K9 Rectangular Windows

K9 Windows（rectangular）

The K9 rectangular windows sheet has characteristics such as high transmittance, high hardness, and high stability, and its shape is rectangular. The protective window used as an electronic sensor or detector for external environments can separate the environment on both sides, isolating the internal and external components of the instrument, thereby protecting the internal components. K9 rectangular optical glass has high transmittance and low impurity content, which can ensure that the magnification of the system will not change. Applied to flat windows, lenses, prisms, etc. UM OPTICS can provide different types of window sheets such as circular, rectangular, wedge-shaped, perforated, and stepped sheets.

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All products are provided with invoices, with a tax point of 13.

The product undergoes multiple inspections before being stored, and the quality is guaranteed. Please use it with confidence.

Spot products, shipped within 48 hours. For non stock or customized products, please consult.

International order logistics include DHL, FedEx, TNT, and EMS

When receiving the product, please ensure the integrity of the product packaging box first. If there is serious damage to the appearance, please refuse and contact us, and we will handle it for you as soon as possible.

Optical products are special items and cannot be returned or exchanged unless there is a quality issue with the product itself

If you need customization or bulk production, please contact us online and we will offer you a discounted price.

	Length(mm)	Width(mm)	ThK(mm)	Surface Accuracy	Surface Quality	Parallelism	Bevel(mm)
	Screen Reset 75 50.8 50 35 30 25.4 25 20 12.5 10	Screen Reset 75 50.8 25.4 50 35 20 25 15 12.5 5	Screen Reset 4 6.3 2 3	Screen Reset 5(3) 3(1)	Screen Reset 60-40	Screen Reset 3′	Screen Reset 0.35
More+ Less	75	75	4	5(3)	60-40	3′	0.35
Sizes 75mm75mm4mm，K9 Rectangular Windows Number：PG202H001 Length(mm)：75 Width(mm)：75 ThK(mm)：4 Surface Accuracy：5(3) Surface Quality：60-40 Parallelism：3′ Clear Aperture：>90% Length Tolerance(mm)：+0.0/-0.1 Width Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：K9 Transmission Range：0.38-2.1μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	50.8	50.8	6.3	5(3)	60-40	3′	0.35
Sizes 50.8mm50.8mm6.3mm，K9 Rectangular Windows Number：PG202F006 Length(mm)：50.8 Width(mm)：50.8 ThK(mm)：6.3 Surface Accuracy：5(3) Surface Quality：60-40 Parallelism：3′ Clear Aperture：>90% Length Tolerance(mm)：+0.0/-0.1 Width Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：K9 Transmission Range：0.38-2.1μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	50.8	50.8	2	5(3)	60-40	3′	0.35
Sizes 50.8mm50.8mm2mm，K9 Rectangular Windows Number：PG202F005 Length(mm)：50.8 Width(mm)：50.8 ThK(mm)：2 Surface Accuracy：5(3) Surface Quality：60-40 Parallelism：3′ Clear Aperture：>90% Length Tolerance(mm)：+0.0/-0.1 Width Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：K9 Transmission Range：0.38-2.1μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	50.8	25.4	2	5(3)	60-40	3′	0.35
Sizes 50.8mm25.4mm2mm，K9 Rectangular Windows Number：PG202F003 Length(mm)：50.8 Width(mm)：25.4 ThK(mm)：2 Surface Accuracy：5(3) Surface Quality：60-40 Parallelism：3′ Clear Aperture：>90% Length Tolerance(mm)：+0.0/-0.1 Width Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：K9 Transmission Range：0.38-2.1μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	50	50	4	5(3)	60-40	3′	0.35
Sizes 50mm50mm4mm，K9 Rectangular Windows Number：PG202F002 Length(mm)：50 Width(mm)：50 ThK(mm)：4 Surface Accuracy：5(3) Surface Quality：60-40 Parallelism：3′ Clear Aperture：>90% Length Tolerance(mm)：+0.0/-0.1 Width Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：K9 Transmission Range：0.38-2.1μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	35	35	3	3(1)	60-40	3′	0.35
Sizes 35mm35mm3mm，K9 Rectangular Windows Number：PG202F001 Length(mm)：35 Width(mm)：35 ThK(mm)：3 Surface Accuracy：3(1) Surface Quality：60-40 Parallelism：3′ Clear Aperture：>90% Length Tolerance(mm)：+0.0/-0.1 Width Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：K9 Transmission Range：0.38-2.1μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	30	20	2	3(1)	60-40	3′	0.35
Sizes 30mm20mm2mm，K9 Rectangular Windows Number：PG202E006 Length(mm)：30 Width(mm)：20 ThK(mm)：2 Surface Accuracy：3(1) Surface Quality：60-40 Parallelism：3′ Clear Aperture：>90% Length Tolerance(mm)：+0.0/-0.1 Width Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：K9 Transmission Range：0.38-2.1μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	25.4	25.4	2	3(1)	60-40	3′	0.35
Sizes 25.4mm25.4mm2mm，K9 Rectangular Windows Number：PG202E003 Length(mm)：25.4 Width(mm)：25.4 ThK(mm)：2 Surface Accuracy：3(1) Surface Quality：60-40 Parallelism：3′ Clear Aperture：>90% Length Tolerance(mm)：+0.0/-0.1 Width Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：K9 Transmission Range：0.38-2.1μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	25	25	4	3(1)	60-40	3′	0.35
Sizes 25mm25mm4mm，K9 Rectangular Windows Number：PG202E001 Length(mm)：25 Width(mm)：25 ThK(mm)：4 Surface Accuracy：3(1) Surface Quality：60-40 Parallelism：3′ Clear Aperture：>90% Length Tolerance(mm)：+0.0/-0.1 Width Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：K9 Transmission Range：0.38-2.1μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	20	15	2	3(1)	60-40	3′	0.35
Sizes 20mm15mm2mm，K9 Rectangular Windows Number：PG202D001 Length(mm)：20 Width(mm)：15 ThK(mm)：2 Surface Accuracy：3(1) Surface Quality：60-40 Parallelism：3′ Clear Aperture：>90% Length Tolerance(mm)：+0.0/-0.1 Width Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：K9 Transmission Range：0.38-2.1μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant

Material Data
Optical Properties
Transmission Range	0.35-2μm
Refractive index	1.5168@587.5618nm 3×10-2@10.6μm
Reflection loss	8.1%@587.5618nm(both sides)
Physical Properties
Density [g/cm3]	2.51
Melting Point [℃]	559
Thermal Conductivity [W/(m•deg C)]	1.114
Thermal Expansion [deg C-1 for -30/+70 deg C]	7.1*10-6
Specific Heat Capacity [J/(kg•deg C)]	0.858*103
Young's Modulus (E) [GPa]	82
Bulk Modulus(K) [GPa]	34
Poisson Coefficient	0.206
Chemical Properties
Solubility / g/L	None

K9 Windows（rectangular）

Technical Parameter

Material Data

Transmittance

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