Abstract: The invention discloses a simulating apparatus of facial expression comprising a casing and a facial expression module, wherein the casing has a transparent surface, and the facial expression module is configured in the casing and behind the transparent surface. The facial expression module comprises a plurality of light guiding components, a plurality of light sources, and a control module. The lighting guiding devices is used for making up a plurality of facial patterns; the light sources are configured at one side of the light guiding components, and the light, emitted by the light sources, can be transmitted through the light guiding components to bring the facial patterns a lighting effect; the control module is electrically connected to the light sources for selectively controlling the light sources to emit light.

Abstract: The invention discloses a message playback apparatus. The message playback apparatus includes a receiving module, an analysis module, a storage module, and an output module. The receiving module is used for receiving a plurality of external messages. The analysis module is used for selecting at least one target message from the external messages. The storage module is used for storing the at least one target message. The output module is used for reading out the at least one target message and transforming the at least one target message to an output signal.

Abstract: The invention discloses a lens set adapted to a webcam. The webcam has a first focal length. The lens set according to the invention includes a first lens and a second lens. The first lens is used to refract a light to generate a refracted light substantially parallel to an optical axis of the first lens. The second lens is used to focus the refracted light and project it to the webcam. The combination of the lens set and the webcam has a second focal length smaller than the first focal length.