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Night vision lens

Night vision lens

2021-11-25

The night vision device converts the invisible light (low light or infrared light) signal from the target into an electrical signal, and then amplifies the electrical signal, and converts the electrical signal into an optical signal visible to the human eye. Night vision products use the objective lens to focus the light on the image intensifier to collect and enhance the existing light. Inside the intensifier, a photocathode is "activated" by light and converts photon energy into electrons. These electrons pass through an image intensifier. The electrostatic area located inside the intensifier is accelerated and hits the phosphor surface screen to form an image visible to the human eye.

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Fisheye lens

Fisheye lens

2021-11-25

A fisheye lens is a lens with a short focal length and a field of view close to or equal to 180°. It is an extreme wide-angle lens, and "fisheye lens" is its common name. In order to maximize the photographic angle of view of the lens, the front lens of this photographic lens has a short diameter and a parabolic shape protruding toward the front of the lens, which is quite similar to the eyes of a fish, hence the name "fisheye lens", fisheye There are two kinds of lens imaging, one is like other lenses, the image is full of the picture; the other is circular. No matter what kind of imaging, the image taken with a fisheye lens is quite deformed and has a strong sense of perspective convergence. Therefore, it is often used as a special effect lens. The fisheye lens has a large field of view, so it is widely used in scene monitoring, satellite positioning, robot navigation, tiny intelligent systems, engineering surveying and other fields. Because fisheye lenses can achieve full-airspace tolerance and full-time real-time information acquisition, especially in line with the requirements of modern warfare for information acquisition technology, which is unmatched by other photoelectric detection methods, fisheye lenses are used in national defense and military The field has also been important applications. Fisheye lens is also suitable for spherical screen projection and special-shaped screen projection, such as the whole sphere, hemisphere and spherical crown projection in large museums and exhibition halls. The current dome projection projects mainly include: single projection (single projector placed near the center of the sphere), double stitching (two projectors are located at the two poles of the dome screen), and multiple splicing (mostly four, five and Above splicing). The fisheye lens produced by Wavefront has the following characteristics: • High-definition resolution to ensure clear imaging. • Large field of view, up to 210 degrees, can reach both sides of the road • Image distortion is small, and some fisheyes are corrected by Tailore Distortion. • Good uniformity of image surface illumination • Long back focus, can be equipped with various projectors • F# with relatively large and small aperture.

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Surveillance lens

Surveillance lens

2021-11-25

Surveillance lens, alias CCTV lens security lens, is used in the security system to match the use of cameras. It is the eye in the security industry. The main function is to collect the reflected light from the photographed object and focus the reflected light on the CCD. Features of Wavefront Surveillance Series Lens: 1. High-resolution design, the edge and center imaging are consistent, suitable for high-definition cameras; 2. Multi-layer coated optical lens, IR day and night correction design, can realize 24-hour full-time monitoring; 3. The image is clear and cost-effective; 4. The maximum aperture value F=1.3, so that it can provide sufficient luminous flux in a weak light environment; 5. Wide-angle design, the focal length can be adjusted to a short-focus angle of 140 degrees has been used in high-demand monitoring places such as banks, hospitals, schools, stations, docks, factories, and communities.

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Projection lens

Projection lens

2021-11-25

As projection becomes an increasingly indispensable element in life, the resolution of projection chips continues to increase, and projection lenses are more and more widely used. For a long time, projector lens products have been monopolized by foreign manufacturers. Wavefront Optoelectronics, as a well-known domestic product designer and manufacturer in the field of projection, has the ability to independently design and manufacture projection lenses. Products are widely used in wide-angle projection and dome projection. field. For the projection lens market, Wavefront Optoelectronics has more targeted research and development, and has formed applications that can be applied to Panasonic, Sanyo, NEC, Christie, Hitachi, Sony, Sharp, Mitsubishi, Epson, InFocus, Lixun, Baolight, Ai The lens series of its, ACTO, Optoma, ASK and other projectors.

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