Foreign Particle Observation and Analysis

The VHX Series 4K Digital Microscope has realized a depth of field that is approximately 20 times deeper than that of conventional microscopes. The real-time depth composition function can be used to quickly obtain high-definition 4K images in which the entire target is fully focused, even in the case of three-dimensional targets. Obtaining such images makes observation accurate and improves the efficiency of work, regardless of the shapes of the foreign particles.

Observation of a foreign particle using the depth composition of the VHX Series 4K Digital Microscope

In this example, foreign particles contaminating multi-layer films, which are used in the packaging of food and medicine, are observed. Conventionally, it was not possible to determine the shape of a foreign particle because ring-shaped reflections occurred at the location where the foreign particle causes a bump in the film.
With the VHX Series 4K Digital Microscope, the ring-reflection removal function—which instantaneously obtains multiple images with varying ring illumination lighting directions at the push of a button—can eliminate these ring-shaped reflections. Eliminating ring-shaped reflections enables clear observation of foreign particle shapes by preventing the effect of reflections from the film surface.

Observation of a foreign particle in a multi-layer film using the VHX Series 4K Digital Microscope

Among all foreign particles, insects have extremely complex three-dimensional shapes and often have low color contrast.
With conventional microscopes, time-consuming lighting adjustments must be made in order to properly observe the target.
The VHX Series 4K Digital Microscope is equipped with a multi-lighting function that quickly obtains multiple images with various types of lighting from all directions at the push of a button. This function enables users to simply select the image that is appropriate for observation from among all the obtained images. This function eliminates the time and effort that was previously spent on adjusting lighting conditions.
Image data containing the entire range of lighting conditions is automatically saved, and past images can be opened and observed under different conditions. This function increases throughput and allows for more samples to be analyzed.

Observation of a foreign particle (insect) using the VHX Series 4K Digital Microscope

The high-resolution HR lens and motorized revolver of the VHX Series 4K Digital Microscope enable a seamless zoom function that automatically switches between lenses according to the magnification. This seamless zoom eliminates the time and effort that were required to replace lenses and enables magnified observation from 20x to 6000x with intuitive operations.
The cutting-edge optical system and 4K CMOS enable clear observation of fiber structures and foreign particles, even at high magnifications.

Low-magnification/high-magnification observation of fibers using the VHX Series 4K Digital Microscope

High-resolution 4K images can even be obtained at high magnifications. Clear observation of cuticle shapes is even possible with hair samples. This clear observation makes it possible to quickly identify whether contaminating hair belongs to a human or an animal or is actually a fiber from a piece of clothes.

With the VHX Series 4K Digital Microscope, foreign particles can be clearly observed and analyzed even in the case of cotton swabs and other such targets having three-dimensional structures.
Due to the limitations of the depth of field of conventional microscopes, it was only possible to bring a part of a three-dimensional target into focus at a time. Hence, it sometimes was difficult to observe microscopic foreign particles due to insufficient resolution.
The VHX Series can obtain high-definition images of the structure of foreign particles present in three-dimensional cotton swabs with the entire target fully focused. These images enable smooth foreign particle analysis in which nothing is overlooked.

Foreign particle analysis of cotton swabs using the VHX Series 4K Digital Microscope

Metal fragments with uneven surfaces are traditionally difficult to focus and identify foreign particles.
The VHX Series 4K Digital Microscope large depth of field enables the entire fragment to be brought into focus, enabling simple identification of foreign particles.

Releasing food in which foreign particles have adhered to is a serious problem that harms the safety and reliability of the product.
The VHX Series 4K Digital Microscope can be used to quickly perform high-magnification inspection of food surfaces to identify any contamination.

With conventional microscopes, observing foreign particles in plastic films is especially difficult, due to the high-degree of transparency.
The VHX Series 4K Digital Microscope uses backlighting to highlight foreign particles contaminating a transparent film.

With conventional microscopes, foreign particles are sometimes overlooked because it is only possible to bring a part of the sample into focus at a time. Targets with curved surfaces are particularly hard to inspect.
The deep depth of the field of the VHX Series enables it to perform inspection even on curved surfaces, such as checking for mold on the surface of a donut. The deep depth of field ensures no foreign particles are overlooked.