Products & Services > Special Digital Video Microscopy Techniques
3D Digital Video Microscopy
- 3D rotation
- 3D-profiling (DFD)
- Differential Interference Contrast
- 3D RGB Intensity profiling
3D rotation
Rotation head with two reflector mirrors
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Video recording of samples real time
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3D-profiling (DFD)
Creating 3D Images from 2D Images
Image Composition (D.F.D. Method)
The D.F.D. method enables image composition using less sampling data than conventional models.
The D.F.D. method calculates the positions of projections and depressions in the area in which focus
cannot be obtained based on multiple images and obtains the data of height differences. As a result,
image composition is enabled with less sampling data than with conventional models. There is no need to
capture images at all focus positions, enhancing the efficiency of analysis operations.
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Useful when the Profile is Unclear Using only 2-D Images
The 3-dimensional profiles are often unclear from 2-D observation images. In such cases, the "3-D display"
function allows the user to understand the profile at a glance and observe the target from various angles.
This enables the user to provide accurate reporting to the person in charge.
Depth of Field vs. Magnification
Generally the higher the magnification the smaller depth of field.
Thus the image composition function is crucial in microscopy
and digital microscopes greatly increase the efficiency of
producing images with overall focus.
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Constructing a 3D object of the 2D images |
Auto Focus Function
 Chip resistor before and after focusing (500x) |
2-Point Height Difference Measurement
 Bump (3000x) |
3D-profiling (split-target)
Principle of measurement
The Microscope system offers a precise focus indicator consisting of an index graticule (Target Mark) and a beam splitting prism build into reflecting illumination optical system of microscope. And it has been designed based on the optical principle that at just focus status, of which the upper and lower halves coincide, can be observed above the focused image of a specimen, and that when defocused even slightly, the index line is split into two lines in the upper and lower halves of the graticule.
Method of Measurement
An exact focal point is secured by confirming that the vertical index lines in the upper and lower halves of the graticule coincide with both of straight lines exactly, rather than by making judgments as to whether image of a specimen surface is blurred or not.
Since this is a unique system that is neither affected by the focal depth of objective lenses nor dependent on the ability of the human eyes to discriminate two points, a focal point can be determined very accurately as compared with other focusing systems. This focusing system and the digital gauge allow non-contact, high precision measurements of the heights between surfaces.
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We provide full automatic ‘split-target’ analyzer systems
