Vehicle lamp optical assembly with primary and secondary optical units

A vehicle lamp optical assembly, comprising:

• a primary optical unit or a primary optical unit group having a plurality of primary optical units arranged side by side, wherein the primary optical unit comprises a light entrance portion and a light guide portion, the light guide portion has a light entrance portion mounting surface and a primary light emission surface, the light entrance portion mounting surface is provided with at least one light entrance portion, the light entrance portion is configured to enable incident light to be converged and emitted to the light guide portion, and the light guide portion is configured to be capable of guiding the incident light to be emitted from the primary light emission surface;
• and
• a secondary optical unit, wherein the secondary optical unit has a secondary light emission surface and a secondary light entrance surface corresponding to the primary light emission surface, and the secondary light emission surface is a narrow and long smooth curved surface;
• and
• wherein the primary optical unit is a low-beam inflection-point primary optical unit, a low-beam widening primary optical unit or a high-beam primary optical unit, and the primary optical unit group comprises at least one or more of the low-beam inflection-point primary optical units, the low-beam widening primary optical units and the high-beam primary optical units.