Changchun Long Ze Precision Optics Co., Ltd.

  In meteorological observation, solar radiation is an indispensable measurement parameter. The observation of solar radiation includes total radiation, scattered radiation, direct radiation, reflected radiation, ultraviolet radiation etc. Analysis of solar radiation parameters plays a major role in the research of solar energy, meteorology, environmental ocean, agricultural ecology, building materials and other aspects. Instruments for detecting solar radiation usually use a  glass dome  cover as windshield, which is often made of optical glass with high transmittance. The spectral range of the windshield is 280-3000nm. The  optical dome  isolates the sensor in the meter from the external environment and protects the sensitivity of the sensor. Besides, the optical dome effectively prevents the sensor from aging due to changes in the environment,  improves the anti-interference ability of the radiometer and prolongs the service life of the radiometer. The quartz dome is the most common

Optical theodolite is a precision optical instrument used to measure horizontal and vertical angles. It is widely used in engineering surveying, geodetic surveying and metrology. In engineering control measurement and precision engineering measurement, angle measurement mainly uses precision optical theodolite. The optical theodolite is mainly composed of a telescope and an internal imaging light path. The telescope images distant targets at different distances to enlarge the angle of view so that they can be seen more clearly. The telescope needs to form the collimation axis, aiming at the target accurately to determine the direction of the sight line of the target. The telescope consists of an objective lens (a set of cemented lens), an eyepiece (double-convex lens and plano-convex lens), a cross reticle and a focusing lens. The objective lens and eyepiece magnify the target image. The focusing lens is used to adjust the position of the target image to eliminate parallax  error . Th

As a   Dome Lens Manufacturer , let me share with you. The raw materials for the production of optical glass are some oxides, hydroxides, nitrates and carbonates, and phosphates or fluorides are introduced according to the requirements of the formulation. In order to ensure the transparency of glass, the content of colored impurities, such as iron, chromium, copper, manganese, cobalt, and nickel, must be strictly controlled. When ingredients are required, accurate weighing and uniform mixing are required. Fused Silica Windows The main production process is smelting, forming, annealing and inspection. Then the specific steps are as follows: 1. There are single crucible batch smelting method and continuous smelting method in tank kiln for smelting. Single crucible smelting method can be divided into clay crucible smelting method and platinum crucible smelting method. No matter what kind of smelting method is used, it needs to be stirred with a stirrer, and the temperature and stirring ar