The wholesale price of pure white glass sheets is generally around 1 yuan, and coated glass sheets are in 5 yuan. Now, due to the decrease in output, the price of some glass plates is slightly raised to 15 yuan. Some high-grade glass lenses, such as 1.90 refractive index, are still very expensive, but few are made in China and are generally imported.
The wholesale price of ordinary white resin film is generally around 4 yuan, the price of ultra-thin resin film of 1.56 is between 7- 15 yuan, the price of aspherical lens is around 10 yuan -25 yuan, and the prices of some brands may be slightly higher.
The price of film basically has nothing to do with whether it is green, blue or yellow. Some places will use films to make small articles and sell them for a few more dollars.
1.6 1 is basically around 50 yuan, 1.67 is around 130 yuan, and 1.74 is around 500 yuan.
Domestic progressive films are basically around 60 yuan, and big brands are a little more expensive.
The price of color-changing resin sheets is around 70 yuan, and it is even lower if you take them in large quantities.
7 yuan, where the dyed piece is not pasted, the paste is 18 yuan.
Astigmatism tablets are generally free. There are more astigmatism films above 200 degrees in 5 yuan, more astigmatism films above 800 degrees in 5 yuan, and lenses above 1000 degrees are more expensive.
Custom lenses may be more expensive.
In addition, don't buy UV-proof 400 resin sheets. Generally, fluorescent powder is added inside, and the surface is opaque to ultraviolet rays. In fact, it is blocking light, which not only affects vision, but also can't see clearly under strong light at night. So, our female boss in the same wholesale market crashed her car.
In addition, the resin lens itself does not absorb ultraviolet rays, so it is necessary to add a film on the resin lens, but so far there is no lens that really blocks all ultraviolet rays. The so-called radiation protection lenses are basically jokes. If you breathe or dip some water into the lens, you will stop them and cheat the children.
No matter what kind of diamond crystal and carbon crystal are blown, including Essilor, because the resin substrate is inherently soft and has little effect, which is not much different from cheating. Just to have a buying point to cheat your money.
The key to your lens is maintenance. If it is well maintained, it can be used for 2 years. If the maintenance is not good, it will affect the vision after one year and should be replaced.
All resin lenses have to be tested before leaving the factory, and the A-grade products have basically gone abroad. At present, all the resin lenses in the world are basically processed in our country. Because this kind of factory is not conducive to environmental protection and is restricted abroad, the cost is high, so they transport the raw materials to China and export them after processing, including all the big brands.
B-class products are generally sold in China, put on different packaging and spend money to buy a license plate, which can be sold as lenses of different grades. The advantage of this is that the same thing can be sold at different prices in different stores. For example, the brand of Wanxin film you bought in a store is Lansha, and a W appears as soon as you inhale in the lens. The real thing, 600 for you.
When I arrived at store B, the same Wanxin film, the trademark is Asadi, and a D appeared on the lens in one breath. The real thing, better than Lansha, sells you 800 yuan.
As for air breathing marks, it is too simple, that is, using electrolyte to generate strong charges, through a screen, the coated lens film is decomposed into one or two layers, and it is formed.
I once made a screen with SB logo, and then printed some mirror bags with Sabel at 30 cents each, and marked the most rubbish C-rated films with this logo. Guess what, Sabel films are very popular in our province, and each 180 yuan is not counter-offer.
Of course, you all know what SB means, but I don't know if you have ever been an SB. Before I entered the business, I was.
This equipment is only 500 yuan, which is basically available in every wholesaler. At present, large manufacturers like Wanxin directly issue labels and bags, and whatever labels you attach is what retailers like.
Up to now, retailers with large sales have understood this. They have their own marking machine, print some mirror bags, and advertise that if we find that the price of our goods is higher than that of other stores, we will pay 20 thousand. Even if it is a lie, the lenses in his shop can't be bought all over the world.
Of course, there are good and bad glasses. If you want money, you must buy Zeiss glasses, especially Zeiss glass glasses. It takes 25 days to order a pair for them to send to Germany for processing and then send it back. I'm sure it will be fine. Please note that it must be sent to Germany for processing. Why? First, it will basically be replaced in China. The more high-end lenses, such as Zeiss and the original factory Yiyi Road, the more open the price, and the retailer's profit is very small, less than 50%. If you are not afraid of trouble and take risks, the profit will be above 95%. Why, so it must be changed? Didn't I tell you that the more big stores bully them, the more they lie to you. If it is marked, anyone can type it. You are an ordinary consumer, why do you say it's fake Zeiss? Identification? Do you know our relationship with our buddies in the Metrology Department of the Technical Supervision Bureau? At least, we made goods together. You are sure to lose. We run an optical shop. Who doesn't have hundreds of thousands of net worth? You still want to break up with me. Can you win?
Second, you have to understand the most basic truth. Glasses are uncomfortable to wear. The quality of glasses only accounts for 1%, 90% depends on the level of optometrists, and the other 9% depends on the skills of optometrists.
For a qualified optometrist, what matters is not education, but experience. I have a bachelor's degree, and in my first year, I ranked first in the city in theoretical assessment. In practice, optometry is also good, but until today, I still made a mistake. This is a process of experience accumulation. Do you dare to call yourself a real optometrist without thousands of glasses? I think 1900 yuan can buy an optometrist's license, hehe. Come on, people in China are bragging. I am still an intermediate optometrist, and basically all the beginners have bought a senior optometrist's license. Isn't it just 800 yuan? Why not just buy an advanced certificate?
It takes at least 45 minutes for a qualified optometrist to calibrate the light for a customer with common myopia and astigmatism, and even several days if it is complicated. But which doctor in the eye hospital will spend so much time on you? I've seen many people feel uncomfortable just making a mirror after examination in an eye hospital. The reason is computer optometry.
Computer optometry is accurate, sometimes, but rarely.
So far, the only feasible objective measurement method is retinoscopy, and others such as computer optometry can only be used as an aid.
There are also shortcomings. There are hundreds of millions of people in China who are nearsighted, but how many optometrists are skilled in optometry? Hehe, so I dare to assert that most nearsighted people in China may not know the truth of their eyesight accurately until their death.
Seeing that many students are now rising from "120 Baidu" to "67 Baidu" step by step, in addition to the current academic pressure, it is definitely related to inaccurate optometry results and unreasonable lens production.
The same pair of lenses, the same optometry results, different lens makers use different tools to make, and the effect is completely different.
At present, all supermarkets are full-automatic machines without molds, and the production accuracy can basically meet the needs of users.
Most mid-range stores use fully automatic machines to make manual templates. Japanese products are ok, and domestic products basically have the phenomenon of running axis and left-right asymmetry. The lenses made are not negative or uncertain. Feel it.
As for the lenses made of handwheels and pliers in the shop, don't think about it. It's strange to think about it. Some people say that this shop is good. I've been doing it for many years, and it's quite comfortable.
Do you know that the human eye is the most regulating organ in the human body? Your eyes have adapted to his glasses, hehe.
Big stores are expensive and expensive. If you want to be accurate, how much is ten times?
If you want to be accurate, especially if there is astigmatism, you must choose a mirror with half-frame drawing, because it is integrally formed and can guarantee that there is no error at all. Punching needs manual assembly, which is easy to deviate, and the whole frame often needs manual edge grinding, which is likely to make mistakes.