Abstract: A steam cooking device which includes a pressure accumulating steam boiler and a steaming cabinet is disclosed. The pressure accumulating steam boiler heats liquid water and accumulates a steam having a pressure between 1.1 and 5.0 times atmospheric pressure. The steaming cabinet receives the steam from the pressure accumulating steam boiler to cook a foodstuff contained therein. To raise the temperature of a foodstuff accommodating chamber within the steaming cabinet from a room temperature to a cooking temperature, a WH1 amount of energy is consumed by an electricity-heat conversion unit in the pressure accumulating steam boiler. A foodstuff accommodating chamber within the steaming cabinet has a volume of V1. The steam cooking device satisfies V1/WH1>160. The cooking temperature is between 101° C. and 150° C. and is lower than or equal to the temperature of the steam when the steam is outputted from the pressure accumulating steam boiler.

Abstract: A steam cooking device which includes a pressure accumulating steam boiler and a steaming cabinet is disclosed. The pressure accumulating steam boiler heats liquid water and accumulates a steam having a pressure between 1.1 and 5.0 times atmospheric pressure. The steaming cabinet receives the steam from the pressure accumulating steam boiler to cook a foodstuff contained therein. To raise the temperature of a foodstuff accommodating chamber within the steaming cabinet from a room temperature to a cooking temperature, a WH1 amount of energy is consumed by an electricity-heat conversion unit in the pressure accumulating steam boiler. A foodstuff accommodating chamber within the steaming cabinet has a volume of V1. The steam cooking device satisfies V1/WH1?160. The cooking temperature is between 101° C. and 150° C. and is lower than or equal to the temperature of the steam when the steam is outputted from the pressure accumulating steam boiler.

Abstract: A panel is disclosed in the present invention. The panel includes at least a liquid crystal layer, at least a first electrode layer, at least a second electrode layer and at least two control electrodes. The liquid crystal layer includes a plurality of liquid crystal molecules. The first electrode layer is disposed in a first direction with respect to the liquid crystal layer. The first electrode layer includes a plurality of etching structures and a plurality of conducting structures. The second electrode layer is also disposed in the first direction with respect to the liquid crystal layer. The two control electrodes are disposed in a second direction with respect to the liquid crystal layer. The two control electrodes are utilized to generate an electric field substantially distributing along the second direction to control operations of the plurality of liquid crystal molecules.

Abstract: An exemplary zoom lens comprises, in order from an object side of the zoom lens, a first lens module having a negative refractive power, a second lens module having a positive refractive power and a third lens module having a positive refractive power. When the zoom lens is adjusted from wide-angle to telephoto, the first lens module remain fixed in place, the second group is moved toward the object side thereof along an optical axis so as to perform the zooming, while the third group is moved along the optical axis so as to compensate for any fluctuation of in position of an image on the image plane caused by the movement of the second lens module.

Abstract: An exemplary zoom lens comprises, in order from an object side of the zoom lens, a first lens module having a negative refractive power, a second lens module having a positive refractive power and a third lens module having a positive refractive power. When the zoom lens is adjusted from wide-angle to telephoto, the first lens module remain fixed in place, the second group is moved toward the object side thereof along an optical axis so as to perform the zooming, while the third group is moved along the optical axis so as to compensate for any fluctuation of in position of an image on the image plane caused by the movement of the second lens module.

Abstract: A backlight module (100) includes a light source (120) for emitting light therefrom, and a light guide plate (110). The light guide plate includes a light exit surface (111), a bottom surface (112) opposite to the light exit surface, a receiving hole (113) defined in the bottom surface with the light source received therein, a first reflecting surface (115) in the receiving hole facing away from the light exit surface and configured for reflecting the light emitted from the light source, a light incidence surface (116) in the receiving hole, a recess (114) defined in the bottom surface, and a second reflecting surface (117) arranged in the recess. The second reflecting surface faces toward the light exit surface and the first reflecting surface. The second reflecting surface is configured for directing the reflected light from the first reflecting surface to the light exit surface.

Abstract: An billboard (10) includes a substrate (11), a lens array (12) and at least one light source (13). The substrate has two opposite surfaces. A plurality of pattern units formed on one surface of the substrate or formed in the substrate. Each pattern unit includes a plurality of pattern cells for being selectively combined to form at least one independent image. The lens array corresponding to the pattern units is arranged on one surface of the substrate. The lens array is configured for displaying the at least one independent image. The lens array includes a plurality of cylindrical stripe-like lenses. The cylindrical stripe-like lenses substantially extend parallel to each other. At least one light source disposed facing to the other surface of the substrate configured for emitting light rays towards the substrate.