What kind of light is blue light?
Blue light is light of a certain wavelength. In the sunlight, including red light, orange light, yellow light, green light, blue light, indigo light, and purple light, blue light occupies a place. The wavelength of blue light is less than that of red light but greater than purple light. The energy intensity is also different, and the blue light is relatively less strong than red light. People must rely on the 'macula' to perceive light. The macula is a 'pearl' hidden in the fundus and the most important photosensitive part of the fundus. The macula can look at objects, generate electrical signals, and transmit the signals to the brain so that people can see the things in front of them clearly. Strong light shines directly on the eyes, and it is likely to cause damage to the macular structure at once.
Metal frames have many benefits.
It has a certain hardness, good softness, good elasticity, wear resistance, corrosion resistance, gloss, and good color and luster.?For example, for the high nickel alloy frame, nickel content reaches more than 80%. It mainly has nickel-chromium alloy, manganese nickel alloy. High nickel alloy’s corrosion resistance is better. In addition, the material elasticity is good.?Titanium frame has a high melting point, light material, strong corrosion resistance, and solid electroplating. The eyeglass frame that uses pure titanium is deft and comfortable, more in accord with human body engineering. And flexibility is good, long-term use is not out of shape. And they do not fade, do not cause skin allergy, relatively durable.? Memory titanium alloy frame refers to a new alloy made up of nickel and titanium according to the atomic ratio of 1:1.?Memory titanium is more resistant to corrosion than high nickel alloys but less resistant than pure titanium and β-titanium.
Different Type of Lenses: How to Choose
High-index lenses: These lenses are thinner and lighter than CR-39 plastic lenses because they have a higher index of refraction and may also have a lower specific gravity.
Trivex lenses: Trivex lenses are made from a newer plastic that’s similar to polycarbonate lenses. They are lightweight thin, and impact-resistant.
Aspheric lenses: Aspheric lenses have various degrees of curvature, which means they can be thinner and flatter so you can use a much larger portion of the surface.
Competition in visual marketing
The offline experience of consumers is pretty important. Store space design, planning and layout, and commodity display form are important parts of visual marketing. If all three can be balanced and matched, it will drive sales growth.
How Does Photophobia Glasses Work?
The visible light spectrum is made up of all the colors in the rainbow. Red light waves sit to the left; as you move to the right, there is orange, yellow, green, blue. And violet light, with other colors in between. The light resides along the visible light spectrum according to how long their wavelengths of energy are. UV light has the shortest wavelength and red has the longest.
However, UV light carries a significant amount of energy that can damage and burn our eyes. So, the indoor sunglasses for light sensitivity are designed to filter out and block blue-green wavelengths, fluorescent light, LED lighting, bright sunlight and other reflective lights that may affect the eyes.
After wearing photophobia glasses, the number of migraines may be reduced besides the eye damage. So, not only can they protect your eyes from the sunlight, but also can relieve other symptoms.
Hence, if you need a pair of light sensitivity glasses, Koalaeye glasses are recommended. They come in stylish and at a cheap price.
How Do Adjustable Glasses Work?
Adjustable glasses are featured with the fluid-filled lens technology that lets you adjust the power of the lens based on the correction level you need. You can twist the dial until you can see clearly. So, adjustable glasses are also called dial vision glasses.
Each of the lenses on adjustable glasses has a membrane that moves outward or inward based on how much fluid the lens contains. The liquid comes from a small syringe connected to each arm of the glasses. You move the dial to pump fluid in or out of the lens. As fluid enters the lens, the lens’s power increases. This can correct farsightedness. Pumping the fluid out can correct nearsightedness.
The principle of adjustable glasses is the same as vision ability. You change the physical shape of the lens just as the physical shape of the eyeball so as to correct your vision.
TERAISE Polarized Clip-on Sunglasses Over Prescription Glasses
The use of a yellow night vision clip helps reduce the glare of other vehicles' lights effect, and a nearsighted night vision clip can improve the safety factor of night driving. You can wear myopic prescription night vision glasses for a small amount of money, saving at least $350 / euro. It only weighs 4 grams. With a strongly polarized lens, the glare can be weakened, simple, and beautiful. On cloudy, rainy, or foggy nights, it's safer to wear a night vision clip. They have 18 months of quality assurance and comprehensive customer service.
