38results about How to "Efficient lighting" patented technology

The invention realizes a phosphor film that has a fluorescent characteristic excellent in resistance to humidity and provides, using the phosphor film, a liquid crystal display device that is excellent in resistance to humidity and has satisfactory calorimetric property and color mixture property. Phosphor particles that are excited by incident light and emit light having a wavelength different from the incident light are mixed in a binder. The binder mixed with the phosphor particles is sandwiched between a translucent film and a non-permeable layer as a phosphor layer to form a phosphor film. This phosphor film is provided at least in one place among a place between a light source and a light guide of a lighting device, a place on a light irradiation surface of the light guide, and a place between the light guide and a reflection plate. Moreover, the phosphor particles have a characteristic that a wavelength absorbed by a color filter of a display element is set as an excitation wavelength and a luminescent wavelength is in a region transmitted by the color filter. With this phosphor film, it is possible to realize a display device that has extremely high luminance efficiency and color reproducibility.

A lighting device comprising a light source being configured to generate source light of a white light emission spectrum having a color correlated temperature (CCT) in a range of 2500-20000K and comprising a control unit being configured to control a lighting element for tuning of the source light with respect to a ratio between a first emission peak in a wavelength range of 460-490nm and a second emission peak in a wavelength range of 430-460nm. Thus a lighting device with a tunable / adjustable spectrum is provided that can switch between a first operation state of energy efficiency lighting with a blue peak in the second wavelength range of 430-460nm, but with blue hazard risk, and a second operation state of less efficient but safe, healthy lighting with a biological stimulant having a blue peak in the first wavelength range of 460-490nm.

A coordinate input unit is composed of a sensor as a means for detecting a manipulating state on a manipulation surface A manipulated by a coordinate indicator and a front light as an illumination means disposed on the sensor to illuminate the manipulation surface A. When the manipulation surface of the coordinate input device is illuminated, the light emitted from an LED is transmitted in a light introduction plate, emerged from a prism surface, changes its direction by being reflected on a reflection plate, and is directed to the manipulation surface. With this operation, the manipulation surface is illuminated.

The invention provides a flexible printing patch panel, an input module comprising the flexible printing patch panel and a portable device comprising the input module, the flexible patch panel is composed of positive and negative of conductive pattern covered with insulation layer, in the insulation layer is disposed with: a light guide part for guiding light from light source into the insulation layer; and a light emitting part for emitting light guided from the light guide part from inside the insulation layer to outside the layer, which can implement reduction of parts number and panel bonding operation, meanwhile, can implement improvement of press buttom sense, good illumination proceeded on the press button input operation part, and further slimming of obtained module or device.

In order to provide a small push button switch that can arrange the display part and the light source close to each other with a simple structure and can efficiently illuminate the display part, it is provided with: A display portion is formed on the upper end, and an insertion hole facing the through hole is formed on the bottom surface. The light source is accommodated in the insertion hole and the through hole; the through hole is formed in a linear shape along the pressing direction. Alternatively, in order to provide a miniaturized push button switch, it is provided with: a housing with a pair of fixed contacts extending in parallel along the pressing operation direction; a movable contact part held on the above-mentioned operation shaft and elastically The component is elastically biased, and is provided with a movable contact composed of a pair of protruding parts that are respectively in elastic contact with the above-mentioned fixed contacts; the contact-separation guide part is provided on the above-mentioned housing, and is in the closed position following the pressing operation. The upper portion is in contact with a portion between the pair of protruding portions, and the movable contact is separated from the fixed contact.

The invention relates to a laser line light source system with uniform lighting. In order to ensue the traffic safety of railway freight cars, a freight car (passenger car, motor train unit and locomotive) operation fault dynamic image detection system is promoted in a railway system in a system-wide manner. The product comprises a focusable prism with a step and a lens barrel (1), a prism (2) and a convex lens (3) are arranged in the large-diameter positions in the focusable prism and the lens barrel, a prism sheath (4) is sheathed outside the prism, the prism sheath is connected with a retainer ring (5), the small-diameter positions in the focusable prism and the lens barrel are in sleeve connection with an adjusting nut (6) and a laser lamp body (7), an optical fiber joint (8) is connected on one side of the laser lamp body, the optical fiber joint is connected with a semiconductor laser (10) through an optical fiber (9), and sealing glass covers (11) are connected at one end of the focusable prism and one end of the lens barrel. The laser line light source system can be applied in the detection of shooting operation fault dynamic images of freight cars, passenger cars, motor train units and locomotives.

The present invention relates to a surface-emitting LED cover, a lighting device and a display device. A surface-emitting LED cover (1) comprises a molded resin body, and is provided with a main reflector (2) for reflecting light toward the front of the surface light source, and sub-reflectors (3) that have a reflective surface for reflecting light from an LED light source (4) in the direction of the main reflector. The main reflector has openings (2a) in which an LED light source can be disposed, and is formed so as to have a curved surface that directs reflected light coming from the sub-reflector in the direction toward the front of the surface light source. The sub-reflectors are disposed above the openings formed on the main reflector, and the reflective surface of each sub-reflector is positioned at a slant to the aforementioned opening surface. Thus, a lighting device is provided that is capable of surface emission through a simple method, even when using an LED light source that has strong directionality.

The invention provides a building sunshade umbrella, which comprises at least one sunshade umbrella unit, a plurality of umbrella surface units, a movable umbrella support skeleton and a driver, wherein the sunshade umbrella unit comprises a fixed support skeleton; each umbrella surface unit comprises a framework and an umbrella surface film fixed on the framework; a plurality of umbrella surfaceunits are split into a sunshade umbrella surface around a center point; adjacent umbrella surface units are hinged and connected through hinges; the movable umbrella support skeleton comprises a plurality of movable umbrella support rods; the end part of the movable umbrella skeleton far away from the center point is arranged on an umbrella surface chute arranged on the fixed support skeleton; the driver comprises a top rod and a driving mechanism connected with the top rod; the top rod is positioned on the center point, and is hinged with each movable umbrella support rod, and the driving mechanism drives the top rod to move so that the split umbrella surface can be unfolded or folded. The building sunshade umbrella of the invention can be unfolded and folded, has the effects of both sunshade and lighting, has stable and firm structure, and is suitable for being arranged on external walls of middle and high buildings.

A coordinate input unit is composed of a sensor as a means for detecting a manipulating state on a manipulation surface A manipulated by a coordinate indicator and a front light as an illumination means disposed on the sensor to illuminate the manipulation surface A. When the manipulation surface of the coordinate input device is illuminated, the light emitted from an LED is transmitted in a light introduction plate, emerged from a prism surface, changes its direction by being reflected on a reflection plate, and is directed to the manipulation surface. With this operation, the manipulation surface is illuminated.