What issues should be paid attention to in the design of digital display lenses?

1.The digital display lens is limited by the shape, and can only be used for flat or single-curved modeling, in which the printing of the flat surface is preferred;

2. The lens material should be selected: Arcylic acrylic; comprehensive consideration of light transmittance, surface hardness, wear resistance and impact resistance.

3. Lens thickness of flat digital display: 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm;

4. The convex shape of the lens should be beveled or rounded to avoid the residual medicine.

5.The draft angle of the outer edge of the lens is at least 30, and the parting line (PartingLine) is placed at the bottom of the printing surface;

6. The lens should avoid the design of through holes below Φ0.7 and above Φ1.0, so as not to cause potion after HardCoating

Residue.

7. The thickness of the lens and the lower cover sticker and the surface is reserved for adhesive: ≥0.15mm; it must have sufficient viscosity to prevent high temperature and humidity from opening

gum.

8. Injection molding should pay attention to the location of the gate as far as possible inside, and must leak, and the gate residual should be controlled within 0.05mm.

9. Pay attention to the installation method to prevent the lens from being squeezed, causing the focal length to change and the image

Blurred.

10. Pay attention to anti-wear during installation.

11. Pay attention to the design of anti-rotation structure when printing fonts.

12. Pay attention to the problems when doing the steaming effect:

A. The back side should be as flat as possible, because the steaming degree is the overall steaming degree of the back side, and the subsequent printing needs to retain the steaming effect to remove the visible area and other printing areas. If it is a curved surface or a stepped surface, it will be impossible to print later.

B. The steaming effect is easy to cause static electricity, because the steaming is a conductive metal. To solve this problem: add a black circle to the inner circle. Prevent the introduction of static electricity.

13. Injection molding In order to control the surface gap, avoid the gap between the shell and the LENS drafting direction is too large. Draft angle 2 ° can be made to 1.5 ° under special circumstances