Abstract: An illumination device includes a cover, a heat-dissipation module, and a plurality of light emitting units. The heat-dissipation module includes a main body and a mounting plate connected to the main body. The mounting plate is received in the interior of the illumination device. The light emitting units are mounted on the mounting plate and opposite to the cover. Light from the light emitting unit is transmitted through the cover.

Abstract: A non-imaging lens includes a transparent member, a first Fresnel lens portion and a second Fresnel lens portion. The transparent member includes a first surface and a second surface. The first Fresnel lens portion includes a plurality of first saw-toothed protrusions concentrically defined on the first surface. The second Fresnel lens portion includes a plurality of second saw-toothed protrusions concentrically defined on the first surface. The second saw-toothed protrusions are defined around the first saw-toothed protrusions. Each of radii of curvature of the second saw-toothed protrusions is different from each of radii of curvature of the first saw-toothed protrusions.

Abstract: A non-imaging lens includes a transparent member, a conical protrusion and a plurality of annular protrusions. The transparent member includes a first surface and a second surface. The first surface and the second surface are planar. The conical protrusion is defined on the first surface. The annular protrusions are concentrically defined on the first surface around the conical protrusion. Each of cross-sections of the annular protrusions approximately forms a right-angled triangle. The triangle includes a first angle, a second angle, a bottom surface, a first surface and a second surface. The first angle exceeds the second angle. The first angle is less than or equal to 90°. The bottom surfaces of the triangles increase in turn outwards from the conical protrusion.

Abstract: A non-imaging lens includes a transparent member, a conical protrusion, and a plurality of annular protrusions. The transparent member includes a first surface and a second surface. The first surface and the second surface are planar. The conical protrusion is defined on the first surface of the transparent member. The annular protrusions are concentrically defined on the first surface around the conical protrusion. Each of cross-sections of the annular protrusions approximately forms a right triangle. Each of the triangles includes a first angle, a second angle, a bottom surface, a first surface and a second surface. The first angle exceeds the second angle. The first angle is less than or equal to 90°. The second angles increase in turn outwards from the conical protrusion. The width of the bottom surface is equal to the radius of the conical protrusion.

Abstract: An illumination device includes a cover, a heat-dissipation module, and a plurality of light emitting units. The heat-dissipation module includes a main body and a mounting plate connected to the main body. The mounting plate is received in the interior of the illumination device. The light emitting units are mounted on the mounting plate and opposite to the cover. Light from the light emitting unit is transmitted through the cover.

Abstract: An exemplary street lamp system includes a monitoring center, a first street lamp, a first sensor, a first signal receiving unit, a first signal sending unit, and a first power management unit. The monitoring center is configured for sending a monitoring signal. The first sensor is configured for detecting an operating state of the first street lamp and generating a first detection signal. The first signal receiving unit is configured for receiving the monitoring signal. The first signal sending unit selectively operates in a power-on state where the first signal sending unit sends a feedback signal to the monitoring center based on the monitoring signal, or a power-off state where the first signal sending unit does not send the feedback signal to the monitoring center. The first power management unit is configured for switching the first signal sending unit to the power-off state in response to the first detection signal.

Abstract: An exemplary apparatus for supplying road conditions includes a detector, an information processing device, and a transmission device. The detector configured to detect current road conditions. The information processing device communicatively coupled to the detector for receiving information on the current road conditions. The information processing device stores predetermined information on road conditions and configured for comparing with the predetermined road conditions to obtain a comparison result. The transmission device communicatively coupled to the information processing device and configured for transmitting the comparison result to a predetermined recipient.

Abstract: An automatic shelf stocking apparatus, which restocks goods onto a product shelf, includes a detection device, a communication device and a restocking device. The detection device determines whether a current stock of goods on the product shelf is less than a predetermined preferred stock value. The communication device outputs a restock instruction if the current stock is less than the preferred stock value. The restocking device prepares goods for restock following receipt of the restock instruction, and delivers the prepared restock goods to the product shelf.

Abstract: An automatic vending machine for light bulbs includes an assembling system and a user interface. The assembling system includes a component depository. The component depository is used for storing various components of the light bulbs, inclusive of various light sources and various bulb envelopes. The user interface includes a display terminal and an input terminal. The display terminal is used to show parameters of the light bulbs. The input terminal is used for consumers to input selected parameters of the light bulbs according to their demand. The assembling system is used for receiving the selected parameters and assembling a selected light bulb corresponding to the selected parameters.

Abstract: A handle assembly includes a handle body, a handle leg connected with the handle body, and fastening portion adjacent to an end of the handle leg. The handle leg includes a notch defined in an outer surface of the handle leg. The fastening portion includes a head portion and a connecting portion extending from the head portion to connect an external apparatus. The head portion includes a receiving hole defined by an internal surface thereof and a block protrusion formed on the internal surface of the receiving hole and extending towards an axis of the fastening portion. The block protrusion of the head portion is engagably received in the notch of the handle leg to enable the fastening portion be rotatable round the axis of the fastening portion.