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20
2022-08
Resin lens classification
The refractive index of the lens is an important parameter of the lens, generally there are numbers such as 1.49, 1.56, 1.61, 1.67 and so on. These numbers represent the optical refractive index of th...
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18
2022-08
AG resin lens characteristics
Optical properties 1. The surface gloss and smoothness of resin lenses are not inferior to ordinary glass lenses. 2. The refractive index of the resin lens is lower than that of the general glass le...
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18
2022-08
Types of resin lenses
CR-39 This material is the abbreviation of propylene diethylene glycol carbonate, also known as Columbia resin or ADc resin, which is a thermosetting material. Its physical properties are: 1 Refract...
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16
2022-08
Plexiglas design type
Aspherical lens The traditional spherical lens has a distortion phenomenon when looking at objects around the lens, which limits the wearer's field of vision and inevitably has the visual defect of s...
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16
2022-08
Resin lens parameters
refractive index It is the ratio of the transmitted light angle of the lens to the incident light and the sine of the incident light angle. Its value is generally between 1.49-1.74. At the same degre...
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16
2022-08
Advantages and disadvantages of resin lenses
advantage: 1. Light: The density of general resin lenses is 0.83-1.5, while the density of optical glass is 2.27-5.95. 2. Strong impact resistance: The impact resistance of resin lenses is gener...
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14
2022-06
Resin lenses
What he cares about is not only glasses, but also his own personal image. At the same time, more important than learning specific methods is to establish one's correct high-dimensional cognition. Ever...
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14
2022-06
Optical glass lens
What he cares about is not only glasses, but also his own personal image. At the same time, more important than learning specific methods is to establish one's correct high-dimensional cognition. Ever...
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