High-Mounted Stop Lamp (HMSL) Lens Two-Shot Mold

Optical Structure and Lens Profile
The lens features a slim, elongated profile extending across the vehicle's width. Light distribution areas are continuously arranged along the length, with optical zoning defined during the design stage to ensure uniform illumination and consistent visual appearance across the entire lens, even at extended length.

Dual-Color Molding and Optical Performance
A dual-color injection molding process is used to integrate different color regions into a single component. Clean and stable color boundaries support consistent appearance and optical performance, while reducing the need for secondary processes such as painting or post-assembly, helping maintain batch-to-batch consistency.

Mold Design and Molding Control
To address the challenges of molding a 105 cm long dual-color lens, the mold is optimized in cavity structure, gate positioning, and cooling system layout. Balanced melt flow and controlled molding conditions ensure uniform filling, stable color separation, and minimized warpage across the full length of the lens, supporting reliable mass production.

Application and Integration
This dual-color light distribution lens is suitable for HMSL applications that require consistent light output and integrated appearance over extended lengths. The design supports customization for different vehicle platforms while maintaining mold manufacturability and stable serial production performance.