･ Speed Using the conventional laser measurement technology, we measure straight, pitch, yaw, roll, horizontal straight and vertical straight aspect at the same time. ·simple Because it is easy to set up, it is easy for users of other interferometer systems to introduce. In addition, human errors are reduced by automatic sign detection and graphical alignment adjustment. ･ High reliability By directly measuring all errors, you can check the measurement results while testing. ･ High abilities Roll measurement is possible in any direction with a unique optical roll measurement system.