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The physics of 3D glasses
3D glasses, also known as "stereoscopic glasses," are special glasses that can be used to view 3D images or images. Stereoscopic glasses are divided into many color types, more common is red blue and red blue. The idea is to allow both eyes to see only one of two images ...Read more -
How to choose the correct refractive index of lens?
When selecting the lens, there will be 1.56, 1.61, 1.67, 1.74 and other values to choose, this value refers to the refractive index of the lens. The higher the refractive index of the lens, the thinner the lens is and the harder the lens is. Of course, the higher the ref...Read more -
Introduction and Principle of Photochromic lenses
Sun Sensitive Color Changing Photochromic Pigment Photochromic lenses are produced by mixing photochromic pigments with lens monomer and then injecting it into a mold. Photochromic pigment is a specialty designed powder to change color when exposed to a UV light source, but reacts best to direct ...Read more -
IMAX, DOLBY… What’s the difference
IMAX Not all IMAX are “IMAX LASER”, IMAX Digital VS Laser IMAX has its own process from filming to screening, which guarantees the highest degree of viewing quality. IMAX has a new technology, larger screens, higher sound levels, and more color options. “Standard IMAX” e...Read more -
Lens material, understanding why your lenses are thick or thin
Glass lenses. In the early days of vision correction, all eyeglass lenses were made of glass. The main material for glass lenses is optical glass. The refractive index is higher than that of resin lens, so glass lens is thinner than resin lens in the same power. The refractive index of glass lens...Read more -
China International Optics Fair – Beijing planned for 2022-09-14 to 2022-09-16
The International Optical Industry Exhibition for China commenced in Shanghai in 1985. In 1987, the show was moved to Beijing, endorsed by the Ministry of Foreign Economic Relation and Trade (now Ministry of Commerce) as an official international optical exhibition for the country. As optical ind...Read more -
Which prescription lens type is best for you?
Single Vision Lens VS. Bifocal VS. Progressive single vision lenses offer a single optical correction. This means that they distribute focus evenly over the entire lens, instead of splitting the focus between the top and bottom half, as is the case with bifocals. Single ...Read more
