# Anti-Reflective Optical Ar Coating K9 Bk7 Transparent Sapphire Glass Optical Lens Wedge Window

> Anti-Reflective Optical Ar Coating K9 Bk7 Transparent Sapphire Glass Optical Lens Wedge Window — an optical lens: Glass, Customized thick, 355-1064nm.…

- Page: https://machiningglass.com/products/anti-reflective-optical-ar-coating-k9-bk7-transparent-sapphire-glass-optical-lens-wedge-window/
- SKU: MG-5234B5
- Category: Optical Lenses, Prisms & Mirrors > Precision Optical Lenses
- Image: https://machiningglass.com/wp-content/uploads/2026/10/Anti-Reflective-Optical-Ar-Coating-K9-Bk7-Transparent-Sapphire-Glass-Optical-Lens-Wedge-Window.webp
- Updated: 2026-10-24

Product type: Optical Glass Window. Application: Optical and Photographic Instrument.

## Overview

Anti-Reflective Optical Ar Coating K9 Bk7 Transparent Sapphire Glass Optical Lens Wedge Window: an optical lens made from Glass. Listed geometry: thickness Customized. Optical / electrical data: wavelength 355-1064nm. It is used in Lighting, Medical, Optical and Photography. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.

## Specifications

| Parameter | Value |
| --- | --- |
| Material | Glass |
| Type | Optical Glass Window |
| Shape | Customized |
| Cwl | 355-1064nm |
| Usage | Lighting, Medical, Optical, Photography |
| Color | Transparent |
| Principle | Cut-off Filter |
| Angle of incidence | 45° |
| Name | Optical Window |
| Key | Optical Glass Window |
| Thickness Tolerance | ±0.1mm |
| Use | Optical and Photographic Instrument |
| Thickness Range | Customized |
| Supplier | Shanghai Jingsheng Optoelectronics Technology Co., Ltd |

## Technical data

| Parameter | Value |
| --- | --- |
| Name | Optical windows |
| Material | optical glass, UVF, Sapphire etc. |
| Diameter | 0.2-300mm |
| Thickness | 0.5-5mm |
| Dimension tolerance | +/-0.1mm or +/-0.02mm |
| Surface quality | 40/20 ~ 80/50 or Better |
| Clear aperture | >85%, >90% |
| Surface accuracy | λ/10 λ/2 |
| Bevel | 0.1~0.3mm x 45 degree |
| Coating | AR or Custom |

## What to specify when you request a quote

- **Material** — listed as “Glass”; name the glass or crystal.
- **Geometry** — listed as “45°”; give diameter, focal length or radii, angles and tolerances.
- **Surface figure** — quote surface figure (λ) and scratch-dig.
- **Centring and edges** — state centration and edge chamfer.
- **Coating** — list the band and reflectance or transmission target.

## Engineering guides for this part

For material grades and coating options, see [AR-Coated Glass Materials for High-Transmission Optical Parts](https://machiningglass.com/materials/ar-coated-glass-materials-for-high-transmission-optical-parts/). How parts like this are machined and finished is covered in [Flat Glass Polishing Process for Precision Substrates](https://machiningglass.com/capabilities/flat-glass-polishing-process-for-precision-substrates/). 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 Anti-Reflection Optical Window](https://machiningglass.com/products/ar-anti-reflection-optical-window/).

## FAQ

### What is the Anti-Reflective Optical Ar Coating K9 Bk7 Transparent Sapphire Glass Optical Lens Wedge Window made of?

It is listed as Glass. 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 Customized. Custom outlines and thicknesses are made to drawing; state the tolerance you need.

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

Listed values: wavelength 355-1064nm. Confirm the values at your operating wavelength, angle and temperature when you request a quote.

### Where is this optical lens used?

Listed applications: Lighting, Medical, Optical and Photography.

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

Include material, geometry, surface figure, centring and edges 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=15695#mg-rfq

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