---
title: "Co2 laser ZnSe Negative Lens"
url: "https://bmlaser.co.kr/co2-laser-znse-negative-lens/"
description: "Diameter Tolerance +0/-0. 13mm Thickness Tolerance ±0. 25mm FL Tolerance <+/-2% Centration <3 arc minutes Clear Aperture >90% Surface Figure <λ/2 per 1”email protected Surface Quality 40-20 scratch and dig AR/AR Coating"
image: "https://bmlaser.co.kr/wp-content/uploads/2021/04/303_shop1_718845.jpg"
type: "Article"
datePublished: "2021-04-13T14:39:14+00:00"
dateModified: "2021-04-15T14:18:07+00:00"
---

# Co2 laser ZnSe Negative Lens

Diameter Tolerance +0/-0. 13mm Thickness Tolerance ±0. 25mm FL Tolerance <+/-2% Centration <3 arc minutes Clear Aperture >90% Surface Figure <λ/2 per 1”[email protected] Surface Quality 40-20 scratch and dig AR/AR Coating R<0. 5% per surface @10. 6um