What are the types of glasses?
Nowadays, there are more and more people who like to wear glasses. It is not difficult to find that many celebrities will wear a pair of glasses specially for posing, and some people will wear glasses to be more bookish. In short, wearing glasses has become a fashion. However, some do choose special functional glasses to correct vision or protect eyes because of myopia, presbyopia, etc. So, what types of glasses are there? Let's share with you the complete collection of glasses types and explain the classification of various glasses in detail. Let's take a look together.
Sunglasses
Sunglasses, also known as sunglasses and sunglasses, are glasses designed to protect the eyes. The lenses are often black or dark to avoid sunlight irritating the eyes. It can also be used as a special accessory for fashionistas to reflect their personal style.
Shopping points:
The outer packaging of regular anti-ultraviolet sunglasses must be marked with anti-ultraviolet level (UV) according to national standards, and there are three types of UVA, UVB, and UV400. Ordinary sunglasses can be selected for short-term entertainment, while polarized sunglasses with more powerful functions are best for long-term driving and entertainment.
Myopia glasses
Myopia glasses mainly use a concave lens with appropriate power, so that the light is properly diverged through the concave lens, and then refracted by the eye to form a clear image on the retina. Myopia glasses have a certain preventive effect on the complications caused by high myopia.
Shopping points:
The quality of myopia glasses is determined by the lenses and the spectacle frames. It is best to choose aspherical lenses for the lenses, which are thinner in thickness, have multiple curved surfaces, and the degree is progressive. Choose lightweight and sturdy materials to lighten the load on the bridge of your nose.
Reading glasses
Reading glasses are a type of convex lens designed to correct the senile degeneration of the lens of the eye. Like myopia glasses, reading glasses have optical indicators stipulated by many national standards, and there are also some special rules of use.
Shopping points:
Before the glasses, should be first optometry, can not blindly buy. Buying ready-made reading glasses should also know their prescription parameters for myopia, and buy them under the guidance of professionals. If you buy a pair of glasses at random, it will not only cause great damage to the eyes, but also aggravate symptoms such as visual fatigue and blurred vision.
Contact lenses
Contact lenses are invisible. It not only has the function of ordinary glasses to correct vision, but also relieves the inconvenience caused by frame glasses, so wearing contact lenses has become a fashion nowadays, but the hygiene of contact lenses is very important.
Shopping points:
The arc of the contact lens should match your eyeball. The thinner the center thickness is, the more comfortable it is, and 0.04 mm is relatively thin. The lower the water content, the less likely the eyes will dry out, because the water content of the lens is high, and the water content of the lens needs to be maintained by tears.
VR glasses
VR glasses, that is, virtual reality head-mounted display devices, use simulation technology and computer graphics human-computer interaction and other technologies to create a brand-new human-computer interaction, which makes every enthusiast experience it with surprise and joy.
Shopping points:
PC VR glasses, connected to a PC or host, are aimed at high-end users and can experience purer VR audio-visual effects, but the price is higher. Mobile VR glasses, connected to mobile phones, suitable for entry-level users, can watch with mobile phones, the price is relatively cheap, but the VR audio-visual effects are relatively general.
3D glasses
3D glasses are accessories needed to match 3D movies or monitors to display 3D effects. They use virtual display technology to project a screen image with a small physical size onto the retina of the eyeball. See the effect on the big screen.
Shopping points:
There are mainly three types of 3D glasses on the market: non-flicker, time division and complementary color. Among them, the 3D glasses with complementary color technology are more suitable for the needs of mass consumers. Not only is the technology mature, but the 3D stereo effect is also very good. More importantly It is the complementary color technology that supports the vast majority of 3D movies on the Internet.
Swimming Goggles
Swimming goggles are a kind of equipment in swimming sports. When used, they are tightly fastened to the eyes. They can see things clearly underwater and prevent the swimming pool water from entering the eyes. Therefore, they have become a must-have item for many swimming enthusiasts. brought a lot of fun.
Shopping points:
In addition to racing goggles, ordinary swimming goggles, myopia swimming goggles, and reading goggles, swimming goggles are functionally distinguished. Good swimming goggles also have high-performance anti-fog, 100% anti-ultraviolet treatment, sealing function, and are effective on the eyes. to protect and prevent injury.
Goggles
Goggles are a kind of glasses that can avoid damage to the eyes caused by radiation light by changing the intensity and spectrum of the transmitted light. This kind of glasses is divided into two categories, one is absorption type, which can absorb light of certain wavelengths, and the other is reflective type, the former is used the most.
Shopping points:
The functions of goggles suitable for different occasions are different. Computer goggles should pay attention to their anti-blue light, anti-radiation, and anti-fatigue effects. Cycling goggles consider dustproof, windproof, and impact resistance. Industrial goggles It is necessary to block infrared and ultraviolet rays well.
More types of glasses
Color changing glasses
Color-changing glasses change their color under the irradiation of appropriate wavelength light, and restore their original color when the light source is removed, also known as photochromic glass or light-colored glass.
Basketball glasses
Basketball glasses are specially designed for short-sighted sports enthusiasts. The corners have good flexibility and are not easy to deform. They can more effectively protect the eyes and the bridge of the nose. The ventilation holes on the side wings make it safer and more comfortable to wear.
Special function glasses
It refers to the specific environmental stage, which can bring certain favorable characteristics to the eyes of a specific group of people. Functional glasses generally include: special for students, special for computers, special for sports, special for driving, smart reading glasses, special mirrors for military and police, etc.
Self-adjusting myopia glasses
Self-adjusting myopia glasses are based on optical principles, can consciously sense the change of the curvature of the lens, and adjust the diopter of the new soft lens accordingly, so that a pair of glasses can be used for a long time without replacement, saving trouble and money.
Rear view mirror glasses
The front is no different from ordinary glasses. After wearing, through the outside of the lens, you can clearly see the situation behind you, so that the detective can easily look ahead and look back, and beware of being anti-tracked. It has a good concealment effect, and has the effect of tracking and anti-tracking.
