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Protected Gold Mirrors > Protected Gold Mirror BK7

Introduction

Total reflection mirrors coated with gold (Au) that has high reflectance in a wide range of infrared. Chromium (Cr) is slightly undercoated to reinforce adhesion of gold to the substrate.
 
 

Standard Specifications

  
 

Items

Specifications

Material

BK7 Grade A or equivalent Optical Glass

Dimension Tolerance

+0.0/-0.2 mm

Thickness Tolerance

± 0.2 mm

Clear Aperture

> 90%

Parallelism

< 30 arc seconds

Flatness

λ/4 at 632.8 nm (Substrate)

Surface Quality

scratch and dig 40-20

Bevel

0.5 (0/-0.3) mm

Coating

Cr+Au

Reflectivity

Ravg≥ 99%

Notes:

1. Surface Quality could reach 40-20

2. Parallelism such as 1’ is available.

3. Please show us the size and the coating specification.

 

  
   
 

Part NO.

D(mm)

t(mm)

MPG0101

30.0

3.0

MPG0102

40.0

4.0

MPG0103

50.0

5.0

 

  

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