| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique capable of further surely detaching an object from a retainer, when releasing the retention of the object.SOLUTION: A retainer retains an object with viscosity such as a lens for an eye by pinching the object between two retaining parts. When freeing the object from the pinch of the object and detaching the object from the retainer, the retainer transmits vibration from an ultrasonic generation part 6 to the retaining parts 2a and 2b and vibrates the two retaining parts 2a and 2b, thereby suppressing such a case that the object 100 is left stuck to the retaining parts 2a and 2b. |
