In the discussion of “What is the optical refractive index of an eye lens?” When it comes to this problem, we first need to understand the physical concept of optical refractive index, ...
China
Relevant standards: mainly based on GB 10810.3-2006 “Glasses lenses and related glasses products Part 3: Transmission specifications and measurement methods” and GB/T 14214-2003 &...
Effect of refractive index on visual acuity in the aged
Lens thickness
For the elderly with high myopia or farsightedness, it is more appropriate to choose a lens with a high refractive index. The ...
Metal material
Titanium alloy
Features: It has the advantages of light weight, high strength, corrosion resistance, not easy to deformation, and small irritation to the skin, suitable for long-term...
With the continuous recovery of the global economy and the continuous changes in consumption concepts, eyeglasses are no longer just a tool to adjust vision. Sunglasses have become an importan...
Polarizers are manufactured according to the principle of polarization of light. We know that when the sun shines on the road or water, it directly irritates the eyes, making the eyes feel...
