Showing papers on "Light pillar published in 2010"

Sun-following tracking probe

Abstract: The utility model relates to a sun-following tracking probe, belonging to the field of solar energy utilization. The existing tracking probe has the disadvantages of excessively complex structure andhigh cost and is not practical. The utility model has the technical scheme that the tracking probe comprises a base and a light pillar installed on the base, wherein photosensitive elements are installed on the base or/and the light pillar. Horizontal orientation detection and sun altitude detection utilize light pillar projection: when the axis of the light pillar is in misalign with sunrays, thelight pillar can generate projection on the photosensitive element in the direction of backlighting so that the characteristic of electric conduction of the photosensitive element on the backlightingface and the photosensitive element on the light receiving face can be changed, and a horizontal tracking motor and (or) an altitude angle tracking motor are driven after circuit comparison amplification so as to cause a photovoltaic array to rotate towards the light receiving direction until two opposite faces both receive light. The tracking probe has the advantages of simple structure, comprehensive functions and high cost performance.

Particle Nature of Light and Light Speed

Abstract: What is the nature of light?Particle or wave?How fast is light speed?These are all basic questions of physics.From points of philosophy and observation,demonstrates that the nature of light is a kind of particle,many photon's behavior is of similar characteristics of wave.Light reflection,diffusion,deflection and transmission are all phenomenon of matter's attraction,absorption and re-emission.Until now,there is no way to measure light speed accurately.For star light speed relative to the earth,the more the star light near the earth,the close it equal the speed of light radiated by a source fixed on the earth relative to the earth.Physics field is composed with space and mini particles.

Asymmetrical automatic waveguide member with graded index and device thereof

Abstract: The invention relates to an asymmetrical automatic waveguide member with a graded index and a device thereof. The member is an automatic waveguide structure for improving medium fi->j and reducing the generation of fj->i according to the energy conservation law, the Stephen-Boltzmann law, the concept of an angular coefficient f and a waveguide heat exchange rule that f has no interchangeability. The structure is openly put in a single heat source, and the surface radiation heat exchange is not balanced to form a positive pole and a negative pole of the automatic waveguide to rectify alternating current quantum. The member can aggregate low-density diffusion into a high-density energy flow, transfer heat from a low-temperature object to a high-temperature object and be used for manufacturing refrigerators, igloos, air conditioners, thermostates, green houses, thermostatic clothes, heat pipes, and the like and cooking, driving a heat engine and generating electricity and also has the properties which are like laser but better than laser. Spontaneous radiation of an incoherent light source can be focused into a small light spot and output in the form of a thin light pillar, and a divergence angle is small so as to form light intensity exceeding that of the laser. The radiation carrying information can be transmitted and received in the form of the thin light pillar, and the high-density energy flow can be transmitted and received in a long distance.

On the angular structure of the brightness of light pillars produced by ground-based point sources during snowfalls

Abstract: The results of experiments on the observation of light pillars from point light sources during weak snowfalls are considered. The approximations of the angular profiles for different viewing angles are obtained. The two-scale character of the light pillar angular structure is revealed.

Reverse type light-harvesting device

Abstract: The utility model relates to a reverse type light-harvesting device, comprising an outer sleeve, a reflector, a top cover and a light source; the reflector is arranged at the bottom part of the outersleeve and has an opening which is toward to the to the top part, the light source is connected with a locating base by a connecting piece, the irradiating direction of the light source is opposite tothe opening direction of the reflector, and the locating base is connected with the outer sleeve by a bracket. In the utility model, the reflector leads light intensity emitted by a high-angle diffused type light source to be condensed and reflected, the diffused type light source and a light-harvesting device are reversely installed axially, the light intensity emitted from the top part of the light source is justly opposite to the light reflecting surface of the reflector, the light intensity within an effective angle at the top part of the light source is irradiated out along the forward direction after being condensed and reflected by a parabolic light reflecting surface of the reflector, so as to form a cylindrical light pillar and achieve the purposes of improving lighting effect and realizing uniform focusing and light harvesting; in addition, the reverse type light-harvesting device has simple structure and convenient maintenance, and can be widely applied to various lamps.

Adaptive keyboard light pillar

Abstract: An input device includes a display device configured to selectively modulate light to produce a changeable display image. The input device also includes a keyboard assembly disposed over the display device and including one or more depressible keys. Each depressible key includes a keycap having a light transmissive window; a light pillar between the keycap and the display device; and a light-turning layer between the light pillar and the keycap.

Method for forming outer layer portion of light pillar and light pillar using the same

Abstract: PURPOSE: A method for forming an outer layer part of a light pillar which secures the visibility and the light pillar using the same are provided to prevent damage to the light pillar due to the external force. CONSTITUTION: A light pillar(100) is prepared. A glue layer(200) including crusher dust(302) is formed on the exterior of the light pillar. A first elastic layer(300) made of an elastic material is formed on the glue layer. A first resilient material(301) is heated with the constant temperature and changed to the liquid. The first resilient material with the crusher dust is mixed and poured in a frame to be cured.