2763results about "Spectral modifiers" patented technology

A waist fan includes a housing, a fan assembly arranged in the accommodating cavity and configured to guide airflow from the air inlet to the air outlet, a light-emitting assembly, and a control assembly electrically connected to the light-emitting assembly and configured to control the light-emitting assembly to emit flashing light in different colors and / or warning flashing light. The housing includes an accommodating cavity, an air inlet communicated with the accommodating cavity, and an air outlet communicated with the accommodating cavity.

The light source module comprises a first light-emitting unit, a second light-emitting unit, a third light-emitting unit and a fourth light-emitting unit which are electrically independent from one another and have different light colors, and the light color of the single-color light-emitting unit is optimized by the light source module, so that the color temperature coverage range of white light obtained by light mixing is wide; compared with the prior art, the light source module has the advantages that the coverage range is from 1800 K to 20000 K, meanwhile, the light source module has good color rendering property, the color rendering index CRI is larger than 90 in the color temperature range of 1800-20000 K, the color rendering index CRI is larger than 95 in the color temperature interval range of 2100-20000 K, the light quality of the light source module is superior to that of an existing RGB, RGBW and other all-in-one light source, and the light source module is more suitable for the field of general indoor illumination. Meanwhile, color light can be compatible by controlling the multiple light emitting units, and a multi-color light mixing system capable of giving consideration to high-quality white light and color light atmosphere at the same time is formed.

An optical display device arranged to generate in an output aperture a virtual a sky scene which is configured to make a user experience distant depth perception, the device comprising: an output light generation system for generating output light comprising a three-dimensional arrangement of a plurality of light control members, which are carried by one or more optically transparent substrates, and a light source arrange to project light to and / or from the light control members, and; an output aperture for output of the output light, wherein the light control members are configured for manipulation of the output light to create a distant object component with one or more features that appear to an observer gazing into the output aperture to be at an apparent depth ZA beyond a physical depth ZD of the device.

The utility model relates to the technical field of lighting, and provides a light source module which comprises a first substrate and a plurality of light-emitting lamp beads, the first substrate is provided with a light-emitting face, and the light-emitting lamp beads are installed in the light-emitting face and distributed in a determinant mode. The light-emitting lamp beads comprise red light LED lamp beads, green light LED lamp beads, blue light LED lamp beads and white light LED lamp beads which are independently controlled; in every two adjacent rows of light-emitting lamp beads, two of the red light LED lamp beads, the green light LED lamp beads, the blue light LED lamp beads and the white light LED lamp beads are arranged in one row, and the other two of the red light LED lamp beads, the green light LED lamp beads, the blue light LED lamp beads and the white light LED lamp beads are arranged in the other row. The arrangement mode of the plurality of light-emitting lamp beads ensures that the light-emitting lamp beads of each color cannot be concentrated in a certain specific area, so that the color uniformity of the whole light-emitting surface is realized, more consistent and more uniform lighting effect is provided, and more natural and more uniform synthetic white light is generated.

The invention discloses a coated reflecting film based on an organic fluorescent coating and a preparation method of the coated reflecting film, tetra (4-aminophenyl) methane and tetra-(4-formyl-(1, 1-biphenyl)) ethylene are used as reaction monomers to prepare a novel topological structure [4 + 4] COF (3D-TPE-COF) with a tetraphenylethylene (TPE) unit, and the novel topological structure [4 + 4] COF (3D-TPE-COF) is used for preparing the reflective film based on the organic fluorescent coating. The covalent organic framework material 3D-TPE-COF is added into coating liquid as a fluorescent material to prepare a coating reflecting film based on an organic fluorescent coating, and the obtained reflecting film can convert high-energy blue light, so that the brightness of light emitted by a backlight module is higher and closer to white; meanwhile, the 3D-TPE-COF fluorescent material and the polymer particles can form hydrogen bonds in the coating liquid to avoid aggregation of the polymer particles, so that the wear resistance and scratch resistance of the coating reflecting film are improved.

A home appliance includes: a cabinet defining a storage space, and a door comprising (i) a door body configured to open and close the storage space and (ii) a panel assembly disposed at the door body. The panel assembly includes: a panel defining a front surface of the door and through which light is transmitted, a lighting device disposed at a rear side of the panel and configured to irradiate the light through the panel with a set color, an upper bracket supporting the panel from an upper side of the panel, and a lower bracket supporting the panel from a lower side of the panel. At least one of the upper bracket or the lower bracket includes a bracket protrusion that protrudes to face and cover an upper end or a lower end of the panel to thereby block the light from the lighting device.

A combination axial fan and LED lighting system configured to fit into the footprint of a standard ceiling tile. The system includes a housing container and an axial fan. The fan has a fan cavity including air diversion mechanism to direct air from the fan cavity toward the lighting and fan components. The invention includes an airflow surface to direct air existing the fan cavity along an LED light fixture.

The utility model discloses a light source packaging assembly, a light-emitting assembly thereof, a lighting device and an intelligent control system, the light source packaging assembly comprises a light mixing unit, and the light mixing unit packages a light source module according to a single-light-color and / or multi-light-color light source; the light source module comprises a first light-emitting unit which emits red and white light, and the red and white light is in a quadrilateral area in a CIE1931 color space; the second light emitting unit emits sky-blue light, and the sky-blue light is in a quadrilateral area on the CIE1931 color space; the third light emitting unit emits light green light, and the light green light is in a quadrilateral area on the CIE1931 color space; at least one of the first light-emitting unit, the second light-emitting unit and the third light-emitting unit emits light, and light emitted by the light-emitting units in the light source module is mixed to obtain emergent light. The utility model provides a novel three-primary-color light source which is freely matched and mixed, so that a dynamic high-quality white light illumination effect is realized, and the illumination device with a pattern display function is obtained.

The present technology relates to a lighting control device that enables effective use of a roof light disposed along the outer periphery of a roof window of the vehicle, a lighting control method, and a vehicle. A lighting control device includes a light control unit that controls a roof light disposed along the outer periphery of a roof window of a vehicle, on the basis of at least one of a state of the vehicle, a situation around the vehicle, a situation inside the vehicle, or an operation on the vehicle. The present technology can be applied to a vehicle that has a roof window, for example.

A lighting device (10) is provided. The lighting device (10) comprises: a light emitting element (11), and a translucent envelope (20) enclosing the light emitting element (11) and having a surface area at least three times bigger than the light emitting area of the light emitting element (11), wherein the envelope (20) is coated with a layer (22) of phosphor with a thickness of 0.05-1.0 mm and the layer (22) of phosphor is configured to block less than 30% of the visible light emitted by the light emitting element (11).

An illumination system is provided, having a handpiece with an illumination unit and a semiconductor lighting element which provides a radiation of essentially blue light in the wavelength between 400 nm and 500 nm, and a light guide unit connectable to the handpiece. The light guide unit includes a fiber-optic light guide rod, having a proximal end face and a distal end face, and a sleeve. The fiber-optic light guide rod is fixed in the sleeve by a first adhesive in a portion of the proximal end face. The light guide unit has a converter, for converting the radiation of a semiconductor lighting element in the operating state into a distal radiation of the fiber-optic light guide rod at its distal end face. The distal radiation in the operating state has essentially white and / or color-neutral light, or colored light, a wavelength in the visible spectral range.

A lighting device includes a light source including at least two types of light emitting elements with different color temperatures, an optical element including a plurality of liquid crystal cells and configured to control a distribution of light emitted from the light source, and a control unit configured to control the light source. The control unit controls the optical element to change from a first light distribution state to a second light distribution state different from the first light distribution state. The control unit controls the light source so that a color temperature of light emitted in a direction perpendicular to a surface of the optical element is the same in the first light distribution state and the second light distribution state.

According to an aspect, an illumination device includes: a light distribution controller having a light distribution control region in which a transmission region of light is changeable; a plurality of types of light sources each disposed at a position facing the light distribution controller; and a controller configured to control operation of the light distribution controller and the plurality of types of light sources. The light distribution controller includes a plurality of liquid crystal panels stacked in a facing direction of the light distribution controller and the light source.

A refrigerator includes a cabinet and a door. The door includes a door body in which an insulating material is filled and a panel assembly detachably mounted on the door body. The panel assembly includes a panel which is configured to define a front surface of the door and through which light is transmitted, a back cover configured to define a rear surface of the panel assembly, a lower bracket configured to define a bottom surface of the panel assembly, and a lighting device mounted on the lower bracket to emit light to the panel. A bracket opening through which the lighting device is accessible is defined in the lower bracket.

A refrigerator includes a cabinet, in which a storage space is defined, and a door configured to open and close the storage space. The door includes a door body and a panel assembly mounted in front of the door body. The panel assembly includes a lighting device configured to irradiate light, a panel which is configured to define a front surface of the door and through which light is transmitted, a light guide plate provided behind the panel to guide the light irradiated from the lighting device to the panel, and an upper bracket provided above the panel to define a top surface of the panel assembly. The light guide plate extends more upward than an upper end of the panel, and an extending upper end of the light guide plate is accommodated in the upper bracket.

The preset invention relates to a home appliance comprising: a cabinet having a storage space formed therein; a door for opening or closing an opened front surface of the cabinet; and a panel assembly mounted on a front surface of the door, wherein the panel assembly comprises: a front plate which forms the outer appearance of the door front surface and through which light passes; a light guide plate provided behind the front plate to guide light toward the front plate; and a lighting device including a plurality of light sources for emitting light having a configured color toward the light guide plate and a substrate on which the plurality of light sources are arranged, and the front plate is formed at one end adjacent to the lighting device and includes an inclination portion having an inclination surface formed to extend in a direction parallel to a direction in which the light sources are arranged.

The invention discloses high-efficiency fluorescence conversion glass based on nitride red fluorescent powder composite binary germanium-phosphorus glass and a preparation method thereof, the high-efficiency fluorescence conversion glass is successfully prepared by taking binary germanium-phosphorus glass with specific components as a substrate and red nitride fluorescent powder as a luminescent material through low-temperature rapid sintering by a spark plasma sintering (SPS) technology. The fluorescent glass comprises the following raw materials: nitride red fluorescent powder and precursor glass powder, the precursor glass powder is prepared from the following raw materials in percentage by mole: 26 to 48 mol percent of GeO2 and 52 to 74 mol percent of P2O5, and the mass of the nitride red fluorescent powder is 1 to 7 percent of the mass of the total powder. Through a specific preparation process, the high-efficiency luminescence property, excellent thermal stability and high laser irradiation threshold value of the fluorescent glass are realized, and the high-performance requirement of laser illumination is met. Meanwhile, the preparation method is simple in preparation process, green, environment-friendly and low in production cost, and has a wide application prospect.

An illumination device includes: a light source part emitting light; a light distribution shape setter setting a light distribution shape of light from the light source part; a storage storing therein light distribution shape data related to the light distribution shape; and a controller controlling the light distribution shape setter based on the light distribution shape data. Further, the light distribution shape setter sets the light distribution shape based on a signal level input from the controller, and when changing the signal level input to the light distribution shape setter from a first level to a second level, the controller changes the signal level from the first level to a third level that is a level between the first level and the second level, and changes the signal level from the third level to the second level after maintaining the third level for a predetermined time period.

The invention provides in embodiments a light generating system (1000) comprising a first light generating device (100), a first luminescent material (210), and a second luminescent material (220), wherein: A) the first light generating device (110) is configured to generate first device light (111), wherein the first light generating device (110) comprises a first light source (10) selected from the group of a superluminescent diode and a laser; B) the first luminescent material (210) comprises a line absorber and line emitter luminescent material providing a first luminescent material emission (211) comprising a line emission at a first wavelength (λL,1) upon excitation with the first device light (111); C) the second luminescent material (220) comprises a broad band emitter luminescent material providing a second luminescent material emission (221) comprising a broad band emission upon excitation with the first device light (111), wherein the second luminescent material emission (221) has a second centroid wavelength (λLC,2), wherein |λL,1-λLC,2|≤20 nm; D) the first light generating device (110) is configured to pump one or more of the first luminescent material (210) and the second luminescent material (220) with the first device light (111); and E) the light generating system (1000) is configured to generate system light (1001) comprising one or more of the first luminescent material emission (211) and the second luminescent material emission (221).

The light source module comprises a first light-emitting unit, a second light-emitting unit, a third light-emitting unit and a fourth light-emitting unit which are electrically independent from one another, and light emitted by the light-emitting units is mixed to form white light. By selecting the light color and spectral characteristics of the light emitting unit, the white light color temperature coverage range obtained by the light source module is wide, the color deviation Duv value is smaller than 0.003, and therefore the white light color deviation problem is solved. Meanwhile, the white light spectrum of the light source module simulates a target spectrum, and when the relative color temperature is more than 4000 K, the target spectrum is a sunlight spectrum; and when the relative color temperature is lower than 4000 K, the target spectrum is a blackbody radiation spectrum. Due to the fact that the spectrum simulates sunlight or a black body radiation spectrum, the obtained white light spectrum has good spectrum similarity and color rendering, the light color of the white light of the module is closer to sunlight, the light quality performance of the white light source is obviously superior to that of an existing double-color-temperature light mixing white light source, and the module is more suitable for the field of general illumination.

The embodiment of the invention provides a light machine, a vehicle lamp module and a vehicle, and belongs to the technical field of light machines. The ray machine comprises a light source unit, an imaging unit, a reflection unit, a lens and an integrally-formed machine body. The machine body is provided with a first opening, a second opening, a third opening and a fourth opening, and any one of the first opening, the second opening, the third opening and the fourth opening is communicated with the inside and the outside of the machine body. The light source unit is arranged at the first opening and connected with the machine body, the reflection unit is arranged at the second opening and connected with the machine body, the imaging unit is arranged at the third opening and connected with the machine body, and the lens is arranged at the fourth opening and connected with the machine body. According to the light machine provided by the embodiment of the invention, the light source unit, the reflection unit and other devices are borne by the machine body, so that the number of parts of the light machine can be reduced, and the production efficiency of the light machine can be improved.

A vehicle lighting equipment that irradiates light around a vehicle includes: a first light source, a first scanning mirror, and a first lens disposed on an upper side relative to a second light source, a second scanning mirror, and a second lens, in a vertical direction of the vehicle, and a phosphor plate including a first region on an upper side and a second region on a lower side in the vertical direction, where a first laser light passing through the first scanning mirror and the first lens is irradiated onto the second region of the phosphor plate, and a second laser light passing through the second scanning mirror and the second lens is irradiated onto the first region of the phosphor plate, and where a light generated from the phosphor plate is projected by a projection lens.

The invention discloses an LED dimming system and method, and the system comprises a white light LED which is used for emitting a spectrum in a 400-650 nm wave band; at least three red light LEDs of blue light excitation fluorescent powder respectively emit red light with different central wavelengths, the central wavelength of the first red light LED is 660nm + / -2nm, the half-peak width is less than or equal to 15nm, and an I < n > GaA < l > P material vertical cavity surface emission structure is adopted; the central wavelength of the second red light LED is 730nm + / -3nm, the half-peak width is less than or equal to 20nm, and the second red light LED adopts an A < l > GaAs material quantum well structure; the center wavelength of the third red light LED is 780nm + / -5nm, the half-peak width is less than or equal to 25nm, and a GaAsP material gradient refractive index waveguide structure is adopted; the driving control module comprises three independent constant-current driving units which are used for respectively controlling the current and PWM duty ratio of each red light LED; the optical mixing module is composed of a two-stage integral rod and a micro lens array and is used for realizing uniform mixing of spectrums.

The invention discloses a lighting source and a lighting device. The illumination light source comprises at least one light emitting diode chip emitting light of at least two wave bands; the emergent light at least comprises a plurality of wavelengths in the wave band of 420-740 nm and has spectral continuity; and the optical fiber at least comprises two characteristic wavelengths, and the two characteristic wavelengths comprise at least one of the wavelength of 470-520 nm and the wavelength of 540-600 nm. The light-emitting diode chip capable of emitting at least two wave bands is adopted to obtain the illumination light source, the full-spectrum continuity characteristic is achieved, the color rendering indexes R1-R15 are very high, the reduction degree of an article at night is very high, the recognition capacity of travelers at night is improved, the illumination light source further has several prominent characteristic wavelengths on the basis of the full spectrum, and the illumination light source has the good illumination effect. The LED lamp has the advantages of being high in light and shade visual lighting effect, high in road surface reflectivity, high in rain, fog and haze penetrability and high in alertness, the outdoor lighting safety is comprehensively considered, and the night travel safety is guaranteed.

The utility model provides a photography and video recording lamp, the photography and video recording lamp comprises a lamp main body, a light source, an electric control light adjusting film and a power supply module, the electric control light adjusting film is arranged on a light emitting path of the light source, and light emitted by the light source can be emitted from the surface of the lamp main body through the electric control light adjusting film. The color depth of the electric control dimming film can be changed according to the received voltage value so as to change the brightness of the color of the light emitted after passing through the electric control dimming film; therefore, a user can adjust the brightness of the emitted light without replacing color filters with different light transmittances, the photography and video recording lamp is simple in overall structure and convenient to operate, different photography requirements and the fast pace of a photography site can be well met, and the high-quality use experience of the user is guaranteed.

To provide a light-emitting device having a high luminance region and a low luminance region into a light-emitting surface.SOLUTION: A light-emitting device includes a plate-like translucent member having a light-emitting element, a lower surface which is disposed on the light-emitting element and light emitted from the light-emitting element enters, and an upper surface on the side opposite to the lower surface, where the upper surface of the translucent member is a light-emitting surface. The translucent member includes: a first translucent part that contains a first sinter body containing a phosphor particle; and a second translucent part that contains a second sinter body containing a light diffusion particle. A relative density of the second sinter body is 70% or more and 95% or less. The light-emitting surface includes: (i) a first light-emitting region where the light is emitted via the first translucent part; and (ii) a second light-emitting region where the light is emitted via the second translucent part, and which has luminance lower than that of the first light-emitting region.SELECTED DRAWING: Figure 3

To provide an optical fiber light source having high spectral wavelength flexibility and enabling incoherent continuous-wave output in a single transverse mode.SOLUTION: An optical fiber light source has: an optical fiber having a first end, a second end, and a tapered part positioned between the first and second ends, which is a single mode fiber; a wavelength conversion part; a light source for exciting the wavelength conversion part; and a support part. The first end outputs radiant light emitted from the excited wavelength conversion part. The tapered part includes: a constricted part; a first tapered region in which a diameter gradually decreases from the second end side toward the constricted part; and a second tapered region in which a diameter gradually increases from the constricted part toward the first end side. The constricted part has a diameter smaller than those of the first and second ends, and has a size of the wavelength or less of the radiant light. The wavelength conversion part is composed of liquid or gas and is disposed so as to surround at least an outer periphery of the constricted part of the tapered part. The light source simultaneously excites the outer peripheral portion surrounding the wavelength conversion part.SELECTED DRAWING: Figure 2

To provide a light-emitting device having a sharp peak in a wavelength range with a peak wavelength therebetween.SOLUTION: A light-emitting device includes: a plurality of solid-state light sources that emit light having a different peak wavelength from each other and are mounted on a substrate having a wiring pattern; and a phosphor having a fluorescent material, disposed in a traveling direction of the light emitted from the plurality of solid-state light sources and capable of transmitting the light emitted from the plurality of solid-state light sources. A first solid-state light source of the plurality of solid-state light sources is a light source having a peak wavelength in a range of 280 nm or less, and a second solid-state light source different from the first solid-state light source of the plurality of solid-state light sources is a light source having a peak wavelength between 420 nm and 470 nm.SELECTED DRAWING: Figure 1

The invention relates to the technical field of cultural relic exhibition and protection, in particular to a dynamic cultural relic display cabinet based on a mixed reality technology. The display cabinet comprises a cabinet body assembly used for forming a closed cabinet body and placing and displaying exhibition articles, a light assembly used for illumination and illumination adjustment in the cabinet body assembly, a virtual projection assembly used for dynamic observation and display of the exhibition articles in the closed cabinet body, and a monitoring sensing assembly used for monitoring environment data in the cabinet body assembly and controlling the closed environment state. And the networking control assembly is used for uniformly managing all the cabinet body assemblies and accessories thereof in the area. A closed and controllable environment is formed through facilities such as a transparent protective cover, a thermostat and a dryer, cultural relics are effectively prevented from being damaged by environmental factors such as temperature and humidity and dust, the safety of the cultural relics is guaranteed, dynamic three-dimensional display of the cultural relics is achieved through a mixed reality mirror, a projector and a holographic projection cover, immersive and interactive exhibition experience is brought to audiences, and the intellectualization of the cultural relics is achieved. And the exhibition attraction is improved.

The invention provides a light generating system (1000) configured to generate system light (1001), wherein the light generating system (1000) comprises a first light generating device (110), wherein: (A) the first light generating device (110) comprises a first light source (10) and a first luminescent converter (210); (B) the first light source (10) comprises a solid state light source, wherein the first light source (10) is configured to generate first light source light (11) having a first light source centroid wavelength (λs,1) selected from the range of 380-420 inn; (C) the first luminescent converter (210) is configured to convert at least part of the first light source light (11) into first converter light (211) having a first converter centroid wavelength (λc, 1) selected from the green-yellow wavelength range; (D) the first light generating device (110) is configured to generate first device light (111) having a spectral power distribution in the wavelength range of 380-780 nm with at least 60% of the spectral power provided by the first light source light (11) and at maximum 40% of the spectral power provided by the first converter light (211).