A bicycle steering prompt system includes a direction light set, a prompt light set and a controller. The prompt light set includes at least two projection lights, and each of the at least two projection lights projecting at least one image upon being activated. The controller is formed a control relationship with the direction light set and the prompt light set, and the controller triggers the prompt light set when triggering the direction light to give a direction prompt, so that one of the at least two projection lights is activated at a side same as the direction light set is triggered. When in implementation of the invention, each of the at least two projection lights projects at least one image on a ground around a rider to give a prompt of a traveling direction where the rider is about to go to people surrounding the rider.

Disclosed is an illumination device for use with spoked wheels, such as bicycle wheels, wherein the wheel includes a hub portion, a plurality of spokes, and a rim portion. The illumination device includes a power pack, at least one adaptor body, and at least one attachment portion. The power pack having at least one wire, a flexible button cap, a body housing, and circuit board with a switch. The at least one wire including a plurality of light sources. The at least one attachment portion including a clip portion providing for the installation of the at least one adaptor body to the bicycle spokes. The illumination device also includes a holder for the installation of the power pack to the bicycle wheel. Further, the illumination device may include a tubular body located in the internal cavity of the at least one adaptor body.

An illuminated bike horn includes a ring attached to a mouth of the bike horn. The illuminated bike horn further includes a light source and sound sensor coupled between the bike horn and the ring. The light source provides illumination in response to the bike horn emitting sound generated in response to movement of a diaphragm coupled to a bell of the bike horn. The light source is a light emitting diode (LED) configured to provide illumination in a plurality of colors. The LED provides illumination for a predetermined period of time during and after the bike horn emits sound. The light source and sound sensor are powered by batteries. The batteries, light source, and sound sensor are secured to bay of a back side of the ring between the bay and a cover. The illuminated bike horn further includes a clamp to attach the bike horn to a handlebar.

An illumination device, for vehicle headlamps, includes a light source, a shutter device, and a projection lens. The shutter device has a first shutter body with a first shutter plane including a first shutter edge, and a second shutter body with a second shutter plane including a second shutter edge. The first and second shutter bodies are arranged such that their shutter edges build a common shutter edge, which generates a cut-off line of a light distribution. The shutter device is configured to transition the first and second shutter edges between (i) aligned positions wherein the common shutter edge contributes to generate a straight cut-off line, and (ii) non-aligned positions wherein the common shutter edge contributes to generate a cut-off line deviating from a straight cut-off line. The transition is performed by rotation of the first and/or second shutter body about a common rotation axis by a rotation device.