Abstract: An illuminator includes a hologram label and light-emitting diodes. The hologram label includes a reflective face. The light-emitting diodes are located near the hologram label. The light-emitting diodes are used to emit incident light onto the reflective face of the hologram label that reflects the incident light and hence provides reflected light. The incident light is colorless, and the reflected light is in at least one color.

Abstract: An illuminator includes a hologram label and light-emitting diodes. The hologram label includes a reflective face. The light-emitting diodes are located near the hologram label. The light-emitting diodes are used to emit incident light onto the reflective face of the hologram label that reflects the incident light and hence provides reflected light. The incident light is colorless, and the reflected light is in at least one color.

Abstract: A kaleidoscope has a motor assembly, a reflection assembly, a lighting assembly, a mirror assembly, a lens assembly, and a lens kit. The reflection assembly has a reflection object with a pattern. The reflection object is rotatable and driven by the motor assembly. The lighting assembly has an illuminator. The light of the illuminator radiates to the reflection object. The pattern of the reflection object is reflected by the mirror assembly, and then is projected by the lens assembly and the lens kit to produce a stereogram. The lens assembly and the lens kit cause a phase difference and project the pattern of the reflection object outside of the kaleidoscope to provide a novel and diverse optical experience.

Abstract: A kaleidoscope has a main body, a tubular cover and an object cell. The tubular cover is rotatably connected with an end of the main body. The object cell is securely mounted in the tubular cover and has a scrap box, a background box, multiple scraps, multiple colored beads, a strip unit and a background. The scraps and the colored beads are movably mounted or disposed in the scrap box. The strip unit is mounted in the scrap box. The background is mounted in the background box. Movements of and between the moveable scraps and colored beads create color combinations and patterns.