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Detailed explanation of the parts of glass frames

March 4th, 2010

Modern technology has brought us diversified materials and styles of glass frames. You may choose a durable and nearly indestructible nylon glass frame if you are sports active, or you can have a designer glass frame if you are fashion conscious. The present glass frames industry has generously offered both function and beauty for the human being. Here are the detailed explanations of all the parts of the glass frame.

“Frame front” is the front part of the whole glass frames that includes the part for holding the lenses and the middle bridge for connecting the two rims.

“Rims” or “eye wires” are the two round or square parts of the glass frame with grooves for inserting the holding the lenses.

“Bridge” is the front middle part of glass frames which connects the two lenses as a whole unit. Some old fashioned glass frame has double bridges with another one at the top. This reinforcing bridge strengthens the glass frames, making it firmer.

“End pieces” are the two end parts of the glass frame front normally with hinges on the two ends for attaching the two temples.

‘Hinges” are the two parts attached to the two end pieces of the glass frames front which connect the front and temples. Some fashion glasses don’t have hinges.

“Temples” are the two arms hooking on the two ears enabling the whole glass frame to perch still on the nose.

“Nose pads” are the two plastic or silicone pads that touch the nose. For plastic glass frames, the nose pads are directly connected to the rim; for metal glass frame, the nose pads are at the end of the pad arms—– the two thin curved wires.

“Pad arms” are only available on the metal glass frames, which are two piece of metal wires attaching the nose pads to the frame.

“Top bar” is the reinforcing bridge which can only be seen on the double bridge glass frame.

“Temple tips” is the end part of the temple touching the ears. For metal glass frames, the temple tips are apparent which can be seen as the plastic covers over the metal tips. For plastic glass frame, the temple tips are just the extended part of the temple hooking at the ears.

“Mountings” or ‘rimless frames” are the three-piece mountings which include the two temples and the bridge. Strong lenses are usually used to attach the temples and the bridge by screws to form the shape of the eyeglasses.

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How to buy a high quality magnifying glass

March 4th, 2010

Magnifying glass, an optical instrument creating a magnified visual image of an object, plays a fairly important role in kinds of researches and people’s daily lives. However, few know how to purchase a high quality magnifying glass. Here are several points as follows.

Firstly, magnifying glasses of high quality are often made from optical glasses or upscale resin pellets with high transparency and low dispersion. Such magnifying glasses create clearer and brighter images with small color differences. Secondly, the mirror surface of a high quality magnifying glass is aspheric. In this way, the imaging within sight is ensured to be of fine definition and low distortion. For the high expense of lens grinding, inferior magnifying glasses are spherical, which get low definition on the brink. Thirdly, a superior magnifying glass should be covered with a film of reflection reducing coating on the lens, so as to on one hand protect magnifying glass from scratches, and on the other hand increase imaging definition. Usually, magnifying glasses with films are of 10% elevated transparencies. Fourthly, judge a magnifying glass by its frame. For durability, excellent frames are usually made from metal frames with certain thickness or plastic frames of high tenacity. Last but not the least, high quality magnifying glasses are marked with explicit names and addresses of manufacturers and detailed brand information, while inferior ones just simply mark the producing places.

In conclusion, points on how to buy a high quality magnifying glass are briefly illustrated above, which are hoped to be useful for you when you are in want of a magnifying glass.

Related glasses: #SD2267 #SD2295 #VOV5107 #VOV5101 #OK2064L

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Eyewear lens technologies

March 3rd, 2010

Thanks to the rapid development of eyewear lens technologies, there more and more eyewear lenses options. These technologies are applied in all kinds of glasses, such as fashion eyeglasses, designer eyeglasses, prescription eyeglasses, non-prescription eyeglasses, sport eyeglasses and sunglasses. Following is a brief introduction of various eyewear lens technologies, which are commonly used.

Glass and plastic are the most widely used materials in eyewear lens. But these materials may cause an unpleasant appearance if one’s prescription is heavy. New materials are introduced to eyewear lenses, such as high-index eyewear lens, polycarbonate lens, aspheric lens, photochromic lens, trivex lens etc… Unlike traditional materials, eyewear lenses made of these modern materials are usually lighter and thinner.

Correction technologies classify eyewear lenses into several categories: single vision eyewear lens, bifocal lens, trifocal lens and progressive lens. These eyewear lenses integrate different vision correction functions and eliminate the need for separate glasses. Manufacturers can also make multifocal lenses without a line between different sections.

Coating is another important technology used in eyewear lens. Coatings technologies include scratch-resistant coating, UV treatment, anti-reflective coating and mirror coating. These coatings improve the surface of eyewear lenses. Each of them also has special effect. UV treatment blocks harmful UV rays, anti-reflective coating reduce glare and scratch-resistant coating makes lenses more robust.

Modern eyewear lens usually takes advantages of tints. This technology offers colorful lenses. Eyewear lenses with different tints also have special vision functions. Some tints enhance contrast of the vision and some improve depth perception.

Eyewear lens technologies provide you with a quite variety of choices.

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Fashionable red glasses

March 2nd, 2010

Red glasses are simply referred to glasses with red frames or red tinted lenses or a combination of them. Whether in which form, red eyeglasses flatter the special tastes of a certain group of people who love red particularly. Red glasses are more about fashions. While most people buying regular eyeglasses for vision correction, some people just keep red eyeglasses for charming looks. Today, red glasses are available from many famous brands. Ray Ban provides a wide variety of red glasses including red rimless glasses and glasses with marble red frame or shiny red frame. These red glasses simply fall into the warm colored type.

Actually, the frames of red eyeglasses include some variations, such as dark red and pink. Sometimes, red glasses do not have complete red frames. Only the lens frame is red or only the temples are red. They are also called red glasses. The frame of red eyeglasses can be made of most of the common materials, such as metal and plastic. Metal red glasses are mostly painted into red while plastic red eyeglasses are made of artificial composite plastic. Red glasses can also be glasses with red tinted lenses. The red and pink tints usually help red eyeglasses sharpen contrast in partly cloudy and sunny conditions. Of course, these tints are light.

Red glasses have created such a special type of fashion so that they are not exclusively for women. Some gentlemen even wear red eyeglasses, although they look a little strange.

Related pages – Green Eyeglasses, Blue eyeglasses, Red sunglasses, White eyeglass frames

#SDSB2080 #SDSB2058 #SDSB2064 #SDSB6026 #SDSB0867

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Introduction of Prescription Safety Glasses

March 2nd, 2010

Nowadays, it has been a routine life for millions of people worldwide to wear prescription safety glasses. To some extent, prescription safety glasses do a great favor to people for preventing injuries as it is estimated that there are 1000 eye injuries everyday in American workplaces which results in the huge cost of $300 million per year. And these prescription safety glasses are certified by the American National Standards Institute (ANSI) and set forth by the U.S. Occupational Safety and Health Administration (OSHA) to ensure they actually supply the specified protection. Among these prescription safety glasses, safety reading glasses are a typical type.

Safety reading glasses are usually favored by the aging people. As we know, when people turn older, even adults with perfect vision, their vision will become blurred. However, the safety reading glasses can provide you with both protection and visual acuity. No matter you do some indoor work or do some welding, painting or construction jobs outdoor, safety reading glasses can supply you with the eye protection you need. No doubt these safety reading glasses must be purchased at various prescription levels. Just like other prescription safety glasses, safety reading glasses must be ANSI compliant. Another feature for safety reading glasses is that they are radiation-resistant and have side shields.

There are lots of online stores for prescription safety glasses available and some of them can supply online optician services for your prescription safety glasses, so you don’t need to go out for eye exams. Besides, a wide variety of frames and lenses for prescription safety glasses accessible on the market for your choice. And it is suggested to select scratch-resistant prescription safety glasses since they can help you away from eye strains caused by the blurry vision and their lifetime is longer.

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The various functions of clear glasses

March 1st, 2010

Eyeglasses are considered as an essential fashion accessory in today’s world, so for those people without vision problems, they would like to choose the clear glasses to show their personality.

Generally speaking, clear eyeglasses can have several functions in your daily life. Clear glasses will do a great help to keep the dust or bug away from your eyes, especially when you are running or driving in the open air. Clear glasses can block the harmful UV rays. Eyes are quite fragile if exposing to the sun in a long time, so clear glasses with anti-ultraviolet coatings is a necessity if you are on beach or somewhere like that. Clear glasses are fashionable people’s favorite accessory. For the clear glasses can invert your styles in an easy way, either to be intellectuality or to be sexy. Clear eyeglasses are extremely important for some special careers, such as the doctors in the radiology department; they must wear the clear glasses with high lead to effectively bar the X-rays. With the widely used of computers, clear glasses are developed into anti-radiation. This function sounds exciting especially for the ladies who are afraid of computer radiation very much.

In fact, though the clear eyeglasses have no prescription at all, you should also pay attention to the quality and function of the clear eyeglasses. The improper clear glasses may do damages to your good eye vision. So if you want to get a pair of clear glasses, please go to the authorized shop, and check carefully about the craftsmanship and color of the lenses.

A kind reminder: if not very necessarily, I suggest you not wear clear eyeglasses, just enjoy your good eyes with a wide vision. The nearsighted or farsighted men must be envious of your eyes free from eyeglasses.

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Various aviator glasses frames

March 1st, 2010

Since the aviator glasses expanded its business from the military area to the public, all kinds of people have considered it as the most successful one. Though Ray Ban, Scheyden and Serengeti are aviator glasses manufacturers, Ray Ban is the one that is most widely recognized. It is the creator of aviator glasses, but another important reason is that it provides the most varieties, especially in frame structures.

The first type: all parts of aviator glasses frames are wide and flat, including the two temples and the lens rims. The nose pads of these aviator glasses are integrated to the lens frame. Another way to say: without pad arms. These kind of aviator glasses look like classic and formal.

The second type: the temples are wide and flat while the lens frame is round and thin. The nose pads of these aviator glasses are connected to the lens frame through pad arms. These kind of aviator glasses are lighter and more related to fashions such as shutter shades.

The third type: besides their normal features including thin and round temples and lens frame, the pair of lens frame of these kind of aviator glasses is linked with two thin bridges (a double bridge) that are nearly in parallel.

The fourth type: aviator glasses equipped with a triple bridge. A third and much longer bridge is added to the third type with its feet reach the upper center of the lens frame. And the third bridge is also thicker than the other two.

The materials of the first two types of aviator glasses (with wide frames) are always plastic while that of the latter two are usually made of metal.

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Types of prescription glasses

February 17th, 2010

Most of the corrective eyeglasses should be checked and prescribed by eye doctors, which are called prescription glasses. There are 4 types of prescription glasses which are designed and made to correct vision based on different circumstances.

The mostly used prescription glasses are for single vision. Most of eyeglasses wearers fit in this category. Single myopia, hyperopia and astigmatism only needs single correction. This group of prescription glasses is the easiest portion with the least return and complaints.

The second type is called double focal of bifocal prescription glasses. Bifocals were invented by Benjamin Franklin. He fused the farsighted lenses with the nearsighted one, thus he freed himself from interchanging two prescription glasses frequently. This type of prescription glasses are used by patients of presbyopia who are generally over 40s and are synchronously near- and far-sighted. Bifocal prescription glasses have two pairs of optical centers, which are equal to two pairs of eyeglasses.

Trifocal prescription glasses mean there are three pairs of optical centers. Its basic function is similar to bifocal prescription glasses except that trifocal possesses the center focal point which is for intermediate vision for a smoother transit from near to far.

The fourth is called progressive prescription glasses. This is also called no-line bifocals, for use by presbyopia patients to have a better look, as bifocal prescription glasses give other people a sign of being “old”!

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Lightweight titanium frames

February 16th, 2010

A large group of gentlemen love titanium frames nowadays. Titanium glasses are made of titanium. This material has some special features that make titanium frames attractive. Titanium glasses are the ideal choice for people who like active lifestyles and those with heavy prescription. Titanium glasses will never cause any allergy.

The material of titanium frames is a chemical element that has a low density. But it is strong, corrosion-resistant and silver-colored. Titanium even has been used for everything from Apollo space capsules to heart valves.

Many manufacturers provide titanium frames and beta-titanium frames. The most attractive feature of titanium glasses is lightness. Titanium glasses are also durable, strong and hypoallergenic. A variety of colors can be applied to titanium frames, such as black, orange and red. In fact, not all of the titanium frames are made of pure titanium. Some titanium frames come from an alloy combined by titanium and some other metals including copper. But these titanium alloy frames are cheaper than pure titanium frames.

Many online glasses stores offer various titanium glasses that suit a wide range of needs. You can add your personal taste and coating to titanium glasses. At Firmoo.com, customers can get titanium frames at the price 20% to 60% lower than regular retail price. Firmoo.com also provides Virtual Eyeglasses Try-On System for glasses trying before buying.

Titanium glasses are classic and become the symbol of status.

Related pages – Titanium Frames for Men

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Eyeglass lens with different materials

February 9th, 2010

With the rapid advancement of technology, eyeglass lens is made of various materials. Some of the materials used in eyeglass lenses are traditional such as glasses and plastic; others are modern and newly invented. The eyeglass lenses introduced here include both of these materials and also involve some coating technologies.

A particular plastic material is used to form Hi-index eyeglass lens. This material refracts light in a special way. Eyeglass lenses of this kind are usually thinner than ordinary ones thus bring lightness. This kind of eyeglass lens helps people with high prescription out of thick and heavy lenses.

The special plastic used in polycarbonate eyeglass lens is more impact-resistant than standard plastic. This feature makes polycarbonate eyeglass lenses the good choice for active sports participants, those work in an environment which makes their eyeglasses easily scratched and mischievous children.

Aspheric eyeglass lens is designed with a flatter peripheral curvature than ordinary spherical eyeglass lens. These kind of lenses have much larger usable portion than standard lens by reducing the amount of bulging out. Aspheric eyeglass lenses are also much lighter and help reduce the image distortion greatly.

Photochromic eyeglass lens can automatically adjust to different light conditions. These eyeglass lenses have a special chemical coating that will be tinted darkened when exposed to sunlight and become clear indoors. They eliminate the need for a separate prescription sunglasses. Photochromic eyeglass lens can be made with either plastic or glass.

In addition to the above four popular eyeglass lens, there are lenses made of other materials including trivex lenses, anti-reflective coating lenses and polarized lenses.

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