Spectacle lenses (optical path difference control structure lenses)

Abstract

1. The name of this design product: Spectacle lenses (lenses with optical path difference control structure). 2. Purpose of the product of this design: Spectacle lenses used to delay the progression of myopia and correct vision. 3. The key design point of this design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the key points of the design: main view. 5. Other explanations required: The A-A sectional view is the A-A sectional view in the main view; the B-B sectional view is the B-B sectional view in the main view; the enlarged view of part C is the enlarged view of the part C in the main view; the enlarged view of part D is the enlarged view of the part D in the B-B sectional view; the enlarged view of part E is the enlarged view of the part E in the A-A sectional view.

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