Methods and systems for creating Campbell diagram displays for illustrating vibration characteristics of a moving apparatus, such as a rotary machine, are provided. In a particular embodiment, the device includes a transferable overlay for placement over a display screen of the system. The color conversion layer includes a number of quantum dot blocks corresponding to the sub-pixels to convert the backlight to the lights with three-primary colors. The compressible inner structure can include a plurality of arcuate segments that join to form a ring in the fully compressed state or a sinusoidal ring having a varying radial dimension. A light-shielding portion which shields light in the peripheral portion where the optical intensity distribution decreases of the phase modulator is formed on the laser beam incident surface or exit surface of the phase shifter, thereby shielding the peripheral light in the irradiation surface of the incident laser beam. In order to obtain a simple coupling member which can be influenced over wide areas concerning the transmission properties, the connecting parts are made of fibrous composite plastic and the elastomeric annular body is molded onto the ring disks of the connecting parts.