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CN109313383A 用于聚焦激光投射器的系统、设备和方法 无效 - 撤回

用于聚焦激光投射器的系统、设备和方法
摘要：
描述了用于聚焦激光投射器的系统、设备和方法。激光投射器包括N≥1个激光二极管，其中每个激光二极管发射具有发散度的激光。每个激光二极管与对应主透镜或准直透镜配对，以至少减小所述激光二极管产生的所述激光的发散度。在所述激光的(多个)光路中的(多个)主透镜下游，单个专用次透镜或会聚透镜将所述激光会聚到焦点上。通过在所述次透镜或会聚透镜处而不是在所述(多个)主透镜或准直透镜处发起会聚所述激光，实现了在基于激光投射的可穿戴式平视显示器中尤其有利的许多益处。
摘要（英）：

Systems, devices, and methods for focusing laser projectors are described. A laser projector includes N >= 1 laser diodes, each of which emits laser light having a divergence. Each laser diode is paired with a respective primary or collimation lens to at least reduce a divergence of the laser light that the laser diode produces. Downstream from the primary lens(es) in the optical path(s) of the laser light, a single dedicated secondary or convergence lens converges the laser light to a focus. By initiating the convergence of the laser light at the secondary or convergence lens as opposed to atthe primary or collimation lens(es), numerous benefits that are particularly advantageous in laser projection-based wearable heads-up displays are realized.

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