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lambda/4 Flat Windows

High-Precision ZnSe Window for Infrared Optics
Sinoptix
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High-Precision ZnSe Window for Infrared Optics
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The High-Precision ZnSe (Zinc Selenide) Window is specifically designed for advanced infrared (IR) optical applications, offering superior transmission across the infrared spectrum. ZnSe is a highly transparent material in the IR region, making it an ideal choice for IR laser systems, thermal imaging, and spectroscopy. With a low ...

Specifications
Substrate Material: ZnSe
Antireflection Coating: Uncoated
Diameter: 300 mm
Surface Quality: 20-10 scratch-dig
Surface Flatness: lambda/10, lambda/8, lambda/6, lambda/4, lambda/2, 1 lambda
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High-Precision MgF₂ Window for UV and IR Optics
Sinoptix
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High-Precision MgF₂ Window for UV and IR Optics
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The High-Precision MgF₂ (Magnesium Fluoride) Window is an essential optical component designed for both UV and infrared (IR) applications. With exceptional transmission properties across a wide spectral range, from ultraviolet (UV) to infrared (IR), this window is ideal for use in spectroscopic instruments, laser systems, and ...

Specifications
Substrate Material: MgF2
Antireflection Coating: Coated, Uncoated
Diameter: 160 mm
Surface Quality: 10-5 scratch-dig, 20-10 scratch-dig
Surface Flatness: lambda/10, lambda/8, lambda/6, lambda/4, lambda/2, 1 lambda
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High-Precision BaF₂ Window for Infrared Optics
Sinoptix
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High-Precision BaF₂ Window for Infrared Optics
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The High-Precision BaF₂ (Barium Fluoride) Window is an essential optical component designed for infrared (IR) optical applications. Known for its excellent transmission across a wide IR wavelength range, this window is ideal for use in spectroscopic instruments, thermal imaging systems, and high-performance IR lasers. The BaF₂ ...

Specifications
Substrate Material: BaF2
Antireflection Coating: Coated
Diameter: 200 mm
Surface Quality: 10-5 scratch-dig, 20-10 scratch-dig
Surface Flatness: lambda/10, lambda/8, lambda/6, lambda/4, lambda/2, 1 lambda
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High-Precision CaF₂ Window for UV and Broadband Optics
Sinoptix
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High-Precision CaF₂ Window for UV and Broadband Optics
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The High-Precision CaF₂ (Calcium Fluoride) Window is a superior optical component designed for UV and broadband optical applications. Manufactured from high-quality CaF₂ material, these windows are highly transparent across a wide range of wavelengths, from ultraviolet (UV) to infrared (IR), making them ideal for demanding optical ...

Specifications
Substrate Material: CaF2
Antireflection Coating: Coated
Diameter: 320 mm
Surface Quality: 20-10 scratch-dig, 40-20 scratch-dig, 60-40 scratch-dig
Surface Flatness: lambda/10, lambda/8, lambda/6, lambda/4, lambda/2, 1 lambda
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High-Quality Silicon Wafer for Semiconductor and Photonics Applications
Sinoptix
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High-Quality Silicon Wafer for Semiconductor and Photonics Applications
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The High-Quality Silicon Wafer is engineered to meet the demanding requirements of the semiconductor and photonics industries. Available in a wide range of sizes and configurations, these wafers are made from CZ (Czochralski) or FZ (Float Zone) silicon, providing exceptional purity and crystal structure. With diameters ranging from ...

Specifications
Substrate Material: Si
Antireflection Coating: Uncoated
Diameter: 304.8 mm
Surface Quality: 20-10 scratch-dig, 40-20 scratch-dig
Surface Flatness: lambda/4
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Sapphire Wafer for Semiconductor and Photonics Applications
Sinoptix
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Sapphire Wafer for Semiconductor and Photonics Applications
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The Sapphire Wafer is an advanced optical component designed specifically for the semiconductor and photonics industries. Manufactured from 99.999% pure AL₂O₃ monocrystalline sapphire, it offers unparalleled durability and performance. With customizable dimensions ranging from 1 inch (25.4 mm) to 8 inches (203.2 mm) and thickness ...

Specifications
Substrate Material: Sapphire
Antireflection Coating: Uncoated
Diameter: 203.2 mm
Surface Quality: 60-40 scratch-dig
Surface Flatness: lambda/4
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Silicon Optical Window for Infrared Applications
Sinoptix
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Silicon Optical Window for Infrared Applications
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The Silicon Optical Window is engineered for high-performance applications in infrared optics. Constructed from premium optical-grade silicon, this window boasts a standard diameter of 108mm, with the flexibility to customize dimensions to meet specific project needs. The BBAR (Broadband Anti-Reflective) coating significantly ...

Specifications
Substrate Material: Si
Antireflection Coating: Coated
Diameter: 100 mm
Surface Quality: 20-10 scratch-dig
Surface Flatness: lambda/4
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Optical Fused Silica Quartz Glass Laser Protective Window
Henan UM Optics Ltd
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Optical Fused Silica Quartz Glass Laser Protective Window
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Quartz windows are optical glass that have been ground and polished to form two surfaces parallel to each other. They are commonly used as protective devices for electronic sensors, optical lenses, and laser devices. With high transmittance, good heat resistance, and excellent environmental durability, fused silica windows are well ...

Specifications
Substrate Material: Fused Silica, UV Grade Fused Silica, IR Grade Fused Silica, Sapphire
Antireflection Coating: N/A
Diameter: 6-100 mm
Surface Quality: 10-5 scratch-dig, 20-10 scratch-dig, 40-20 scratch-dig, 60-40 scratch-dig, 80-50 scratch-dig
Surface Flatness: lambda/20, lambda/10, lambda/8, lambda/6, lambda/4, lambda/2, 1 lambda, Lambda/40
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Sapphire Glass Window for Electronic Sensors
Henan UM Optics Ltd
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Sapphire Glass Window for Electronic Sensors
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Sapphire window is one of the basic optical components in optics, usually used as a protective window for electronic sensors or external environment detectors. It is used to separate the environment on both sides, such as separating the inside and outside of the instrument, so that the inside and outside of the instrument are ...

Specifications
Substrate Material: N-BK7, Fused Silica, UV Grade Fused Silica, IR Grade Fused Silica, Sapphire, Ge, ZnSe, ZnS, CaF2, IR Grade CaF2, MgF2, BaF2, Si
Antireflection Coating: Coated
Diameter: 6-100 mm
Surface Quality: 10-5 scratch-dig, 20-10 scratch-dig, 40-20 scratch-dig, 60-40 scratch-dig, 80-50 scratch-dig
Surface Flatness: lambda/20, lambda/10, lambda/8, lambda/6, lambda/4, lambda/2, 1 lambda, Lambda/40
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CaF2 Calcium Fluoride Protective Window
Henan UM Optics Ltd
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CaF2 Calcium Fluoride Protective Window
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Windows are optical glass that have been ground and polished to form two surfaces parallel to each other. They are commonly used as protective devices for electronic sensors, optical lenses, and laser devices. Windows do not change the magnification of the system. The window piece does not change the magnification of the system. ...

Specifications
Substrate Material: N-BK7, Fused Silica, UV Grade Fused Silica, IR Grade Fused Silica, Sapphire, Ge, ZnSe, ZnS, CaF2, IR Grade CaF2, MgF2, BaF2, Si
Antireflection Coating: N/A
Diameter: 6-100 mm
Surface Quality: 10-5 scratch-dig, 20-10 scratch-dig, 40-20 scratch-dig, 60-40 scratch-dig, 80-50 scratch-dig
Surface Flatness: lambda/20, lambda/10, lambda/8, lambda/6, lambda/4, lambda/2, 1 lambda, Lambda/40
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BK7 Optical Window with Large Incidence Angle Antireflection Coating
Fuzhou HCT Optics Co.,LTD
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BK7 Optical Window with Large Incidence Angle Antireflection Coating
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Optical windows are often used in optical instruments, such as telescopes, microscopes, lasers, spectrometers, etc. They act as windows in the optical path to protect the interior of the optical system from the external environment and allow light to enter or leave the system.

Specifications
Substrate Material: N-BK7
Antireflection Coating: Coated
Diameter: 15 mm
Surface Quality: 20-10 scratch-dig
Surface Flatness: lambda/4
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Optical Sapphire Window with AR Coating
MOK Optics Co LTD
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Optical Sapphire Window with AR Coating
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Sapphire (Al2O3) is a highly versatile material renowned for its exceptional properties. It possesses a high surface hardness, excellent temperature resistance, good thermal conductivity, and impressive UV-IR transmittance. Additionally, sapphire exhibits remarkable chemical stability. These characteristics make sapphire an ideal ...

Specifications
Substrate Material: Sapphire
Antireflection Coating: Coated
Diameter: 2-200 mm
Surface Quality: 10-5 scratch-dig, 20-10 scratch-dig, 40-20 scratch-dig, 60-40 scratch-dig, 80-50 scratch-dig
Surface Flatness: lambda/4, lambda/2, 1 lambda
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CaF2 BaF2 MgF2 BK7 Fused silica Ge Si ZnSe ZnS Protective Window
Henan UM Optics Ltd
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CaF2 BaF2 MgF2 BK7 Fused silica Ge Si ZnSe ZnS Protective Window
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Windows are optical glass that have been ground and polished to form two surfaces parallel to each other. They are commonly used as protective devices for electronic sensors, optical lenses, and laser devices. Windows do not change the magnification of the system. The window piece does not change the magnification of the system. ...

Specifications
Substrate Material: N-BK7, Fused Silica, UV Grade Fused Silica, IR Grade Fused Silica, Sapphire, Ge, ZnSe, ZnS, CaF2, IR Grade CaF2, MgF2, BaF2, Si
Antireflection Coating: N/A
Diameter: 6-100 mm
Surface Quality: 10-5 scratch-dig, 20-10 scratch-dig, 40-20 scratch-dig, 60-40 scratch-dig, 80-50 scratch-dig
Surface Flatness: lambda/20, lambda/10, lambda/8, lambda/6, lambda/4, lambda/2, 1 lambda, Lambda/40, Other
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Industrial Sapphire Windows
Sapphcom Sapphire Competence
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Industrial Sapphire Windows
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Sapphcom Sapphire Competence offers a wide range of industrial sapphire products and services. We specialize in offering sapphire optics products (windows, lenses, prisms) and customized parts and prototypes. We also offer consulting to help customers implement sapphire in their specific applications. 

Specifications
Substrate Material: Sapphire
Antireflection Coating: Coated, Uncoated
Diameter: up to 350 mm
Surface Quality: 10-5 scratch-dig, 20-10 scratch-dig, 40-20 scratch-dig, 60-40 scratch-dig, 80-50 scratch-dig
Surface Flatness: lambda/10, lambda/8, lambda/6, lambda/4, lambda/2, 1 lambda
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Custom High-Precision Polished Sapphire Optical Windows for Advanced Optical Applications
ARD-OPTICS
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Custom High-Precision Polished Sapphire Optical Windows for Advanced Optical Applications
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Experience cutting-edge performance with ARD-OPTICS High-Precision Optical Windows, made from top-quality sapphire and other glass materials. Our optical windows boast exceptional specifications, including surface quality up to S/D-10/5 according to MIL-PRF-13830B, surface flatness up to lambda/10 @632nm, and parallelism of polished ...

Specifications
Substrate Material: N-BK7, Fused Silica, UV Grade Fused Silica, IR Grade Fused Silica, Sapphire, MgF2, Other
Antireflection Coating: Uncoated
Diameter: 5-200 mm
Surface Quality: 20-10 scratch-dig, 40-20 scratch-dig, 60-40 scratch-dig, 80-50 scratch-dig
Surface Flatness: lambda/10, lambda/8, lambda/6, lambda/4, lambda/2, 1 lambda
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Glass Windows
Qinhuangdao Intrinsic Crystal Technology Co.Ltd
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Glass Windows
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ICC provide Si, Ge, ZnSe, CaF2, BaF2, MgF2, BK7, Quartz,Sapphire Windows and Lenses.Grow optical fluoride crystals:CaF2 BaF2 MgF2 LiF &SiliconProduce Optical components:Optical windows ,lens,prisms,etcOther working materials:Ge/ZnSe/ZnS/Quartz/Optical Glass,etc   Call Us via +86-1800331094  |  ...

Specifications
Substrate Material: N-BK7, Fused Silica, UV Grade Fused Silica, IR Grade Fused Silica, Sapphire, Ge, ZnSe, ZnS, CaF2, IR Grade CaF2, MgF2, BaF2, Si
Antireflection Coating: Uncoated
Diameter: Custom mm
Surface Quality: 10-5 scratch-dig, 20-10 scratch-dig, 40-20 scratch-dig, 60-40 scratch-dig, 80-50 scratch-dig
Surface Flatness: lambda/20, Lambda/40, 1 lambda, lambda/2, lambda/4, lambda/6, lambda/8, lambda/10
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Custom Size High Quality Zns Laser Protection Window with Coating
Qinhuangdao Intrinsic Crystal Technology Co.Ltd
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Custom Size High Quality Zns Laser Protection Window with Coating
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For windows,domes and lenses for thermal-imaging system.CVD ZnS, which appears orange, mainly works in Far-infrared regionMulti-spectrum ZnS (M-ZnS) shows excellent optical properties across the full band of 0.4-12μm, can be used in Far-, Mid-, Near-infrared and visible regions.CVD ZnS windows, lenses and domes with size up to ...

Specifications
Substrate Material: ZnS
Antireflection Coating: Coated, Uncoated
Diameter: 25.4 mm
Surface Quality: 40-20 scratch-dig, 60-40 scratch-dig, 80-50 scratch-dig
Surface Flatness: lambda/4, lambda/6, lambda/8, lambda/10
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Ge Mono Wafer Ge Window Germanium Windows Ge Lens
Qinhuangdao Intrinsic Crystal Technology Co.Ltd
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Ge Mono Wafer Ge Window Germanium Windows Ge Lens
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Germanium (Ge) is the preferred lens and window material for high performance infrared imaging systems in the 8-12 um wavelength band. Its high refractive index makes Ge ideal for low power imaging systems because of minimum surface curvature. Chromatic aberration is small, often eliminating the need for correction.Germanium is most ...

Specifications
Substrate Material: Ge
Antireflection Coating: Coated, Uncoated
Diameter: 3-300 mm
Surface Quality: 20-10 scratch-dig, 40-20 scratch-dig, 60-40 scratch-dig
Surface Flatness: lambda/2, lambda/4, lambda/6, lambda/8, lambda/10
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Sapphire (Al2O3) Windows-SZLaser
SZLASER
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Sapphire (Al2O3) Windows-SZLaser
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Sapphire windows provides exceptional surface hardness and a transmission range extending from the UV to the MIR. Each window has a randomly oriented crystal axis or specified orientation as request. Call Us via +86-755-8378 2881  |  Email us sales@szlaser.com |  www.szlaser.com

Specifications
Substrate Material: Sapphire
Antireflection Coating: Coated, Uncoated
Diameter: +0.0, -0.1mm mm
Surface Quality: 20-10 scratch-dig, 40-20 scratch-dig, 60-40 scratch-dig
Surface Flatness: Other, lambda/2, lambda/4
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Calcium fluoride (CaF₂) Windows/Lenses
SZLASER
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Calcium fluoride (CaF₂) Windows/Lenses
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Calcium fluoride (CaF₂) Windows provide high transmission from the ultraviolet (180 nm) to the infrared (8 μm).Calcium fluoride has a low absorption coefficient and high damage threshold, making these windows a good choice for use with free-space lasers. Optical calcium fluoride offers low dispersion (with an Abbe Number of 95) ...

Specifications
Substrate Material: CaF2, IR Grade CaF2
Antireflection Coating: Coated, Uncoated
Diameter: 2~50 mm
Surface Quality: 20-10 scratch-dig, 40-20 scratch-dig, 60-40 scratch-dig
Surface Flatness: Other, 1 lambda, lambda/2, lambda/4, lambda/6, lambda/8
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On FindLight marketplace you will find 33 different lambda/4 Flat Windows from suppliers around the world. With just a few clicks you can compare different lambda/4 Flat Windows and get accurate price quotes based on your needs and quantity required. Note that some wholesale suppliers may offer discounts for large quantities. From any product page you can directly contact any vendor within seconds.