Modern medical technology focuses on developing therapies that cause as little discomfort to patients as possible. Endoscopes that allow minimally invasive surgery, make an important contribution to this, for example, in laparoscopy. Especially during medical interventions, the demand for focused and detailed image information is of the highest priority in order to achieve the best possible chances of success.
In chip-on-the-tip endoscopes, the image information is transmitted via an image sensor in the tip of the endoscope. However, previous chip-on-the-tip endoscopes use fixed-focus optics that can only display one object gap properly. If the object is at a different distance, the image loses focus. By integrating a miniature drive, it could become possible to achieve variable focusing, so that the object can always be displayed optimally in sharp focus. However, with diameters of no more than 10 mm, the potential installation space is very small. Nevertheless, it is not impossible to find suitable drives for the zoom and focus lens.