What Is a Travelling Microscope?

Stereo microscope, also known as solid microscope or dissection microscope. It refers to a binocular microscope with an orthographic stereoscopic effect, observing objects from different angles, and causing stereoscopic sensation in both eyes. The observation body does not need to be processed. It can be directly placed under the lens and illuminated to observe, as if it is upright, convenient for operation and dissection. The diameter of the field of view is large, but the magnification of the observation object is required to be less than 200 times. The characteristics of a stereo microscope are as follows: the left and right light beams in the binocular tube are not parallel, but have a certain angle-the body angle of view is generally 12 ° ~ 15 °, so the imaging has a three-dimensional stereoscopic impression, which is under the eyepiece The reason is that the prism turns the image upside down; although the magnification is not as good as that of a conventional microscope, its working distance is very long and the focal depth is large, which makes it easy to observe the entire layer of the object to be inspected and the field diameter is large. ^[1]

Stereomicroscope

Stereo microscope, also known as solid microscope or dissection microscope. It refers to a binocular microscope with an orthographic stereoscopic effect, observing objects from different angles, and causing stereoscopic sensation in both eyes. The observation body does not need to be processed. It can be directly placed under the lens and illuminated to observe, as if it is upright, convenient for operation and dissection. The diameter of the field of view is large, but the magnification of the observation object is required to be less than 200 times. The characteristics of a stereo microscope are as follows: the left and right light beams in the binocular tube are not parallel, but have a certain angle-the body angle of view is generally 12 ° ~ 15 °, so the imaging has a three-dimensional stereoscopic impression, which is under the eyepiece The reason is that the prism turns the image upside down; although the magnification is not as good as that of a conventional microscope, its working distance is very long and the focal depth is large, which makes it easy to observe the entire layer of the object to be inspected and the field diameter is large. ^[1]

Stereo microscope, also known as "solid microscope"

The change in the magnification of a stereo microscope is obtained by changing the distance between the intermediate lens groups, so it is also known as a "Zoom-stereo microscope". With application requirements, such as fluorescence, photography, video, cold light source and so on.

Technical Parameters:

Eyepiece: 10x / 16x / 40x (optional eyepiece multiples)

Objective lens: 1,0.63,2

Optical magnification: 7.8-160X

1. Adopt the most advanced CMO optical principle design in the world to provide users with the sharpest images.

2. Perfect 3D image, can provide clear and distortion-free image in the entire zoom range.

3. Wide-field optical observation.

4. Super long working distance.

Stereo microscopes use two independent optical channels to generate three-dimensional optical images, so they are also called solid microscopes and dissecting microscopes. They are low-power multiple optical microscopes. Grino {his father (1805-1852) was invented by the famous American sculptor and writer Horatio Shaolino} and was first produced by the German Carl Zeiss company. It has been scientific research, archaeological exploration, industrial quality Developments in areas such as control and biopharmaceuticals have had a positive impact.

In order to maximize the effectiveness of a stereo microscope, it is especially important to use the stereo microscope correctly.

step 1

Place the microscope on a platform that is comfortable for the operator, then turn on the reflected light (surface light), place a pattern on the microscope base, such as a coin, and turn the zoom knob of the microscope to the lowest multiple. Find it by adjusting the lifting group Approximate focal plane (best imaging surface).

Step 2

Adjust the viewing pupil distance of the eyepiece and adjust the diopter on the eyepiece to find the best focal plane.

Step 3

Using the above method, gradually increase the magnification of the zoom knob, adjust the microscope's lifting group appropriately, and gradually find the focal plane of the maximum magnification. During adjustment, please use the obvious reference points on the coin to compare the sharpness of the image.

Stereo microscopes are simple to operate, and stereo microscopes are also the most widely used. The main uses are as follows:

1. Studies in zoology, botany, entomology, histology, mineralogy, archeology, geology, and dermatology.

2. In the textile industry, it is used for the inspection of raw materials and cotton wool fabrics.

3. In the electronics industry, as a tool for spot welding and inspection of transistors.

4. Inspection of surface phenomena such as crack formation of various materials and corrosion of pore shape.

5. When manufacturing small precision parts, it is used for the machine tool tools, the observation of the working process, the inspection of precision parts, and the assembly tools.

6. Surface quality of lenses, prisms or other transparent materials, and quality inspection of precision scales.

7. Discrimination of the authenticity of paper money.

8. It is widely used in many fields such as textile products, chemical chemistry, plastic products, electronics manufacturing, machinery manufacturing, pharmaceutical manufacturing, food processing, printing industry, colleges and universities, archeological research and so on.

Stereo microscopes have a wide range of applications in industrial, agricultural, and scientific research departments due to their many advantages.

The stereo microscope system is an optical imaging system composed of a metallographic microscope and a macro camera platform. Its purpose is to form an image of a metallographic sample or photo. The stereo microscope can directly perform quantitative metallographic analysis on metallographic samples; the macro camera platform is suitable for analyzing metallographic photos, negatives and real objects.
In order to be able to store, process and analyze images with a computer, the images must first be digitized. A frame of image is composed of a distribution of different gray levels. It is represented by mathematical symbols as j = j (x, y), x and y are the coordinates of pixel points on the image, and j is the gray value.
Therefore, a frame of image can be represented by a moment of order m × n. Each element in the moment corresponds to a pixel in the image. The value of aij represents the gray value of the pixel in the image that belongs to the i-th row and the j-th column. A CCD camera (Charge Coupled Device Camera) is an image digitizing device. Stereomicroscope features on metallographic specimens are imaged on a CCD after the optical system and photoelectrically converted and scanned by the CCD, then taken out as an image signal, amplified by an amplifier, and quantized to a gray level and stored afterwards to obtain digital image. The computer sets the gray value threshold T according to the gray value range of the feature to be measured in the digital image.
For any pixel in a digital image, if its gray level is greater than or equal to T, the original gray level is replaced by white (gray value 255); if it is less than T, the original gray is replaced by black (gray value 0). Stereo microscopes can convert grayscale images into binary images with only two levels of black and white, and then perform necessary processing on the images so that computers can easily perform particle counting, area, and image processing on binary images. Image analysis work such as perimeter measurement. If pseudo-color processing is used, 256 gray levels can be converted into corresponding colors, so that details with close gray levels and their surroundings or other details can be easily identified, thereby improving the image and facilitating computer processing of multi-feature images.