Zotye D70 Tail Lamp Photometric Lens

Challenge:
The main challenge was to achieve a bright and uniform mirror-like surface on the tail lamp photometric lens. The visible surface required strict quality control, as any flow marks, weld lines, sink marks, scratches, polishing marks, or uneven gloss could affect the final appearance. Since this part also needs to maintain stable optical performance, surface clarity and molding stability were especially important.

Solution:
We applied high-precision machining and fine polishing to the mold surface to meet the mirror-finish requirement. The gate layout and cooling system were optimized to improve material flow and reduce surface defects. During mold trials, we fine-tuned the mold temperature, material temperature, injection speed, holding pressure, and cooling time to ensure a stable high-gloss appearance, consistent mirror-like surface quality, and reliable optical performance.