DIY sunglasses. Sunglasses: how to make the right choice? Suitable for square face shape
Glasses are not only a decoration, but also a necessity for many people with vision problems. Their most fragile parts are the arms, which often break. We present to your attention a method through which you can now easily make glasses at home.
Necessary materials
Dark veneer for frame (2 pieces 50x30)
Light veneer for interlayer (3 pieces 50x30)
Wooden block (approximately 50x30 cm)
Epoxy resin
Vise
Sandpaper
Spring clips (2 pieces)
Jigsaw
Varnish
If you look closely at the frame of the glasses, you will see that it is slightly curved. To make the frame look like this, you need to draw a slightly curved straight line on a wooden block and carefully divide it into two parts along the line using a saw. You will get two bars: one concave on one side, and the other convex. All these parts are well sanded and sealed with tape.
Make a frame from veneer. To do this, 3 light pieces of veneer are laid together one on top of the other, and dark ones on top and bottom.
All parts are well glued with epoxy resin.
Thus, the future frame will be layered.
To prevent the layered veneer from coming apart, you should place it in a bag and wrap it tightly with tape. Then lay the veneer in parts of the timber and clamp it in a vice. Allow to dry completely.
Excess glue should be removed and sanded sandpaper from all sides.
Place the old glasses frame against the veneer and secure with spring clips. It is necessary to trace all the contours of the glasses with a pencil.
Using a jigsaw, cut out a new frame along the pencil lines.
The holes into which the glasses will be inserted should be sanded.
The temples of the glasses can be made from any small wooden block, 1-1.5 cm thick. To do this, you need to trace the old temples with a pencil and cut along the contours with an electric jigsaw.
By personal fitting, determine the angle of inclination of the arms in relation to the frame of the glasses. Then mark with a pencil, draw a line and cut with a jigsaw.
It is necessary to make locks that will connect the temples and frame of the glasses. To do this, draw the convex parts of the lock on the arms and the holes for them on the frame. Using a hacksaw, carefully cut.
Then connect the arms to the frame.
Coat all wooden parts with varnish.
Show business stars and top models do not part with dark glasses, not only because this stylish and fashionable accessory allows you to “disengage” yourself from prying eyes or neglect cosmetics. They know very well: sunglasses- one of the best means for prevention " crow's feet"and wrinkles between the eyebrows. And doctors never tire of repeating that the eyes need to be protected from the sun and burns even more than the skin.
1. Keep in mind: it is a misconception that glasses with plastic lenses are worse
Today, most manufacturers prefer plastic; such glasses are lighter, more practical, and plastic glass The quality is absolutely not inferior to glass. And sometimes they even surpass them, since it is more difficult to apply special filters to the glass that protect the eyes from UVA and UVB rays. By the way, the statement that any glass glasses do not transmit ultraviolet radiation is nothing more than a myth. Glass itself only blocks part of the ultraviolet rays; in order for UV protection to be complete, additional coatings must be applied to it.
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5 secrets for choosing the perfect sunglasses
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2. Before purchasing, ask for a passport!
To choose good sunglasses, be sure to look at the passport (certificate) for them. It must indicate the most important characteristics points, namely: what wavelength and what percentage ultraviolet radiation they block. Good sunglasses should block ultraviolet wavelengths of at least 400 nm, which are the most dangerous to the eyes. There are also standards for light transmission, depending on which all sunglasses are divided into five categories.
Zero (look for the number “0”) are very light, only slightly darkened glasses for cloudy weather, transmitting 80-100% of the light. The first (number “1”) is slightly tinted glasses for partly cloudy weather; such glasses are well suited for early spring or mid-autumn in mid-latitudes. Second category (number “2”) – glasses medium degree shades that are suitable for sunny weather in middle lane, but for the south they are rather weak. The third and most common category (number “3”) is glasses for summer, the beach, and bright sun. These are the ones we usually take with us on vacation. Glasses of the fourth group (number 4") transmit less than 8-10% of light; they are recommended for very strong sun, for example, high in the mountains, or at sea near the equator. In addition, glasses for bright sunshine should have polarized lenses that dampen the sun's glare on the surface of water and snow.
The easiest way to tell if your glasses are dark enough or not is how comfortable you feel wearing them. If you squint in the sun, despite wearing dark glasses, it means the darkness is too weak. And keep in mind: the color and tone of the glass does not affect UV protection in any way: high-quality lenses of group zero can block even 100% of ultraviolet radiation (the international standard is at least 95%).
3. Don't skimp on sunglasses
When choosing sunglasses, you need to remember that this is not an accessory, but, first of all, a means of protecting your eyes from ultraviolet radiation. And it depends on the quality of the glass how good this protection will be, not to mention the fact that bad glass will inevitably negatively affect vision. An independent study of one of the specialized magazines published in the USA and dedicated to optics showed that none of the several hundred models that street vendors sell for an average of $5-15 meet quality standards, and bright stickers from the “100% UV protection” series - nothing more than a fiction. Saving on sunglasses means saving on health, which is fraught with blurred vision, cataracts, corneal or retinal burns, and other eye damage caused by ultraviolet radiation. Darkening on the glass causes the pupil to dilate and, if UV filters are not applied to the lenses, it penetrates into the eyes increased amount ultraviolet. So it's better not to wear it at all sunglasses than to wear, but bad.
Buy glasses only from specialized points of sale, shops or opticians. Even if it is not an expensive model, it will be of high quality. Besides, if you don’t chase trendy models, good sunglasses are an accessory that you buy for several years. Well, if you doubt the quality and origin of the glasses you have already purchased, many optical stores have special devices on which you can check their light transmission and degree of UV protection.
4. Pay attention to color
The eyes feel most comfortable in glasses with lenses of neutral colors - gray, gray-brown, gray-green. But doctors do not recommend wearing pink, blue, orange and, especially, yellow glasses for a long time - your eyes will quickly get tired. There is also an opinion that these colors overstimulate the retina and cause so-called optical stress; the eyes become very strained and get tired quickly. But dim greenish lenses, on the contrary, calm the nerves and can even reduce eye pressure. In the opinion of many ophthalmologists, nearsighted people are most comfortable in lenses of brownish shades, while farsighted people are most comfortable in grayish and greenish ones. Learn more about how various colors affect our nervous system and health, the program experts will tell you "In the shape of".
5. Size matters too!
How larger size lenses - the better the sunglasses will protect the eyes and skin around them from the rays of the sun, so the fashion for large, massive glasses one can only rejoice. Glasses with massive temple bases also provide good protection from side effects. sun rays(this is especially important if you are driving, relaxing in the mountains or at sea, where there is a lot of sun).
How to choose the right sunglasses? The principle of http://site/ here is the same as when choosing any new thing you need - you should like glasses, be of high quality, be comfortable, have an adequate price, and make you even more attractive.
Depending on some factors (scarcity of funds, indifference to things, lack of taste...) these four criteria may be placed in a different order, or even decreased by a couple of units. However, the fourth point - “to make you even more attractive” should remain unchanged, or even move to first place. In the end, you can save up money, put up with small flaws in terms of comfort (well, you can’t sleep in them!), but you simply have to look 100% better in new sunglasses!
To make you understand that buying glasses is not a waste matter, I’ll tell you a story. , I urgently needed to buy myself sunglasses, because I drowned mine while swimming in the lake. Somehow I didn’t manage to get to the store, and so I had to look for glasses on sale, inexpensive, of course, since the hawker trade is focused on middle-class and lower-class goods.
As a seller, I liked a long and thin, like a pole, black man, who for some reason had the fewest buyers. Deciding to support his feeble trade, I quickly bargained for international language gestures quite nice glasses slightly elongated top edge forms that can turn any face into a dragonfly muzzle. Which is what ultimately happened.
For some reason, the fashionable dragonfly glasses that season looked on my thin and slightly elongated face like a saddle on a cow, and like a big saddle on a small cow. The first one I took with the new glasses reminded me of photographs of survivors plastic surgery women whose entire top part faces. You could just as easily buy ski goggles– these also left only the tip of the nose and lips free. But, unlike the ski ones, they also kept sliding down every minute, squeezing the nostrils, as in synchronized swimming.
This lesson cost me only a few dollars, but I remembered it for a long time. You can’t make purchases on the run unless you plan to throw them in the first trash bin you come across. Smart people it's been run in for a long time necessary recommendations– what type of face is suitable for what glasses.
The size of glasses should also be measured against your build, since very large glasses are small face They look pretty awkward. However, the same as the other way around - small glasses on a wide face. Under no circumstances should they slide onto the tip of the nose or squeeze the bridge of the nose, leaving furrows that do not disappear for two hours.
I will not write a scientific treatise on this matter, and you do not need to study this problem as such. Just look carefully at the pictures and try to get the gist. This will be quite enough.
If this season you have not yet managed to purchase new sunglasses or managed to drown, lose or sit on them - take a look at the showcase of fashionable sunglasses. Surely, you can choose something suitable here.
There are not many things in the world that have remained virtually unchanged since their invention. Glasses are one such item.
Glasses were apparently invented in Italy in the 13th century. The estimated year of invention is 1284, and Salvino D’Armate (Italian) is considered to be the creator of the first glasses, although there is no documentary evidence for this data. Since then, glasses have become a part of many people's lives. The production of glasses has changed significantly. So I began to wonder how they make glasses for vision now. For permission to film the production process, I turned to the management of the Chameleon company, who agreed to meet me and gave the go-ahead for filming...
Just as any theater begins with a hanger, so any production begins with a warehouse.
This is exactly what blanks for lenses look like, which after processing will take up space in the frame
Previously, mostly glass was used for lenses (in the first glasses they used quartz and crystal because they could not yet obtain high-quality glass), now high-quality plastic is increasingly used. Plastic is lighter, cheaper and has more processing capabilities
Now the choice of lenses is very large - there are tinted and gradient lenses, coated lenses, etc. and so on. For every taste and color
But let's return to the production chain. After you have chosen the frame for the lenses and the lenses themselves. The manufacturing process begins
The Dioptrimeter comes into play first.
Lensmeter Tomey TL-100 (Japan) allows you to measure any lens; the device records the refractive power of the glass and expresses it quantitatively - in diopters
In the process of high-precision scanning of the frame, absolutely all parameters are determined: shape, base curvature, as well as the profile of the bevel groove in the frame, which, in the end, is a decisive factor in calculating the size of the finished lens. Using the high-precision frame scanning feature, the finished lens after processing will perfectly fit the frame, without any additional “fitting”.
After scanning the frame, the master places the lens blank into the centering chamber, where it is completely automatic. The system will determine the optical center of the lens, its refraction, cylinder axis, progressive lens marking or bifocal segment. .
The outline of the scanned frame and the lens in the centering chamber are clearly visible on the monitor
After receiving all the necessary data, the lens is placed in a processing (turning) machine, which operates on the basis of an EAS cycle.
Thanks to this cycle, the machine automatically selects the clamping force of the lens and the force of its pressure on the wheels during the entire processing cycle.
Processing time is no more than 1 minute
and we receive a finished lens, machined to the size of the frame.
This is how glasses are made literally in 10-20 minutes. Most of the time is spent on choosing suitable frames and lenses because... The choice of these products is very, very large...
Your eyesight is sharp.
Thank you for your attention. I hope you enjoyed it. I express my gratitude to the management of the Chameleon Optical Salons Chain company for the opportunity to conduct the shooting.
Sunglasses is not only a stylish accessory, but also an important wardrobe item that will save your eyes from UV rays. What qualities should such glasses have?
The first thing you need to pay attention to when purchasing is protection from UVA (wavelengths 320-400 nm) and UVB (wavelengths 290-320 nm). This information must be indicated on the glasses label. Two options are allowed: “UVA and UVB protection” or “UVA 400 protection”.
Do not buy glasses from unverified places. The sellers there will not be able to guarantee you protection. But don't rush to overpay for glasses popular brands: Even the most budget accessories have UVA and UVB protection.
The color of the lenses is of particular importance. The darkness must be at least 75%. It is best to choose yellow and orange lenses. Blue and purple are a dubious option. According to ophthalmologists, lenses of this color provide less protection. But it is worth noting that the fluctuations in indicators are not that great. Therefore, if you absolutely do not like warm glass sunny shades, feel free to take a different color.
By the way, if you wear contact lenses, then we can please you: most of them already include UVA and UVB filters.
Here are some more tips that will help you when choosing glasses.
- For driving, buy glasses with plastic lenses. In the event of an accident, they are less dangerous.
- Photochromic accessories are a great option for those who wear corrective glasses all the time. The lenses darken when exposed to sunlight. Therefore, in your room regular glasses, and in the sun - sun protection.
- Buy a special cloth for cleaning glass - do not use the edge of a T-shirt for this.
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