Microlens array with customized sag profile

• Main Authors: REMEZ RODOLFO, GILBOA NICOLA, AKERMAN RONEN, LYONS KENTON, SMITH, SCOTT, T
• Format: Patent
• Language: Chinese; English
• Published: 29.07.2022
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS

An optical device includes a first emitter array disposed on a substrate and configured to emit respective beams of optical radiation in a direction perpendicular to the substrate. A second microlens array is positioned on the substrate in alignment with a respective light beam of the emitter, with a respective sag profile that varies over an area of the substrate. The second array includes at least a first microlens in a central region of the substrate and a second microlens in a peripheral region of the substrate such that the first microlens has a respective first power and the second microlens has a respective second power that is less than the first power. 一种光学设备包括第一发射器阵列，其设置在基板上并且被配置为在垂直于基板的方向上发射光学辐射的相应光束。第二微透镜阵列被定位在基板上与发射器的相应光束对准，具有在基板的区域上变化的相应垂度轮廓。第二阵列至少包括在基板的中心区域中的第一微透镜和在基板的周边区域中的第二微透镜，使得第一微透镜具有相应的第一焦度，而第二微透镜具有相应的第二焦度，第二焦度小于第一焦度。