126results about "Point-like light source" patented technology

An illuminating device includes a housing and an illuminating module mounted in the housing. The housing defines a sealed space that includes a light-transmitting plane on an end thereof. The illuminating module includes a circuit board and lighting elements mounted on the circuit board. The housing includes a housing body and a cap. The housing body includes an open first end, and the cap is mounted to and covers the open first end of the housing body, with the circuit board of the illuminating device being sandwiched between an engaging area between the cap and the housing body. Thus, the heat generated by the illuminating module can be conducted to the housing, providing improved heat-dissipating effect.

LED lamp assembly particularly adapted for automotive applications that utilizes one or more standard replaceable LED bulbs with changeable optics to make multiple beam patterns. Preferably the optic is molded and easily replaced. An electric module is mounted directly under the LED to facilitate the electrical connection and provide good thermal contact. The LED light source(s) and interchangeable optic are positioned and sealed in the base of a main reflector or the vehicle hull by means well known to those skilled in the art.

A beam adjustment mechanism for a light fixture includes a frame assembly having an aperture substantially within the center thereof. Multiple peripheral lighting units engage the sides of the frame assembly. Each lighting unit includes an LED, a heat sink, and a reflector member. A central connecting member and/or a central lighting unit is at least partially surrounded by the peripheral lighting units. The central connecting member and/or central lighting unit is hingedly connected to at least one of the peripheral lighting units. An adjustment shaft extends through and is moveably engaged with the aperture of the frame assembly. Movement of the adjustment shaft relative to the aperture exerts a force on the central connecting member and/or central lighting unit, which causes the hingedly connected peripheral lighting units to pivot relative to the central connecting member and/or central lighting unit.

A light transforming method and device that includes a lens having one or more specifically shaped surfaces designed to generate an output image by directing the appropriate amount of electromagnetic energy from a pseudo-collimated beam to the required regions of the output image for the purpose of recreating the output image. An LED is collimated to produce the minimum spot size at the projection plane reasonably achievable and the pseudo-collimated light source impinges on the image shaping lens surface(s) such that the light is redistributed in correct proportion and angle to generate the predetermined output image. The image generating surface of the present invention is defined by a multitude of triangular facets that define a free-form surface shape such that when the energy distribution pattern exits the free-form surface the output image closely resembles the required output distribution pattern.

A light emitting diode (LED) unit has a pair of substrates, an LED and a pair of brackets. The substrates are separated from and serve respectively as positive and negative electrodes. The LED is mounted on the substrates and has a pair of terminals mounted respectively on the substrates. The brackets serve respectively as positive and negative electrodes, are made of pliable and flexible metal and are mounted respectively on and electrically connected respectively to the substrates. At least one of the brackets serves as at least one three-dimensional (3D) bracket being non-flat. The 3D brackets are easily customized into various configurations by bending or stamping semi-finished 3D brackets to fit internal chambers or cavities of different lights such as vehicle lights. Accordingly, the cost of the LED modules is effectively lowered.

Solar-powered lighting devices that may be portable and/or collapsible are described. The devices may include a housing including a first wall, a second wall, and one or more side walls between the first wall and the second wall, at least one solar panel to generate solar energy, and a rechargeable battery to store the solar energy generated. The devices may include a plurality of operating modes for controlling lights within the housing, and a microprocessor for controlling the operating modes.

A method, apparatus and system for electrical simulation of a flame that provides for the projection of light that is a mixture of at least two colors. At least one of the two colors of light is projected over time according to a complex light intensity pattern. The complex light intensity pattern is constructed via an aggregation (superimposition) of a plurality of independent intensity transition signals. Each intensity transition signal represents a separate and varying intensity pattern. The complex light intensity pattern creates a perceptually real and pleasing visual effect upon the human eye, much like that created by the flickering of a real combustion flame and employs other than random or pseudo random intensity patterns.

The systems and methods described herein relate to solid-state light sources capable of generating radiation beams for, but not limited to, the treatment of surfaces, bulk materials, films, and coatings. The solid-state ultraviolet source optically combines the light output of at least two and preferably as many four independently controllable discrete solid-state light emitters to produce a light beam that has a controllable multi-wavelength spectrum over a wide range of wavelengths (i.e. deep UV to near-IR). Specific features of this light source permit changes in the spectral, spatial and temporal distribution of light for use in curing, surface modification and other applications.

The invention provides a mixed-light-source liquid-crystal projection light engine system. The portable liquid-crystal projection light engine system is composed of a light source module, a polarized light management module, an image signal module and a projection lens, wherein the light source module consists of a high-brightness laser, an incoherent LED (Light-Emitting Diode) solid light source, a fluorescent device and the like. The output brightness of the projection system is greatly increased, the light source module is safe and environmentally friendly, and projected images have bright color and clear quality. The polarized light management module consists of a color-combining prism, a polarization beam splitter (PBS), a polarization color-combining device and the like, and different polarization states of three-primary-color mixed light are integrated into the same polarized light to be emitted to the image signal module. The image signal module is a monolithic reflection type liquid crystal light modulation device, and image signals are loaded to the three-primary-color polarized light in sequence according to the image signals corresponding to primary colors. The projection lens is used for projecting the light carrying the image signals onto a screen.

In a laser module (310), single-emitter laser diode chips (110) are positioned at different heights on opposite sides of the module's combined output beam (114). Each laser diode chip (110), and its corresponding fast and slow axis collimators (130, 134), and turning mirror (140) are positioned on a corresponding heat-dissipating surface region (340). High thermal stability and output power are obtained in some embodiments even if the modules are combined to obtain higher-level modules (310-2). Other features and embodiments are also provided.

A light emitting diode lamp includes a lampshade and a light source. The lampshade is a portion of a hollow ellipsoid with one focus of the ellipsoid located therein. The lampshade is symmetric to a major axis of the ellipsoid. The lampshade has a vertex located on the major axis and defines a light extraction opening at one end thereof opposite to the vertex. A reflecting layer is formed on an inner surface of the lampshade. The light source is received in the lampshade and localized at the one focus of the ellipsoid. The light source includes a plurality of light emitting diodes facing the inner surface of the lampshade and the light extraction opening, respectively.

A lens member includes at least one of the annular prisms including a facet at an edge between an inner annular surface and an outer surface of the at least one of the annular prisms. The prisms with facets may be provided at a central portion of the lens member and the facets are configured to refract light toward a light-exit side of the lens member.

An illumination apparatus of the present invention quickly adjusts illuminance of the light radiated from the light source in the irradiation surface to have high uniformity. The illumination apparatus includes the light source that emits a light beam having a rectangular shape, a DMD on which light emitted from the light source is incident and which controls reflection/non-reflection of the incident light by opening/closing control of minute mirrors, an optical system that shapes the light reflected by the DMD, a half mirror that splits the light emitted from the optical system into irradiation light and monitor light, the irradiation surface irradiated with the irradiation light, a monitor unit that measures illuminance of the monitor light, and a control unit that transmits a control signal to control opening/closing of the minute mirrors of the DMD to the DMD, based on a measurement result measured by the monitor unit. In this case, an illuminance distribution in the irradiation surface is adjusted to a predetermined value.

The invention discloses a multifunctional integrated solar energy and wind energy monitoring street lamp which comprises a lamp pole, an integrated solar energy and wind energy monitoring street lamp device and a support for installing the integrated solar energy and wind energy monitoring street lamp device. The integrated solar energy and wind energy monitoring street lamp device comprises a control box, a solar power generation device, a wind power generation device, an automatic photovoltaic board cleaning device, an electric storage device, a camera and an LED lamp. The camera is connected with a mini-type network monitoring emission processor. LED screens are arranged on the periphery of the control box. The control box is installed on the lamp pole through the support. The multifunctional integrated solar energy and wind energy monitoring street lamp is compact in structure, small in occupied area, multifunctional and capable of greatly facilitating work and life of people; a solar photovoltaic board and a wind power generator supply power, energy is saved, and environment friendliness is achieved; the LED screens are installed to be used for advertising, a network monitoring system can remind a traffic management department in time to adjust the traffic vehicle jam condition, and road traffic safety is facilitated.

The invention discloses an intelligent luminous cup. The intelligent luminous cup comprises a cup body, wherein a containing space is arranged on the cup body. The containing space is provided with a luminous element arranged inside and used for emitting light, a battery providing power for the luminous element through a closed loop circuit, an electronic control switch arranged in the closed loop circuit and used for controlling on and off of the closed loop circuit, and an acceleration sensor which detects an acceleration signal or an inclination angle signal of the cup body, simultaneously translates the acceleration signal or the inclination angle signal into an electric signal, and sends the electric signal as a control signal to the electronic control switch. According to the intelligent luminous cup, due to the fact the acceleration sensor is arranged in the cup body, the cup can achieve intelligent luminescence when the cup inclines or generates acceleration, does not need artificial control, and is convenient to use, ingenious in design, suitable for a variety of joyous occasions such as bars, wedding feasts, parties and the like, and strong in practicability.

A light source device includes a first light source that emits light of a first polarization, and a second light source that emits light of a second polarization whose polarization direction is different from the light of the first polarization by 90 degrees. A combined wavelength band of the light of the first polarization and the light of the second polarization is a first wavelength band. A third light source emits light of a third polarization and of a wavelength band which is different from the first wavelength band, and a fourth light source emits light of a fourth polarization whose polarization direction is different from the light of the third polarization by 90 degrees. A combined wavelength band of the light of the third polarization and the light of the fourth polarization is a second wavelength band which is different from the first wavelength band. A reflecting element reflects the light of the first polarization. A first selective transmission element transmits the light of the first polarization and reflects the light of the second polarization based on the polarization direction of the light. A second selective transmission element transmits combined light of the light of the first polarization and the light of the second polarization, and reflects the light of the third polarization based on the wavelength band of the light. A third selective transmission element transmits the combined light of the light of the first polarization and the light of the second polarization based on the polarization of the wavelength band, transmits the light of the third polarization and reflects the light of the fourth polarization based on the polarization direction of the light. The light of the first polarization, the light of the second polarization and the light of the third polarization passing through the third selective transmission element, and the light of the fourth polarization reflected by the third selective transmission element proceed in the same direction.

A heat dissipation unit for LED bulb includes a base seat formed with a receiving cavity and a base section, a first heat dissipation member having multiple heat dissipation sections and a perforation, a second heat dissipation member and a retainer member. The heat dissipation sections of the first heat dissipation section are arranged around the perforation. Each heat dissipation section has a first side attached to the base section and a second side. A first through hole is formed in the receiving cavity in communication with the receiving cavity and the perforation. The second heat dissipation member is formed with a second through hole and a spreading section attached to the second side of the heat dissipation section. The retainer member is fitted in the first and second through holes and the perforation to integrally connect the base seat with the first and second heat dissipation members.

The invention relates to a luminous device, a cooling method thereof and a projector, wherein the luminous device comprises a light source, a detection unit, a cooling unit and a control unit, wherein the detection unit is connected to the light source and used for detecting current value and voltage value of the light source; the cooling unit is arranged close to the light source and used for cooling the light source; and the control unit is arranged between the detection unit and the cooling unit, and adjusts the cooling unit according to the current value and the voltage value. The invention can effectively reduce the response time and noise of the cooling unit, and avoid the damage to light sources with high heat value in the luminous device.

A light bulb includes a glass bulb having a top part and a bottom part which is connected to the top part. A light unit is located in a space defined between the top and bottom parts. The light unit has a transverse circuit board and at least one upright circuit board. Multiple Light Emitting Diodes are connected to the top surface and the bottom surface of the transverse circuit board. The at least one upright circuit board is connected to the top surface of the transverse circuit board. Multiple Light Emitting Diodes are connected to the outside surface of the at least one upright circuit board.

The light beams from the Light Emitting Diodes go through the glass bulb and toward different directions.

The invention relates to a backlight system containing a free-form surface reflector. The backlight system comprises light sources (1) and a backlight cavity (3), wherein the bottom of the backlight cavity (3) is a free-form surface reflecting plane (2) with high reflectivity, the backlight cavity (3) is formed by a side wall, the bottom free-form surface reflecting plane (2) and a diffusion barrier (5) arranged on the top of the backlight cavity (3), a brightness enhancement film and other optical film layers and a LCD panel are arranged on the diffusion barrier (5); the light sources (1) are arranged on the bottom of the backlight cavity (3), positioned in line and installed on the axis of the free-form surface reflecting plane (2); and a transflective optic plate (4) is arranged just above the light sources (1) in the backlight cavity (3). The backlight system of the invention has the advantages that the illuminance is uniform, the overall thickness of the system is thin, the luminous efficacy is high, and the system has the advantage of being convenient to install and cool.

The invention is related to a structure of a light emitting diode lamp tube, comprising: a lamp tube housing; a circuit board; a supporting seat; a lamp bar; a second connecting seat; and a lamp shade. The circuit board is positioned in the accommodation space of the lamp tube housing, the supporting seat is slidingly combined with convex lugs of the side cover of the lamp tube housing to cover the accommodation space; the supporting seat has an opening, which allows the first connecting seat of the circuit board to be exposed by the opening. The lamp bar is positioned on the supporting seat; the second connecting seat is electrically connected with the lamp bar and the first connecting seat, and the lamp shade is combined with the lamp tube housing to form the exterior of the lamp tube. By hiding the circuit board used for power conversion in the lamp tube housing, electronic components on the circuit board can carry out heat radiation by utilizing the lamp tube housing; then, the service life of the light emitting diode lamp tube can be prolonged.

A light-emitting diode (LED) lamp comprises a lamp holder which is like a hollow cavity and is provided with an opening, an LED module arranged in the cavity of the lamp holder and a lampshade covering the opening of the lamp holder and the LED module. The lamp holder comprises a lengthwise groove-shaped installation rack and two baffles respectively arranged at two opposite ends of the installation rack. Two accommodating grooves respectively positioned at two opposite sides of the installation rack are arranged at the top of the installation rack. A base plate is stuck between each baffle and the installation rack. The tops of the base plates, the end edge of the lampshade and the tops of the baffles encircle two grooves together. The two grooves are respectively positioned at two opposite ends of the opening of the lamp holder. The grooves and the accommodating grooves surround the opening of the lamp holder and accommodate sealing glue so as to connect the lampshade and the lamp holder in a sealed manner. Compared with the prior art, the invention is characterized in that the structures of the accommodating grooves and the grooves ensure the sealing glue to be uniformly distributed, thus improving the overall sealing property of the lamp and being not easy to befoul the transparent lampshade so as to affect the lighting effect and the appearance of the lamp.

The invention provides an outdoor lighting device. The outdoor lighting device includes: a light source driving circuit board, on which a light source driving circuit is arranged; a light source board, on which a light emitting diode light source electrically connected to the light source driving circuit is installed, and the light emitting diode light source A plurality of light-emitting diodes are included, and the plurality of light-emitting diodes include small light-incidence-angle light-emitting diodes. The outdoor lighting device has the advantages of simple structure, low micro-current power consumption, no heat generation, strong anti-interference ability to power supply, explosion-proof function, long life without maintenance, good versatility, low cost, long-term lighting does not affect eye health, etc., mainly The performance parameters meet the requirements of relevant national standards, and the produced light-emitting diodes with small beam angles can be used in the lighting system, which greatly reduces the production cost and does not need to discard the light-emitting diodes with small beam angles.

The invention relates to a large-power forward LED chip structure comprising a transparent passivating layer, a P pressure welding point, a transparent electrode layer, an N electrode, an LED epitaxial layer, a sapphire substrate and a reflection solder layer, wherein the surface of the reflection solder layer forms a DBR optical reflection layer in the mode of optical coating; and the bottom of the reflection solder layer is provided with a high heat conduction substrate layer. The large-power forward LED chip of the invention combines the heat conduction substrate with the DBR optical reflection film to solve the problem of heat dissipation and light emitting efficiency improvement for the large-power LED chip when high-current density is small.