# 400-1100nm Ar Coated Fused Silica Quartz Glass Laser Protective Window Lens for Laser Machine

> 400-1100nm Ar Coated Fused Silica Quartz Glass Laser Protective Window Lens for Laser Machine — a laser protective window: Optical Glass, 2-3.2mm or…

- Page: https://machiningglass.com/products/400-1100nm-ar-coated-fused-silica-quartz-glass-laser-protective-window-lens-for-laser-machine/
- SKU: MG-0DA5D4
- Category: AR & Optical Windows > Laser Protective Windows & Shields
- Image: https://machiningglass.com/wp-content/uploads/2026/10/400-1100nm-Ar-Coated-Fused-Silica-Quartz-Glass-Laser-Protective-Window-Lens-for-Laser-Machine.webp
- Updated: 2026-10-24

Product type: Optical Windows. Application: Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging, Detection, etc. Model: OW-0074.

## Overview

The 400-1100nm Ar Coated Fused Silica Quartz Glass Laser Protective Window Lens for Laser Machine is supplied as a laser protective window in Optical Glass (Sappire substrate). Listed geometry: thickness 2-3.2mm or Custom Manufacturing, single-lens shape. Optical / electrical data: wavelength 150-5000nm, transmittance >95%. Supplied uncoated; surface quality 40-20 Scratch-Dig or Custom Manufacturing. It is used in Lighting, Medical, Optical, Photography and Laser. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.

## Specifications

| Parameter | Value |
| --- | --- |
| Material | Optical Glass |
| Substrate | Sappire |
| Type | Optical Windows |
| Shape | Single-lens |
| Thickness | 2-3.2mm or Custom Manufacturing |
| Wavelength Range | 150-5000nm |
| Transmittance | >95% |
| Coating | Uncoating |
| Surface Quality | 40-20 Scratch-Dig or Custom Manufacturing |
| Usage | Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging, Detection, etc |
| Model NO. | OW-0074 |
| Lenses Color | Clear |
| Main Characteristics | Sapphire, Sapphire windows,Sapphire materials, Sapphire optical materials |
| Supplier | C-Laser (Taicang) Material Technology Co., Ltd. |

## Technical data

|   |   |   |
| --- | --- | --- |
| Items | Value | Value |
| Tensile strength | 40,000 - 60,000 psi (design criterion) | 0.27 - 0.41 GPa |
| Flexural strength | 70,000 -130,000 psi (design criterion) | 0.48 - 0.89 GPa |
| Young's Modulus, E (25 °C)(Modulus of Elasticity) | 50 x 106 psi | 345 GPa |
| Compressive Modulus, K | 55 x 106 psi | 379 GPa |
| Flexural Modulus (Modulus of Rupture) | 52 x 106 psi | 358 GPa |
| Shear Modulus, G (Modulus of Rigidity) | 21.5 x 106 psi | 148 GPa |
| Bulk Modulus, k (Volumetric Modulus of Elasticity) Poisson's Ratio | 35 x 106 psi0.29 | 241 GPa |

## What to specify when you request a quote

- **Material and grade** — listed as “Optical Glass”; name the glass or crystal grade (for example JGS1, N-BK7, Borofloat 33, sapphire) because it fixes the transmission band and thermal limits.
- **Diameter or outline** — give the nominal size and the tolerance you can accept.
- **Thickness** — listed as “2-3.2mm or Custom Manufacturing”; state nominal thickness and tolerance; thinner windows need tighter flatness control.
- **Surface quality and flatness** — listed as “40-20 Scratch-Dig or Custom Manufacturing”; quote scratch-dig and flatness over the clear aperture, not the whole part.
- **Coating** — listed as “Uncoating”; list the wavelength band and the maximum reflectance per surface for any AR coating.
- **Clear aperture and edges** — define the usable aperture and the edge chamfer.

## Engineering guides for this part

For material grades and coating options, see [Fused Silica and Other Glass Materials for Machined Components](https://machiningglass.com/materials/fused-silica-and-other-glass-materials-for-machined-components/). How parts like this are machined and finished is covered in [Precision AR Coating Process for Optical Glass Windows](https://machiningglass.com/capabilities/precision-ar-coating-process-for-optical-glass-windows/). For an application example, read [Boost Yield with Fused Silica Viewports for Vacuum and Optical Systems](https://machiningglass.com/applications/boost-yield-with-fused-silica-viewports-for-vacuum-and-optical-systems/). Before sending a drawing, check [Fused Silica Refractive Index: Key to Optical Design Improvement](https://machiningglass.com/resources/fused-silica-refractive-index-key-to-optical-design-improvement/). A related standard product is [AR-Coated High-Transparency Optical Glass](https://machiningglass.com/products/ar-coated-high-transparency-optical-glass/).

## FAQ

### What is the 400-1100nm Ar Coated Fused Silica Quartz Glass Laser Protective Window Lens for Laser Machine made of?

It is listed as Optical Glass with a Sappire substrate. Coating: Uncoating. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.

### What sizes and thicknesses are available?

The listing gives thickness 2-3.2mm or Custom Manufacturing. Custom outlines and thicknesses are made to drawing; state the tolerance you need.

### What optical or electrical performance does it have?

Listed values: wavelength 150-5000nm, transmittance >95%. Confirm the values at your operating wavelength, angle and temperature when you request a quote.

### Where is this laser protective window used?

Listed applications: Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging and Detection.

### What should I include in a quote request?

Include material and grade, diameter or outline, thickness, surface quality and flatness and coating, plus quantity and a drawing if the part is custom.

## Request a quote

Send drawings, tolerances and quantity: https://machiningglass.com/contact/?rfq_product_id=5025#mg-rfq

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Source: Custom Precision Glass Machining — https://machiningglass.com/