# CO2 Laser Machine Znse Focusing Lens D20 Focal Length 50.8mm/63.5mm Anti-Reflective Coating OEM Customizable

> CO2 Laser Machine Znse Focusing Lens D20 Focal Length 50.8mm/63.5mm Anti-Reflective Coating OEM Customizable — an optical lens: Optical Glass, Uncoated.…

- Page: https://machiningglass.com/products/co2-laser-machine-znse-focusing-lens-d20-focal-length-50-8mm-63-5mm-anti-reflective-coating-oem-customizable/
- SKU: MG-56BC26
- Category: Optical Lenses, Prisms & Mirrors > Precision Optical Lenses
- Image: https://machiningglass.com/wp-content/uploads/2026/10/CO2-Laser-Machine-Znse-Focusing-Lens-D20-Focal-Length-50-8mm-63-5mm-Anti-Reflective-Coating-OEM-Customizable.webp
- Updated: 2026-10-24

Product type: Concave Lens. Application: Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging, Detection, etc. Model: OL-0330.

## Overview

CO2 Laser Machine Znse Focusing Lens D20 Focal Length 50.8mm/63.5mm Anti-Reflective Coating OEM Customizable: an optical lens in Optical Glass (Znse substrate). Listed geometry: diameter 1mm - 500mm (standard sizes available, custom dimensions supported), single-lens shape. Optical / electrical data: wavelength Uncoated, transmittance >95%. Supplied uncoated; surface quality 20-10 Scratch-Dig or Custom. Typical applications: 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 | Znse |
| Type | Concave Lens |
| Shape | Single-lens |
| Transmittance | >95% |
| Coating | Uncoated |
| Surface Quality | 20-10 Scratch-Dig or Custom |
| Usage | Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging, Detection, etc |
| Model NO. | OL-0330 |
| Lenses Color | Clear |
| Ar Coating Wavelength | Uncoated |
| Coating Type | Uncoated |
| Diameter Range | 1mm - 500mm (standard sizes available, custom dimensions supported) |
| Optical Performance | High light transmittance (≥92% for visible light), low chromatic aberration, precise focal length |
| Tolerance | Dimensional tolerance ±0.02mm, focal length tolerance ±1% |
| Coating Option | Anti-reflective coating (AR coating), hydrophobic coating, or custom coating as per request |
| Processable shapes | Lenses, Windows, Prisms, Wedges, Perforations, and elliptical components etc |
| Industrial Equipment | Laser marking machines, cutting machines, engraving machines, optical sensors |
| Electronic Devices | Cameras, projectors, optical communication equipment, medical imaging devices |
| Automotive Industry | Vehicle-mounted cameras, HUD (Head-Up Display) systems |
| Aerospace | Optical detection equipment, satellite communication systems |
| Supplier | C-Laser (Taicang) Material Technology Co., Ltd. |

## Technical data

| Parameter | Value |
| --- | --- |
| Product Name | convex lens |
| Material | CVD znse |
| Diameter | custom |
| Diameter Tolerance | +/-0.05mm |
| Focal length | 15mm |
| Surface Accuracy | 1/4 Lambda |
| Surface Quality | 60/40 |
| Paralle | 30" |
| Coating | AR coating or custom |
| Service | Support optical path design and provide drawings |
| Certificate | ISO9001 |
| Processable shapes: | Lenses, Windows, Prisms, Wedges, Perforations, and elliptical components etc |

## What to specify when you request a quote

- **Material** — listed as “Optical Glass”; name the glass or crystal.
- **Geometry** — listed as “1mm - 500mm (standard sizes available, custom dimensions supported)”; give diameter, focal length or radii, angles and tolerances.
- **Surface figure** — listed as “20-10 Scratch-Dig or Custom”; quote surface figure (λ) and scratch-dig.
- **Centring and edges** — state centration and edge chamfer.
- **Coating** — listed as “Uncoated”; 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 [Optical Glass Polishing for High Clarity Surfaces](https://machiningglass.com/capabilities/optical-glass-polishing-for-high-clarity-surfaces/). For an application example, read [How to Handle and Maintain Precision Glass Components in Laser Systems](https://machiningglass.com/applications/how-to-handle-and-maintain-precision-glass-components-in-laser-systems/). Before sending a drawing, check [Choosing Glass Materials for Optical & Industrial Components](https://machiningglass.com/resources/choosing-glass-materials-for-optical-industrial-components/). 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 CO2 Laser Machine Znse Focusing Lens D20 Focal Length 50.8mm/63.5mm Anti-Reflective Coating OEM Customizable made of?

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

### What sizes and thicknesses are available?

The listing gives diameter 1mm - 500mm (standard sizes available, custom dimensions supported). Custom outlines and thicknesses are made to drawing; state the tolerance you need.

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

Listed values: wavelength Uncoated, transmittance >95%. 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, Photography, Laser, Astronomy, Imaging and Detection.

### 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=14313#mg-rfq

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