Completion of standard analysis of finish photochromic blended lenses
The completion of finish photochromic blended lenses must meet the quality inspection of spectacle lenses. For example, the test conditions specified in the standard GB10810-2005 are (23±5)°C (mainly applicable to the measurement of various optical parameters).
Advantages and disadvantages of double ASP photochromic lenses
Double ASP color-changing lens is irradiated by ultraviolet rays and short-wave visible light in the sun, the color becomes darker, and the light transmittance decreases
Discoloration of mirror photochromic lenses
Under full light conditions, the mirror photochromic lenses starts from a very small amount of residual background color (the light transmittance is about 90%, which can meet the normal indoor vision of most people), and then changes to different degrees according to their respective compositions Dark color.
Must know to finish single vision knowledge
Optometry glasses must be checked for visual acuity, and those who finish single vision know this. Many years ago, opticians were accustomed to checking monocular vision, and there were few spectacle shops that could check binocular vision. With the progress of the times, people can no longer be satisfied with only looking at monocular vision.
The difference between CB coated lenses and non-coated lenses
If ordinary lenses can be seen clearly, there is no need to add film. If you want to add, the resin lens can be added with anti-reflective film or hard film. Glass lenses generally only add anti-reflective film.