SeeNano in Comparison - Grayfield Optical Inc - High Resolution Optical Microscopes

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SeeNano in Comparison

Products
Conventional Optical Microscopes
SeeNano Lab
(Prototype)
SeeNano Pro
(Prototype)
Features Compared
Conventional Optical Microscopes
SeeNano Lab Series
SeeNano Pro Series
Lab-U
Lab-I
Lab-T
Pro-U
Pro-I
Pro-T
Resolution Incident
Theoretically, 200nm
<200nm
<200nm

<100nm
<100nm

Resolution Transmitted
Practically ~ 400nm
200nm

200nm
100nm

100nm
True magnification limit
800x (dry), 1600x (oil)
Up to 4500x (dry)
Greater than 8000x (dry)
Numerical Aperture
0,95 (dry), 1,40 (oil) N.A.
0.85 to 0.9 N.A. (dry)
0.85 to 0.95 N.A. (dry)
True color contrast
None at high mag.
Full, even at high mag.
Full, even at high mag.
White light source
Yes, for low res. only
Yes, even at max. res.
Yes, even at max. res.
Variable DOF
Low DOF, fixed
Low to extreme DOF
Low to extreme DOF
Contour sharpness
Poor at high mag.
High at all mag.
High at all mag.
Reflection free
No
Yes
Yes
Staining required
Staining required
Staining not necessary
Staining not necessary
Oil immersion required
Yes, beyond 0.95 N.A.
No, max. 0.95 N.A.
No, 0.95 N.A./extended WD
Brightfield
Yes
Yes
Yes
Darkfield
Yes
Yes, but Grayfield better
Yes, but Grayfield better
Grayfield
No
Yes, with full color contrast
Yes, with full color contrast
Phase Contrast
Yes
Improved, with contour sharpness
Improved, with contour sharpness
Living samples in vitro
Yes, for limited time
Yes, for extended periods
Yes, for extended periods
Sample warmth level
Bis zu 60° C über Raumtemp.
Up to 3° C over room temp.
Up to 3° C over room temp.
Transparent samples
Not possible
Yes, incl. absolute transp.
Yes, incl. absolute transp.

Notes:

  • Resolution values given for the SeeNano microscopes relate to the practical achievable resolution. The maximum theoretical (although not achievable) resolution is 10nm with the Grayfield Lens System.
  • The standard methods of measuring magnification in microscopes becomes too inaccurate beyond 1500x. We therefore determine the precise magnification factor by imaging a calibrated test slide with nanometer scale and printing that image on 10x15cm paper. The enlargement factor in relation to the grid is then used to calculate the actual magnification factor. Every objective combination is tested so that we can provide exact magnification ratios. As there are no parallax errors with our systems, it is possible to measure distance in any direction.
  • For each microscope, there are a wide range of dry objectives available to match your application, e.g. 2,5x, 4x, 10x, 20x, 40x, 60x, 80x, 100x with n.A. up to 0.95 - some with extended working distance (WD). As the costs of the individual objectives vary widely according to their specifications, general price quotes are not meaningful before your exact requirements have been determined.
  • The SeeNano Lab series, has been optimized to make it an affordable alternative to those considering high quality conventional optical microscope systems, yet with an image quality, depth of field and color contrast that is considerably better and especially suitable for live blood and live cell analysis. For technical reasons, it is not feasible to provide a SeeNano Lab microscope with both incident and tranmitted light in one unit (costs would be higher than two individual microscopes).


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© 1976-2017: Grayfield Optical, Inc.
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