Roger Bacon
One of the first people credited with inventing glasses was an English friar in the 13th century, Roger Bacon. In his Opus Majus (c. 1266), he outlined the scientific principles of the use of corrective lenses. Some writers believed that monks or friars possessed secret knowledge about glasses, which they later disseminated around the world. Most famously, William Molyneux wrote in his Dioptrica Nova (1692). Unfortunately, there is no evidence that Bacon ever applied his theoretical knowledge of perspective (optics).
The anti-reflection principle of the anti-reflection film
Anti-reflection Coating, known as anti-reflection membrane, is called anti-reflection coating in English, or AR membrane for short. The basis of anti-reflection is the wave and interference of light. The principle is: Two light waves with the same amplitude and the same wavelength are superimposed, then the light wave amplitude is enhanced. The two wavelengths and amplitudes are the same, but the superposition of wavelengths with different wave paths (similar to dislocation) cancels each other out. Therefore, the anti-reflection film plated on the surface of the lens uses this principle to make the reflected light generated by the front and rear surfaces of the film layer interfere with each other, thus canceling each other and achieving the effect of reducing reflection.
Different Type of Lenses: How to Choose
Photochromic lenses: These lenses change from clear to tinted with sunlight. You may no longer need sunglasses although they may not darken in your car if the windshield blocks UV rays. They can be either glasses or plastic.
Polarized sunglasses: Polarized sunglasses can reduce glare from a surface like water, so they are great for sports and driving. But they can make it hard to see the liquid crystal display on your car’s dashboard.
As for different types of lenses, this post has introduced several kinds of. When buying eyeglasses, take these into consideration. If you need a pair of glasses, you can try Koalaeye glasses. They are stylish and come at a cheap price.
Bertoni polarized glasses
Bertoni polarized night vision driving glasses are made of strong, flexible, durable, and ultralight polycarbonate. Yellow polarization increases contrast, improves visual acuity, and filters out blue light. They are great for drivers, cyclists, and winter sports enthusiasts. The driving glasses with polarized yellow lenses block glare from headlights, reduce night driving glare, improve night vision, and improve color clarity and visual clarity. They are ideal for driving in low-light conditions. Most sports sunglasses glasses frames and goggles are made of polycarbonate because of their strong, thermoplastic, lightweight, and impact resistance features.
The frame size has increased.
The larger the frame is, the more obvious it is now, so the edge glare will be more obvious when the lens is polished. It interferes with the visual effect. The frame height of the new glasses must be much larger than the height of the old glasses. Because when you buy big frame glasses, they must find out the pupil height when matching outfits. When you get glasses fitted at the opticians, the opticians don't measure the pupil height. That is, the balance line of the lens should be properly moved up when the lens is processed. If it is not moved up, it cannot be seen clearly.
The frame materials
You should choose the driver's glasses with alloy materials. The glasses made of this material are light and strong, so your ears won't be uncomfortable when you wear them for a long time.
Large round-frame glasses
Big round-frame glasses have large lenses, very dark frames. When you put it on, it makes you look good. Scientific design, let wear natural and comfortable, and you won't have a heavy feeling, with no pressure. When you wear a round frame, there is a kind of retro feeling. Round-frame glasses have an advantage, that is, they can modify the face line, looking small and shapely.
