Optical Box Stepped Portion Thermal Deformation Control

The patent applies thermal expansion principles by designing the optical box with a resin material that has a specific coefficient of thermal expansion. The structure incorporates expansion compensation mechanisms that allow controlled thermal movement, preventing warpage and distortion when temperature changes occur during light scanning operations.

The patent uses composite materials by combining resin with reinforcing fibers or metal inserts in strategic locations. This composite structure maintains the weight and manufacturing advantages of resin while improving thermal conductivity and dimensional stability to reduce thermal deformation.

The patent introduces thermal management intermediaries such as heat sinks, thermal conductive materials, and cooling channels between the heat-generating components (motor, IC chip) and the optical box structure. These intermediaries act as thermal mediators that transfer heat away from critical areas, preventing temperature-induced distortion during continuous operation.

The patent implements dynamic thermal management by designing the optical box with flexible mounting structures and adjustable components that can compensate for thermal expansion in real-time. The system adapts to temperature changes during continuous scanning, maintaining optical alignment despite thermal variations.

The patent applies pneumatic principles by designing air flow channels and ventilation paths within the optical box that guide the hot air current generated by the high-speed rotating polygon mirror away from the deflector area. This prevents heat accumulation and maintains uniform temperature distribution during high-speed scanning.

The patent uses curved surfaces and rounded edges in the optical box design around the deflector area to facilitate smooth air flow. The curved geometry prevents stagnant zones where hot air could accumulate, enabling better thermal management during high-speed operation.