AR 7-14 microns

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 10

UNIT PRICE (1-10)

£60.00 Inc. VAT

Part Number

GEW-125

Ge Window AR+AR 7-14 microns

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 12.50

Part Enquiry

Part Number

GEW-151

Ge Window AR+AR 7-14 microns

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 15

UNIT PRICE (1-10)

£89.00 Inc. VAT

Part Number

GEW-202

Ge Window AR+AR 7-14 microns

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 20

Part Enquiry

Part Number

GEW-251

Ge Window AR+AR 7-14 microns

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 25

Part Enquiry

Part Number

GEW-252

Ge Window AR+AR 7-14 microns

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 25

Part Enquiry

Part Number

GEW-235

Ge Window AR+AR 7-14 microns

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 25

Part Enquiry

Part Number

GEW-403

Ge Window AR+ AR 7-14 microns

PDF Data sheet

Dimensions (mm) Ø 40

Thickness (mm) 3

UNIT PRICE (1-10)

£220.00 Inc. VAT

Part Number

GEW-404

Ge Window AR+ AR 7-14 microns

PDF Data sheet

Thickness (mm) 4

Dimensions (mm) Ø 40

UNIT PRICE (1-10)

£225.00 Inc. VAT

Part Number

GEW-502

Ge Window AR+AR 7-14 microns

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 50

Part Enquiry

Part Number

GEW-503

Ge Window AR+AR 7-14 microns Delivery 7 Weeks

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 50

UNIT PRICE (1-10)

£420.00 Inc. VAT

Part Number

GCW-101

Ge Windows AR/DLC 7-14 microns

Thickness (mm) 1

Dimensions (mm) Ø 10

UNIT PRICE (1-10)

£50.00 Inc. VAT

Part Number

GCW-102

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 10

UNIT PRICE (1-10)

£55.00 Inc. VAT

Part Number

GCW-251

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 25

Part Enquiry

Part Number

GCW-252

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 25

UNIT PRICE (1-10)

£140.00 Inc. VAT

Part Number

GCW-253

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 25

UNIT PRICE (1-10)

£110.00 Inc. VAT

Part Number

GCW-403

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 40

Part Enquiry

Part Number

GCW-503

Ge Windows AR/DLC 7-14 microns Delivery 7 Weeks

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 50

UNIT PRICE (1-10)

£420.00 Inc. VAT

Part Number

GCW-5010

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 10.2

Dimensions (mm) Ø 50

Part Enquiry

Part Number

GCW-753

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 75

UNIT PRICE (1-10)

£850.00 Inc. VAT

Part Number

GEP-551

Ge Plates AR+AR 7-14 microns

PDF Data sheet

Dimensions (mm) 5 x 5

Thickness (mm) 1

Part Enquiry

Part Number

GCP-551

Ge Plates AR/DLC 7-14 microns

Dimensions (mm) 5 x 5

Thickness (mm) 1

Part Enquiry

Part Number

GCP-3034

Ge Window AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 4.5

Dimensions (mm) 30 x 30

Part Enquiry

Germanium (Ge) Windows

Germanium Windows & Plates – Uncoated & AR/AR – AR DLC Coated

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