Today, Cheap 1.56 Finish Photochromic Progressive Brown lens manufacturers will analyze the main cost structure of photochromic lenses, see where expensive lenses are expensive, and what kind of Cheap 1.56 Finish Photochromic Progressive Brown lens in china are considered "value".The first is the organic color-changing material of the Cheap 1.56 Finish Photochromic Progressive Brown lens. This is not difficult to understand. The synthesis of the color-changing material is very difficult, and it is the most important part of the cost allocation in the lens. The color-changing material of the Cheap 1.56 Finish Photochromic Progressive Brown lens in china directly determines the color change speed and color change durability. If the color change speed is increased by 10%, the cost of color-changing materials may increase by 100%.
Second is the cosmetic quality of the Cheap 1.56 Finish Photochromic Progressive Brown lens. For consumers, the appearance quality is a hidden existence, because generally, no one will take a magnifying glass to carefully ponder the subtle defects of the lens. However, consumers of the Cheap 1.56 Finish Photochromic Progressive Brown lens in china are a huge group, and there may be 1% of people who are particularly picky about the quality of lens appearance. In order to meet the needs of this 1% population, the product qualification rate may drop by 10%, and the cost will rise sharply.