Surface Flatness (P-V):

λ/20

Abbe Number (v_d):

56.2

Coating:

Uncoated

Coefficient of Thermal Expansion CTE (10^-6/°C):

0.1

Diameter (mm):

12.70 +0.0/-0.50

Thickness (mm):

3.20 ±0.8

Diameter (inches):

0.50 +0.00/-0.02

Thickness (inches):

0.13 ±0.03

Clear Aperture CA (mm):

11.40

Color:

Yellow Tint

Construction:

Single Surface

Density (g/cm³):

2.53

Index of Refraction n_d:

1.542

Knoop Hardness (kg/mm²):

620

Parallelism (arcmin):

≤3

Poisson's Ratio:

0.24

Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More

ZERODUR^®

Surface Quality:

60-40

Type:

Interferometry Window

Young's Modulus (GPa):

90.3

Bevel:

Protective as needed

Regulatory Compliance

RoHS 2015:

Compliant

Reach 211:

Compliant

Certificate of Conformance:

View

產品系列說明

直徑尺寸從1/2"到12"
每個直徑75mm及以上的λ/20平面反射鏡都帶有校准證書
具有標準金屬反射鏡鍍膜：λ/10反射鏡及λ/20反射鏡

光學平面反射鏡主要用作參考（測光板），可用來對比未知光學表面的平面度。每片反射鏡都經過我們專業驗光師的巧手精確打磨而成，並使用Zygo干涉儀進行測試以確保表面精度。單面平面反射鏡的第二層表面則經過高度拋光，以達到等同可觀察干涉樣式的窗口片質量。每個光學平面都放置於一個非常結實的盒子中用於保存。每個光學平板玻璃出貨時都裝設於耐用的儲存箱之中，提供永久保護。而直徑75mm及以上的λ/20平面反射鏡都帶有校准證書。

12.7mm Dia. λ/20 ZERODUR® Optical Flat

Regulatory Compliance

產品系列說明