Fairing Underwater Objective Optical Design
Fairing is an important device used in underwater objective optical design, which can effectively improve the imaging quality of the objective. This article will discuss the role, design principle, structural characteristics and application scope of the fairing.
1. The role of the fairing
Fairing is a device used in underwater objective optical system, which is used to improve the imaging quality of the objective underwater. In the underwater environment, due to the difference in the refractive index and density of water, light will experience refraction, scattering and other phenomena, resulting in imaging blur, distortion and other problems. The main function of the fairing is to avoid the interference of these lights so that the objective can better image.
2. Design principle of fairing
When designing the fairing, it is necessary to consider the characteristics of the underwater environment and the optical performance of the objective. Generally speaking, the design principle of the fairing can be summarized as follows:
1. Reduce the interference of water flow on the objective: In the underwater environment, the presence of water flow will interfere with the propagation of light, thereby affecting the imaging quality of the objective. Therefore, in the design of the fairing, it is necessary to consider how to reduce the interference of water flow on the objective lens. Usually, a streamlined design is adopted to make the water flow as smooth as possible when flowing on the surface of the fairing, reducing the generation of turbulence.
2. Reduce refraction and scattering: The difference in the refractive index and density of water will cause the refraction and scattering of light, thereby affecting the imaging quality of the objective lens. In order to reduce this effect, the surface of the fairing usually uses special optical materials, such as optical glass or optical plastic, which have a smaller refractive index and scattering rate. In addition, the influence of refraction and scattering can be further reduced by surface coating and other methods.
3. Improve light transmittance: In order to improve the imaging quality of the objective lens, the fairing needs to improve the transmittance of light as much as possible. In the design, a suitable shape and size can be used to make the light pass through the fairing as evenly as possible to reduce energy loss.
3. Structural characteristics of the fairing
The structure of the fairing usually consists of a cover body, a water inlet and a water outlet. The cover body is the main part of the fairing, and its shape and size
will directly affect the transmittance of light and the imaging quality. The water inlet is used to guide the water flow into the fairing, and needs to be designed into a streamlined shape to reduce the generation of turbulence. The water outlet is used to discharge the water flow through the fairing, and it also needs to consider the streamlined design to keep the water flow stable.
4. Application scope of fairing
Fairings are widely used in underwater objective optical systems, such as underwater photography, underwater observation and other fields. In underwater photography, fairings can effectively improve the clarity and color reproduction of photos, making the photographic works more realistic. In underwater observation, fairings can improve the imaging quality of observation equipment and make the observation results more accurate and reliable.
Fairings are an important device for underwater objective optical design, which can effectively improve the imaging quality of objective lenses. When designing fairings, it is necessary to consider factors such as interference, refraction and scattering of water flow, and transmittance of light. The structural features of fairings mainly include the cover body, water inlet and water outlet. Fairings are widely used in underwater photography, underwater observation and other fields, providing an effective solution to improve the imaging quality of underwater optical systems.
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Hanzhong Brisun Optics Co., Ltd. Is the high precision optical element manufacturer provides customized production of Various optical lenses, including spherical lens, cylindrical lens, optical window, mirror, prism, filter, metal base mirror and other high-precision optical elements. The base materials include various optical glass, fused quartz, calcium fluoride (CaF2), zinc selenide (ZnSe), germanium (GE), silicon (SI), sapphire, metal and other materials. And provide antireflective film, high reflection film, spectroscopic film, metal film and other optical coatings.
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