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Zeiss Garui series 1.56 refractive index aspheric lenses-myopia 650 degrees astigmatism 0 degrees

In addition, the ZEISS Garui series of 56 refractive index aspherical lenses also have a variety of other advantages. The aspheric design is a highlight, which can better adapt to the eye shapes and pupil distances of different users, thereby reducing visual distortion and vertigo. In addition, this lens also has an anti-ultraviolet function, which can effectively protect eyes from ultraviolet damage and ensure that users can remain safe during outdoor activities.

The ZEISS Garui series lenses adopt a refractive index of 56 and an aspheric design, which is especially suitable for users with 650 degrees myopia. This lens is made of PC material and its hardness is more than ten times higher than that of ordinary resin lenses. It has excellent impact resistance, and the lens is light and safe. The ice blue HD film gives the lens a light blue tone. Although it does not have blue light protection, it provides the advantages of high light transmittance and easy cleaning, ensuring a clear and realistic visual experience.

The Zeiss Garui series of 56 refractive index aspheric lenses are specially designed for consumers with 650 degrees of myopia and 200 degrees of astigmatism. They are made of PC lens material and have extremely high hardness and impact resistance. They are suitable for safety glasses. Ice Blue HD film gives the lens a light blue tone, high light transmittance and easy cleaning, bringing a clear visual experience. The aspheric design is an important feature of this lens, which effectively reduces edge blurring and is suitable for various face shapes, making the visual experience more comfortable.

What is the refractive index of 1.56 for glasses?

1. The refractive index of 56 selected when matching glasses refers to the optical refractive power of the lens material and belongs to the basic refractive index category in resin lenses. Characteristics of 56 refractive index lens: Applicable power: Suitable for wearers with myopia or farsightedness between-00D and +00D and astigmatism not exceeding-00D. It can meet the correction needs of low to moderate ametropia.

2. Lenses with a refractive index of 50 have a lower price and a higher Abbe number (better dispersion control), but the thickness is slightly higher than that of 56 models. They are suitable for teenagers with limited budgets and smaller frame size. The visual experience is more natural.

3. Generally, numbers such as 456674 marked on the lens represent the refractive index of the lens. The higher the refractive index, the thinner the thickness of the lens. For myopia within 500 degrees, a lens with a refractive index of 56 is usually chosen. The refractive index of myopia lenses can be used as a reference for selecting lenses. If the power exceeds 500 degrees, you can choose a 56 aspheric lens or a lens with a refractive index of 61.

4. Refractive index lenses are suitable for people with low degree myopia below 300 degrees and are a very cost-effective choice. Relationship between refractive index and lens thickness The higher the refractive index of the lens, the stronger the ability to deflect light, and the lens can be made thinner and lighter under the same degree. However, the higher the refractive index, the better. It will also affect the Abbe number (dispersion coefficient). The higher the refractive index, the lower the Abbe number, which may lead to rainbow-like dispersion at the edge of the object.

1.56 What is the material of aspheric lenses?

1. Aspherical lens refers to an aspheric design lens with a refractive index of 56.

2. From a material perspective, 553 aspherical lenses usually use CR-39 material, while 56 aspherical lenses mostly use ordinary resin materials. CR-39 material is known for its high refractive index and stability, so the price is relatively high. At the same time, CR-39 material is more durable due to its smaller shrinkage and excellent thermal stability. In terms of light transmission, 553 aspheric lenses are generally better than 56 aspheric lenses.

3. Different materials. The lenses of the aspheric surface 6 are made of high-end resin or optical glass with high refractive index, which can better refract light and provide a clearer field of view, while the eyeglass lenses of the aspheric surface 56 are made of ordinary resin. Different refractive index. Aspherical 6 lenses have a higher refractive index, which means that they provide better light control when refracting light, so they can better correct vision problems.

4. Essilor Diamond Crystal Smart Cleaning series consists of two materials: 61 aspheric surface and 56 aspheric surface. The 56 aspheric surface is made of resin and has high light transmittance, while the 61 aspheric surface is made of PC universe sheets. This material is similar to bulletproof glass, but the light transmittance is relatively low. The refractive index of the PC universe sheet is 59, while the Ishimei series, which has a refractive index of 56 and 67, is thinner and flatter.

5. The lens also has an anti-ultraviolet function, which effectively protects the eyes from ultraviolet damage and reduces the risk of eye diseases such as cataracts. In addition, the lenses have anti-fog function to maintain clear vision even in humid environments. In summary, the Zeiss Garui Series 56 refractive index aspherical lenses are high-performance, high-quality lenses that integrate advanced refractive technology, PC lens materials, ice blue HD film and aspherical design to provide an excellent visual experience.

1.56 How many degrees does the lens fit?

The power of lens fitting is determined by the degree of refractive error (myopia, hyperopia, astigmatism, etc.) obtained by the individual's optometry. 56 belongs to medium and low refractive index lenses. The usual range of suitable powers is approximately 50 degrees to 600 degrees for myopia (i.e.-0.50D to-00D) and 50 degrees to +00D for farsightedness. When the degree of astigmatism is high, it is generally necessary to customize special astigmatic lenses, and the adaptation range of different brands may vary slightly.

If the myopia degree is close to 600 degrees, the edge of the lens will be relatively thick. Choosing a frame with a smaller size can improve the visual effect of the edge thickness. Clarity performance: The Abbe number of the 56 lens is about 32-35, and the dispersion control performance is moderate, which is better than high-refractive index lenses such as 674. It has less color shift during imaging, better visual clarity and wearing comfort, and will be used daily. No obvious visual distortion or color deviation will occur.

Thickness performance: Under the premise of the same frame size and lens matching parameters, the thickness of 56 refractive index lenses is between 50 and 60 and above refractive index lenses, which is 10% to 15% thinner than 50 lenses, but about 10% thicker than 60 lenses. When wearing by people with myopia within 600 degrees, the lens edge thickness is thin and the overall appearance is natural; when it is 600 to 800 degrees, the lens edge will be significantly thicker, which has a certain impact on the aesthetics of wearing.

The higher the refractive index compared with other refractive indexes, the thinner and lighter the lens will be under the same power. The refractive index of 56 is a basic style with high cost performance. If the degree exceeds 400 degrees, the refractive index of 60 or 67 will be a better choice, which can significantly reduce the thickness and weight of the lens, but the price will also increase accordingly. The final thickness of the lens is also affected by factors such as pupil distance and mirror curvature. A professional optometrist will provide the most appropriate advice based on your actual parameters.

Lens power needs to be determined through professional optometry, including specific myopia, hyperopia, and astigmatism parameters. Lenses with the same refractive index can adapt to ametropia requirements of different degrees. 56 Refractive index is one of the mainstream resin lens categories with outstanding cost performance and is usually suitable for people with ametropia within 600 degrees; for people with high ametropia exceeding 600 degrees, it is generally recommended to choose lenses with refractive index of 60 and above to achieve thinner and thinner wearing effect.

Aspherical lenses are suitable for people with low to moderate powers. Generally speaking, it is suitable for people with myopia between 0 and 400 degrees. For people with mild myopia, such as around 100 degrees, the 56 aspheric lens can provide clear visual effects, while the lens is relatively thin and will not put an excessive burden on the wearer.

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