The human eye is a complex and sophisticated device that can make out objects with a size of at least 0.1 mm, i.e. 100 microns. To examine objects whose dimensions are beyond the resolution of the naked human eye, microscopes are used.
These optical-mechanical devices are actively used for visual observations and studies, increasing the objects in question several times. To get additional details, view here: Trinocular microscopes
One of the varieties of optical microscopes, stereo microscopes, which through a system of lenses allow you to obtain a three-dimensional image of the sample. They have a high depth of field with a large space under the lens.
Microscope device
The basic structural and technological scheme of an optical microscope includes a mechanical and optical system. The basis of the mechanics of a stereo microscope is a tripod, which performs the function of fixing the optical apparatus, consisting of a massive base, coarse focusing screws, tube holder, stage, mechanisms that move the tube vertically.
The optical unit of a stereo microscope is represented by a lighting system, a lens and eyepieces. It is the lens that determines the useful magnification, forming an image accurate in shape and color of the object of study. It consists of a complex system of lenses glued together.
Eyepieces are somewhat simpler in design than lenses, they consist of only two groups of lenses: ocular and field. A stereoscopic microscope reproduces the image in the left and right eyepieces at different angles, creating the feeling of a three-dimensional image. It is as if the observer sees the object from two sides: the spatial orientation is not lost, you can easily determine the relief, surface structure.
For uniform illumination of objects in the field of view, light sources are used: coaxial, fiber or LED illuminators. Stereomicroscopic studies are carried out both in reflected and transmitted light.
Trinocular microscope what is it?
Binocular and trinocular optical heads are distinguished depending on the number of eyepieces. In the latter, a digital camera acts as the third eyepiece, which is connected to the observation tube through an adapter. By connecting the camera, you get the opportunity to digitize data for further analysis and present them in photo or video format.
Trinocular for comfortable long-term work
Crystallite ST-7045 based on a high-resolution camera with a VGA input is an optical device of the trinocular type. The stereomicroscope’s heart is high-quality optics: a revolver with smooth change of a wide range of magnification provides a three-dimensional clear image throughout the field of view.
Thanks to the large working distance of 100 mm, reliable focusing is ensured even with uneven part surfaces. This allows the operator to use tweezers, soldering tools, instruments for dissection and manipulation of samples.
Ergonomic solutions, such as a built-in diopter adjustment, which allows you to adjust the image focusing to a particular vision, a comfortable height and angle of the tube, a bright ring LED illuminator - all these solutions simplify the work behind the microscope.
Areas of use
"Workhorse" Crystallite ST-7045 provides the flexibility to use for various purposes:
- dissection of biological samples;
- from research of metallographic samples to polishing and grinding;
- solving problems of industrial assembly, inspection of electronic components and products, modules, printed circuit boards, crack measurement of soldering miniature radio components, SMD components of metal, plastic assemblies;
- visual inspection of jewelry, restoration work.
You probably already know that there are several types of car tires available on the market. What most drivers don't know, however, is how to differentiate each driver.
Our team decided to create a short guide on the subject. In today's article you will find out all about the striking features of each type of car tire. Stay with us!
Inside Car Tire Types
You may be quite surprised to read the next few lines. In addition to the technical details, tires of different types often bring very characteristic aesthetic details.
When it comes to car tires, there are basically 4 very popular types:
On-road tires
On-road tires are aimed at vehicles that drive mostly in the city. If you live in an urban environment, you probably see hundreds of on-road tires every day.
For a car to travel safely around the city, on road tires have smaller grooves, ensuring a greater contact area of the carcass with the ground.
Off-road tires
Off road tires, in turn, have very striking features and are perfect for those who will use the car predominantly on dirt roads or mud.
In an interview with Auto Esporte Magazine , Fábio Magliano, Pirelli's Marketing, Product and Motor Sport Manager, says the off tires “have a wider tread, wider grooves and reinforced casing”.
These strokes naturally make the off-road tire stronger and more effective on dusty, rocky, watery terrain.
