64results about How to "Meet the light distribution requirements" patented technology

The invention is suitable for the technical field of lighting, and provides a headlamp reflector and a motor vehicle headlamp. The headlamp reflector comprises first light reflecting cup, a second reflecting cup and a third reflecting cup which are respectively composed of four freedom curved surfaces which are established on parabola datum planes of different focal distances through splicing, the curvatures of the freedom curved surfaces on different positions of the reflecting cups approach to the corresponding datum plane parabola curvature, and the curvatures of the respective curved surface are not equal; and a heat dissipation piece in the motor vehicle headlamp is provided with a reflector, by virtue of the different conjugations of multiple fixing holes arranged on the heat dissipation piece and a connecting hole arranged in a lamp body, the position adjustment of the reflector is realized, and the light distribution requirement is achieved. According to the invention, the motor vehicle headlamp has universality, an installation position and an installation manner of headlamp are changed, the position control of the reflector is easy to realize, and the light distribution effect of the headlamp is basically not influenced.

The invention discloses a vehicular LED headlamp, which comprises an LED bulb, a reflective bowl, a glass sheet and a rear shell, wherein the LED bulb is positioned in the reflective bowl, the LED bulb and the reflective bowl are mounted in the rear shell, the glass sheet is arranged in front of an opening of the reflective bowl, a reflective surface of the reflective bowl employs paraboloid as a reference curved surface, and the luminous center of the LED bulb is positioned at the focus of the reference curved surface. By the aid of the headlamp, the brightness of emergent light of a light source can be improved, high-brightness light spots are formed, and the national requirement on light distribution of vehicular headlamps is met.

The invention is applicable to lighting for navigation and provides an airfield runway LED center line light. The LED center line light comprises LEDs, convergence lenses and prisms, wherein the convergence lenses are used for collimating the light emitted by the LEDs into parallel light; and the prisms are used for regulating the paths of the parallel light to ensure the parallel light to emit by dispersing upward in an oblique manner along the horizontal direction. After the LED center line light is connected with the power, the light emitted by the LEDs is changed into parallel light by the convergence lenses and enters into the prisms, the parallel light exits through refraction after being reflected by the prisms and disperses upward in an oblique manner along the horizontal direction during exiting, thus meeting the light distribution requirement of the airfield lights on the airfield taxiway bend. With the LEDs as the light sources, the LED center line light has low energy consumption, good shake resistance, long life and low maintenance cost.

The invention discloses a combined lens for an LED motocycle headlamp. The combined lens comprises high beam lamp and lower beam lamp light combined lens free-form surfaces, each optical lens is composed of a double free-form hook face and a single free-form hook face, the optical lens of a high beam lamp is placed in front of a chip, and the optical lens of a lower beam lamp is placed in front of a reflection cup. The deterministic processes of the hook faces include the steps of building a rectangular coordinate system, determining oval zones and semi-circle zones which use illumination face center points as centers, conducting energy dividing on the oval zones and the semi-circle zones, obtaining energy ratios accounted by the single free-form hook faces and the double free-form hook faces, and calculating the light outlet angle of the chip and the mapping relation of a target plane; and then obtaining coordinate values of points on the double free-form hook faces and the single free-form hook faces, combining the obtained points, conducting modeling, and then obtaining a model solid. The combined lens overcomes the defects that in an existing motocycle lens illumination technology, dispersion is serious, the color temperature is slightly high, and the lighting effect using rate is low.

The invention provides a floodlight reflector, a floodlight and a powerboat, which are applicable to the field of lighting. The inner surface of the reflector is formed by a line segment rotating around an axis line, and the line segment is formed by connecting a plurality of segments sequentially; the projected length of each segment in the axis line is 0.6-7.8 mm; the included angle of the extension line of the line segment and the axis line is 8-40 degrees; and the axis line is coincided with the optical axis of a light source. In the embodiment, the inner surface of the floodlight reflector is formed by the rotation of the line segment, a small part of light rays sent by the light source are emitted directly, and most part of light rays are reflected by the reflector and then are emitted in a crossed way; the luminescence angle of the floodlight is 20+/-2 degrees; the uniformity degree of the inner illumination intensity of the luminescence angle is extremely high, which can meet the light distribution requirement of the floodlight; and the size of the reflector can be reduced greatly so that the sizes of the floodlight and an LED light made from the reflector are also small. The invention is suitable for occasions with a strict requirement for the sizes of lights, and particularly can be used as a roof light and a ceiling light of a powerboat.

The invention provides a floodlight reflector, a floodlight and a powerboat, which are applicable to the field of lighting. The inner surface of the floodlight reflector is formed by a line segment rotating around an axis line, and the line segment is formed by connecting a plurality of segments sequentially; the projected length of each segment in the axis line is 0.6-1.3 mm; the included angle of the extension line of the line segment and the axis line is 6.5-30.5 degrees; and the axis line is coincided with the optical axis of a light source. In the embodiment, the inner surface of the floodlight reflector is formed by the rotation of the line segment, a small part of light rays sent by the light source are emitted directly, and most part of light rays are reflected by the reflector and then are emitted in a crossed way; the luminescence angle of the floodlight is 100+/-2.5 degrees; the uniformity degree of the inner illumination intensity of the luminescence angle is extremely high, which can meet the light distribution requirement of the floodlight; and the size of the reflector can be reduced greatly so that the sizes of the floodlight and an LED light made from the reflector are also small. The floodlight is suitable for occasions with a strict requirement for the sizes of lights, and particularly can be used as a roof light and a ceiling light of a powerboat.

The invention belongs to the technical field of street lamps, and relates to an LED street lamp; an LED street lamp unit is internally provided with an independent drive and has a tubular power supply; street lamps with different power are assembled according to the combined need of the design of whole lamp so as to meet design requirements. According to the illuminating brightness and light spot needs, units with corresponding quantity and length can be selected and combine brackets which can lead each unit to rotate freely and can be fixed tightly at proper angle, so as to combine the whole street lamps with various specifications. The invention has the advantages that the LED street lamp units adopt structure with independent power supply, independent radiating fins and independent sealing, so that the light distribution angle can be adjusted, the power can combine freely, the radiating area is large, the service life is long; and the arrangement of a special air hole can balance the pressure difference in the lamp tube, thus preventing the lamp tube from broken due to expansion on heating and contraction on cooling.

The invention is suitable for the lighting field and provides a flood light reflector, a flood light and a motor boat. The inner surface of the reflector is formed by rotating a fold line section around an axle line, and the fold line section is formed by sequentially connecting a plurality of line sections; each line section has a projected length of 0.6-1.8mm on the axle line, and the extended line of the fold line section has an included angle of 5-40 degrees with the axle line; and the axle line and the optical shaft of a light source coincide. In the embodiment of the invention, the fold line section is rotated to form the inner surface of the flood light reflector, a minor part of light rays emitted by the light source directly emerges out, and the major part emerges out in a crossing way after being reflected by the reflector; a light-emitting angle of the flood light is 80+/-2.5 degrees, and the illuminance uniformity inside the light-emitting angle is extremely high and meets the light distribution requirements of the flood light; and moreover, the size of the reflector can be greatly reduced, and the flood light and the LED lamps made by the reflector also have small sizes, are suitable for occasions having strict requirements on the sizes of the lamps and particularly can be used as the dome light and the ceiling light of the motor boat.

The invention provides a floodlight reflector, a floodlight and a powerboat, which are applicable to the field of lighting. The inner surface of the reflector is formed by a line segment rotating around an axis line, and the line segment is formed by connecting a plurality of segments sequentially; the projected length of each segment in the axis line is 0.6-3.0 mm; the included angle of the extension line of the line segment and the axis line is 0-45 degrees; and the axis line is coincided with the optical axis of a light source. In the embodiment, the inner surface of the floodlight reflector is formed by the rotation of the line segment, a small part of light rays sent by the light source are emitted directly, and most part of light rays are reflected by the reflector and then are emitted in a crossed way; the luminescence angle of the floodlight is 60+/-2.5 degrees; the uniformity degree of the inner illumination intensity of the luminescence angle is extremely high, which can meet the light distribution requirement of the floodlight; and the size of the reflector can be reduced greatly so that the sizes of the floodlight and an LED light made from the reflector are also small. The floodlight is suitable for occasions with a strict requirement for the sizes of lights, and particularly can be used as a roof light and a ceiling light of a powerboat.

The invention discloses a free-form optical reflector for an LED (light-emitting diode) motorcycle high beam, wherein an internal surface of the reflector is a free-form surface to form an optical reflecting surface; the bottom surface of the reflector is an opening; an LED light source is installed at the centre of the opening; one end rightly facing the bottom surface is a light exit port of the reflector; the minority of light emitted by the LED light source directly shines on an illuminating surface, and the majority of the light is reflected by the internal surface of the reflector and then is emergent to the illuminating surface. The light energy emitted by the LED light source is emergent after being reflected by the freeform reflector, so that the loss is reduced and the utilization rate of light energy is improved. The reflector is small in size and has a low glare effect and meets the light distribution requirements in GB5948-1998. In addition, a heat-radiating device and the LED light source are conveniently installed, and the heat dissipation efficiency of the overall lamp is favorably improved.

The invention provides an LED (Light-Emitting Diode) lamp and is applicable to the field of illumination. The LED lamp comprises a lamp cylinder. A fixed board which has a trapezoid cross section after being bent is arranged in the lamp cylinder. The fixed board is provided with two inclined waist board parts and an upper bottom board part connected with the waist board parts. A plurality of heat radiating ribs are arranged on two face-to-face surfaces of the waist board parts and the upper surface of the upper bottom board part, which is connected with the face-to-face surfaces of the waist board parts. A plurality of LEDs are uniformly arranged on two back-to-back surfaces of the waist board parts and the lower surface of the upper bottom board part. According to the LED lamp, the LEDs are uniformly arranged on the surface of the fixed board with the trapezoid cross section; light emitted by the LEDs is mutually overlapped and the emergent light is uniform; a light-emitting angle and light intensity are large enough; and the light distribution curves of the LEDs are consistent with the light distribution curve of a machine maintenance lamp of a fluorescent lamp. Therefore, requirements on light distribution of the LED lamp are met, and the LED lamp has excellent anti-shock property and anti-impact property. Furthermore, the LED lamp is used as an illuminating device and can be used as the machine maintenance lamp or a tent lamp.

The invention discloses an LED down lamp with a rotating structure. The LED down lamp comprises a driver, the driver is arranged on a wiring shell, a driver shell is clamped into a wiring clamping groove of the wiring shell through driving shell clamping hooks, and a heat dissipating shell is clamped into a driving clamping groove of the driving shell through heat dissipating clamping hooks; elastic pieces are arranged at the two sides of the heat dissipating shell, and an LED aluminum substrate is arranged at the bottom of the heat dissipating shell; light guide clamping hooks are arranged on a light guide column, penetrate through the LED aluminum substrate and are clamped into heat dissipating clamping grooves of the heat dissipating shell, rotating shafts are arranged at the left side and the right side of a reflector and are clamped into rotating shaft clamping grooves in a cavity of the heat dissipating shell to rotate the reflector, a microstructure lens is arranged at the upper end of the reflector, and a lens hood is connected with the heat dissipating shell. The invention further discloses a realizing method of the LED down lamp with the rotating structure. The LED down lamp with the rotating structure has the advantages of being simple in structure, low in manufacturing cost and high in production efficiency and heat diffusivity, saving energy and meeting the standard of American Energy Star.

The invention discloses an LED (Light Emitting Diode) lens for a front navigation lamp of an airplane. The LED lens comprises an inner total reflection system and an optical prism system, wherein the inner total reflection system is used for collecting light emitted by an LED light source, performing total reflection on the light and causing the light to emit at a small angle; the optical prism system is used for adjusting the emitting direction and optical distribution of the light at the small angle emitted by the inner total reflection system; a groove for collecting the light emitted from the LED light source is arranged on the inner total reflection system. The LED lens can meet the light distribution demand of the front navigation lamp of the airplane; the realizing mode is simple; the LED lens can be integrally formed; the mounting is simpler; the cost is lower; the maintenance difficulty and the maintenance hidden danger are reduced; the application of the LED light source in the front navigation lamp of the airplane is benefited; the LED lens can be widely applied to the front navigation lamp of the airplane.

The invention relates to an LED lighting unit with high thermal diffusivity and an adjustable light distribution light fitting applying the lighting unit. The invention relates the LED lighting unit which comprises a lamp body, an LED light source, an LED drive circuit board, a light transmission housing plate, a cover plate of the lamp body and end covers at the two sides of the lamp body; wherein, a plurality of LED light sources are arranged in the lamp body in array, the LED drive circuit board is arranged in the lamp body which is also provided with a plurality of rows of lattice-shaped heat conducting reinforcing rods that can effectively educe the LED light sources and the heat generated by the drive circuit board, and a revolving joint is arranged outside the end covers at the two sides of the lamp body; the adjustable light distribution light fitting comprises a mounting rack which is provided with a device that is fixedly connected a carrier and a device that is connected with the revolving joint of the LED lighting unit with high thermal diffusivity in an adjustable way. The LED lighting unit can ensure the service performance and the service life of the light fitting, improves the production efficiency and meets the requirements for distribution light in most of the time. The adjustable light distribution light fitting has convenient assembly, good universality, high installation efficiency, convenient maintenance and adjustable lighting angle.

The invention relates to a vehicle signal map LED electronic control module comprising an LED string, an LED string drive circuit, and a same circuit board on which the LED string and the drive circuit are located; the LED string comprises one or more LEDs connected in series; the circuit board covers and is bonded and fixed on the top surface of a radiator through a heat radiation glue layer; theradiator is provided with a sink; the sink opens on the top surface of the radiator; the LED string is arranged on the top of the circuit board; members of the drive circuit are arranged on the bottom of the circuit board, and located in the sink; a sheet type or cylindrical type heat radiation structure and a connecting wire or a PIN socket connector introducing port are arranged on the bottom of the radiator; the drive circuit employs a DCDC type drive circuit BOOST-BUCK topology framework. The LED electronic control module integrating the LEDs with the LED drive can meet the miniaturization and standardization requirements while satisfying optical system light decay requirements, thus enabling one LED lamp module to adapt to all signal lamp body structures.

The invention provides a trimming structure, which comprises a base plate assembly and a plurality of reflector modules arranged on the base plate assembly, wherein the base plate assembly is a folding line type base plate and comprises a plurality of sequentially connected base plates, in addition, a preset included angle exists between the located planes of any two adjacent base plates, each reflector module comprises a plurality of reflectors, the reflectors of each reflector module are arranged on the corresponding base plate, and in addition, the emitted light rays are subjected to secondary trimming processing. The invention also provides an LED (light emitting diode) lamp adopting the trimming structure. The trimming structure can form the trimming distribution similar to the trimming angle of the reflector and the narrow and long type trimming distribution on illuminated surfaces, further, narrow and long type light spots with uniform illumination intensity are formed on the illuminated surfaces, and the trimming requirements of the LED lamp are met.

The invention discloses an all-light-distribution optical system used for a light-emitting diode (LED) ball bulb lamp. The all-light-distribution optical system comprises a plurality of LED chips, a light-reflecting cover in a trumpet shape and a substrate. The all-light-distribution optical system is characterized in that the substrate and the light-reflecting cover share the same symmetry axis and the bottom of the light-reflecting cover is connected with the surface of the substrate. The light-reflecting cover is opened from the surface of the substrate and stretches upwards along the symmetry axis to the top portion of the light-reflecting cover in a trumpet-shaped mode. The plurality of LED chips are symmetrically arranged on the surface of the substrate relative to the symmetry axis. A part of the plurality of LED chips are located outside the light-reflecting cover and arranged evenly in an annular shape, the other part of the plurality of LED chips are located inside the light-reflecting cover. Due to the shape and the position of the light-reflecting cover and the arrangement mode of the plurality of LED chips, a part of the light rays emitted by the LED chips shine upwards directly and the other part of the light rays emitted by the LED chips are shot towards other directions through the reflection of the light-reflecting cover, so that light shining angles are increased, the LED ball bulb lamp of the all-light-distribution optical system can achieve the all-light-distribution light distribution effect with ease and cost for achieving the all-light-distribution optical system is also low.

A reflecting machine of a runway alarm lamp comprises a base plate, a first reflecting part and a second reflecting part. The first reflecting part extends outwards in an inclined mode from the edge of the base plate and is composed of a plurality of first reflecting sheets surrounding the base plate. The second reflecting part extends outwards in an inclined mode from one end of the first reflecting part and is composed of a plurality of second reflecting sheets surrounding the first reflecting part. The base plate, the first reflecting part and the second reflecting part together form a containing cavity, one end of the containing cavity is provided with an opening, and the width of the containing cavity gradually enlarges from the base plate to the opening. A light source is placed in the center of the base plate, and light emitted by the light source respectively passes through the first reflecting part and the second reflecting part and is reflected out once. Through reflection of the first reflecting part and the second reflecting part, the direction of the light is controlled, good distribution curve flux is obtained, light energy of the light source is fully utilized, when a light source with low power is used, light distribution requirements of the runway alarm lamp are enabled to be met, a light source with high power is not needed to be used, energy dissipation is low, and the reflecting machine is more energy-saving and more environment-friendly.