Hot Mirror, 50.8 x 50.8 mm, 0° AOI, 420-690 nm Transmittance

20HMS-0
€ 466.00

Description

 

The 20HMR-0 Hot Mirror is a 50.8 x 50.8 mm square 0° mirror used as a heat control filter. Our hot mirrors are heat-reflecting shortpass filters designed to transmit 420-690 nm visible wavelengths while reflecting 725-1550 nm near-infrared heat generating wavelengths. These filters can be used to remove heat from an optical system.

 

Product Series Overview

Hot Mirrors

 

Technical Specs

• Type
  Hot Mirror
   
• Optic Size
  50.8 x 50.8 mm
   
• Angle of Incidence
  0° ±15°
   
• Transmittance Range
  420-690 nm
   
• Transmission
  ≥85%
   
• Reflectance Band
  725-1550 nm
   
• Reflectance
  Ravg≥90% 725-1550 nm
   
• Material
  Borofloat® borosilicate float glass
   
• Surface Quality
  80-50 scratch-dig
   

• Surface Flatness
  6–8λ per 25.4 mm at 546.1 nm over the clear aperture
   
• Thickness
  3.3 mm
   
• Thickness Tolerance
  ±0.2 mm
   
• Size Tolerance
  ±0.4 mm
   
• Clear Aperture
  ≥central 90% of dimensions
   
• Temperature Range
  -100 to 500 °C
   
• Cleaning
  See How to Clean Optics
   
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