The main object of the present invention is to provide a color filter for a transflective type color liquid crystal display which is easily produced and capable of displaying the same color tone with both of a reflecting light and a transmitting light, and shows light scattering in a reflective light region. The protractor may include a face having angle designations thereon and a set of opposed and extending flanges projecting from said face. Frequent pulsing is expected to recover parent and fragment time correlation with an accuracy of approximately 1 Th, in spite of using much wider mass window in the first MS. An adjusting screw is rotatably extended through the slide and threadedly coupled to the adjusting block so that movement of the slide in the vertical direction causes movement of the adjusting block and the connecting device in the vertical direction.