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如何挑选好镜片?材料了解一下
作者:
查尔斯顿眼镜(国际)连锁加盟机构
发布时间:
2019-10-18
浏览量:
1935

                                材料是衡量产品好坏的重要标准之一,

                                           材料的属性与工艺,

                                  对产品的质量起到决定性的作用。


                           

                                           随着技术的不断提高,

                                    镜片的材料种类也越来越多,


                                 那么材料到底如何影响镜片的品质呢?

                                       接下来,小编为您细细解析

                                            好材料到底有多重要。




 
  
                                           在各种生活工作场景中,

                                             眼镜太重经常下滑,

                                             造成了很多的不便,

                                          【墙都不扶,只扶你】

                                             头太小、鼻不挺?

                                           除了这些不可抗因素,

                             我们能做的就是换一副更轻的镜片了。

                                      材料决定了镜片的折射率,

                                      明月镜片常见的折射率有:

                                   1.56、1.60、1.67、1.71、1.74,

                                    相同度数下,镜片折射率越高,

                                    使入射光发生折射的能力越强,

                                             镜片从而也越薄,

                                              重量也就越轻,

                                          佩戴起来会更舒适。 

                     

                                    (测量内容为边缘厚度,单位:mm)

                                                  
                                     折射率不仅决定了镜片的厚薄,

                                          同样也影响了阿贝数,

                                       阿贝数越大,色散就越小,

                                                    反之,

                                     阿贝数越小,则色散就越大,

                                        其成像的清晰度就越差。

                                                 但一般来说,

                                          折射率越高色散越大,

                           所以往往镜片的轻薄和清晰度不能兼顾,

                                        现在不用为此担心啦, 


                    



                                               

                                                     光照进来,

                                    世界就成了我们看到的美好模样,


                              所以透光率也是影响镜片品质的因素之一。


                                                如果光线太暗,


                                        视物太久会造成视疲劳,


                                             不利于眼部健康,


                                  好的材料能有效降低光线损失,


                                      透光效果好,清晰通透,


                                       为您提供更明亮的视觉。 


                                  
                                             




                        
                            


                               紫外线是波长为10nm-380nm的光线,

                                  过多的紫外线会对人体造成伤害,

                                               尤其是眼部,

                                      严重时甚至可导致失明。

                           此时镜片的防紫外线功能就尤为重要,

                          能有效隔绝紫外线且不影响可见光的通过,

                              保护视力的同时,也不影响视觉效果。 

                      
                        


                   



 

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