Loupe lenses are suitable for young students and optical lens applications


The magnifying glass lens has many functions. For relatively young children, how should the material of the magnifying glass lens be selected? It may be better to choose a PC lens or a high-definition lens made of Trivex material.

  The magnifying glass lenses of these materials are not only lighter in weight, but also have better impact resistance and higher safety factor. The price of PC lenses is relatively cheap. You can usually choose according to your own conditions, try not to choose glass lenses, glass lenses are usually easier to break, and it will be bad if you accidentally hurt your hands or eyes.

   Magnifying glass lenses have many functions and uses. Among them, middle-aged and old friends love magnifying glasses. Optical lenses have some magnifying glasses that are specially developed for middle-aged and old friends, and their characteristic lies in their use. Convenient, can be carried around, expand the field of vision, the texture is generally very light, there is no feeling of weight, and the visual effect is very clear:

   uses a high-transmitting magnifying optical acrylic lens, which can be worn for a long time without making the eyes tired. What's more valuable is that you can often replace various types of lenses, which can support six times magnification. Reading books and newspapers seem to be very relaxed.

  colorless optical glass

   has specific requirements for optical constants, with high transmittance in the visible region, non-selective absorption and coloring Features. According to the size of A-optical lens, it is divided into coronal type and flint type glass, and each type is divided into several types according to the refractive index, and they are arranged in order according to the refractive index. Mostly used as lenses, prisms, mirrors, etc. of telescopes, microscopes, cameras, etc.

  anti-radiation optical glass

   has a large absorption capacity for high-energy radiation, including high-lead glass and CaO -B2O2 system glass, the former can prevent γ-ray and X-ray radiation, the latter can absorb slow neutrons and thermal neutrons, mainly used in nuclear industry, medical field, etc. as shielding and peeping window materials.

  Radiation-resistant optical glass

   Under certain gamma-ray and X-ray irradiation, the visible area focusing mirror transparent The overrate changes less, and the varieties and grades are the same as colorless optical glass, which is used to manufacture optical instruments and peep windows under high-energy radiation.

   colored optical glass

   also known as filter glass . It has selective absorption and transmission properties for specific wavelengths in the ultraviolet, visible and infrared regions. According to the spectral characteristics, it is divided into three types: selective absorption, cut-off and neutral gray; according to the coloring mechanism, it is divided into ion coloring, metal colloid coloring and sulfur selenium There are three types of chemical coloring, which are mainly used in the manufacture of optical filters.

  UV and infrared optical glass

   has a specific optical constant and high transmittance in the ultraviolet or infrared waveband, with Used as ultraviolet and infrared optical instruments or aspheric mirrors as window materials.

  Optical quartz glass

   uses silica as The main components have the characteristics of high temperature resistance, low expansion coefficient, high mechanical strength, good chemical properties, etc.

  , used to manufacture prisms with special requirements for transmission of various wavelengths, Lenses, windows and mirrors, etc.

   In addition, there are also photomasks, liquid crystal display panels, and thin plate glass used in the manufacture of large-scale integrated circuits; when light passes through the glass along the direction of magnetic force, it is polarized Magneto-optical glass with rotating surface; Acousto-optical glass with light diffraction, reflection, convergence or light frequency shift when light passes through glass that transmits ultrasonic waves in a certain direction.

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