HS code mapping for infant formula imports

List of Contents of this article:

• 1, What is the principle of microscopy digital imaging? Which device is better to use?
• 2、 What are the components of the microscopic digital imaging system???
• 3, Digital Microscope The history of the mirror
• 4, What are the classifications of microscopes - Classification of microscopes

What is the principle of microscopy digital imaging? Which device is better to use?

The imaging principle of the camera: The optical imaging system of the camera is designed according to the geometric optical principle. Using the linear propagation properties of light and the refraction and reflection laws of light, it takes photons as the carrier to transmit the amount of light information of the captured scene at a certain moment to the photosensitive material through the camera lens in an energy way. Material, eventually become a visual image.

The principle of the microscope is: the eyepiece and the objective lens are both convex lenses with different focal lengths. The focal length of the convex lens of the objective lens is smaller than that of the convex lens of the eyepiece.The objective lens is equivalent to the lens of a projector, and the object is inverted and magnified through the objective lens. The eyepiece is equivalent to an ordinary magnifying glass, and the real image is formed into a vertical and magnified virtual image through the eyepiece.

The microscopic digital imaging system includes CCD/CMOS professional camera, image acquisition and processing software, microscope interface, data transmission line, etc. The most core equipment is CCD and CMOS image sensors. The former is composed of photoelectric coupling devices, and the latter is composed of metal oxide devices.

Microscopes can be classified according to the principle of microscopy, which can be divided into polarization microscope, optical microscope, electron microscope and digital microscope. Polarizing microscope is a microscope used to study so-called transparent and opaque anisotropic materials, which has important applications in geology and other science and engineering majors.

The optical principle is used to adjust the focal length of the camera. The focal length is the distance from the main point to the focus after the lens is optical. The length of the focal length determines the size of the imaging, the size of the field of view, the size of the size of the depth of field and the perspective of the picture. The focal length is the distance between the parallel light from the center of the lens to the focus of the light gathering.

Mirror seat, stabilize the lens body; mirror column, support parts above the mirror column. The mirror arm, the part where the mirror is held; the stage, the place where the slide specimen is placed. There is a light-through hole in the center, and there is a pressing clamp on each side. The lens barrel, the upper end is equipped with an eyepiece, and the lower end is equipped with a converter; a converter; a rotatable disc, and an objective lens is installed on it.

What are the components of the microscopic digital imaging system???

1. It is usually composed of optical part, lighting part and mechanical part.The main frame is used to support the whole microscope and maintain stability, which is the main body of the whole microscope. The objective lens is the main component that determines the resolution and imaging clarity of the microscope. The eyepiece is a visual optical device used to observe the images formed by the optical system ahead.

2. The microscope used in the school laboratory is composed of an eyepiece, a lens barrel, a converter, an objective lens, a coarse quasi-focus spiral, a fine quasi-focus spiral, a light-through hole, a carrier platform, a shader, a pressure clip, a reflector, a mirror holder, a column, a mirror wall and other parts.

3. Digital cameras are mainly composed of two parts: the framing system and the imaging system. Among them, the framing system consists of three parts: reflector, pentaprism and viewfider, while the imaging system is composed of shutter unit and image sensor.

4. CMOS: mutualComplementary Metal-Oxide Semiconductor CMOS (Complementary Metal-Oxide Semiconductor), like CCD, is a semiconductor that can record light changes in digital cameras.

5. It belongs to the microstructure. The microscope uses the magnification imaging principle of convex lenses to amplify tiny objects that cannot be distinguished by the human eye to the size that can be distinguished by the human eye. It is mainly to increase the angle of the eye of tiny objects in the near vicinity (objects with large viewing angle are imaged on the retina), and the angular magnification M is used to represent their magnification.

Digital Microscope's History

Microscope Spectroscopic microscope and electron microscope. Edit this section of optical microscope. It was first created by Janssen and his son in the Netherlands in 1590. The current optical microscope can magnify objects by 1,500 times, and the minimum resolution limit is 0.2 microns of biological microscope.

, Gerd Binnig and Heinrich Rohrer, two scientists from IBM's Zurich Laboratory, invented the so-called scanning tunneling microscope (STM).This microscope is more radical than an electron microscope, and it completely loses the concept of traditional microscope.

The original photomicroscope was a simple device that connected a photo dark box above the eyepiece of an ordinary microscope. A special photomicroscope began to appear in the 1930s. The structure and function of the photo microscope in the 1950s were much more complicated.

Microscope is one of the greatest inventions of mankind in the 20th century. Before its invention, human perceptions of the world around them were limited to using the naked eye or holding lenses to help the naked eye see.

What are the classifications of microscopes-classification of microscopes

1. Optical displayThere are many types of micromirrors, mainly including bright field microscope (ordinary optical microscope), dark field microscope, fluorescent microscope, differential microscope, laser scanning confocal microscope, polarization microscope, differential interference difference microscope, inverted microscope.

2. According to the type of light source, it can be divided into ordinary light, fluorescence, ultraviolet light, infrared light and laser microscope, etc.; according to the type of receiver, it can be divided into visual, digital (camera) microscope, etc. Commonly used microscopes include binocular steoscopic microscope, metallographic microscope, polarization microscope, fluorescence microscope, etc.

3. Microscopes are classified according to the principle of microscopy, which can be divided into polarized microscopes, optical microscopes, electron microscopes and digital microscopes. Polarizing microscope is used to study the so-calledA microscope of transparent and opaque anisotropic materials has important applications in science and engineering majors such as geology.

4. Differential interference differential microscopy (DIC) is also known as interference or interference microscope. Small phase changes can be seen and measured, which is similar to phase microscopy, so that the colorless and transparent specimen has changes in light, dark and color, thus enhancing the contrast.

5. Microscopes can be classified according to the principle of microscopy and can be divided into polarization microscope, optical microscope and electron microscope and digital microscope. Polarizing microscope is a microscope used to study so-called transparent and opaque anisotropic materials, which has important applications in geology and other science and engineering majors.