Cover glasses

Cover Glass Thickness 1

  • Thickness: 0.13 - 0.16 mm
  • Made of borosilicate glass, 1st hydrolytic class
  • Completely colorless and clear
  • Suitable for fluorescence microscopy
  • Complies with DIN ISO 8255 standards

Cover Glasses Thickness 1 from Marienfeld

  • Approved for in-vitro diagnostic applications in accordance with IVD Directive 98/79/EC
  • Features CE mark and batch number for comprehensive information and traceability

For covering microscopic specimens on microscope slides

  • To prevent condensation from forming on the objective lens
  • To provide the specimen with an optically flat surface

Cover glasses of thickness no. 1 are standardized to a thickness of 0.17 mm with a refractive index of 1.5255. The thickness of the cover glass must be considered when designing the microscope objective; otherwise, image quality may be compromised.
However, objectives with a numerical aperture up to 0.30 can typically be used with or without a cover glass. Oil immersion objectives can even reach a numerical aperture of up to 1.25.
The numerical aperture refers to the measure of a lens's ability to gather light and resolve fine details.


Material
clear glass
Width
18 mm
Length
18 mm

Material
clear glass
Width
20 mm
Length
20 mm

Material
clear glass
Width
22 mm
Length
22 mm

Material
clear glass
Width
24 mm
Length
24 mm

Material
clear glass
Width
24 mm
Length
32 mm

Material
clear glass
Width
24 mm
Length
40 mm

Material
clear glass
Width
24 mm
Length
50 mm