89results about How to "Evenly mixed light" patented technology

An LED unit module (11), a light-emitting device (1), and a light source system. The LED unit module (11) comprises a substrate (13) and an LED chipset (14) arranged on the substrate (13). The LED chipset (14) comprises at least five LED chips, where the LED chips are in a tight arrangement with each other, and the contour of a light-emitting side of the LED chipset is close to a regular hexagon. The LED chipset (14) comprises LED chips of at least four colors, where the four colors are red, blue, green, and amber. The LED unit module (11) allows for prevention of increased etendue and for uniform mixing of lights.

The invention discloses an LED-based intelligent color assessment cabinet. A combination of an LED light source and a tungsten lamp is used as a light source for color assessment lighting, and the color assessment light source more excellent in coloring characteristic is obtained by means of combination of spectral power distribution characteristics of the LED light source and the tungsten lamp; since a color filter is arranged in front of the tungsten lamp, more optimized spectral power distribution is obtained to further optimize the coloring characteristics of the color assessment light source. By the aid of light-emitting relative spectral powder distribution data, prestored in a memory unit under drive of different currents or pulse widths, of the LED light source or the tungsten lamp, all types of standard lighting sources can be simulated more accurately, and color assessment realness and reliability are improved.

The invention discloses a diffusion plate with dot-matrix diffusion structures. The dot-matrix diffusion structures are arranged on an out-light surface or an in-light surface of the diffusion plate, and centers of the diffusion structures correspond to light source centers of backlight sources one by one. The diffusion structures include two structures: the first structure includes that the center area of the first diffusion structure is a circular disc, hollow spots arranged in concentric circles are arranged on the circular disc, solid spots arranged in concentric circles are arranged outside the central area, and the first diffusion structure is coated on the solid spots and positions around the hollow spots on the circular disc; the second structure includes that circular rings arranged in concentric circles are distributed in the central area of the second diffusion structure, solid spots arranged in concentric circles are arranged outside the central area, and the second diffusion structure is coated on the circular rings and the solid spot areas. Intensities of diffusion structures on all circles of the first and the second structures become smaller and smaller from the center to the outside.

The invention discloses a backlight module which at least comprises a light source, a light guide plate and a light conduction structure. The light source consists of a plurality of LEDs (Light-Emitting Diodes); each LED is provided with a light extraction surface; the light guide plate is made of transparent light guide material and comprises a light entrance surface and a light extraction surface perpendicular to the light entrance surface; the light conduction structure is made of transparent light guide material, comprises a light entrance surface and a light extraction surface opposite to the light entrance surface, is arranged between the light extraction surface of the light source and the light entrance surface of the light guide plate and fills a gap between the light extraction surface of the light source and the light entrance surface of the light guide plate; the light extraction surface of the light source is connected with the light entrance surface of the light conduction structure; the light extraction surface of the light conduction structure is connected with the light entrance surface of the light guide plate; and light emitted by the light source is diffused by the light extraction surface of the light guide plate. According to the invention, the design of a narrower border is realized; and meanwhile, a light mixing distance at the light entrance side is not changed, an effect of uniformly mixing light is still achieved under the condition of reducing the number of the LEDs, and light entrance coupling efficiency between the light source and the light guide plate of the backlight module is strengthened.

The invention discloses a backlight module having a light complementary color area. The module is provided with a light guide plate having a light entry side and a light exit side which is vertical to the light entry side, and a linear light source which is adjacent to the light entry side of the light guide plate for irradiating the light entry side and comprises mutually interlaced linearly arranged first wavelength light-emitting diodes and second wavelength light-emitting diodes, wherein the wavelength of the first wavelength light-emitting diode is different from the wavelength of the second wavelength light-emitting diode and the lights form white light beam after being mixed. The module further comprises at least two light complementary color areas at the end or around the side light-emitting diodes so as to uniformly mix the light at the end of the light-emitting diodes. The light complementary color areas complement white light to the end light-emitting diodes. The backlight module having a light complementary color area of the invention can uniformly mix the light beam at the end of the light source.

A LED lamp and a light effect improving method thereof. A bulb shell (2) is covered on LED beads (3), and is mounted in a reflection cup (1). The bulb shell (2) is used for processing a primary optical process for the light emitted by the LED beads (3). The reflection cup (1) is used for processing a secondary optical process for the light which is subjected to the primary optical process performed by the bulb shell (2). By the functions such as refraction, scattering, diffusion and the like of the bulb shell (2), the primary emergent light emitted from the LED beads (3) is subject to the primary optical process such as mixing, scattering and so on, so as to realize the treatment effect that the light is emitted from the three-dimensional surface of the bulb shell (2). The reflection cup (1) performs the secondary optical process, so as to reflect the scattering light within a certain angle range.

This invention discloses a sort of back-light module, and it consists of the printed circuit board, several light-emitting diodes, and the light board. The several light-emitting diodes which is arrayed in the array manner or the random array is fixed in the printed circuit board in order to offer the lighting power which is offered to the back-light module. The light board which has the in-light face and the out-light face is fixed in several light-emitting diodes, the in-light face of the light board is the flat curved face or the curved face which has the random curvature, the out-light face of the light board has several flute which makes the light power which is offered by the light-emitting diode to reach the total reflection in the light board effectively and after the power is emitted by the out-light face of the light board it can be mixed in the light board equably in order to make the light power which is emitted by the out-light face of the light board to have the symmetrical high light energy.

The invention discloses an LED display module and a manufacturing method thereof. The manufacturing method comprises the steps: providing a substrate, and enabling LED chips to be disposed on the substrate in an inverted manner; forming a black film layer between the LED chips, and leveling the black film layer through a plasma leveling technology, wherein the black film layer is used for preventing optical crosstalk between the LED chips; and forming a light mixing layer on the black film layer and the LED chip, wherein the light mixing layer is used for protecting the LED chip and the blackfilm layer and providing a light scattering effect for the LED chip. According to the invention, a black film layer is arranged between LED chips, and a light mixing layer is arranged on the black film layer and the LED chip, so that the defects in the prior art can be overcome; and particularly, after the black film layer is flattened through a plasma flattening technology, the ink color betweenunit plates/modules is more uniform and consistent, the colors and brightness of different areas of a single unit plate/module are more uniform, and light mixing is more uniform during side observation.

The invention discloses an LED white light illuminating bulb which comprises a bearing substrate, a plurality of red light LED packaging elements, a plurality of green light LED packaging elements, a plurality of blue light LED packaging elements, a shield-type light housing and a conductive element, wherein the red light LED packaging elements, the green light LED packaging elements and the blue light LED packaging elements are arranged on the bearing substrate, and each red light LED packaging element, each green light LED packaging element and each blue light LED packaging element are respectively provided with a red light emitting LED wafer, a green light emitting LED wafer and a blue light emitting LED wafer, a covering body which respectively covers the red light LED wafer, the green light LED wafer and the blue light LED wafer and a plurality of diffusion particles distributed in the covering body; the shield-type light housing is connected to the periphery of the bearing substrate so as to close the non-emitting directions of the red light LED packaging elements, the green light LED packaging elements and the blue light LED packaging elements; and the conductive element is connected to the shield-type light housing, electrically connected with the bearing substrate and used for switching an external power supply onto the red, the green and the blue light LED wafers. The LED white light illuminating bulb has the advantages of even light mixing, easy color temperature adjustment and high rendering.

The invention discloses a low space color cast LED packaging structure comprising a substrate, an LED chip, a phosphor body and a lens, wherein the LED chip is arranged on the substrate, the phosphor body comprises a positive hemisphere body and an extending part which is formed by extending the lower part of the positive hemisphere body, the phosphor body is arranged on the substrate and covers the LED chip, and the lens is arranged at the outer side of the phosphor body in a covering manner and therefore light extraction efficiency can be improved. Through an embodiment of the low space color cast LED packaging structure, long perpendicular distance is enabled between the LED chip and the top part of the phosphor body the arrangement of the extending part, long optical length of forward direction light of the LED chip is realized, and therefore space color cast can be lowered.

A light-emitting diode encapsulating method comprises the following steps that a substrate with a circuit structure is provided, at least one reflector cup is arranged on the substrate, at least one light-emitting diode chip is arranged on the substrate and in the reflector cup, and the light-emitting diode chip is electrically connected with the circuit structure; an encapsulating material is provided, the encapsulating material comprises a transparent layer and a fluorescent layer, and the hardness of the transparent layer is smaller than that of the fluorescent layer; the encapsulating material and the reflector cup are pressed together through a mould, part of the transparent layer is squeezed into the reflector cup and combined with the reflector cup, and the fluorescent layer is arranged outside the reflector cup and covers the transparent layer; the mould is removed, and the encapsulating material is solidified. By means of the light-emitting diode encapsulating method, the transparent layer can be easily combined with the reflector cup in the pressing process; meanwhile, the fluorescent layer is maintained to be of a layered structure with the uniform thickness, fluorescent powder is evenly distributed, and thus the light blending of a light-emitting diode is made to be even. The invention further provides the light-emitting diode.

The invention discloses a laser light source device and a projection system. The laser light source device comprises a laser and a light combining assembly, wherein the laser comprises a first laser chip, a second laser chip and a third laser chip which emit laser with different wavelengths, the laser chips with the same color are arranged into a laser chip group, and the laser chips are arranged into a matrix; and the light combining assembly is positioned on the light emitting side of the laser and is used for enabling the laser beams with different colors emitted by each laser chip group to be converted and beam to the same position through a light path and then to be emitted in a set direction. The light combining assembly comprises a reflector and a light combining mirror, the laser beams are subjected to light path turning through the reflector, the laser beams with different colors are combined through the light combining mirror, and finally the laser beams emitted by the laser chip groups are combined to the same position, so that the positions of laser spots with different colors are overlapped, the spot size is reduced, and the lasers with different colors are mixed more sufficiently.

The invention discloses a uniform-illumination reflecting cup. The reflecting cup is provided with a cup body which is formed by connecting and arranging at least three planar reflecting plates in turn in a circle, wherein the diameter of the front end of the cup body is greater than that of the back end of the cup body. The uniform-illumination reflecting cup provided by the invention has uniform light distribution effect and high lamp illumination efficiency and adapts to point light sources and surface light sources.

The present invention provides an LED light source with adjustable color temperature, which includes a heat-conducting substrate, a first LED chip group and a second LED chip group respectively connected to different external circuits, and the heat-conducting substrate is provided with a reflector penetrating through itself. Cavity; the center of the top surface of the heat conduction substrate corresponding to the reflective cavity is provided with a first groove, the first LED chip group is arranged in the first groove, and the first fluorescent colloid is arranged in the first groove And the first fluorescent colloid covers the first LED chip group; the top surface of the thermally conductive substrate on the periphery of the first groove is provided with a second LED chip group; the reflective cavity is provided with a second fluorescent colloid; the The second fluorescent colloid is covered on the first fluorescent colloid and the second LED chip group. The invention also provides a manufacturing method of an LED light source with adjustable color temperature. Through the above structure and steps, in order to realize the LED light source with adjustable color temperature and uniform light mixing, the present invention transforms the distribution of fluorescent colloids in the horizontal direction into vertical distribution in the traditional adjustable color temperature LED light source fluorescent colloid, so that the light emitting area of ​​different color temperature The axes are coincident, and the light mixing is more uniform.

The invention provides a full-spectrum CSP packaging light source. A high-color temperature white CSP light source, a low-color temperature white CSP light source, a blue CSP light source, a green CSP light source and a red CSP light source are packaged on a packaging bracket at a certain number ratio; the high-color temperature white CSP light source and the low-color temperature white CSP light source can adjust a color temperature and the light emitting intensity as main light sources, and the blue CSP light source, the green CSP light source and the red CSP light source supplement a missing band as single-color light filling sources, so that the overall light source is high in saturability and the spectrum continuity is good. The high-color temperature white CSP light source and the low-color temperature white CSP light source are alternately packaged on the packaging bracket on the periphery of a light filling source region, so that the full-spectrum CSP packaging light source has a uniform light mixing characteristic in color temperature adjustment of the single-color light sources in the light filling source region or the high-color temperature white CSP light source and the low-color temperature white CSP light source, and has the advantages of a good light effect, excellent light quality and an adjustable color temperature.

The invention discloses an LED white-light illuminating street lamp comprising at least one bearing base board, a plurality of red-light LED packaging elements, green-light LED packaging elements and blue-light LED packaging elements, wherein all LED packaging elements are arranged on the bearing base board; the bearing base board is arranged on a lamp holder, and the lamp holder can be arranged on a lamp post; and light beams emitted by the LED packaging element with various light colors can be uniformly mixed into white light so that the breadth and the brightness of illumination are enhanced. In addition, the color temperature of the white light can be easily adjusted by adjusting the quantity and the setting positions of the LED packaging elements with various light colors; and moreover, the LED white-light illuminating street lamp also has high color rendering performance.

The invention relates to the technical field of lighting, and provides a lamp which comprises a substrate, a plurality of light-emitting units and a control module, each light-emitting unit comprisesa white light source and a plurality of RGB light sources, each white light source comprises a plurality of white light beads, and each RGB light source comprises a red light bead, a green light beadand a blue light bead; the control module comprises a white light control module and an RGB control module, and can enable the light-emitting units to generate light meeting the requirements of various occasions. The lamp beads of the RGB light source are arranged adjacently in pairs, so that light can be well mixed. The plurality of RGB light sources are uniformly arranged on the periphery of thewhite light source, so that light of the RGB light sources and the white light source can be uniformly mixed in the single light emitting unit. The plurality of light-emitting units are uniformly distributed at intervals along the circumferential direction of the central area, so that when the control module adjusts the white light sources and the RGB light sources, the lamp can emit uniform mixed light.