Abstract
Acrylic optical parts would be mainly finished by the hand polishing in the case of the small quantity or complicated shape. However, the deterioration of optical performance became problems, since the polishing marks remained due to polishing condition. Therefore, the ultraprecision cutting was applied to the acrylic cover currently finished by the polishing, which is used for the sewer pipe inspection camera. The finishing quality for this optical part was improved by the development of the new clamping jig, the newly designed tool and the proper cutting conditions.