Yang Sung-Pyo, Kim Jae-Jun, Jang Kyung-Won, Song Weon-Kook, Jeong Ki-Hun
Opt Lett. 2016 Mar 15;41(6):1285-8. doi: 10.1364/OL.41.001285.
This work reports a microprism array (MPA) based compact stereo endoscopic camera with a single image sensor. The MPAs were monolithically fabricated by using two-step photolithography and geometry-guided resist reflow to form an appropriate prism angle for stereo image pair formation. The fabricated MPAs were transferred onto a glass substrate with a UV curable resin replica by using polydimethylsiloxane (PDMS) replica molding and then successfully integrated in front of a single camera module. The stereo endoscopic camera with MPA splits an image into two stereo images and successfully demonstrates the binocular disparities between the stereo image pairs for objects with different distances. This stereo endoscopic camera can serve as a compact and 3D imaging platform for medical, industrial, or military uses.
这项工作报道了一种基于微棱镜阵列（MPA）的紧凑型单图像传感器立体内窥镜相机。通过两步光刻和几何引导的抗蚀剂回流工艺，整体制造了MPA，以形成用于立体图像对形成的合适棱镜角度。使用聚二甲基硅氧烷（PDMS）复制成型将制造的MPA转移到带有紫外线固化树脂复制品的玻璃基板上，然后成功集成到单个相机模块前面。带有MPA的立体内窥镜相机将一幅图像分割成两个立体图像，并成功展示了不同距离物体的立体图像对之间的双目视差。这种立体内窥镜相机可作为医疗、工业或军事用途的紧凑型3D成像平台。
