444results about How to "Improve lighting quality" patented technology

The present invention relates to an LED lamp in which, because the lamp has therein a heat dissipation transfer member and the power source base thereof is made of materials including polycarbonate, etc. with a high emission rate of radiation so as to enhance its surface heat dissipation constant, the power source base has sufficient heat dissipation performance and, thus, a separate insulation circuit is not necessary, thereby improving reliability and productivity of the lamp as well as reducing the cost of manufacturing.

To this end, the present invention provides an LED lamp comprising one or more LEDs mounted on a PCB, a floodlight cover that transmits light from the LEDs, and a power source base coupled to the floodlight cover and having a terminal at one end thereof, wherein the power source base is made of an insulation material; and the LED lamp also comprises a heat dissipation transfer member that has a heat sink in contact with the PCB on which the LEDs are mounted, and is formed and installed so as to overlap with and be in tight contact with the inner face of either the power source base or the floodlight cover or both.

Embodiments of the present invention relate to systems and methods for creating, distributing and playing illumination data files. The illumination data files, created using luminaire development systems are uploaded to a luminaire management system, where they are further processed and packaged for sale or license within a luminaire marketplace. Consumers and enterprises using luminaires may establish accounts with the luminaire management system and marketplace to access illumination data files for playback on individual or multiple luminaires. Consumers and enterprises may also create play lists and uniquely configure the luminaires to display various lighting effects based on user preferences, environmental factors or energy efficient settings.

The invention discloses a method for measuring object deformation in real time, which comprises the following steps: arranging and adjusting measuring equipment, namely symmetrically arranging two cameras and corresponding LED illumination lamps above a measured object, and making optical axes of the two cameras intersected in a distance of 1 meter in front of the cameras; then calibrating the cameras, namely tightly sticking mark points to the surface of an object to be measured according to the size and shape of the measured object and the measurement requirement; next, placing the measured object stuck with the mark points under the two cameras in about 1 meter or moving the whole measuring equipment to make the measured object enter a measurement range and enable each camera to acquire the mark points on the surface of the measured object, starting the two cameras to shoot sequence images, and acquiring digital images; then identifying and positioning the images; reversely solving a projection matrix according to the calibration result of the cameras, and combining image coordinates of the solved mark points on the surface of the measured object on the images of the two cameras to reconstruct a three-dimensional coordinate of the mark points; and finally, carrying out deformation analysis and calculation for the mark points on the surface of the measured object.

The present invention provides a light source having an improved output optical quality. In general, the light source comprises one or more light-emitting elements in each of at least a first, a second and a third colour. The combined spectral power distribution of these light-emitting elements generally defines a spectral concavity. The light source further comprises a light-excitable medium configured and disposed to absorb a portion of the light emitted by one or more of the light-emitting elements and emit light defined by a complementary spectral power distribution having a peak located within the concavity. By combining the spectral output of the light-emitting elements with the spectral output of the light-excitable medium, an optical quality of the light source is improved.

The LED (light emitting diode) light source that includes an LED chip or an array of LED chips that emit blue, or UV, violet, or other narrow wavelength light and a phosphor conversion coating that absorbs the radiation from the LED and re-emits lights of longer wavelengths and with wider spectrum of wavelength. The phosphor conversion coating includes a plurality of layered phosphor films wherein adjacent phosphor films are formed of different phosphor materials. A method of forming an LED light source includes soldering LED chip to an electrically insulating substrate and forming a phosphor conversion layer. Forming the phosphor conversion layer includes depositing a number of adjacent phosphor films directly on the surface of the LED chip or on the surface of an optically transparent substrate which may be of curved or flat surface.

Provided is a surface light source unit which has a high-directivity point light source and has a decreased thickness in the in the direction in which light is irradiated from said point light source. Also provided are a surface illumination device and a liquid crystal display device. A plurality of small chambers (311 to 322) having an opening on the top are formed in a housing (3) from side plates (3b to 3e) that have a predetermined height and partition plates (4) which partition the inside of the housing (3). Each small chamber is provided with a point light source (2) on the bottom part. The opening of each small chamber (311 to 322) is covered with a light transmitting/reflecting plate (511 to 522) which has a surface area (S), and comprises: a central reflecting section that has a surface area (ΔS), exhibits high reflectance and low transmittance, and is positioned directly above the point light source (2); and an outer reflecting section that surrounds the central reflecting section and is configured so that the light transmittance increases at distances further from the central reflecting section. The surface area (ΔS) and surface area (S) of each light transmitting/reflecting plate (511 to 522) are set in a manner such that the ratio ΔS/S is a predetermined value.

LEDs 5 serving as light sources are arranged so as to face an incidence surface 4 of a light guide plate 3. Light emitted from the LEDs 5 is incident on the incidence surface 4 of the light guide plate 3 to enter the light guide plate 3 to be propagated through the light guide plate 3. When the angle of incidence of the light on an emission surface 6 of the light guide plate 3 is a critical angle or less while the light is propagated, the light leaves the emission surface 6. On at least one of the emission surface 6 of the light guide plate 6 and a surface 10 opposite to the emission surface 6 of the light guide plate 6, a large number of prism protrusions 12 extending in parallel to such a direction that a distance from the incidence surface 4 increases are formed along the incidence surface 4. A side-face side portion 10b of the prism protrusions 12 is formed so as to have a height gradually decreasing as a distance from the incidence surface 4 decreases. With this construction, even if the LEDs are used as light sources, abnormal emission can be suppressed in the vicinity of the incidence surface of the light guide plate, and the luminance of exiting light can be uniform.

The invention provides a light-emitting diode display back plate, a manufacturing method and a display device for the light-emitting diode display back plate and belongs to the field of displaying. The manufacturing method for the light-emitting diode display back plate includes steps: forming a transparent and conductive anode on a substrate; forming a pixel area defined by a first pixel defining layer and a second pixel defining layer on the substrate where the anode is formed; injecting light-emitting materials into the pixel area, and forming an light-emitting layer comprising the light-emitting materials; and forming a conductive cathode on the substrate where the light-emitting layer is formed. The second pixel defining layer made of hydrophobic materials is located above the first pixel defining layer made of hydrophilic materials. By the aid of the light-emitting diode display back plate, the manufacturing method and the display device for the light-emitting diode display back plate in the technical scheme, the light-emitting materials can be flatly laid on the light-emitting diode display back plate, and light-emitting quality of the light-emitting diode display back plate is improved.

Lenses and bezels for lamps provide an appealing aesthetic look in the form of a colored glow at the edges of the lens or bezel by incorportation of an photoluminescent material in a molded polycarbonate body. The lenses are particularly suitable for use as an automotive outer lens, and can also improve the quality of the light emitted through this outer lens by interacting with the light bulb. The emitted beam is of a legal color and intensity as defined per the SAE J578 standard. The lighting performance may also be improved in such manner as reducing glare, increasing brightness or producing a beam that enhances road visibility at night to the human eye.

A method for a computer system includes determining a plurality of illumination modes associated with a plurality of scene descriptors, wherein the plurality of scene descriptors includes a first scene descriptor and a second scene descriptor, determining a first plurality of weights, wherein each weight from the first plurality of weights is associated with an illumination mode from the plurality of illumination modes, determining illumination data associated with the first scene descriptor in response to the first plurality of weights and in response to the plurality of illumination modes, determining a second plurality of weights, wherein each weight from the second plurality of weights is associated with an illumination mode from the plurality of illumination modes, and determining illumination data associated with the second scene descriptor in response to the second plurality of weights and in response to the plurality of illumination modes.

A coupling lens for coupling first light having a first wavelength from a first light source with a second light having a second wavelength from a second light source disposed adjacent to the first light source in substantially the same direction includes a first surface disposed to face the first and second light sources, the first surface including a first region transmitting the first light and having a first region curvature and a second region transmitting the second light and having a second region curvature, and a second surface opposite to the first surface and having a second-surface curvature. A position of a center of the first region curvature differs from a position of a center of the second region curvature. A center of the second surface curvature and the center of the first region curvature are disposed on an optical axis of the first or second light source.

The invention discloses an optical diaphragm, a light guide plate, a combination method of the optical diaphragm and the light guide plate, and a backlight module provided with the optical diaphragm and the light guide plate, and relates to the field of display, aiming at solving the displacement or the wrinkle of the diaphragm caused by the overlarge size of the diaphragm, the bad assembly, the heating deformation and the vibration, effectively reducing the probability of the bad screen display quality, and improving the display effect. Some parts or all parts of at least one of surfaces of the optical diaphragm are provided with magnetic diaphragm layers; and the magnetic diaphragm layers have the magnetism, and are made from transparent magnetic materials. The surface of the light guide plate is further provided with the magnetic diaphragm layer. The combination method of the optical diaphragm and the light guide plate in the backlight module comprises the following steps of: respectively arranging the magnetic diaphragm layers on the light guide plate and the optical diaphragm; and gluing each optical diaphragm with each light guide plate due to the magnetic attraction of the magnetic diaphragm layers.

A terminal for monitoring road lamp of city consists of GSM data transmitting - receiving module or GPRS data transmitting - receiving module , transceiver , MCU controller , AC contactor open - close driving circuit , AC contactor open- close state detection circuit and sunlight illumination detection circuit . The terminal set far from road lamp management centre can realize two-way remote data transmission with said centre for achieving remote control and data refreshment of road lamp.

A luminaire comprising a heat sink, a light source to emit a source light, a heat spreader having inner and outer surfaces, and LEDs carried by a circuit board and disposed generally along a periphery of the inner surface and positioned in thermal communication therewith. The luminaire comprises a reflector disposed coextensively with the LEDs and comprising an aperture. An outer edge of the aperture defines an inner rim of the reflector. A light guide positioned between the reflector and the light source exhibits a height defined as the distance between the inner surface of the heat spreader and a plane defined by the inner rim of the reflector. The light guide comprises deformations and/or lens portions configured to change the source light into a shaped light that is directed through the aperture. The deformations are characterized by a common shape positioned about a center of the light guide.

A light emitting apparatus can prevent unevenness in illuminance from being produced. This light emitting apparatus 5 has: light emitting elements 3 that emit light; and light flux controlling members 4 that control the traveling directions of light emitted from light emitting elements 3, and a plurality of grid convex parts 13 are formed in back surface 12 (i.e. lens bottom surface) of light flux controlling member 4. Grid convex parts 13 vary the incident angles of light incident on back surface 12 of light flux controlling member 4. Therefore, light incident from back surface 12 is scattered without being concentrated, and is emitted from light flux controlling member 4. A surface light source apparatus (1) and a display apparatus (6) include the light emitting apparatus (5).

The invention provides an integrated large-power LED medical illumination chip which can be used as a light source with adjustable color temperature for medical operating illumination, inspection illumination, and whole illumination in an operating room; the chip mainly comprises an LED tube core, a substrate, a heat dissipation plate, a power switchover line and an LED driving controller; LED tube cores with different colors are integrated on the substrate of a circuit board by a certain array; the substrate is connected on the heat dissipation plate; according to different colors of LED tube cores, the integrated chip is divided into a plurality of groups which are used for power supply respectively. Brightness of various colors can be adjusted independently, the integrated large power LED chip can be adjusted in the range of 3500K-6500K to have any color temperature and brightness according to the mixed color proportion of the LED tube core series of different colors, the chip can be used for illumination in operating rooms, inspection rooms, environment with special color temperature requirement and the like, is especially applicable for medical illumination and the like, and is beneficial for improving the medical illumination quality and reducing the medical negligence.

The invention belongs to the technical field of medical instruments, and discloses an integrated medical endoscope system which comprises an endoscope catheter of a step type sleeve tube structure, a crescent LED illuminating system, an optical system, a CMOS system and an image processing unit. The crescent LED illuminating system, the optical system, the CMOS image pick-up system and the image processing unit are arranged at the tail end of the endoscope catheter in sequence. The crescent LED illuminating system embedded in the tail end of the endoscope catheter is composed of a copper substrate and SMD LEDs arranged on the copper substrate. The integrated medical endoscope system overcomes the defects that original equipment is large in size and poor in imaging quality and is provided with many wires, wireless emission and receiving are adopted, the structure is simple, the operation is convenient and fast, a digital image processing system is adopted, full-high-definition 1080P output is supported, the image definition is high, and the higher dynamic range and better depth information can be obtained.

A liquid crystal display (LCD) includes a backlight module and a heat dissipation device. The backlight module includes a frame, a reflector and several light sources. The reflector is disposed on the frame. The light sources disposed above the reflector. The heat dissipation device includes a fan, a sensor and a controller. The sensor is for sensing internal temperature of the LCD. The controller is connected to the fan and is for controlling the rotating speed of the fan according to the internal temperature of the LCD.