39results about How to "Improve lighting experience" patented technology

The invention relates to an LED constant current driving device which comprises a rectifying module, a control module, a constant current module and a lighting module, wherein the output end of the rectifying module is respectively connected with the control module and the lighting module; the constant current module is arranged between the control module and the lighting module; the lighting module comprises N LED units which are connected in series in sequence; the constant current module comprises a current limiting circuit, a sampling circuit and a compensating circuit; in the monotone increasing or monotone decreasing process of the output voltage of the rectifying module, the N LED units which are connected in series in sequence are conducted one by one or quenched one by one; when at least one LED unit is conducted, the control module outputs a control voltage according to the voltage generated by the compensating circuit and the sampling circuit together to control the current limiting circuit to decrease or increase the current conducted onto the LED unit, so as to enable the power of the conducted LED unit to keep stable.

An LED strip light for shelf signboards, comprises a strip-shaped lamp chamber, and an LED light-emitting module. The strip-shaped lamp chamber comprises a card board connecting edge, a non-transparent edge, an upper transparent edge and a lower transparent edge. The LED light-emitting module comprises at least one LED chip, and a strip-shaped lens. The strip-shaped lens includes an incident surface, a first fully reflecting surface, a second fully reflecting surface, a refractably reflecting surface. The first fully reflecting surface reflects all the incident lights thereon toward the upper light transparent edge. The second fully reflecting surface reflects all the incident lights thereon toward the refractably reflecting surface. And the outgoing light of the refractably reflecting surface is directed toward the lower transparent edge. The LED strip light for shelf signboards allows the display side placed on the board to be illuminated so as to improve the user's desire to shop, and to illuminate the boundary between the laminates and the column, and it can improve user experience and save energy and reduce costs.

The present invention discloses an intelligent household table lamp. The intelligent household table lamp comprises a base, wherein a connecting piece is fixedly connected to the top of the base, a lamp pole is fixedly connected to the top of the connecting piece, a lampshade is movably connected to the top of the lamp pole, an LED lamp is movably connected to the bottom of an inner cavity of thelampshade, and a smoke detector and a temperature detector are fixedly connected to the top of the right side of the lamp pole from top to bottom in sequence. According to the intelligent household table lamp of the present invention, through the cooperation of the base, the connecting piece, the lamp pole, the lampshade, the LED lamp, the smoke detector, the temperature detector, a control panel,a single-chip microcomputer, a WIFI connector, a wireless transmitter, a brightness adjuster, the loudspeaker and a storage battery, the following problems have been solved: the existing intelligenttable lamp has more functions, but does not have a fire warning function, when a residential user goes out and a fire breaks out in the home, the user can not know the fire situation in the house, when a neighbor or other person discovers a fire and reports an alarm, the fire situation has been severe, resulting in significant economic loss to the user.

A light distribution system of an LED lamp comprises an irradiated plane, a light source module and a reflection board. The irradiated plane has a vertical direction. The light source module includes a lens. The lens is provided with a light axis and a light emitting face. The light emitting face has a first contour line and a second contour line, wherein the light axis serves as the symmetrical axis of the first contour line and the second contour line. On the section constituted with the light axis in the vertical direction, reflected light from the first contour line irradiates toward one side of the light axis after reflected by the reflection board, and reflected light from the second contour line irradiates toward the two sides of the light axis after reflected by the reflection board. Reflected light of the reflection board irradiates toward the irradiated plane. By means of the lens, the reflection board and the matched effect between the lens and the reflection board, objects on the upper layer and objects on the lower layer of the irradiated plane obtain the same illuminance, accordingly, the light using experience of users can be improved greatly, and the shopping desire of the users is increased.

A light distribution system for freezer that includes a LED strip light disposed on a freezer door. The LED strip lamp includes a lamp holder, a strip-shaped polarizing lens, and a plurality of LED chips. The lamp holder includes a lens setting surface and a reflecting surface. The strip-shaped polarizing lens includes a plurality of optical axis, an incident surface, a first and second convex lens exit surfaces, and a transition surface. An angle between the illuminated surface and the optical axis includes an acute angle and the illuminated surface includes a main light region illuminated by the outgoing light of the first and second convex lens exit surfaces and a sub-light region illuminated by the reflected light from the reflecting surface.

The invention relates to a lamp demisting device, a lamp, a vehicle, and a lamp demisting method. The device comprises an invisible light emitter, an invisible light receiver, a light emitter and a controller; the invisible light emitter is used for emitting invisible light to an inner surface of a lamp mask of a lamp body; the invisible light receiver is used for receiving the reflected light obtained after the invisible light is reflected by the inner surface of the lamp mask, determining first light intensity of the reflected light, and sending the first light intensity sent by the controller; the controller is used for receiving the first light intensity, and determining the second light intensity corresponding to the light emitter according to the first light intensity when the firstlight intensity satisfies the preset demisting condition, and controlling the light emitter to emit the light to the inner surface of the lamp mask according to the second light intensity. Therefore,the lamp demisting device provided by the invention is good in demisting effect and durable, and excellent corrosion resistance; the demisting cost is reduced, and the problem that the lamp appearanceis influenced due to the corrosion of the sulfur-containing gas is avoided.

The invention discloses a smart home lighting control system, which relates to the field of smart home lighting, comprising: lighting device nodes respectively arranged in at least two rooms; at least one lighting collection device for collecting the lighting intensity of the at least two rooms ; and a control parameter sending module for sending lighting control instructions to the lighting control module of the lighting device node in the first room of the at least two rooms; the present invention collects lighting between two rooms of the user According to the lighting difference, the lighting system in the room is controlled, so that the lighting difference between the two rooms meets the preset requirements, avoiding the user's eye discomfort caused by the lighting difference, reducing eye fatigue, and improving the user's ability to travel through different rooms. The comfort during the process improves the user's smart home lighting experience.

Disclosed are a maximum dimming parameter collection system and method for a lamp group with an unknown rated current. The lamp group comprises one lamp or more lamps connected in parallel at a constant voltage for operation. The maximum dimming parameter collection system comprises a dimming preset limited parameter and rated voltage preset module, an actual dimming parameter value collection module, a judgment module, a working pattern switching module, a limited current working module, an actual current value collection module and a maximum dimming parameter and dimming preset parameter value assignment module. By virtue of the maximum dimming parameter collection system, the maximum dimming parameter I<ref> of the lamp group with the unknown or changeable rated current can be collected in proper time, so that dimming within the full-range at any time is effective, and a phenomenon of a dead region occurring when the dimming amount is greater than 70% or 50% can be avoided, thereby further improving light use experience of a user.

The invention discloses an anti-dazzle reflection cup. The anti-dazzle reflection cup comprises reflection side walls, the reflection side walls form a reflection cavity in a surrounding manner, the reflection cavity is approximately conical, the large end of the reflection cavity is a light outlet, a light source containing position is arranged near the small end of the reflection cavity, a straight line which passes through the light source containing position and is perpendicular to the plane where the light outlet is located is defined as an optical axis, and in any plane passing through the optical axis, a light source placed at the light source containing position comprises a first light beam directly emitted from the light outlet and a second light beam emitted from the light outletafter being reflected by the reflection side walls; and on the same side of the optical axis, the maximum included angle formed by intersection of the first light beam and the optical axis is the maximum direct emergence angle, the maximum included angle formed by intersection of the light emitted from the light outlet after the second light beam is reflected by the reflection side walls and theoptical axis is the maximum reflection emergence angle, and the maximum reflection emergence angle is smaller than or equal to the maximum direct emergence angle. By means of the anti-dazzle reflection cup and the lamp with the reflection cup, excellent lighting experience is brought, and the problems of dazzling and heavy glare are solved.

The invention relates to the technical field of intelligent lighting, in particular to a high-resolution LED dimming control circuit which performs loop control on a high-frequency switching power supply LED drive according to an initial value preset by a control center and outputs a constant-voltage mode if the control circuit is no-load when started. When the control circuit is not in a no-loadstate, when the output current reaches a preset CC_REF value, a constant-current working mode is output. After an external dimming signal is accessed to the DIMM_IN, the control circuit judges the dimming signal, selects a matched mode, and changes the magnitude of the output current by changing the value of the CC_CONTEROL pin to realize dimming. According to the invention, an existing most advanced topological circuit is utilized to realize ultra-high-efficiency power supply driving, a high-efficiency topological structure is avoided, the problems that the illumination effect and the light jitter of the illumination control circuit are influenced when the illumination control circuit works intermittently in an output low-power standby state are solved, the light smoothness is close to the sunrise and sunset effects, and the illumination experience is improved.

The invention provides a flight lamp device. The flight lamp device comprises a housing and a propeller; a central controller and a motor are arranged inside the housing; the motor is fixedly connected to the propeller; an illumination lamp, a power supply switch, a flight switch and a camera are arranged on the housing; one terminal of the power supply switch is connected to a power supply and the other terminal is connected to a central controller; the central controller is connected to an ultrasonic wave sensor, an acceleration sensor, a magnetometer sensor, first Bluetooth, an image processor and a gyroscope; a fixing groove is formed on the housing; a matched user connection device is placed in the fixing groove; the matched user connection device comprises a wearing connection member; the wearing connection member is provided with an operation box; a display screen, a first switch, a microprocessor, an indication lamp, second Bluetooth, a second power supply and an operation device are arrange on the operation box. The flight lamp device can fly at a certain distance away from a person according to the motion of the person and provides illumination, and the flight direction is not limited.

The invention provides a method for fabricating a white-light LED component having a particle size gradient fluorescent adhesive, comprising the steps of S1, fixing a substrate having a blue-light LEDchip; S2, disposing a first chamber above the substrate, and applying the fluorescent adhesive containing fluorescent powder having a large particle size to the first chamber to form a first fluorescent adhesive layer; S3, curing the first fluorescent adhesive layer; S4, disposing a second chamber above the first fluorescent adhesive layer, and applying the fluorescent adhesive containing fluorescent powder having a small particle size to the second chamber to form a second fluorescent adhesive layer; and S5, curing the second fluorescent adhesive layer. A white-light LED component manufactured by the method for fabricating the white-light LED component having the particle size gradient fluorescent adhesive can achieve lower fluorescent powder dosage, high lumen efficiency, and uniformity of color temperature distribution at the same color temperature as a conventional process package structure.

The invention discloses a lighting device, which includes a lighting tool, and is characterized in that: the lighting device also includes a first driving device, a second driving device, a third driving device, and a mounting bracket for installing the lighting tool. One end of the lighting tool is rotatably connected to the mounting bracket with the joint as the center of rotation, and the opposite end is connected to the output shaft of the third driving device, the third driving device is installed on the mounting bracket, and the first driving device The output shaft of the second driving device and the output shaft of the second driving device are respectively directly or indirectly connected to the mounting bracket, the first driving device and the third driving device are both linear drive modules, and the second driving device is a rotary drive module, The output shafts of the first driving device, the second driving device and the third driving device extend in the same direction. Also disclosed are a range hood applied with the lighting device, a cooking device, and a control method for the cooking device.

The present invention provides a circuit for preventing flashback of LED lights, comprising: a circuit body for preventing flashbacks for LED lights, the circuit body for preventing flashbacks for LED lights is connected to a peripheral circuit; and an input capacitor fast discharge module The input capacitor rapid discharge module is connected to the body of the circuit body for preventing flashback when the LED lamp is powered off, and is used to quickly drop the input voltage of the peripheral circuit to a value when the output voltage of the power supply capacitor reaches a preset value. zero. The power-off flashback prevention circuit of the present invention can solve the power-off flashback problem without changing the start-up current of the LED working chip, thereby not increasing the start-up time of the LED system when it is normally powered on, and has the ability to prevent power-off The advantages of flashback, short power-on and start-up time, and good user experience.

A light distribution system of an LED strip lamp, comprising a light source module, a reflective device disposed in a light-emitting direction of the light source module, and an illuminated surface which receives the reflected light from the light reflective device, the illuminated surface includes a ground surface and a main illuminated surface perpendicular to the ground surface, the light source module includes at least one LED chip, each of the LED chips has an optical axis, the optical axis is perpendicular to the vertical, in the cross section along the vertical direction and the optical axis, the reflective device includes a main reflective surface, it is difficult for the light to directly enter the eyes of the user, so that it can achieve the purpose of preventing glare.

The invention discloses a novel anti-dazzling court mining lamp which comprises a lamp body, an LED light source, a reflecting lampshade, a light-transmitting cover of an acrylic structure and an anti-dazzling optical grating, the LED light source is arranged on the surface of the lamp body, the reflecting lampshade is arranged in a bucket shape, and a mounting edge is arranged on the portion, corresponding to the lamp body, of the inner ring of the reflecting lampshade; the light-transmitting cover is fixedly installed on the installation edge through screws, and an anti-dazzling optical grating corresponding to the light-transmitting cover is arranged on the inner side or the surface of the light-reflecting lampshade. A heat dissipation device corresponding to the LED light source is arranged in the lamp body. The novel anti-dazzling court mining lamp has the advantages of being non-dazzling, low in dazzling, stable in driving, good in heat dissipation effect, low in energy consumption, lasting in efficiency, high in light transmittance, bright in light, uniform in light emitting, wide in irradiation range, long in service life and suitable for various places such as basketball courts, badminton courts and table tennis courts and factories and warehouses.

An LED strip light for shelf signboards, comprises a strip-shaped lamp chamber, and an LED light-emitting module. The strip-shaped lamp chamber comprises a card board connecting edge, a non-transparent edge, an upper transparent edge and a lower transparent edge. The LED light-emitting module comprises at least one LED chip, and a strip-shaped lens. The strip-shaped lens includes an incident surface, a first fully reflecting surface, a second fully reflecting surface, a refractably reflecting surface. The first fully reflecting surface reflects all the incident lights thereon toward the upper light transparent edge. The second fully reflecting surface reflects all the incident lights thereon toward the refractably reflecting surface. And the outgoing light of the refractably reflecting surface is directed toward the lower transparent edge. The LED strip light for shelf signboards allows the display side placed on the board to be illuminated so as to improve the user's desire to shop, and to illuminate the boundary between the laminates and the column, and it can improve user experience and save energy and reduce costs.