WO2010022539A1 - 等截面三角形定向棱镜圆形反光板及由其制成的圆板灯 - Google Patents

等截面三角形定向棱镜圆形反光板及由其制成的圆板灯 Download PDF

Info

Publication number
WO2010022539A1
WO2010022539A1 PCT/CN2008/001534 CN2008001534W WO2010022539A1 WO 2010022539 A1 WO2010022539 A1 WO 2010022539A1 CN 2008001534 W CN2008001534 W CN 2008001534W WO 2010022539 A1 WO2010022539 A1 WO 2010022539A1
Authority
WO
WIPO (PCT)
Prior art keywords
circular
reflector
light
lamp
prism
Prior art date
Application number
PCT/CN2008/001534
Other languages
English (en)
French (fr)
Inventor
潘定国
Original Assignee
Pan Dingguo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pan Dingguo filed Critical Pan Dingguo
Priority to JP2011524159A priority Critical patent/JP2012501001A/ja
Priority to EP08800532A priority patent/EP2330341A1/en
Priority to KR1020117007016A priority patent/KR101292481B1/ko
Priority to US13/060,932 priority patent/US8616736B2/en
Priority to CN2008801010376A priority patent/CN101932875B/zh
Priority to PCT/CN2008/001534 priority patent/WO2010022539A1/zh
Publication of WO2010022539A1 publication Critical patent/WO2010022539A1/zh

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0085—Means for removing heat created by the light source from the package
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/777—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having directions perpendicular to the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a miniature prism type reflector, in particular to an equal-section triangular prism circular reflector and various round plate lamps and circular plate lamps.
  • the reflector or the reflector is mainly used for reflection and refraction of light, and then a strip-shaped microcolumn prism which can act as a prism is provided thereon, which can be better used for adjusting the reflection of sunlight. And refraction, and finally developed into a lamp body that can be placed at both ends thereof to form a luminescent panel to achieve both illumination.
  • a strip-shaped microcolumn prism which can act as a prism is provided thereon, which can be better used for adjusting the reflection of sunlight.
  • refraction and finally developed into a lamp body that can be placed at both ends thereof to form a luminescent panel to achieve both illumination.
  • the applicant has proposed a micro prism type solar reflector and an adjustment control device thereof, wherein one surface of the reflector is provided with a plurality of parallel strip-shaped isosceles right triangles
  • the microcolumn prism body has a apex angle of 90° and a bottom angle of 45°, and blind holes are formed on the end faces of the two ends, and a lamp body including an LED diode is placed in the blind hole.
  • This reflector is used in rooms with glass ceilings, windows or skylights. In winter, sunlight can be fully injected. In summer, the sun can be reflected in whole or in part, that is, the sunlight can be kept bright while the sunlight is blocked, and the lamp body at both ends can provide supplementary illumination in dark weather or at night. .
  • the reflector of this structure can form a light-emitting surface as a whole under the action of the lamp body, the illumination illuminance is relatively low due to the limitation of the design structure.
  • the applicant envisions how to advance the combined structure of the reflector and the LED to the field of illumination, and proceeds to study the point source of the reflector to become a surface source by means of LEDs, that is, to The decorative effect goes to true illumination.
  • the applicant discloses two types of reflectors in the PCT (CN)/2007/002052, PCT (CN)/2008/000031 patent application, wherein one is a flat plate having a plurality of parallel surfaces on one surface thereof.
  • each microcolumn prism body is an unequal right triangle, and the left and right unequal waist triangles adjacent to the symmetry center plane have the largest cross-sectional area, and the cross-sectional area to the left and right ends Decrement
  • the light plate is a circular plate, which is a circular reflector with a right-angled triangular microprism with a central axis as a center of symmetry, and a plurality of annular microcolumn prism bodies are formed in a radial direction thereof, the cross section and the cross section thereof,
  • the structure of the product is the same as that of the flat plate.
  • a circular reflector is taken as an example, and the lamp body is disposed thereon, and the emission center axis of the lamp body is opposite to the plane of the reflector Parallel, or the apex of the angle of each annular prism body passing through the plane of the reflector. Therefore, light emitted from the lamp body will be reflected from the respective microcolumn prism bodies to produce a good illumination effect.
  • the slabs and circular reflectors of the above structure also have unequalities in the directional illumination that reflect and emit light on the reflector through a prism in a plane (affecting the illumination effect) and the reflector
  • the miniaturization of the lamp segments that is, the asymmetric single-sided microcolumn prism design arrangement, is a problem that is not recognized in the above patent applications.
  • LED light sources must enter illumination according to their structural characteristics, but LEDs have encountered considerable resistance in their development, especially the frustrations of high-power LED applications. The biggest problem is light decay, and LEDs are not going well in indoor lighting applications. To sum up, we don't really know the light characteristics of LED light sources, and how exactly the "lights” of LEDs match, how to "optical” and “fit” optical, mechanical design, this is the invention The problem to be solved. Summary of the invention
  • Another object of the present invention is to eliminate the use of high-power LEDs in indoor lighting, and to avoid complication of lamps due to the complexity of the LED heat dissipation mechanism. And the lumen value decreases due to the high junction temperature of the LED, and the low-power, low-current LED chip allows each beam emitted by the chip to accurately position their emission, conduction and reflection, while making the LED chip The heat generated is quickly drained to achieve the best results. '
  • the present invention employs a counter-reflection of an equi-section triangular prism reflector Light technology, which is the main body of a round plate lamp.
  • a series of equi-section triangular prisms are flared from the center to form a series of equilateral triangular concentric prisms.
  • the equal-section triangular microprism directional circular reflector of the present invention is referred to as a prism surface having a plurality of concentric annular microcolumn prism bodies in a radial direction from the central axis on one surface thereof, a vertical section through the central axis,
  • Each of the annular micro-column prism bodies has a triangular cross section and is continuously distributed in a zigzag shape, wherein the triangles have the same cross-sectional area and the cross-sectional area of the annular micro-column prism body closest to the central axis.
  • the other surface of the reflective sheet called the smooth surface has the shortest distance, and the distance from the periphery of the left and right sides to the smooth surface gradually increases.
  • each annular micro-column prism body The radial connection of the apex of the cross-section of each annular micro-column prism body is two. Oblique straight lines, which intersect the central axis of the circular reflector at a point and form an angle ⁇ with the smooth surface of the circular reflector, ⁇ is less than 45 degrees, and the distance or spacing of the triangles in each diameter is equal.
  • zigzag-shaped continuously arranged cross-section triangles are gradually decreasing in a distance from a vertex to a smooth plane, and one of a right side and a left side of each triangle is called a critical edge, and its The extension line intersects the smooth plane with respect to the prism face and is at an angle to the normal, which angle ranges from 40 degrees to 90 degrees.
  • cross-sectional triangle is a right-angled triangle or a non-orthogonal triangular shape.
  • the circular lamp made of the circular reflector comprises a reflector, a heat dissipation frame and a plurality of lamp bodies, wherein the heat dissipation frame is a disk surface having a central opening and an annular disk edge around the disk surface, which is sleeved in
  • the reflector is such that the edge of the disk surface where the opening is located overlaps the edge portion of the smooth surface of the reflector, and the lower portion of the inner peripheral wall of the disk edge abuts against the flange of the reflector and the rest of the inner peripheral wall and the column of the reflector Forming a gap to form a grooved annular light groove coaxial with the central axis,
  • the lamp body being a light emitting diode LED, a bulb, an electrode tube or prefabricated into a plurality of LED tube assemblies and each mounted in the annular lamp socket
  • the line connecting the emission plane of the light emitting diode and the apex of each cross section of the prism surface intersects at an angle of 90-
  • the disc lamp as described above further comprising a heat dissipating plate, wherein the heat dissipating plate is a circular plate, and the upper surface thereof is provided with a plurality of evenly spaced, concentric annular heat radiating ribs perpendicular to the plate surface. It is covered on the reflector by the combination of its edge portion and the edge of the heat dissipation frame.
  • each annular heat dissipation rib of the heat dissipation plate is provided with a uniform notch, the notches are radially aligned, and the heat dissipation plate is made of an aluminum alloy material.
  • the lamp body is a prefabricated ring lamp assembly comprising a plurality of light emitting diode patches, a resistor and a circuit board, and the lamp assembly is bent into a ring shape And being placed or embedded in the lamp socket so that the light emitting diode emission plane in the lamp slot is closely attached to the cylindrical surface of the reflector of the lamp slot and intersects with the triangle vertex of each cross section of the reflector to form an angle of 90- ⁇ .
  • the triangular prism body is directed toward the light-emitting diode, and one side of each of the triangular cross-sections of the light-emitting diode is a light-receiving critical edge, and is also a critical edge of the cross-sectional triangle facing the central axis.
  • the circular surface of the cross-section triangle where the light-receiving critical edge is located is the interface to be visited, where it is called the critical edge, and its extension line intersects with the smooth plane of the prism surface and forms an angle with the normal. The angle ranges from 40. Degree to 90 degrees.
  • the heat sink is conical, the cone top is a plane, the radial surface of the cone is provided with a radial heat dissipation rib, the screw head is mounted on the plane of the cone top, and the constant current source of the power driver is installed on the cone In the space between the reflective linings of the heat sink R, the input end is connected to the spiral lamp head, and the output end is connected to the terminal of the LED light strip light source.
  • the equal-section triangular prism circular plate lamp is composed of a constant current source of the power source driver; the LED light bar light source; the circular plate lamp aluminum heat dissipation frame (heat sink), and the equal-section triangular prism plate circular plate secondary optical original component Surface light source illumination engine.
  • the basic shape of the circular plate lamp is a circular plate shape.
  • the driving voltage is 12V or 24V DC
  • the current is a tens to hundreds of milliamps constant current source, which can be made into dozens of
  • a round lamp of unequal diameter from a few millimeters to a few hundred millimeters, which can be used in ceiling lamps for indoor lighting, flat roofs, flat ceiling lamps for bathrooms, and kitchen ceiling lamps, as well as for cabinet circular panels, public walkways And large space ceiling lights.
  • the round plate lamp can also be used as a table lamp.
  • the tens of millimeters diameter 1W round plate lamp can be used for the elderly at night.
  • the circular plate lamp is flat and compact, and the circular plane surface emits light without glare.
  • the temperature of the outer casing is generally higher than the ambient temperature of ten degrees, the safety voltage of 12 volts is low, the current of the current is less than 1000 mA, the life is long, and the life of the lamp is 40,000 hours. Can be widely used for indoor lighting.
  • LED round lamps such as 4.6W 190 mm diameter circular disc lamps have an illumination of 900 Lux at 400-500 mm and 195 Lux at a distance of 1 M.
  • the light is almost the same as the incandescent lamp, the light color is good, there is no glare, the light color is even, there is no flicker, and the long life is used.
  • the LED round lamp is an energy-saving lamp that consumes one-tenth the power of an ordinary incandescent lamp and can obtain the same illumination of an incandescent lamp.
  • the LED round lamp has simple structure, easy to use, safe transportation, environmentally friendly materials, and can be recycled.
  • LEC low-cost light
  • Figure la is a circular plate lamp composed of a circular prism with an equal-section triangular prism and its equivalent A stereoscopic view of a circular prism of a triangular prism.
  • Fig. 2a, 2b and the like are sectional views of a triangular prism disk lamp and an enlarged view thereof.
  • Figure 3a is a front view of one of the disc lights, showing the part after removal of the heat sink.
  • Fig. 3b is a cross-sectional view taken along line A-A of Fig. 3a, showing a prismatic body design of the prism face of the disk lamp and optical path analysis under illumination of the light emitting diode.
  • Figure 4a is a front elevational view of the second of the disc lights showing the portion after removal of the heat sink.
  • Fig. 4b is a cross-sectional view taken along line A-A of Fig. 4a, showing the design of another prism body of the prism face of the circular lamp and the optical path analysis under illumination by the LED.
  • Figure 5a is a front elevational view of the third of the disc lights showing the portion after removal of the heat sink.
  • Figure 5b is a cross-sectional view taken along line A-A of Figure 5a, showing the prism face of the disk lamp and another prism design configuration and optical path analysis under illumination of the LED;
  • Fig. 6 is a perspective view showing the angular relationship between the triangular prism bodies on the central axis side of the circular plate lamp of Fig. 3b and the angle connecting the adjacent triangle vertices with the horizontal line.
  • Figure 7 is an enlarged view of A of Figure 6, showing that the interface of the prism body is a right-angled triangle bevel and intersects the prism normal at 45 degrees.
  • Fig. 8 is a view showing the relationship between the diametrical spacing of the triangular prism bodies on the side of the central axis and the vertices of adjacent triangles and the horizontal lines of the circular lamp of Fig. 4b.
  • Figure 9 is an enlarged view of B of Figure 8, showing that the interface of the prism body is a right-angled triangle and intersects the prism normal at 45 degrees.
  • Fig. 10 is a perspective view showing the angular relationship between the triangular prism bodies on the central axis side of the circular plate lamp in the diametrical direction and the line connecting the adjacent vertex vertices to the horizontal line.
  • Figure 11 is an enlarged view of C of Figure 10, showing that the interface of the prism body is a right-angled triangle bevel and intersects the prism normal at 45 degrees.
  • Figure 12 is a graph comparing the illuminance of a 4W circular panel lamp of the present invention with a 60W incandescent lamp at a distance of 0-1.5 meters.
  • Figure 13 is a graph comparing the illuminance of a 4W circular panel lamp of the present invention with a 60W incandescent lamp over a distance of 1.5-3 meters.
  • Figure 14 is a graph showing the illuminance of the two differently shaped equi-section triangular prism 4W circular circular lamps in the range of 0-1.5 meters.
  • Figure 15 is a graph comparing the illuminance of two differently shaped equi-section triangular prism 4W circular circular lamps of the present invention in the range of 1.5-3 meters.
  • Figure 16 is a circular panel luminaire made as a ceiling light using the circular panel lamp of the present invention.
  • Figures 17a and 17b show a cross-sectional view of a circular luminaire with a threaded base and a top view thereof, respectively. detailed description '
  • an isometric triangular microprism circular reflector of the first embodiment of the present invention is shown, which is provided on a surface of the reflector 1 called the prism surface 11 from the center of symmetry 00'.
  • a plurality of concentric annular micro-pillar prism bodies 111 each having a triangular cross section, including a right-angled triangle and a non-orthogonal triangle, wherein the plurality of triangles are zigzag continuously distributed and have the same cross section Equal, and the vertices of the left and right triangles adjacent to the center of symmetry are the shortest distance from the other surface of the reflector called the smooth surface 12, and the vertical distance from the apex of the left and right sides to the other surface of the reflector gradually Incremental (because the central plane or the central axis is symmetrical on both sides, the vertical distance is exemplified by the left half), and the distances of the respective triangles in the length direction are equal, each being ⁇ .
  • the entire triangular prism body has a width of 2 ⁇ ⁇ ⁇ , where ⁇ is the number of concentric annular triangular prism bodies on one side of the symmetrical central plane.
  • the reflector has, in addition to the two faces that have been set, the flat smooth surface 12 and the prism face of the sawtooth triangle, the triangle vertices of the near smooth surface 12 can be connected, and The vertices of adjacent triangles away from the smooth surface 11 are connected by taking the left half of the central axis as an example to obtain two straight lines or two planes where the two lines are connected, and the two straight lines are inclined but parallel to each other.
  • the two straight lines intersect the center axis 00' of the cross-section of the reflector at the ⁇ and ⁇ points, which are ⁇ and ⁇ , and they form an angle ⁇ with the smooth surface 12 of the reflector, and a is less than 45 degrees.
  • the circular reflector of the present invention is made of a transparent plastic such as polycarbonate.
  • critical edges in this paper, that is, the zigzag-shaped triangles are gradually decreasing in distance from the vertices to the smooth plane, and the right and left sides of each triangle One of the sides, called the critical edge, the extension of the critical edge intersects with the smooth plane of the prism face and forms an angle with the normal, which ranges from 40 degrees to 90 degrees.
  • a circular panel lamp according to the present invention comprising a circular reflector 1, a plurality of lamp bodies 2 and a heat dissipation frame 3, wherein the reflector 1 is outside the annular microcolumn prism farthest from the central axis 00'
  • the reflector 1 is outside the annular microcolumn prism farthest from the central axis 00'
  • an outwardly extending edge portion 113 which retains a portion of the cylindrical surface 114 on its outer peripheral surface
  • an annular flange 115 is provided adjacent the smooth surface 12 at the lower portion of the cylindrical surface 114.
  • the heat dissipation frame 3 is a disk surface 31 having a central opening and an annular disk edge 32 around the disk surface, as shown in Fig. 2a. It is sleeved on the reflector so that the edge of the opening of the disk surface overlaps the edge portion 113 on the side of the smooth surface of the reflector, and it and the reflector pass through the lower portion of the inner peripheral wall of the heat-dissipating disk edge 32 and the reflector flange 115.
  • the opposite abutment and the remaining portion of the inner peripheral wall form a gap with the mirror cylindrical surface 114 to form an annular groove coaxial with the central axis 00', that is, the light groove 14.
  • the outer peripheral wall of the disk edge 32 of the heat dissipation frame may be provided with a plurality of annular heat dissipation ribs 33 which are uniformly spaced radially to form a heat dissipation groove 27 in the space between them.
  • the heat dissipation frame 3 can be made of an aluminum alloy material to ensure good heat dissipation.
  • the heat dissipating frame 3 is an aluminum alloy independent component, and the outer peripheral wall has a heat dissipating rib 33'.
  • the lower part of the inner peripheral wall is opposite to and within the reflecting plate flange 115.
  • the remainder of the peripheral wall forms a gap with the mirror cylindrical surface 114 to form an annular groove coaxial with the central axis 00'.
  • the heat sink 32' part is also made of aluminum alloy material.
  • the lamp body 2 is a light emitting diode LED, a bulb or an electrode tube or prefabricated into a plurality of LED tube assemblies and each mounted in the annular light groove 14, the emission plane of the light emitting diode and each cross section triangle on the prism surface The vertices intersect at an angle of 90- ⁇ .
  • the lamp body 2 adopts a prefabricated light emitting diode assembly, which is a ring lamp assembly composed of a plurality of LED patches 21, a resistor and a circuit board 22, and a plurality of LED patches 21 are spaced apart. Uniformly on the circuit board 22, and the lamp assembly is bent through the circuit board The annular shape is then placed or embedded in the lamp socket 14 and the emission plane of the LED patch 21 is closely attached to the cylindrical surface 114 of the reflector of the lamp slot 14 and the cross section of the reflector is three. The vertices of the angular vertices intersect at an angle of 9Q- ⁇ . ,
  • the main axis of the emitted light of the LED light-emitting diode patch (collectively referred to as the light-emitting diode) 21 mounted in the light socket 14 is a beam of light parallel to the smooth surface 12 of the reflector, when the side of the central axis of the reflector 1 is
  • each LED light-emitting diode patch 21 has an area A, and the area A of the LED is divided into n equal parts equal to the number of prism bodies 111, if the total photon energy provided is For E, then sufficient photon energy is allocated to E/A/n per aliquot of area to ensure that each prism body 111 on the prism face 11 is illuminated and more uniform.
  • the LED light-emitting diode patch used in the present invention is a low-power tube, and a plurality of chips can be disposed in one LED light-emitting diode patch.
  • the multi-chip LED light-emitting diode patches are arranged in a matrix in a row and mounted in the lamp socket 14 of the circular lamp.
  • the optical structure of the equi-section triangular prism is represented by a mathematical formula: the angle formed by the two straight lines AN and 'HM and the smooth surface can be obtained by parallel line transformation of the smooth surface of the A and M points (the angle ⁇ ).
  • the angle ⁇ is less than 10 degrees.
  • the two parallel straight lines are ⁇ and ME, as shown in FIG. 2 .
  • the parallel line AK is taken as an example
  • the first cross-section triangle FCA of the prism body on the side of the central axis is an isosceles right-angled triangle '
  • the perpendicular line from the point F (adjacent to the apex of the adjacent triangle) to the parallel line is FB.
  • the line FB is a straight edge of the right triangle, so that the second to the nth adjacent triangle vertices are perpendicular to the parallel line AK in the same manner as described above to obtain a series of right angle sides h 2 , h 3 .. .... h n-1 . h n , therefore h!, h 2 , h 3 ... h n-1 , h n represent the l ⁇ n triangles on one side from the central axis of symmetry
  • the vertical distance of the vertices, BA is a section of a cross-section triangle on the parallel straight line AK, and is also another right-angled side and equal to the distance ⁇ of the cross-section triangle in the length direction.
  • FIG. 3a, FIG. 4a, and FIG. 5a show that the disc lamp is further provided with two terminal blocks 29, and the reflector 1 is on one end face of the edge portion 13 located outside the lamp slot.
  • Each of the terminals is provided with a jack, and the terminal 29 is respectively installed in the jack, and is electrically connected to the lead of the strip lamp assembly 2 through a wire, so that the terminal 29 can be used to externally supply power.
  • Figures 3 ⁇ and 5 are three-dimensional triangular designs for the purpose of illustrating a series of centrally symmetric forms of circular lamps.
  • Figures 3a and 3b show that the equi-section triangle of the disc lamp is a '45° triangle, and its central axis OO' has two vertical triangles with their respective outward vertical right-angled sides (LED rays are thus incident on the prism) Side or face) 15 and the respective inwardly beveled edges.
  • These hypotenuses are directed toward the direction of illumination (LED optical axis) of the LED, and are therefore defined as critical edges (critical planes) or critical edges (received by the interface) 16 .
  • critical edges critical planes
  • critical edges critical edges
  • the equi-section triangle of the second disc lamp is an isosceles right-angled triangle, and its central axis OO' has two right-angled triangles with two right-angled sides 17, 18 each inward and outward, wherein, Outward, also the side or face of the LED light that is incident on the prism is defined as the incident right angle side 17, and those inwardly right angle sides are directed toward the LED illumination direction (LED optical axis), which is defined as the critical edge or the light receiving threshold. Side 18.
  • LED optical axis which is defined as the critical edge or the light receiving threshold.
  • Side 18 In the unequal-waist right-angled triangular reflectors, the normal F of each of the right-angled triangular prisms intersects the extension of the light-receiving critical edge 18 by 45 degrees.
  • Figures 5a and 5b show that the equi-section triangle of the third of the disc lamp is a non-orthogonal triangle, and its center plane or central axis 00' has two triangles 19, 24 of different lengths, each inward and outward. These outward short sides are directed toward the direction of illumination of the LED and are defined as critical or received critical edges 24 .
  • the normal F of each triangular prism body intersects the extension of the light-receiving critical edge 24 by 45 degrees.
  • a circular lamp made of different equal-section triangular reflectors as described above can form a light that exits at a certain angle from a smooth surface and is assembled into directional illumination.
  • directional illumination means that the light emitted by an equi-section triangular prism reflector containing LEDs forms an angle with the normal to the plane of the prism, and the assembly of these outgoing rays is directional illumination.
  • Any of the triangular triangular prismatic lamps of Figures 3 to 6 can produce a directional angled light with the normal to the smooth surface.
  • each of the LED patches 21 or the multi-chip LED patches can emit light to the n equal-section triangular prism bodies in a light source manner, and undergo reflection and refraction on the critical edge and the smooth surface to form a line-like outgoing light.
  • the strip-shaped outgoing light arrangement of the plurality of LED patches is densely dispersed on the entire plane to form a surface to illuminate the light and has high illumination. This is the main principle of the circular lamp of the present invention which can replace the conventional incandescent lamp and incandescent lamp.
  • the common points of the three equal-section triangular prism disk lamps shown in the figure are that the extension lines 16 , 18 , 24 of the interface or critical edge and the normal of the smooth surface 12 form a normal line. 45° angle and produces an exiting light parallel to the normal to the smooth surface.
  • the analysis shows that the angle between the extension line of the critical surface of the equi-section triangular prism and the normal surface of the prism is 45°. This is the commonality of three equal-section triangular prism disk lamps. The light produced by these circular lamps is parallel to the normal to the smooth surface, as shown in Figures 3, 4 and 5.
  • Figure 8 is a partial enlarged view of the prism body, wherein one of the vertical faces or edges OM (15) of the triangular prism is an LED light beam which is incident on the right-angle side of the prism, and the pitch of the right-angled triangles in the longitudinal direction is ⁇ ; the right-angled triangular prism shown in Fig. 10, wherein one LED light is incident on the right-angled surface or edge OM' (17) of the prism, and the right-angled triangles are respectively spaced apart by ⁇ 2 in the longitudinal direction; An LED light is thereby incident on the right-angled face or edge OM of the prism, and the distance between the triangles in the longitudinal direction is ⁇ 3.
  • the respective triangles of the reflector of FIG. 7 are on the same width of the reflector.
  • the distance ⁇ 1 in the longitudinal direction is the shortest and the smallest; the distance ⁇ 3 of each triangle of the reflector of Fig. 11 in the longitudinal direction is The longest and largest; and the distance ⁇ 2 of each right triangle of the reflector of Fig. 9 in the longitudinal direction is between ⁇ ⁇ and ⁇ 3 .
  • a plurality of triangular prism rings can be disposed on the reflector of FIG.
  • the LED patch 21 is accurately positioned in the light socket 14.
  • the optical axis of the LED light-emitting diode patch is parallel to the circular lamp plane, and the LED patches are parallel.
  • the light rays are totally reflected at the critical point of the triangular prisms arranged in sequence, and are transparent from the smooth surface of the prism to form a directional illumination parallel to the plane normal.
  • the invention adopts a low power, low current patch of LED.
  • the PN junction of the LED light-emitting diode generates heat at 80% of the working current. In order to ensure that the LED must work at a lower temperature for a long time, the heat generated by the PN junction must be removed in time. .
  • the opposite edge of the outer side of the reflector lamp slot (this edge portion is just the frame of the lamp) is made of aluminum alloy with good thermal conductivity, so the aluminum alloy heat dissipation frame 3 with the heat dissipation groove 27 is provided at the edge portion to maintain good heat conduction. performance.
  • FIG. 1A, FIG. 2a and FIG. 16 there is shown a circular plate lamp according to another embodiment of the present invention, which has a circular reflector 1, a plurality of lamp bodies 2, a heat dissipation frame 3, and The heat sink 4 or/and the reflective lining 5 are included, and the heat sink 4 is a circular plate like a cover.
  • the upper surface is provided with a plurality of evenly spaced, concentric annular heat dissipating ribs 41 which are covered on the reflector by a combination of the rim portion thereof and the rim of the heat dissipating frame, including the screw 6.
  • the annular heat radiating rib 41 of the heat radiating plate 4 conducts the heat of the diverging of the lamp body 2, and forms a heat dissipating groove between the annular heat radiating ribs 41 in the empty direction, so as to promote air convection, so that heat can be diverged from the center of the center of the circle.
  • each of the annular heat dissipation ribs 41 of the heat dissipation plate 4 is provided with a plurality of evenly spaced notches 411. Preferably, the notches are aligned in a row to allow heat to be better dispersed outside the lamp, and the heat dissipation
  • the plate is made of an aluminum alloy material.
  • the reflective lining 5 has approximately the same size of the reflector, and may be made of plastic, paper or metal material, and is sandwiched between the reflector 1 and the heat sink 4.
  • FIG. 12 and 13 there is shown a 4W disc 3 ⁇ 4" and 60W incandescent lamp of the present invention in The comparison of the illuminance of the illuminance in different distance ranges, where the black point and the black line indicate the illuminance of the 4W disc lamp within a certain distance range, and the gray black point and the gray black line are used to indicate that there are very few 60W incandescent lamps in the certain range.
  • the illuminance in the range of distance, and the apex angle of the equi-section triangular prism body of the 4W circular plate lamp is 45° (as shown in Fig. 3).
  • the illumination of the 4 watt circular panel lamp can be from 1350 LUX to 70 Lux in the distance of 0.3 to 1.5 meters, and the illuminance of the 60 watt incandescent lamp in the same distance is reduced from 800 Lux to 70 I: u X or less.
  • the illumination of a 4'-watt circular panel lamp from 1.5 to 3 meters can range from 60 Lux to 20 Lux, while the illumination of a 60-watt incandescent lamp is 30 Lux to 10 Lux.
  • the LED-equipped equal-section triangular prism directional circular panel lamp of the invention can provide excellent illumination brightness, especially at a distance of 3 L from a disc lamp 3 m, so it can be used as a new lamp.
  • the source is used in the field of illumination, and can replace the incandescent lamp, and has the advantages of saving electric energy, bright illumination, small heat dissipation, reasonable structure and convenient use.
  • FIG. 14 and FIG. 15 are graphs comparing the illuminance of a 4W circular plate lamp of two different-shaped triangular prisms of different shapes according to the present invention in a range of distances of 0.3 to 1.5 meters and 1.5 meters to 3 meters, wherein black dots are used.
  • the black line indicates the illuminance of a 4W disc lamp (as shown in Figure 3) made of a reflector with an apex angle of 45° in the equal-section triangular prism body.
  • the illuminance is within a certain distance, and is connected with gray-black dots and gray-black.
  • the line indicates the illuminance of a 4W circular plate lamp (in the form shown in Fig. 4) made of a reflector having an apex angle of 9.0° of an equal-section triangular prism body over a certain distance.
  • the result is that the illuminance of the circular plate lamp having a apex angle of 45° is larger than that of a circular plate lamp having a apex angle of 90°, especially in the illuminance curve of 1.5 m to 3 m, clearly indicated that 4
  • the equal-area triangular circular plate lamp of the tile has almost twice the illuminance at the apex angle of 45° compared to the 4-watt equal-section triangular disk lamp at the apex angle of 90°. This is because the critical surface of a 4 watt isometric triangular circular panel lamp at a vertex angle of 45° is twice as large as the criticality of a 4 watt LED cross-section triangular circular panel lamp at a vertex angle of 90°. This also confirms that the circular panel lamp of the present invention is desirable in the concept of optical design guiding principles.
  • the circular panel lamp of the present invention can be like any other light bulb or fluorescent lamp. It is made up of a variety of circular panel lamps by configuring lamp holders, brackets, decorative lampshades, and power driver constant current sources.
  • the structure of this circular plate luminaire is simple, and the directional lighting fixture has a diameter of 50 ⁇ 500rmn.
  • a ceiling lamp made of a circular plate lamp is used as an embodiment of the circular plate lamp of the present invention. At this time, a center mounting hole is provided in the center of the heat dissipation plate 4, the reflection lining 5, and the reflection plate 1.
  • the round lamp Before the round lamp is installed on the ceiling or flat top of the suspended ceiling, a hole is opened in the flat top in advance, and a flat steel with a threaded hole is inserted into the hole as a support member, and then a screw is passed through the mounting hole of the circular plate lamp and The round plate light can be hoisted to the ceiling by screwing it into the flat threaded hole. Then, the power supply driver constant current source connected to the external switching power supply through the terminal 29 on the circular lamp can illuminate the LED chip of the circular lamp, that is, the LED light bar source, so that the emitted light is as described above. Illumination lights are formed on the smooth surface through the prism bodies.
  • the circular panel lamp of the present invention can be formed in the form of an energy saving lamp having a bayonet or spiral (spiral) base, such as a circular plate luminaire with a screw cap, as shown in FIG.
  • the circular plate lamp comprises a reflector 1, a plurality of lamp bodies 2, a heat dissipation frame 3, a heat dissipation plate 4A, a reflection lining 5, a screw base 7 and a power source constant current source 8.
  • Figures 17a and 17b some of the basic components of the circular luminaire are the same as in the previous embodiment, except that the heat sink 4' is different from the heat sink 4 of Figure 16 and is a conical cover.
  • the top of the cone is on a plane, and the radial surface of the cone is provided with a radial heat dissipation rib 41'.
  • the screw cap T is mounted on the plane of the cone top.
  • a conical space is formed between the heat dissipation plate 4' and the reflective lining 5, and the power source constant current source 8 can be mounted through a bracket (not shown), and the input end of the latter is connected to the spiral
  • the lamp cap 7 is connected to the terminal 29 of the lamp body 2 of the LED light bar source (not shown). In this way, the circular luminaire is screwed into the socket of the mains power supply through the screw base 7 to directly illuminate it.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Optical Elements Other Than Lenses (AREA)

Description

说明书 等截面三角形定向棱镜圆形反光板及由其制成的圆板灯 技术领域
本发明涉及一种微型棱镜式反光板， 尤其涉及一种等截面三角形棱镜圆 形反光板及由其制成各种圆板灯、 圆板灯具。
背景技术
在现有技术中反光片或者反光板主要是用于光线的反射、折射，后来人们 在其上设有可起到棱镜作用的条形微柱棱镜， 就能更好地用于调节太阳光反 射和折射， 最后又发展成可在其两端安置灯体而制成发光板以达到兼备照明 的作用。 在中国发明专利号 200510029375.1中， 本申请人曾提出了一种微型 棱镜式太阳光反光板及其调节控制装置， 其中， 反光板的一个表面上设有多 个平行的条状等腰直角三角形的微柱棱镜体， 其顶角为 90° ， 底角各为 45 ° ，其两端的端面上各设有盲孔，并在盲孔中安放包括 LED二极管的灯体。这 种反光板应用在具有玻璃吊顶、 窗户或天窗的厅室。 冬天可让太阳光充分射 入， 夏天可将太阳光全部或部分地反射出去， 即在遮挡太阳光的同时使厅室 内保持光线明亮， 而其两端的灯体可在阴暗天气或晚上提供补充照明。 尽管 这种结构的反光板在灯体作用下可使反光板整体形成一发光面， 但是因受到 设计结构的限制， 其照明光照度是比较低的。
在受到以上专利申请的启发后， 申请人设想如何将反光板和发光二极管 LED的组合结构推进到照明领域，并着手研究通过 LED使反光板的点光源变 为一个面光源， 也就是将 LED从装饰作用走向真正的照明。 为此， 申请人于 在 PCT(CN)/2007/ 002052， PCT(CN)/2008/ 000031专利申请中揭示了两种反 光板， 其中， 一种是平板， 其一表面上具有多个平行的条状微柱棱镜体， 每 一个微柱棱镜体的横截面为不等边直角三角形， 在与对称中心平面相邻的左 右两个不等腰直角三角形截面积最大， 向着左右两端其截面积依次递减的反 光板； 另一种是圆形板， 它是以中心轴线为对称中心的截面直角三角形微型 棱镜的圆形反光板， 在其径向方向形成多个环状微柱棱镜体， 其截面和截面 、积的结构都与平板的一样。 这两种反光板在其相对两端和圆周面上设置盲孔 和安装灯体后， 以圆形反光板为例， 在其上设置灯体， 这些灯体的发射中心 轴线是与反光板平面平行， 或者穿过反光板平面的各个环状棱镜体夹角的顶 点。 于是在灯体中发出光线将从各个微柱棱镜体中反射出来， 而产生良好的 照明效果。 ' 在进一步的研究中， 发现上述结构的平板和圆形反光板在定向照明上还 存在着在反光板通过棱镜在一个平面上反射和出射光线的不均匀性 （影响照 明效果） 以及反光板制成灯片的小型化， 也就是非对称的单侧微柱棱镜设计 布置， 这是在以上专利申请中都没有意识到的问题。
LED光源根据其结构特性必须进入照明， 但是 LED在它的发展进程中， 目前遇到了相当的阻力， 特别是大功率 LED应用上受到的挫折。 最大问题是 光衰， LED在室内照明应用中发展也不顺利。 归纳起来， 我们对 LED光源的 光特性缺少真正的认识， 以及 LED的 "灯"相配合的 "具"究竟如何， "灯" 和 "具"如何进行光学的、 机械的设计， 这就是本发明要解决的问题。 发明内容
本发明的目的是提供一种和 LED特性相配合.的光学技术， 使 LED在反 光板棱镜的一个平面上反射和出射光线十分均匀的等截面 （具有等同） 三角 形定向棱镜圆形反光板及由其制成的圆板灯或圆板灯具。
本发明的另一个目的是在室内照明中， 不采用大功率 LED， 避免因为 LED散热机构复杂，而使灯具复杂化。 以及由于大电流造成 LED的结温升高 导致流明值下降， 而采用小功率， 小电流 LED芯片， 让芯片发出的每一根光 束精确地定位好它们的发射， 传导和反射， 同时使 LED芯片所产生的热迅速 地排导， 从而使灯具达到最好效果。'
为了实现以上目的， 本发明采用了一个叫等截面三角形棱镜反光板的反 光技术， 它是圆圆板灯的主体。 在这种反光板中， 一系列等截面三角形棱镜 由中心向外展开， 形成系列的等截面三角形同心圆棱镜。 本发明的等截面三 角形微型棱镜定向圆形反光板称为棱镜面的一个表面上从中心轴线起的径向 方向设有多个同心的环状微柱棱镜体， 通过中心轴线所作的垂直截面， 每一 个环状微柱棱镜体的横截面为三角形， 呈锯齿形连续分布， 其中， 所述三角 形彼此形状相同截面积相等， 距中心轴线最近的一个环状微柱棱镜体的截面 三角形顶点距圆形反光板的称为光滑表面的另一个表面的距离最短， 向着左 右两侧的周边距光滑表面的距离依次逐渐递增， 各环状微柱棱镜体的截面三 角形顶点的径向连线是两条倾斜的直线， 它们与圆形反光板的中心轴线相交 于一点， 并与圆形反光板的光滑表面均形成夹角 α， α小于 45度， 而各个截 面三角形在直径方向上的距离或间距是相等的。
如以上所述的圆板灯， 其中， 所述锯齿形连续布置的截面三角形在其顶 点距光滑平面距离逐渐递减方向， 各个三角形右侧边和左侧边之一， 称为临 界边， 它的延长线和相对于棱镜面的光滑平面相交并与法线成一夹角， 这一 夹角范围从 40度到 90度。
如以上所述的圆板灯， 其中， 所述夹角 α小于 10度。
如以上所述的圆板灯， 其中， 所述截面三角形为直角三角形或非直角三 角形。
如以上所述的圆板奵， 其中， 所述透明塑料为聚碳酸脂。
本发明用圆形反光板制成的圆板灯包括反光板、 散热框和多个灯体， 所 述散热框是一具有中央通口的盘面和一处于盘面周围的环形盘边， 它套置在 反光板上以使通口所在的盘面边沿搭接在反光板光滑表面边缘部分， 并使其 盘边的内周壁的下部与反光板的凸缘相对抵接以及内周壁的其余部分与反光 板圆柱面形成间隙而构成与中心轴线同轴的凹槽式环形灯槽， 所述灯体为发 光二极管 LED、 灯泡、 电极管或预制成多个发光二极管灯管组件并各自安装 在环形灯槽内， 所述发光二极管的发射平面和棱镜面上的各个截面三角形顶 点的连线相交成 90— α的夹角。 如以上所述的圆板灯， 其中，还包括散热板， 所述散热板是一圆形的板， 其上表面上设有与板面垂直的多个间隔均布、 同心的环状散热筋， 它通过其 边沿部 与散热框的盘边的结合而覆盖在反光板上。
如以上所述的圆板灯， 其中， 所述散热板的每一环状散热筋上开设有均 布的缺口， 这些缺口径向对齐， 并且该散热板由铝合金材料制成。
如以上所述的圆板灯， 其中， 还包括一反射衬片， 所述反射衬片具有与 反光板近似相同的尺寸， 可选用塑料、 纸张或金属材料制成， 它夹装在反光 板和散热板之间。
如以上所述的圆板灯， 其中， 所述灯体为经预制的、 由含有多个发光 二极管贴片、 电阻和线路板构成的环形灯组件， 且该灯组件通过被弯曲成圆 环状并安放或嵌装于所述灯槽内以使灯槽内的发光二极管发射平面与灯槽的 反光板圆柱面相紧贴以及与反光板各截面三角形顶点连线相交成 90— α的夹 角。
如以上所述的圆板灯， 其中， 所述散热框盘边和散热圈的外周壁上设有 数条间隔均布径向突出的环形散热筋。
如以上所述的圆板灯， 其中， 所述三角形棱镜体向着发光二极管照射方 '向的各截面三角形的一边或临光的一边为受光临界边， 也是截面三角形面向 中心轴线的临界边，各截面三角形的受光临界边所在的环形面为受光临界面， 其中， 称为临界边， 它的延长线和相对于棱镜面的光滑平面相交并与法线成 一夹角， 这一夹角范围从 40度到 90度。
如以上所述的圆板灯，其中，所述发光二极管及 LED贴片是小功率、小 电流的二极管和芯片， 并可于一个 LED贴片中设置数个芯片。
如以上所述的圆板灯， 其中， 所述散热框、 散热板是由铝合金材料制成 的。
如以上所述的圆板灯， 其中， 所述散热板、 反射衬片和反光板的中心设 有一中心安装孔。
如以上所述的圆板灯，其中，还包括一螺旋灯头和一电源驱动器恒流源， 所述散热板为圆锥形的， 其锥顶是一平面上， 其锥面上设有放射状散热筋， 所述螺旋灯头安装在锥顶的平面上， 所述电源驱动器恒流源如果支架安装在 散热板 R反射衬片之间的空间内， 其输入端连接螺旋灯头， 输出端连接 LED 发光条状灯源的接线端子。
由上可见， 等截面三角形棱镜圆板灯是由电源驱动器恒流源； LED发光 条状灯源； 圆板灯铝散热框（散热器）， 等截面三角形棱镜片圆板二次光学原 件组成一个面光源发光引擎。 圆板灯的基本形状是圆板状， 当被点亮时， 光 线是从圆平面发出， 驱动电压为 12V或 24V直流， 电流为几十至几百毫安恒 流源， 可以被制作成几十毫米到几百毫米不等直径的片圆灯， 从而可以被应 用在作为室内照明， 居室平顶的吸顶灯， 卫生间的平顶灯， 和厨房吸顶灯， 以及橱柜的层圆板灯， 公共场所走道和大空间吸顶灯。 圆板灯同样可以作为 台灯， 几十毫米直径 1W圆板灯可以为老人晚上应用。
圆板灯体形扁平， 紧凑， 圆平面表面发光均匀无眩光， 外壳温度一般高 于环境气温十度， 12伏安全低电压， 电流总体电流小于 1000毫安， 寿命长， 灯具寿命为 40000小时， 因此可以广泛进入室内照明。
LED圆板灯例如 4.6W直径为 190毫米的圆板灯，在 400-500毫米时的照 度为 900Lux， 而距离 1M时为 195Lux。
灯光几乎和白炽灯一样， 光色好， 没有眩光， 光色均匀， 无闪烁， 使用 长寿命。
LED圆板灯是一种节能灯，它所消耗的功率为普通白炽灯的十分之一而 可以得到白炽灯同样的照度。
LED圆板灯结构简单， 使用简便， 运输安全， 采用材料环保， 可以循环 使用， LEC)片圆灯可以方便人们的生活， 工作和学习， 并能达到高效节能的 目的。 附图简要说明：
图 la、 lb是等截面三角形棱镜圆形反光板组成的圆板灯及其所用的等截 '面三角形棱镜圆形反光板的立体视图。
图 2a、 2b等截面三角形棱镜圆板灯的剖视图及其 A放大图。
' 图 3a是圆板灯之一的主视图， 表示移去散热板后的部分。
图 3b是沿图 3a的 A-A所作剖视图， 表示该圆板灯的棱镜面的一种棱镜 体设计构造以及在发光二极管照射下的光程分析。
图 4a是圆板灯之二的主视图， 表示移去散热板后的部分。
图 4b是沿图 4a的 A-A所作的剖视图， 表示该圆板灯棱镜面的又一种棱 镜体的设计以及¾ ^发光二极管照射下的光程分析。
图 5a是圆板灯之三的主视图， 表示移去散热板后的部分。
图 5b是沿图 5a的 A-A所作的剖视图， 表示该圆板灯的棱镜面又一种棱 镜体设计构造以及在发光二极管照射下的光程分析；
图 6是图 3b的圆板灯在中心轴线一侧各个三角形棱镜体在直径方向的间 距以及相邻三角形顶点连线与水平线形成夹角关系视图。
图 7是图 6的 A放大视图， 表示棱镜体的受光临界面为直角三角形斜边 并与棱镜法线相交成 45度。
图 8是图 4b的圆板灯在中心轴一侧各个三角形棱镜体在直径方向的间距 以及相邻三角形顶点连线与水平线形成夹角关系视图。
图 9、 是图 8的 B放大视图， 表示棱镜体的受光临界面为直角三角形斜 边并与棱镜法线相交成 45度。
图 10是图 5b的圆板灯在中心轴一侧各个三角形棱镜体在直径方向的间 距以及相邻三角形顶点连线与水平线形成夹角关系视图。
图 11是图 10的 C放大视图， 表示棱镜体的受光临界面为直角三角形斜 边并与棱镜法线相交成 45度。
图 12、 本发明 4W圆板灯与 60W的白炽灯在 0-1.5米的距离范围内照度 的对比曲线图。 - 图 13是本发明 4W圆板灯与 60W的白炽灯在 1.5-3米的距离范围内照度 的对比曲线图。 图 14,是本发明两种形状不同的等截面三角形棱镜 4W圆圆板灯在 0-1.5 米范围内照度的对比曲线图。
图 15 是本发明的两种形状不同的等截面三角形棱镜 4W 圆圆板灯在 1.5-3米范围内照度的相比曲线图。
图 16是采用本发明圆板灯制成作为吊顶灯的圆板灯具。
图 17a和图 17b分别表示具有螺紋灯头的圆板灯具的剖视图及其俯视图。 具体实施方式 '
请参阅图 la至图 2b， 示出了本发明第一实施例的等截面三角形微型棱 镜圆形反光板， 是在反光板 1称为棱镜面 11的一个表面上从对称中心 00' 起设有多个同心圆环状微柱棱镜体 111，每一个微柱棱镜体 111的横截面为三 角形， 包括直角三角形和非直角三角形， 其中， 所述多个三角形呈锯齿形连 续分布且彼此截面是相同相等的， 并且与对称中心相邻的左右两个三角形的 顶点距反光板称为光滑表面 12的另一表面的垂直距离最短， 向着左右两侧其 顶点距反光板的另一表面的垂直距离逐渐递增 （因中心平面或中心轴线两侧 是对称的， 故该垂直距离以左半为例）， 而各个三角形在长度方向的距离是相 等的， 各为 δ。 这样， 整个三角形棱镜体宽度为 2ηΧδ， 其中， η是对称中心 平面一侧的同心圆环状三角形棱镜体的数量。 另外， 在本发明中， 反光板除 了具有已设定的二个面，平坦的光滑表面 12和锯齿波三角形的棱镜面 11夕卜， 还可把近光滑表面 12的三角形顶点连起来， 以及把远离光滑表面 11的相邻 三角形顶点连起来， 乃以中心轴左半侧为例， 得到二条直线或连接所在的二 个平面， 这二条直线是倾斜的但相互平行。 该两条直线是与反光板的截面中 心轴线 00' 相交于 Α、 Η点， 为 ΑΝ、 ΗΜ， 它们和反光板的光滑表面 12均 形成夹角 α， a小于 45 度。 本发明的圆形反光板由透明塑料，例如聚碳酸脂 制成。 、
此外， 因设计的需要， 我们在本文中引入临界边的概念， 即锯齿形分布 的三角形在其顶点距光滑平面距离逐渐递减方向， 各个三角形右侧边和左侧 边之一， 称为临界边， 此临界边的延长线和相对于棱镜面的光滑平面相交并 与法线成一夹角， 这一夹角范围从 40度到 90度。
本发明在应用上述不同的等截面三角形的反光板、散热框与灯体一起制成 圆板灯时， 它在发光二极管照射下将产生怎样的反射和折射， 现说明如下： 请参阅图 la和图 lb， 根据本发明的圆板灯， 它包括圆形反光板 1、多个 灯体 2和散热框 3， 其中， 反光板 1在距中心轴线 00' 最远的一环状微柱棱 镜体外还留有向外延伸的边缘部分 113，该边缘部分 113在其外周面保留有部 分圆柱面 114外；并在所述圆柱面 114下部的邻接光滑表面 12处设有环形凸 缘 115。
所述散热框 3是一具有中央通口的盘面 31和一处于盘面周围的环形盘 边 32，如图 2a所示。它套置在反光板上以使盘面的通口的边沿搭接在反光板 光滑表面一侧的边缘部分 113， 并且它与反光板通过散热框盘边 32的内周壁 下部与反光板凸缘 115相对抵接和内周壁的其余部分与反光板圆柱面 114形 成间隙而构成与中心轴线 00' 同轴的环形凹槽， 即灯槽 14。 较佳， 所述散 热框的盘边 32 的外周壁上还可设有数条间隔均布径向突出的环形散热筋 33 以在它们相间的空间形成散热槽 27。 散热框 3可由铝合金材料制成， 以保证 良好的散热效果。
在一较佳实施例中， 散热框 3是一个铝合金独立元件， 其外周壁具有散 热筋 33 '， 当套置在反光板上,其内周壁下部与反光板凸缘 115相对抵接和内 周壁的其余部分与反光板圆柱面 114形成间隙而构成与中心轴线 00'同轴的 环形凹槽。 散热圈 32' 部分也是由铝合金材料制成。
所述灯体 2为发光二极管 LED,灯泡或电极管或预制成多个发光二极管 灯管组件并各自安装在环形灯槽 14内，所述发光二极管的发射平面和棱镜面 上的各个截面三角形顶点的连线相交成 90— α的夹角。
在本实施例中，灯体 2采用经预制而成的发光二极管组件，该组件是由多 个发光二极管贴片 21、 电阻和线路板 22构成的环形灯组件， 多个发光二极 管贴片 21间隔均布地随着在线路板 22上， 且该灯组件通过线路板的弯曲而 成圆环状,然后安放或嵌装于所述灯槽 14内并使的发光二极管贴片 21的发射 平面与灯槽 14的反光板的圆柱面 114相紧贴并和反光板各截面三.角形顶点连 线相交成 9Q— α的夹角。 ，
灯槽 14内所安装的所述 LED发光二极管贴片（统称发光二极管） 21的 发射的光线主轴是平行于反光板光滑表面 12的一束光，当所述反光板 1中心 轴线一侧上的等截面三角形棱镜体有 n个时，相应地每个 LED发光二极管贴 片 21具有面积 A，该 LED的面积 A分割为与棱镜体 111数量相等的 n等分， 如果所提供的总的光子能量为 E,那么每一等分面积上分配到 E/A/n的足够光 子能量， 以保证在棱镜面 11的每个棱镜体 111都被照射到射光并较为均勾。 本发明使用的 LED发光二极管贴片是低功率管， 并可于一个 LED发光二极 管贴片中设置数个芯片。这种多芯片的 LED发光二极管贴片以矩阵形式排列 成一行， 安装在圆板灯的灯槽 14中。
在此用数学式来表示等截面三角形棱镜的光学结构特点： 这二条直线 AN和' HM和光滑表面形成的夹角 ， 可通过 A、 M点作光滑表面的平行线 变换得到（夹角 α)，通常所述夹角 α小于 10度。 所述二条平行直线为 ΑΚ和 ME, 如图 2所示。 假定以平行线 AK为例， 中心轴一侧的棱镜体的第一个截 面三角形 FCA为不等腰直角三角形'， 由 F点 （相邻三角形顶点） 向平行线 所作垂线是 FB， 该垂线 FB是为该直角三角形的一直角边， 以 表示， 第二 个至第 n个相邻三角形顶点采用上述相同的方式向平行直线 AK所作垂线得 到一系列直角边 h2、 h3...... hn-1. hn, 因此 h!、 h2、 h3...... hn-1、 hn表示从对称中 心轴起一侧的 l〜n个三角形的所述顶点的垂直距离， BA为一个截面三角形 在平行直线 AK上的一段， 也是另一直角边并等于截面三角形在长度方向的 间距 δ， 因此， 由公式 tg a = ^即 tg a = ^， 可求出中心轴一侧的第一个 直角三角形相邻三角形顶点距平行直线 AK的垂直距离 h 因 FB=h BA=S， 则 X tg a。 同理可推导出第二到第 n个直角三角形相邻三角形顶点距平 行直线 AK 的垂直距离 h2、 h3...... I ^ l 如中心轴一侧的第 n个三角形为 tg a =」^， hn为第 n个相邻截面三角形顶点距平行线 AK的垂直线， H是 发光二极管贴片的高度或直径， 通常应该满足 hn=H， 以便在设计发光二极管 贴片时使其在高度方向可通过作为发射的光线主轴通路的相邻三角形顶点的 垂直距离照射到每一三角形的受光临界面上并提供足够的光子能量。
请参阅图 3至图 5， 其中， 图 3a、 图 4a、 图 5a中示出了圆板灯还设有 两个接线端子 29， 反光板 1在位于灯槽外侧的边缘部分 13的一端端面上各 设有一插孔， 所述接线端子 29分别安装于插孔中， 并通过导线与长条形灯组 件 2的引线电连接，以便可利用接线端子 29来外接供电电源。实际上，图 3〜 和图 5是为了说明圆板灯的一个系列的中心对称形式等截面三角形设计。 首 先， 图 3a和图 3b表示圆板灯之 的等截面三角形是 ' 45° 三角形， 它的中心 轴线 OO'左右二列三角形具有各自向外的垂直的直角边 （LED光线由此射入 棱镜的边或面） 15和各自向内的斜边。 这些斜边是向着发光二极管照射方向 (LED 光轴)的或临光的， 因此被定义为临界边 （临界面） 或受光临界边 （受 光临界面） 16。 在该等截面三角形反光板中， 各个直角三角形棱镜体的法线 与受光临界边的延长线相交成 45度。
图 4a和图 4b表示圆板灯之二的等截面三角形是不等腰直角三角形， 它 的中心轴线 OO'左右二列直角三角形具有各自向内向外的两条直角边 17、 18, 其中， 那些向外， 也是 LED光线由此射入棱镜的边或面被定义为射入直角边 17， 而那些向内的直角边向着发光二极管照射方向 (LED 光轴)， 被定义为临 界边或受光临界边 18。 在该等截面不等腰直角三角形反光板中， 各个直角三 角形棱镜体的法线 F与受光临界边 18的延长线相交成 45度。
图 5a和图 5b表示圆板灯之三的等截面三角形是非直角三角形， 它的中 心平面或中心轴线 00'左右二列三角形具有各自向内向外的两条长短不等的 三角形边 19、 24。 这些向外的短边向着发光二极管照射方向， 被定义为临界 边或受光临界边 24。 在该等截面三角形反光板中， 各个三角形棱镜体的法线 F与受光临界边 24的延长线相交成 45度。
从图 3至图 5中可看到以上圆板灯是如何形成定向照明的， 如果在该等 截面三角形反光板中， 各个三角形棱镜体的法线与受光临界边的延长线相交 成 45度，那么等截面三角形棱镜圆板灯在发光二极管贴片的照射下产生的是 与该棱镜圆板灯光滑表面 12的法线 F相平行的灯光 c。
根据上述的不同等截面三角形反光板制成的圆板灯可形成从光滑表面以 一定角度出射的灯光， 并集合成定向照明。 于是， 术语 "定向照明"是指装 有发光二极管 LED的等截面三角形棱镜反光板出射的光线与棱镜平面的法线 形成一定的夹角， 这些出射光线的总成即为定向照明。 图 3〜图 6的任一等截 面三角形棱镜圆板灯所产生的可以是和光滑表面的法线构成一个定向夹角的 灯光。 如此， 无论发光二极管贴片 21或多芯片的 LED贴片各自可以一点光 源方式向 n个等截面三角形棱镜体发射灯光， 经受光临界边和光滑表面上的 反射和折射各自形成一线条状出射光， 多个发光二极管贴片的条状出射光排 列集合密集地散布在整个平面上而组成一个面照射灯光并具有高的照度。 这 就是本发明的圆板灯可替代常规的白炽灯、 白炽灯的主要原理。
请参阅图 6至图 11，图中所示的三个等截面三角形棱镜圆板灯的共同点 是受光临界面或临界边的延长线 16、 18、 24都和光滑表面 12的法线构成一 个 45° 夹角并且产生与光滑表面的法线平行的出射灯光。 经分析表明， 图中 所采用的表示等截面三角形棱镜的受^:临界面的延长线和棱镜的光滑表面的 法线的夹角是 45° 。 这是三个等截面三角形棱镜圆板灯的共性。 这些圆板灯 所产生的光是和光滑表面的法线平行， 如图 3、 图 4和图 5所示。
图 8是棱镜体的局部放大图， 图中示出了三角形棱镜其中一个垂直面或 边 OM ( 15 ) 是一 LED光线由此射入棱镜的直角边， 该直角三角形在长度方 向的间距各为 δΐ ; 图 10所示的直角三角形棱镜其中一 LED光线由此射入棱 镜的直角面或边 OM' ( 17)， 该直角三角形在长度方向的间距各为 δ2; 图 11所示的三角形棱镜其中一 LED光线由此射入棱镜的直角面或边 OM， '，该 三角形在长度方向的间距各为 δ3。 由此， 应该注意到， 在这些棱镜体中， 不 论直角三角形或非直角三角形在保持等截面三角形棱镜具有相等面积的状况 下， 在同样宽度的反光板上， 图 7的反光板的各个三角形在长度方向的距离 δ1， 是最短、 最小的； 图 11的反光板的各个三角形在长度方向的距离 δ3， 是 最长、 最大的； 而图 9的反光板的各个直角三角形在长度方向的距离 δ2， 则 介于 δΐ和 δ3之间。 如此， 图 7的反光板上可设置较多个数的三角形棱环， 图 11的反光板上可设置较少个数的三角形棱环， 相应地， 同样宽度的的反光 板， 三角形棱镜环越多， 出射灯光越多光线越强， 三角形棱镜条越少出射灯 光越少光线越弱。
请再参阅图 3b、 图 4b， 图 5b， 从图中可见 LED贴片 21精确地定位在灯 槽 14内， LED发光二极管贴片的光轴和圆板灯平面平行， LED贴片发出的 平行光线一一射落在依次排列的三角形棱镜临界点部位发生全反射， 从棱镜 光滑表面透出， 形成一个和平面法线相平行的定向照明。
本发明采用的是 LED低功率，小电流的贴片。 LED发光二极管的 PN结 在工作 80%的电流产生热量， 为了保证 LED长时间的工作必须让 PN结处在 较低的温度下工作， 就必须及时地把 PN结所产生的热量及时地移去。 我们 在反光板灯槽外侧方向的相对边缘 （这个边缘部分刚好又是灯具的边框） 采 用导热性能好的铝合金，因此在边缘部分设置具有散热槽 27的铝合金散热框 3以保持良好的导热性能。
请再参阅图 la、 图 2a和图 16， 图中示出了本发明的另一实施例的圆板 灯， 它除了具有圆形反光板 1、 多个灯体 2、 散热框 3外，还包括散热板 4或 / 和反射衬片 5， 所述散热板 4是一像盖板一样的圆形板。 最好，其上表面上设 有多个间隔均布、 同心的环状散热筋 41， 它通过其边沿部分与散热框的盘边 的结合， 包括螺钉 6连接而覆盖在反光板上。散热板 4的环状散热筋 41传导 灯体 2的发散的热量， 在向空方向进入环状散热筋 41之间形成散热槽， 以便 促使空气对流， 使热量可从圆心中间向周围发散。 此外， 散热板 4的每一环 状散热筋 41.上开设有均布的若干缺口 411，较佳，这些缺口是对齐地排成列， 以使热量更好地发散到灯外， 并且该散热板由铝合金材料制成。 所述反射衬 片 5具有反光板近似相同的尺寸， 可选用塑料、 纸张或金属材料制成， 它夹 装在反光板 1和散热板 4之间。
请参阅图 12和图 13， 图中示出了本发明的 4W 圆板 ¾ "与 60W白炽灯在 不同距离范围内照度的'曲线对比， 其中， 用黑点和黑色连线表示 4W 圆板灯 在一定距离范围内的照度，用用灰黑色点和灰黑色连线表示很少 60W白炽灯 在一定距离范围内的照度， 并且 4W 圆板灯的等截面三角形棱镜体的顶角为 45° (如图 3所示的形式）。 根据对两者测试结果表明， 在 0.3到 1.5米距离 内 4瓦圆板灯的照度可从 1350LUX至 70Lux左右， 60瓦白炽灯在同样距离内 的照度是从 800Lux下降至 70I:uX以下，在 1.5到 3米距离内 4'瓦圆板灯的照 度可从 60Lux至 20Lux左右，而 60瓦白炽灯的照度是 30Lux至 10Lux。由此 可见本发明的装有 LED的等截面三角形棱镜定向圆板灯能提供极佳的照明亮 度， 特别是在距离圆板灯 3米的地方的照度还达 40Lx， 因此可作为一新的灯 源应用于照明领域， 并可以取代白炽灯， 并具有节约电能、 照射明亮， 散热 量小， 结构合理和使用方便等等优点。
图 14和图 15是本发明的两种形状不同的等截面三角形棱镜的 4W 圆板 灯在 0.3〜1.5米和 1.5米到 3米的距离范围内照度的曲线对比图， 其中， 用 黑点和黑色连线表示等截面三角形棱镜体的顶角为 45° 的反光板制成的 4W 圆板灯 （如图 3所示的形式） 在一定距离范围内的照度， 用灰黑色点和灰黑 色连线表示等截面三角形棱镜体的顶角为 9.0° 的反光板制成的 4W 圆板灯 (如图 4所示的形式） 在一定距离范围内的照度。
很明显， 在相同功率下， 装有 LED的等截面三角形棱镜圆板灯在棱镜体 顶角 45° 下和装有 LED的等截面三角形棱镜圆板灯在棱镜体顶角 90° 下的 照度对比。 从图 14和图 15的曲线 t ^较， 结果是具有顶角 45° 圆板灯比具有 顶角 90° 圆板灯的照度要大， 尤其在 1.5米到 3米照度曲线明确地指出， 4 瓦的等截面三角形圆板灯在顶角 45° 时比 4瓦的等截面三角形圆板灯在顶角 90° 时照度几乎高出一倍。 这是因为 4瓦的等截面三角形圆板灯在顶角 45° 时的临界面要比 4瓦 LED等截面三角形圆板灯在顶角 90° 时的临界^的个数 正好多一倍。 这也就证实了本发明的圆板灯在光学设计指导思想的理念上是 可取的。
请参阅图 16，应该理解到，本发明的圆板灯可象其它的灯泡或日光灯一样 通过配置灯座、 支架、 装饰灯罩、 电源驱动器恒流源制成各种各样用途的圆 板灯具。 这种圆板灯具产品的结构简约， 定向照明灯具直径 50〜500rmn。 这 里， 作为本发明的圆板灯具的实施例为一圆板灯制成的吊顶灯。 此时， 所述 散热板 4、 反射衬片 5和反光板 1的中心设有一中心安装孔。 在圆板灯安装 于吊顶的天花板或平顶前， 预先在平顶上开一孔， 在该孔中塞入一带螺紋孔 扁钢作为支承件， 然后以一螺钉穿过圆板灯安装孔并与扁螺紋孔螺接， 就 可将圆板灯吊装到天花板上。接着， 通过圆板灯上的接线端子 29连接外部开 关电源的电源驱动器恒流源可点亮圆板灯的发光二极管贴片， 即 LED发光条 状灯源，使得其发射的光线如前所述经诸棱镜体而在光滑表面形成照明灯光。 在另一个实施例中， 本发明的圆板灯可制成具有卡口或螺旋 （螺口） 灯头的 节能灯的形式， 例如在图 17中示出了一种带螺旋灯头的圆板灯具。该圆板灯 具包括反光板 1、 多个灯体 2、 散热框 3、 散热板 4丄、 反射衬片 5、 螺旋灯头 7和电源驱动器恒流源 8。 从图 17a和图 17b中可以看到， 此圆板灯具的一些 基本部件是与前述实施例一样的， 只是散热板 4' 不同于图 16的散热板 4， 是一圆锥形的盖板， 其锥顶是一平面上， 其锥面上设有放射状散热筋 41 '。 所述螺旋灯头 T安装在锥顶的平面上。 在所述散热板 4 ' 则覆盖在反光板 1 和反射衬片 5上后， 它的边沿部分与散热框 3的盘边可通过螺钉 （图中未画 出）使散热板 4' 散热框 3相对结合， 与此同时， 在散热板 4' 和反射衬片 5 之间形成一圆锥形空间， 可通过支架 （图中未画出） 安装电源驱动器恒流 源 8，后者的输入端连接螺旋灯头 7，输出端连接 LED发光条状灯源的灯体 2 的接线端子 29 (图中未画出）。 这样， 本圆板灯具通过螺旋灯头 7拧入到接 到市电电源的灯座上可直接将它点亮。

Claims

权利要求书
1 . 一种等截面三角形微型棱镜定向圆形反光板， 所述圆形反光板的 称为棱镜面的一个表面上从中心轴线起的径向方向设有多个同心的环状 微柱棱镜体， 通过中心轴线所作的垂直截面， 每一个环状微柱棱镜体的横 截面为三角形， 呈锯齿形连续分布， 其特征在于， 所述三角形彼此形状相 同截面积相等， 距中心轴线最近的一个环状微柱棱镜体的截面三角形顶点 距圆形反光板的称为光滑表面的另一个表面的距离最短， 向着左右两侧的 周边距光滑表面的距离依次逐渐递增， 各环状微柱棱镜体的截面三角形 顶点的径向连线是两条倾斜的直线， 它们与圆形反光板的中心轴线相交于 一点， 并与圆形反光板的光滑表面均形成夹角 α， α小于 45 度， 而各个 截面三角形在直径方向上的距离或间距是相等的。 s
2. 如权利要求 1所述的圆板灯， 其特征在于， 所述锯齿形连续布置 的截面三角形在其顶点距光滑平面距离逐渐递减方向， 各个三角形右侧边 和左恻边之一， 称为临界边， 它的延长线和相对于棱镜面的光滑平面相交 并与法线成一夹角， 这一夹角范围从 40度到 90度。
3. 如权利要求 1所述的圆形反光板， 其特征在于， 所述夹角 α小于 10度。
4. 如权利要求 1所述的圆 ^反光板， 其特征在于， 所述反光板在距 中心轴线最远的一环状微柱棱镜体外留有圆柱面围绕的边缘部分， 所述圆 柱面在邻接光滑表面处设有凸缘。
5. 如权利要求 1所述的圆形反光板， 其特征在于， 所述截面三角形 为直角三角形或非直角三角形。
6. 如权利要求 1所述的圆形反光板， 其特征在于， 所述圆形反光板 是由透明塑料制成。
7. 如权利要求 5所述的圆形反光板， 其特征在于， 所述透明塑料为 聚碳酸脂。
8. 一种用圆形反光板制成的圆板灯， 其特征在于， 包括反光板、 散 热框和多个灯体， 所述散热框是一具有中央通口的盘面和一处于盘面周围 的环形盘边， 它套置在反光板上以使通口所在的盘面边沿搭接在反光板光 滑表面边缘部分， 并使其盘边的内周壁的下部与反光板的凸缘相对抵接以 及内周壁的其余部分与反光板圆柱面形成间隙而构成与中心轴线同轴的 凹槽式环形灯槽， 所述灯体为发光二极管 LED、 灯泡、 电极管或预制成多 个发光二极管灯管组件并各自安装在环形灯槽内， 所述发光二极管的发射 平面和棱镜面上的各个截面三角形顶点的连线相交成 90— α的夹角。
9. 如权利要求 7所述的圆板灯， 其特征在于， 还包括散热板， 所述 散热板是一圆形的板， 其上表面上设有与板面垂直的多个间隔均布、 同心 的环状散热筋， 它通过其边沿部分与散热框的盘边的结合而覆盖在反光板 上。
10. 如权利要求 9所述的圆板灯， 其特征在于， 所述散热板的每一环 状散热筋上开设有均布的缺口， 这些缺口径向对齐， 并且该散热板由铝合 金材料制成。
11，.如权利要求 7所述的圆板灯， 其特征在于， 还包括一反射衬片， 所述反射衬片具有与反光板近似相同的尺寸， 可选用塑料、 纸张或金属材 料制成， 它夹装在反光板和散热板之间。
12. 如权利要求 7所述的圆板灯， 其特征在于， 所述灯体为经预制 的、 由含有多个发光二极管贴片、 电阻和线路板构成的环形灯组件， 且该 灯组件通过被弯曲成圆环状并安放或嵌装于所述灯槽内以使灯槽内的发 光二极管发射平面与灯槽的反光板圆柱面相紧贴以及与反光板各截面三 角形顶点连线相交成 90— α的夹角。
13. 如权利要求 7或 8所述的圆板灯， 其特征在于， 所述散热框盘边 和散热圈的外周壁上设有数条间隔均布径向突出的环形散热筋。
' .
14. 如权利要求 7所述的圆板灯， 其特征在于， 所述三角形棱镜体向 着发光二极管照射方向的各截面三角形的一边或临光的一边为受光临界 边， 也是截面三角形面向中心轴线的临界边， 各截面三角形的受光临界边 所在的环形面为受光临界面， 其中， 称为临界边， 它的延长线和相对于棱 镜面的光滑平面相交并与法线成一夹角， 这一夹角范围从 40度到 90度。
15. 如权利要求 7、 11或 14所述的圆板灯， 其特征在于， 所述发光 二极管光线主轴是平行于圆形反光板光滑表面和向着中心轴线的一束光， 当所述圆形反光板中心轴线一侧上的截面三角形棱镜体有 n个时， 相应地 每个发光二极管 LED发光平面具有面积 A， 该发光平面面积 A分割为与 棱镜体数量相等的 n等分， 如果所提供的总的光子能量为 E,那么每一等分 面积上分配到 E/A/n的足够光子能量， 因此， 发光二极管发射的光线可径 向、 均匀地照射到中心轴线方向的任一截面三角形的受光临界边或三角形 棱镜体的受光临界面上。
16. 如权利要求 7 所述的圆板灯， 其 征在于， 所述发光二极管及 LED贴片是小功率、 小电流的二极管和芯片， 并可于一个 LED贴片中设 置数个芯片。
17. 如权利要求 7或 12所述的圆板灯， 其特征在于， 还包括一接线 端子， 所述圆形反光板在其一侧位于'灯槽内侧的边缘部分上各设有一插 孔，所述接线端子安装于插孔中，并通过导线与环状灯组件的引线电连接。
18. 如权利要求 7、 8或 9所述的圆板灯， 其特征在于， 所述散热框、 散热板是由铝合金材料制成的。
19. 如权利要求 7、 9或 11所述的圆板灯， 其特征在于， 所述散热板、 反射衬片和反光板的中心设有一中心安装孔。
20. 如权利要求 7、 9或 11所述的圆板灯， 其特征在于， 还包括一螺 旋灯头和一电源驱动器恒流源， 所述散热板为圆锥形的， 其锥顶是一平面 上， 其锥面上设有放射状散热筋， 所述螺旋灯头安装在锥顶的平面上， 所 述电源驱动器恒流源如果支架安装在散热板祖反射衬片之间的空间内， 其 输入端连接螺旋灯头， 输出端连接 LED发光条状灯源的接线端子。
PCT/CN2008/001534 2008-08-26 2008-08-26 等截面三角形定向棱镜圆形反光板及由其制成的圆板灯 WO2010022539A1 (zh)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2011524159A JP2012501001A (ja) 2008-08-26 2008-08-26 等断面の三角プリズムを備える指向性円形反射板及びそれを有する円盤状ライト
EP08800532A EP2330341A1 (en) 2008-08-26 2008-08-26 Circular light-reflecting plate with triangular oriented prisms having identical cross sections and circular plate lamp made therefrom
KR1020117007016A KR101292481B1 (ko) 2008-08-26 2008-08-26 동일한 단면을 구비하는 삼각형에 기초한 프리즘을 구비하는 원형 광 반사판 및 그것을 이용하여 만들어지는 원판형 램프
US13/060,932 US8616736B2 (en) 2008-08-26 2008-08-26 Circular light-reflecting plate with triangular oriented prisms having identical cross section and circular plate lamp made therefrom
CN2008801010376A CN101932875B (zh) 2008-08-26 2008-08-26 等截面三角形定向棱镜圆形反光板及由其制成的圆板灯
PCT/CN2008/001534 WO2010022539A1 (zh) 2008-08-26 2008-08-26 等截面三角形定向棱镜圆形反光板及由其制成的圆板灯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2008/001534 WO2010022539A1 (zh) 2008-08-26 2008-08-26 等截面三角形定向棱镜圆形反光板及由其制成的圆板灯

Publications (1)

Publication Number Publication Date
WO2010022539A1 true WO2010022539A1 (zh) 2010-03-04

Family

ID=41720764

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/001534 WO2010022539A1 (zh) 2008-08-26 2008-08-26 等截面三角形定向棱镜圆形反光板及由其制成的圆板灯

Country Status (6)

Country Link
US (1) US8616736B2 (zh)
EP (1) EP2330341A1 (zh)
JP (1) JP2012501001A (zh)
KR (1) KR101292481B1 (zh)
CN (1) CN101932875B (zh)
WO (1) WO2010022539A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103090282A (zh) * 2012-06-08 2013-05-08 上海宜美电子科技有限公司 一种led吸顶灯
CN103712095A (zh) * 2012-10-02 2014-04-09 胜华科技股份有限公司 照明装置
US8956035B2 (en) 2010-04-30 2015-02-17 Dingguo Pan Light guide plate with micro prisms, manufacture methode thereof and plate shape lamp and plate-shape lamp fixture made thereby
CN108253380A (zh) * 2016-12-28 2018-07-06 苏州欧普照明有限公司 一种光学元件以及具有该光学元件的照明装置

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4569683B2 (ja) * 2007-10-16 2010-10-27 東芝ライテック株式会社 発光素子ランプ及び照明器具
US8579865B2 (en) * 2009-03-20 2013-11-12 Antares Pharma, Inc. Hazardous agent injection system
US9255685B2 (en) 2012-05-03 2016-02-09 Lighting Science Group Corporation Luminaire with prismatic optic
US8899776B2 (en) 2012-05-07 2014-12-02 Lighting Science Group Corporation Low-angle thoroughfare surface lighting device
US8899775B2 (en) 2013-03-15 2014-12-02 Lighting Science Group Corporation Low-angle thoroughfare surface lighting device
US9127818B2 (en) * 2012-10-03 2015-09-08 Lighting Science Group Corporation Elongated LED luminaire and associated methods
US9322516B2 (en) 2012-11-07 2016-04-26 Lighting Science Group Corporation Luminaire having vented optical chamber and associated methods
US9459397B2 (en) 2013-03-12 2016-10-04 Lighting Science Group Corporation Edge lit lighting device
US9255670B2 (en) 2013-03-15 2016-02-09 Lighting Science Group Corporation Street lighting device for communicating with observers and associated methods
CN103307482A (zh) * 2013-03-25 2013-09-18 国家电网公司 一种变电站厂区照明灯具
US9046224B2 (en) * 2013-05-07 2015-06-02 Technical Consumer Products, Inc. LED lamp with controlled distribution
US9429294B2 (en) 2013-11-11 2016-08-30 Lighting Science Group Corporation System for directional control of light and associated methods
KR102147938B1 (ko) * 2013-12-27 2020-08-25 엘지이노텍 주식회사 조명장치
US10288238B2 (en) 2015-06-23 2019-05-14 Axis Lighting Inc. Supporting accessories for ceiling structures
USD859719S1 (en) 2015-06-23 2019-09-10 Axis Lighting Inc. Luminaire
US11467345B2 (en) 2015-08-05 2022-10-11 Playhard, Inc. Systems and methods for a stellate beam splitter
CN109690182B (zh) * 2016-08-29 2021-11-26 昕诺飞控股有限公司 具有板状光导的灯具
WO2018158110A1 (en) * 2017-03-02 2018-09-07 Philips Lighting Holding B.V. Luminaire with light guide
CN109838760A (zh) * 2017-11-24 2019-06-04 核工业西南物理研究院 一种平面型led灯具反光杯
CN209399212U (zh) * 2019-02-22 2019-09-17 漳州立达信灯具有限公司 一种灯具
IT201900016877A1 (it) * 2019-09-20 2021-03-20 Artemide Spa Lampada di illuminazione a led

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0364228A2 (en) * 1988-10-11 1990-04-18 Minnesota Mining And Manufacturing Company Light fixture
EP0766037A1 (en) * 1995-09-27 1997-04-02 MAGNETI MARELLI S.p.A. Lighting device that can be constructed with reduced thickness, especially a headlamp or other external vehicle lamp
JPH10213712A (ja) * 1997-01-30 1998-08-11 Fujitsu Kasei Kk バックライトユニット
CN2499688Y (zh) * 2001-06-29 2002-07-10 黄钦正 发光二极管灯组改良结构
US6435687B1 (en) * 1999-03-03 2002-08-20 Nec Corporation Reflection illumination device for object to be illuminated
JP2003272424A (ja) * 2002-03-12 2003-09-26 Fujitsu Kasei Kk 面照明装置と液晶表示装置
CN2680973Y (zh) * 2003-12-29 2005-02-23 奥迪通用照明(广州)有限公司 无闪频的环形灯具
US7025482B2 (en) * 2002-11-08 2006-04-11 Alps Electric Co., Ltd. Light guide member and illuminating device
CN2876545Y (zh) * 2005-02-07 2007-03-07 杨帅利 Led柔光地灯及草坪灯

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5050946A (en) * 1990-09-27 1991-09-24 Compaq Computer Corporation Faceted light pipe
US5303322A (en) * 1992-03-23 1994-04-12 Nioptics Corporation Tapered multilayer luminaire devices
JP3002618B2 (ja) * 1993-07-05 2000-01-24 富士通株式会社 面光源ユニット
JPH09146479A (ja) * 1995-11-24 1997-06-06 Toyoda Gosei Co Ltd 車両用メータ
JP3608274B2 (ja) * 1995-11-30 2005-01-05 豊田合成株式会社 車両用メータ
US5590945A (en) * 1995-07-26 1997-01-07 Industrial Devices, Inc. Illuminated line of light using point light source
JPH11102611A (ja) * 1997-09-26 1999-04-13 Matsushita Electric Works Ltd 照明器具
JP3982174B2 (ja) * 1999-12-09 2007-09-26 松下電工株式会社 光照射装置
US6443582B1 (en) * 2000-08-30 2002-09-03 Visteon Corporation Edge-lit light assembly with light guiding structures
JP4057389B2 (ja) 2002-10-10 2008-03-05 アルプス電気株式会社 導光材および照明装置
JP2004171948A (ja) 2002-11-20 2004-06-17 Harison Toshiba Lighting Corp バックライト装置
PL361749A1 (en) 2003-08-20 2005-02-21 Hanplast Sp.z o.o. Position finding lamp
KR20050032838A (ko) 2003-10-02 2005-04-08 엘지.필립스 엘시디 주식회사 액정표시장치용 백라이트 유닛
CN100420967C (zh) 2005-09-02 2008-09-24 潘定国 微型棱镜式太阳光反光板及其调节控制装置
WO2007138763A1 (ja) * 2006-06-01 2007-12-06 Sharp Kabushiki Kaisha 面状光源装置及びこれを設けた液晶表示装置
JP2008066032A (ja) * 2006-09-05 2008-03-21 Moritex Corp 照明装置
WO2009003313A1 (fr) 2007-07-02 2009-01-08 Dingguo Pan Plaque réfléchissante à microprismes pour rayonnement solaire
WO2009100560A1 (zh) 2008-01-31 2009-08-20 Dingguo Pan 变截面不等边直角三角形棱镜圆盘形反光板和用它制成的灯具

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0364228A2 (en) * 1988-10-11 1990-04-18 Minnesota Mining And Manufacturing Company Light fixture
EP0766037A1 (en) * 1995-09-27 1997-04-02 MAGNETI MARELLI S.p.A. Lighting device that can be constructed with reduced thickness, especially a headlamp or other external vehicle lamp
JPH10213712A (ja) * 1997-01-30 1998-08-11 Fujitsu Kasei Kk バックライトユニット
US6435687B1 (en) * 1999-03-03 2002-08-20 Nec Corporation Reflection illumination device for object to be illuminated
CN2499688Y (zh) * 2001-06-29 2002-07-10 黄钦正 发光二极管灯组改良结构
JP2003272424A (ja) * 2002-03-12 2003-09-26 Fujitsu Kasei Kk 面照明装置と液晶表示装置
US7025482B2 (en) * 2002-11-08 2006-04-11 Alps Electric Co., Ltd. Light guide member and illuminating device
CN2680973Y (zh) * 2003-12-29 2005-02-23 奥迪通用照明(广州)有限公司 无闪频的环形灯具
CN2876545Y (zh) * 2005-02-07 2007-03-07 杨帅利 Led柔光地灯及草坪灯

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8956035B2 (en) 2010-04-30 2015-02-17 Dingguo Pan Light guide plate with micro prisms, manufacture methode thereof and plate shape lamp and plate-shape lamp fixture made thereby
CN103090282A (zh) * 2012-06-08 2013-05-08 上海宜美电子科技有限公司 一种led吸顶灯
CN103090282B (zh) * 2012-06-08 2016-02-03 江苏宜美照明科技股份有限公司 一种led吸顶灯
CN103712095A (zh) * 2012-10-02 2014-04-09 胜华科技股份有限公司 照明装置
CN108253380A (zh) * 2016-12-28 2018-07-06 苏州欧普照明有限公司 一种光学元件以及具有该光学元件的照明装置

Also Published As

Publication number Publication date
US8616736B2 (en) 2013-12-31
CN101932875A (zh) 2010-12-29
KR20110079805A (ko) 2011-07-08
CN101932875B (zh) 2013-01-09
EP2330341A1 (en) 2011-06-08
JP2012501001A (ja) 2012-01-12
KR101292481B1 (ko) 2013-07-31
US20110242821A1 (en) 2011-10-06

Similar Documents

Publication Publication Date Title
WO2010022539A1 (zh) 等截面三角形定向棱镜圆形反光板及由其制成的圆板灯
US9151477B2 (en) Lighting device and method of installing light emitter
US9151457B2 (en) Lighting device and method of installing light emitter
US9518715B2 (en) Lighting devices that comprise one or more solid state light emitters
US10228111B2 (en) Standardized troffer fixture
US11441747B2 (en) Lighting fixture with reflector and template PCB
US8752978B2 (en) LED retrofit luminaire tubes
JP4944948B2 (ja) 照明装置
US20110267821A1 (en) Lighting device with heat dissipation elements
EP3832200A1 (en) Troffer-style fixture
BRPI0913155A2 (pt) dispositivo de iluminação por led
US8803414B2 (en) Lighting device
TWI489060B (zh) 發光二極體燈泡
CN201954332U (zh) Led节能灯泡
KR101307500B1 (ko) 반사판, 평판형 램프 및 그를 포함하는 평판형 조명용구
KR101863233B1 (ko) 배광각 조절기능이 구비된 led 투광기
CN102644858A (zh) Led节能灯泡
KR100778235B1 (ko) 무팬(無 ｆａｎ) 방열 엘이디 조명기구
TWM436134U (en) Light emitting device and lampshade thereof
KR101325080B1 (ko) 엘이디 촛대전구
KR200468298Y1 (ko) 후사광 및 반사광을 이용한 ｌｅｄ 조명등
CN210891100U (zh) 一种全周光的led灯泡
CN109323145B (zh) 模块化照明装置
CN103968271A (zh) Led照明装置
KR20130060564A (ko) 리플렉터를 포함한 ｌｅｄ 램프

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880101037.6

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08800532

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2011524159

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2008800532

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 20117007016

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2224/DELNP/2011

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 13060932

Country of ref document: US