Measuring tape set

Abstract

1. Name of the product of this design: measuring ruler kit. 2. Purpose of the product of this design: used for vision testing or vision training, and also used as a measuring tool. Each measuring ruler can be used alone or in combination. 3. Key design points of this design product: shape. 4. The picture or photo that best illustrates the key design points: main view of kit 1. 5. Other situations that need to be explained Kit description: Kit 1 is a measuring ruler for myopia testing, Kit 2 is a measuring ruler for hyperopia testing, Kit 3 is a universal vision testing ruler, Kits 4 and 5 are set plate vision testing rulers, Kit 6 is a protractor vision training ruler, and Kit 7 is a matching cross cylinder. 6. Other situations that need to be explained Other explanations: Kits 1 to 7 are made of transparent materials as a whole; the left view reference diagram and top view reference diagram of Kits 1 to 6, and the three-dimensional reference diagram of Kit 7 follow the product opaque drawing method and only show the outer contour of the product.

Images