Iizuka Keigo
Appl Opt. 2013 Nov 20;52(33):7904-11. doi: 10.1364/AO.52.007904.
The depth of focus of the latest-model "Chip-on-the-Tip" laparoscopes is limited to 10 cm. The proposed omnifocus laparoscope stretches this depth of focus to 160 cm. The proposed laparoscope is omnifocus, which means that all spots in the picture are in focus, not just certain designated spots as in autofocus devices. This is important because the entire scene needs to be focused during surgery. The omnifocus laparoscope is equipped with an array of color video cameras, each focused at a different distance. The distance information from the laparoscopic profilometer is used to generate a single omnifocused image.
最新款“尖端芯片”腹腔镜的聚焦深度限制为10厘米。所提出的全聚焦腹腔镜将该聚焦深度扩展至160厘米。所提出的腹腔镜是全聚焦的,这意味着图像中的所有点都是清晰聚焦的,而不仅仅是像自动聚焦设备那样的某些指定点。这很重要,因为手术过程中整个场景都需要清晰聚焦。全聚焦腹腔镜配备了一系列彩色摄像机,每个摄像机聚焦在不同的距离。来自腹腔镜轮廓仪的距离信息用于生成单个全聚焦图像。