Microscope Objectives


Microscope objectives for NIR-Raman spectroscopy

RiverD International offers a unique range of custom-designed microscope objectives for use in near-infrared Raman microspectroscopy.

Numerical
aperture
Immersion Substrate/
cover glass  correction
Working
distance [mm]
Application
0.65 dry no 2.5 For upright microscope setup
0.85 dry no 2.5 For upright microscope setup
0.78 dry 0.8 mm fused silica 1.7 For inverted microscope setup
0.85 oil (n: 1.45) 0.5-1mm fused silica 1.5* For inverted microscope setup
1.2 oil (n: 1.45) 0.5-1mm fused silica 1.5* For inverted microscope setup

Specifications:

  • on-optical-axis diffraction limited design
  • achromatic design: 650-1000nm
  • transmission: >85% (650-1000nm)
  • lens materials selected for minimization of Raman/luminescent signal background
  • infinitely corrected
  • back aperture: 10mm
  • thread M25 x 0.75
  • objective design optimized for use with fused silica cover glasses/substratee

Accessories

NIR achromatic (650-1000nm) custom-designed re-focusing lens, optimized for use with the range of objectives shown above (diameter: 25mm, focal length: 100 mm)

Recommended immersion oil/gel

Cargille fused silica matching liquid (code numbers: 50350, 06350) Cargille optical gel (code numbers 0607, 0608)

Services

  • Raman objective customization
  • Raman objective design & production to customer specification

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Contact us

RiverD International B.V.
Marconistraat 16, Europoint IV
3029 AK, Rotterdam
The Netherlands

info@riverd.com

+31 (0)10 704 48 41

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