Industry news
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What color is better for lens coating?
If you know anything about eyeglass lenses, you may have heard the terminology – lens coating. But do you know that the color of the lens coating also has an impact on the function? Which color is better? First, let’s understand what lens coating is. Coated lens is the use of optica...Read more -
What is the thickness of the lens? What are the effects of different lens thicknesses on vision?
What is the thickness of the lens? What are the effects of different lens thicknesses on vision? What is the thickness of the lens 1. Degree of myopia The degree of myopia is a major factor in the thickness of the lens. More precisely, the higher the degree of myopia, the thicker the edge of the ...Read more -
What are the materials of glasses?
What are the materials of glasses? There are mainly the following types of materials for glasses lenses : Resin lenses: They are a kind of thermoplastic polymer compound that softens when heated. Resin lenses have the advantages of light weight, comfortable wearing, strong impact resistance, not...Read more -
What is the difference between a spherical lens and an aspheric lens?
The so-called spherical surface and aspherical surface mainly refer to the lens geometry of lenses (various cameras, microscopes, etc.), glasses (including contact lenses), that is, spherical lenses and aspherical lenses. The difference in the geometric shape of the two determines the difference ...Read more -
What is a dome port and why do you use it for surf photography and under water camera housings?
A dome port is a concentric lens that adds an optical element to the camera lens. When the curvature of the dome's inside radius center is situated as close to the nodal point of the lens as possible, the dome port greatly decreases refraction, radial ...Read more
