60results about How to "Low illumination" patented technology

The invention provides a lighting device which can adjust the illumination and color temperature of irradiation light. The lighting device can prevent eyes from getting fatigue easily even if the illumination is increased to improve the readability of characters, thereby allowing long-time visual tasks and saving energy. The lighting device comprises a first light source unit emitting light with a specified color temperature, a second light source unit emitting light with a color temperature different from that of the first light source unit, and a control unit for controlling light adjustment for the light source units separately. The control unit adjusts an output ratio of the light source units to make the illumination and color temperature of the irradiation light to change in an inverse correlation manner. The color temperature drops if the illumination rises, so that the glare of the irradiation light is inhibited even if the illumination is increased to improve the readability of characters, and eyes are prevented from getting fatigue easily, thereby allowing long-time visual tasks. Besides, the color temperature rises when the illumination decreases, so that the illumination decreases while the readability of characters is maintained, thereby saving energy.

The invention provides a voltage regulation circuit of illuminating lights, which is suitable for an illumination system which is serially composed of a main power source and an illumination load. The single-phase illumination system comprises the main power source which outputs sine alternating current voltage, and the illumination load. The voltage regulation circuit of illuminating lights is in series connection in a loop which is formed by the main power source and the illumination load, and comprises a voltage regulation circuit and an auxiliary power source. The voltage regulation circuit is used for generating auxiliary voltage to regulate amplitude of the sine alternating current voltage which is loaded on the illumination load. Power consumption of the voltage regulation circuit of illuminating lights is small, harmonic wave loaded on the illumination load is also small, so that the alternating current voltage loaded on the illumination load is still of sine curve. The normal voltage requirement loaded by the illumination system is satisfied, in particular when being inputted with sine curved voltage, twinkling of an HID lamp or a fluorescent lamp is reduced, the power factor is enhanced, and the service life of an illuminating lamp is extended. In addition, the method is also suitable for other illuminating lamps inputted with the sine curved voltage.

A frameless display device is formed by jointing a plurality of display units; each display unit includes a display panel, a frame, a backlight module, and an image lengthening element; the display panel includes a display surface and a non-display surface opposite to the display surface; the frame forms on edges of the display panel and surrounds the display panel; the backlight module is opposite to the non-display surface; the backlight module includes backlight light sources; the image lengthening element faces the display surface; each display unit also includes a light compensation module; the light compensation module is near the frame and includes a light guide plate and compensation light sources; and a gap is formed in a part corresponding to the backlight light sources, of the light guide plate; light of the backlight light sources passes through the gap to the display panel. The frameless display device can avoid dark display frames with uneven light.

The invention relates to a street lamp energy-saving control system, in particular to an improvement of a control system used for controlling the street lamp working state at the fixed area and the right time. The system comprises a box body, a control circuit and a photoreceptor, wherein the control circuit comprises a CPU, a clock circuit, a switch circuit and an electronic voltage regulator which are connected with each other; the photoreceptor is connected with the CPU; the clock circuit is internally provided with a memorizer which is recorded with sun set and raise time data obtained by conversion according to the longitude and latitude of the area where a street lamp is positioned; and the CPU is internally provided with a storage area which is recorded with program working according to a data command switch circuit of the clock circuit and/or the electronic voltage regulator and a signal command switch circuit of the photoreceptor. The street lamp energy-saving control system can realize on-off control and voltage regulating control according to the area time, thus ensuring the street lamp to continuously work at the reasonable illumination and the best voltage-bearing state all the time, and adapting to the need of the special working condition. Furthermore, the system greatly saves the energy consumption of the street lamp and prolongs the service life of a lamp bulb of the street lamp.

In a polarized light illuminating apparatus that uses a polarizer unit in which a plurality of polarized plates are arranged and configured, an external gas is introduced in a lamp box from the gaps of the boundaries of the polarized plates. The polarized light illuminating apparatus of the present invention is equipped with a light emitting part (2) which possesses a bar-shaped lamp (21) and a cylindrical reflector (22), the polarizer unit (80) is arranged at the light emitting side, and a plurality of polarizers are arranged and configured on the polarizer unit (80). An cooling air is cooled by a cooling machine (20), is transmitted by an air blower (30) to the light emitting side of the above reflector (22) via a ventilation path (50) to cool the lamp (21) and the reflector (22), and is returned to the cooling machine (20). A nozzle (3) used to supply a gas ( for example, a clean and dry gas) is arranged in a space between the reflector (22) and the above polarizer unit (80), and the above space becomes a positive pressure, so that the external gas can be prevented from being introduced into the lamp box (10).

The invention discloses a deformable lamp driven by a screw drive mechanism. The deformable lamp driven by the screw drive mechanism is formed by a deformable main lamp and a spherical auxiliary lamp,wherein the deformable main lamp is formed by an end cover, a shell, a base and a base-deformed mechanical device; and dotted LED (Light-emitting Diode) lamps are distributed along a radial directionof a sphere of the base body. The lamp provided by the invention is large in irradiation space, capable of realizing average indoor illuminance, and capable of turning a spherical lamp into a quincuncial lamp so as to increase illuminance of a nearby space under the lamp and reduce illuminance of other space indoors, and meets the individual needs of family members.

The invention belongs to the technical field of urban street lamps, and particularly relates to an anti-dazzle mechanism for an urban street lamp. The anti-dazzle mechanism comprises an urban street lamp body, wherein the outer surface of the urban street lamp body is in an L shape; the anti-dazzle mechanism is arranged on the lower surface of the urban street lamp body; the anti-dazzle mechanismcomprises a lampshade, a first illuminating lamp source is fixedly installed at the center of the inner top wall of the lampshade through a bolt; a cylindrical block is fixedly connected to the lowersurface of the lampshade; and a light absorption layer is fixedly connected to the inner wall of the cylindrical block in a sleeving mode. According to the anti-dazzle mechanism for the urban street lamp, the light absorption layer is fixedly connected to the inner wall of the cylindrical block in the sleeving mode, so that the effects that high brightness generated by the first illuminating lampsource during working is absorbed, then part of light rays are diffused and reflected, the first illuminating lamp source keeps the brightness of night illumination of urban roads at regular light andshade levels are achieved, and the dazzling phenomenon when citizens ride bicycles and walk beside the urban street lamp body at night is avoided are achieved.

A high-voltage sodium lamp is the most commonly used electric light source. The invention discloses a voltage-reducing and power-saving method for the high-voltage sodium lamp, and a voltage transformation type power saver. tests are carried out according to appendix F of GB/T13259-2005, after the high-voltage sodium lamp is lighted on normally, when the voltage is dropped to 190V suddenly, the high-voltage sodium lamp does not light out; the high-voltage sodium lamp can implement voltage-reducing power supply tests; voltage-reducing experimental data from a certain manufacturing plant is as follows: when the power supply voltage is reduced from 220V to 200V, the lamp current is reduced by 6.3% and power is saved by 16.1%; the illuminance, the luminous flux and lighting effect are all lowered; however, the illumination quality (uniformity) late at night is not affected; the voltage transformation type high-voltage sodium lamp power saver mainly comprises a main circuit, a control circuit and a photoelectric controller; the power saver is tested by Hunan Province Measurement and Detection Institute; the test certification number is EQ no. 2009-0756; and the detection conclusion shows that the power of a 70W high-voltage sodium lamp can be saved by 16% under 200V power supply compared with that of the 70W high-voltage sodium lamp under 220V power supply.

The invention provides an excimer lamp having an ultraviolet reflection layer, which can inhibit the degree of illumination decrease even after long-term lighting to efficiently emit vacuum ultraviolet light. An excimer lamp (10) with an ultraviolet reflection layer (30) formed on a part of the inner surface of a discharge container (20) is characterized in that the ultraviolet reflection layer (30) comprises: an accumulation body (A31) formed on at least a part of an electrode (11) at one side; and an accumulation body (B32) formed on at least a part outside the area corresponding to the electrode (11, 12), wherein the accumulation body (A31) comprises silicon dioxide particles containing OH groups and micro-particles having melting points higher than that of silicon dioxide, the accumulation body (B32) comprises micro-particles containing silicon dioxide particles having OH groups, and the concentration of OH groups in the silicon dioxide particles forming the ultraviolet reflectionlayer (30) is more than 10 wt ppm.