Showing papers on "Light pillar published in 2012"

Mixed light pillar with condensing function and light-emitting diode (LED) spotlight thereof

Abstract: The utility model provides a mixed light pillar with condensing function and a light-emitting diode (LED) spotlight thereof, wherein a columnar light guide body is arranged on the mixed light pillar, a light inlet surface and a light outlet surface are arranged on the columnar light guide body, and the light outlet surface is of a micro-lens array which consists of a plurality of micro-lens. An LED module group containing multicolor LED light sources is arranged on one side of the light inlet surface of the mixed light pillar, light rays sent from the LED module group are sent out after being reflected many times in a light guide pillar, and LED light rays in all colors are fully mixed. The light outlet surface plays the role of collimating and condensing light rays sent from the mixed light pillar, thereby being capable of controlling output light energy in a smaller angle range, and improving whole lighting effect of spotlights.

Solar clustered condensation control system

Abstract: The utility model relates to a solar clustered condensation control system. The system comprises a mirror array for tracking the sun in real time and a solar heat collector for receiving clustered light pillars; the mirror array is provided with M row*N column condenser units; each condenser unit comprises a paraboloid condenser of which the bottom is provided with a through hole and an upper reflector; a middle first reflector is arranged in the direction of a light path penetrating through each through hole, a middle second reflector is arranged in the direction of a light path reflected by each middle first reflector, and the upper M*N light pillars can be condensed to form a dense balanced light pillar through the middle first reflectors and the middle second reflectors; and a lower reflector capable of reflecting the dense balanced light pillar to the solar heat collector is arranged in the light path direction of the dense balanced light pillar. The solar clustered condensation control system reduces control points by clustering the light pillars of the mirror array, is easy to install and maintain and practical, and enables a single integrated circuit to replace a complex computer control system.

Tuning fork vibration demonstration instrument

Abstract: The invention relates to a tuning fork vibration demonstration instrument. A light and thin reflecting mirror is stuck at the upper end of one branch of a tuning fork, an inclination angle is formed between the reflecting mirror and the tuning fork, and a semiconductor laser tube is fixedly arranged on a support. The working principle of the tuning fork vibration demonstration instrument is that laser is thrown at the reflecting mirror, and a reflected light pot locates on a wall; when the tuning fork dose not vibrate, the light spot becomes a small round dot; and when the tuning fork vibrates, as a result of persistence of vision, the light spot becomes a long strip light pillar. By using the instrument, not only can sounds made during the vibration of the tuning fork be heard, but also the vibration of the tuning fork can be clearly seen.