博文

目前显示的是 一月, 2021的博文

The function and characteristics of infrared hemispherical fairing

  The fairing is a protective cover added to the outside of the payload in the infrared guided missile system. It is widely used in various rockets and missiles. As the protective cover at the forefront of the imaging system, the fairing must bear the aerodynamic load to protect the infrared optical system from the external environment (such as sand, rain, snow, sand, etc.) firstly. Secondly, the fairing must not affect the imaging and aberration correction of the optical system as much as possible. Sometimes, the fairing also needs target stealth and anti-missile technology. The spherical structure is the earliest structure adopted by the infrared fairing. Its characteristic is that the inner and outer surfaces are spherical. The centers of the spheres coincide, corresponding to the internal optical system. The spherical fairing is easy to process. The internal optical system is easy to design. During the imaging process, the aberration of the hemispherical fairing to the optical syst

What are the Small Details that Should be Paid Attention to in the Use of Optical Filters?

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  As a   Silicon Domes Manufacturer , share with you. The filter is an optical device used to select the required radiation band. One of the common characteristics of filters is that there is no filter to make the image of celestial bodies brighter, because all filters absorb certain wavelengths, which makes the object darker. The filter is made of plastic or glass with special dyes. The red filter can only let red light pass through, and so on. The transmittance of the glass sheet is originally similar to that of air, and all colored light can pass through, so it is transparent, but after dyeing it, the molecular structure changes and the refractive index also changes, which changes the passage of certain colored lights. Filters are widely used in the photography industry. A color filter is an optical filter that expresses colors. It can accurately select the small range of light waves to be passed, and reflect other undesired wavelengths. Color optical filters are usually installed i

Which optical components are used in the optical coherence tomography system?

  Optical coherence tomography technology uses broadband light sources with low-coherence to achieve optical tomography with high-resolution, which images scattering media, including biological tissues. Basic structure Optical coherence tomography technology is an imaging system based on fiber interferometer. It also includes photoelectric detection, signal processing and auxiliary platform  components. The fiber interferometer is mainly composed of SLD, laser, fiber coupler, horizontal and vertical scanning system (lens group:  double convex lens , scanning galvanometer). The photodetection includes a fiber collimator (Aspheric lens or self-focusing lens), oscilloscope and photomultiplier. OCT systems are often combined with catheter probes, endoscopic probes or laparoscopic probes. Optical Components Laser mirror , lens group(double convex lens), scanning galvanometer, aspheric lens,  GRIN lens W orking  P rinciple After the light is emitted from the broadband light source, it is div

Optical componments manufacturer CLZ optics of 2020 development summary

  It has been a very difficult and unusual year and CLZ optics would like to take this opportunity to thank you all customer for help and cooperation and trust.   Although this is a difficult year, but it did not stop the development of our company.   As  Optical componments manufacturer  CLZ optics has a CNY 1M investment in equipment targeted to increase capacity and improve upon capabilities for producing spherical lenses,  optical dome , optical windows and optical mirrors in 2020.   These investment includes: 2 new GJP30.4A/35.4A Four-axle High-speed Precision Grinding and Polisher 1 new SPCM-M1 SIDAI Centering Machine 1 new Digital Lenses Centration measurement and Focal length tester 2 new Interferometer Transmission Spheres   Our new High-speed Precision Grinding and Polisher, It improves and improves our processing accuracy and efficiency in large optics. New machine is very stable, it is good for spherical lenses,  optical mirrors  with diameter of more than 120mm. For the sm

How do fiber lasers work?

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  Fiber laser is a device that uses rare-earth-doped fiber as the gain medium to generate laser output. Fiber lasers can be developed on the basis of fiber amplifiers. Because the fiber cores of fiber lasers are very thin, under the action of pump light, the internal power density of the fiber is high, which makes the laser energy level appear "population inversion" phenomenon. On this basis, a resonant cavity is formed into a positive feedback loop to form a laser oscillation at the output. The structure of fiber lasers is similar to traditional solid-state laser and gas laser, mainly composed of three parts: pump source, gain fiber, and reson ant cavity. Among them, the pump source is generally a high-power semiconductor laser, which is used as external energy to make the gain medium achieve population inversion. The gain fiber is a glass fiber doped with rare earth elements, which is a gain medium used to generate photons. The resonant cavity is generally composed of two m

What is the Difference Between Spherical Lens and Aspheric Lens?

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  As a   Spherical Lenses Manufacturer , share with you. It is simple and relatively inexpensive to manufacture a lens whose surface is part of a plane or part of a sphere. Such a lens cannot focus light well; the lack of focus is spherical aberration. Spherical aberration is particularly prominent in large, fast (bright) lenses. This lack of concentration is manifested in various forms of ambiguity. This problem can be corrected by placing other lenses in front of and behind the lens. It can also be corrected by changing the shape of the lens surface (making them aspherical), but this tends to be more difficult and expensive. The aspherical is not. Custom Silicon Spherical Lenses When other lens elements are added as corrections, they increase the amount of glare and reduce the contrast of the photo, and increase the size and weight of the lens. They may also change color slightly. Therefore, an aspheric element usually signals that the lens is finished to produce a contrasting color