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Punching Lens
Our company is a specialized high precision glass lens manufacturer. Our precision glass lens has passed many testing for its high durability, which can show its superior features in the application of Camera,Projector and Magnifier.
The application of lens in life
A lens is made according to the refraction law of light, which is divided into a convex lens and a concave lens. The lens can be widely used in security, vehicle, digital camera, laser, optical instruments, and other fields. With the continuous development of the market, lens technology is also more and more widely used.
Camera
The camera is made by using the principle that a convex lens can form a reduced inverted real image. A convex lens or lens group is applied to the camera lens. The light from the object will form an inverted and reduced real image on the film after passing through the camera lens. The farther the object is from the lens, the smaller the image, and vice versa. The film is coated with a layer of photosensitive material, which changes chemically after exposure, and the image of the object is recorded on the film. After development and fixing, it becomes a negative, and then the negative is developed and printed to get a photo.
A camera is an optical instrument that takes pictures of the scenery. Its invention makes photography technology develop continuously. Photography can help us record the imprint of history, transmit all kinds of information, create art, give people aesthetic pleasure, and so on. With the evolution of civilization and the progress of science, photography is becoming more and more closely related to people's lives, ranging from taking souvenir photos for tourism to scientific research, space flight, and recording deep-sea scenes that human beings cannot reach, all of which are inseparable from photography technology.
Projector
The projector is mainly made of the principle that the convex lens can form an enlarged and inverted real image. During projection, keep the distance between the projection film and the convex lens between 1~2 times the focal length, and then change the propagation direction of light through the plane mirror, so that the upward light can be imaged on the screen, and the resulting image is an inverted and enlarged real image compared with the projection film. The closer the convex lens is to the projection, the larger the image, and vice versa. When projecting, put the projector on the stage first, and then adjust the distance from the projector to the convex lens. At the same time, pay attention to adjusting the angle of the plane mirror so that the image is in the middle of the screen.
The projector is an optical instrument that can magnify a certain size of pictures and image them on the screen. It is widely used in daily life, such as multimedia teaching and office equipment. It brings a lot of convenience to our teaching and work.
Magnifier
A magnifying glass is a convex lens with a short focal length, which is used to form an upright and enlarged virtual image. When the distance between the object and the convex lens is less than one time of the focal length, an upright and enlarged virtual image can be seen through the convex lens. The image and the object are on the same side of the convex lens. The closer the magnifying glass is to the object, the smaller the image will be obtained, and vice versa.
A magnifying glass is an optical instrument used to observe small objects, which is also widely used in our daily life. For example, people often use it to read relatively small fonts; Use it to see complex maps; Magnifying glass is often used in criminal investigation and jewelry identification.
