• Product
  • Spectroscopy
  • Sigma-Koki
  • Sigma-Koki
  • Sigma-Koki
 
 
Sigma-Koki
Spectroscopy
Detectors
Visualization (가시화)
LAMP
Laser beamprofilter
Cryogenic
Laser
Sigma-Koki
Fluorescence Life Time
Fiber&probe
 
Sigma-Koki
SLGE (게르마늄평면볼록 렌즈)
  • SLGE (게르마늄평면볼록 렌즈)
  • 반도체에서 사용되는 게르마늄의 단결정은 2~20μm의 적외파장에서 흡수가 적고, 적외광용의 광학소자로서 사용됩니다. 이 게르마늄결정으로 만든 단렌즈입니다. 서모그래피 등의 적외선을 관찰하는 카메라의 렌즈로서 사용할 수 있습니다.
tention

▶Germanium lens can have metallic luster, so that visible light is reflected and absorbed. Because of this, no transmittance occurs.
▶Germanium lens without an anti-reflection coating has a loss due to surface reflection. It causes that the transmittance is about 40%.
▶For the observation of infrared wavelengths, it is necessary to consider the effect of the radiation spectrum by temperature. In case of using in an environment of 30℃ or more, radiant light of infrared (near 9.6μm) is emitted from all substances, and it will not be able to properly observe the infrared spectrum to be observed.

Common Specifications
MaterialGermanium (Ge)
Design Wavelength10.6μm
CoatingUncoated
Surface reflectance36% at 5μm
ShapePlano-convex spheric (Polished surface on both sides)
Eccentricity<3′
Clear aperture90% of the diameter
Surface Quality (Scratch-Dig)60-40

 

주제
 
   
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