CN210688094U

CN210688094U - Light distribution element and lamp

Info

Publication number: CN210688094U
Application number: CN201921913615.8U
Authority: CN
Inventors: 刘超博; 王洪波; 卫庆军
Original assignee: Opple Road Lighting Co ltd
Current assignee: Opple Road Lighting Co ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-06-05
Anticipated expiration: 2029-11-07

Abstract

The application discloses a light distribution element and a lamp. The lamp comprises a plurality of sub-segments which are combined with each other, wherein the plurality of sub-segments are part of a circle, and the plurality of sub-segments can be located on at least one virtual circle after being moved. The utility model discloses a grading component includes a plurality of sub-sections of intercombination, helps constructing the lamps and lanterns for the dysmorphism structure to the use of lamps and lanterns.

Description

Light distribution element and lamp

Technical Field

The application relates to the field of illumination, in particular to a light distribution element. The application also relates to a lamp comprising such a light distribution element.

Background

The light emitting diode lamp has the characteristics of energy conservation, high lighting effect, rich colors, long service life and the like, and is widely popular among consumers. In order to make the lighting effect of the led lamp meet the use requirement, a light distribution element needs to be installed on the led lamp.

SUMMERY OF THE UTILITY MODEL

The utility model provides a grading component and lamps and lanterns including this kind of grading component. The utility model discloses a grading component includes a plurality of intercombination's subsection, helps constructing the lamps and lanterns to special-shaped structure to lamps and lanterns use in special-shaped space.

The light distribution element according to the first aspect of the present invention includes a plurality of sub-segments combined with each other, and the plurality of sub-segments are a part of a circle, wherein the plurality of sub-segments can be located on at least one virtual circle by moving.

In one embodiment, the plurality of sub-segments are moved to form one or more virtual circles.

In one embodiment, the plurality of sub-segments are translationally spliced into at least one virtual circumference.

In one embodiment, the shape formed by the plurality of sub-segments combined with each other is a symmetrical shape.

In one embodiment, the central angles of the plurality of sub-segments are equal.

In one embodiment, in the plurality of sub-segments, a central angle of at least one sub-segment is not equal to central angles of the rest sub-segments.

In one embodiment, the number of the sub-segments is greater than or equal to 3, and the sub-segments with larger central angles are distributed on the periphery of the sub-segments with smaller central angles.

In one embodiment, the central angle is equal to or greater than 45 degrees.

In one embodiment, the plurality of sub-segments are equal in diameter.

In one embodiment, in a shape formed by combining the plurality of sub-segments with each other, a ratio of a distance between centers of two sub-segments farthest from each other to a diameter of the virtual circumference is 0.5:1 to 5: 1.

In one embodiment, among the plurality of sub-segments, at least one sub-segment has a diameter smaller than the diameters of the remaining sub-segments.

In one embodiment, the number of the sub-segments is greater than or equal to 3, and the sub-segments with larger diameters are distributed on the periphery of the sub-segments with smaller diameters.

In one embodiment, in a shape formed by combining the plurality of sub-segments with each other, a ratio of a distance between centers of two sub-segments farthest from each other to a diameter of a virtual circumference having a largest diameter is greater than or equal to 1:1 and less than or equal to 10: 1.

In one embodiment, at least one of the plurality of sub-segments comprises a light-blocking region and a light-transmitting region, the light-blocking region is close to the center of the circumference, and the light-transmitting region is located radially outside the light-blocking region.

In one embodiment, a refraction pattern is configured in the shading area to realize shading.

According to the utility model discloses lamps and lanterns of second aspect, including a plurality of luminous bodies and according to the above grading component, a plurality of luminous bodies correspond a plurality of subsections and arrange, lamps and lanterns still include the lamp plate, a plurality of luminous bodies are fixed on the lamp plate, the grading component with lamp plate fixed joint covers corresponding luminous body.

In one embodiment, the circumferential density of the luminous bodies along the circumferential extension direction of the sub-segments is 2-5/cm.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model discloses a grading component includes a plurality of intercombination's subsection, helps constructing the lamps and lanterns to special-shaped structure to lamps and lanterns use in special-shaped space. In addition, the lamp using the light distribution element also has good lighting effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 schematically shows the configuration of a light distribution element according to a first embodiment of the present invention.

Fig. 2 schematically shows a luminaire according to an embodiment of the invention.

Fig. 3a to 3g schematically show other various configurations of the light distribution element according to the present invention.

Fig. 4 schematically shows a light distribution element in the prior art.

Fig. 5 schematically shows another light distribution element in the prior art.

FIGS. 6a to 6j are light distribution graphs of examples 1 to 8 and comparative examples 1 to 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 schematically shows the shape of a light distribution element 1 according to a first embodiment of the present invention. As shown in fig. 1, the light distribution element 1 includes a plurality of sub-segments 100 combined with each other, and each of the sub-segments 100 is a part of a circumference. These subsections 100 can lie on at least one virtual circle 300 only by being moved. In one embodiment, the sub-segments 100 are moved to form one or more virtual circles 300. In another embodiment, the subsections 100 can be on at least one virtual circle 300 only translated, or only translated into one or more virtual circles 300. As described below.

In this application, the term "translating" refers to moving each point of the sub-segment 100 the same distance in the same direction. It should be understood that in the present application, the translation may be at least a left-right translation, an up-down translation, or a combination thereof. For example, the right subsection 100 is first translated downward into position and then leftward into position. In this embodiment, two sub-segments 100 are translated to form a virtual circle 300, and the angle of the virtual circle 300 is equal to 360 degrees. Tests have found that this helps to ensure the lighting effect of the lamp 6.

Fig. 2 schematically shows a luminaire 6 according to an embodiment of the invention. The luminaire 6 includes the plurality of luminous bodies 601 and the light distribution element 1 described above, and the plurality of luminous bodies 601 are arranged corresponding to the plurality of sub-segments 100. In a specific embodiment, the arrangement density of the light emitters 601 in the circumferential extension direction of the sub-segment 100 is 2-5 per 1cm, that is, the circumferential density of the light emitters 601 in the circumferential extension direction of the sub-segment 100 is 2-5/cm.

As shown in fig. 2, the lamp 6 further includes a lamp panel 602, a plurality of light emitters 601 are fixed on the lamp panel 602, and the light distribution element 1 is fixedly coupled to the lamp panel 602 and covers the corresponding light emitters 601. The lamp panel 602 may be used to power the luminaries 601.

It should be noted that, under the same illumination requirement, the lighting effect of the lamp 6 (as shown in fig. 2) using the light distribution element 1 shown in fig. 1 is the same as or almost the same as that of the lamp using the circular or ring-shaped light distribution element in the prior art, that is, has the same or almost the same optical characteristics. Therefore, on the premise of the same optical characteristics, the light distribution element 1 can be configured into a suitable configuration according to needs, so that the structure and the size of the light distribution element and the lamp can be flexibly designed. In particular, for a luminaire 6 that needs to be installed in a special-shaped space, such as an elongated space, a curved space, the light distribution element 1 of the present invention is very beneficial, since a plurality of sub-segments 100 can be combined into a light distribution element 1 of an elongated shape or a curved shape, so that the luminaire 6 can accommodate such a space.

In a preferred embodiment, the shape formed by combining the plurality of sub-segments 100 with each other is a symmetrical shape. In this way, the light distribution element 1 and the lamp 6 can also have a symmetrical shape, which contributes to a further lighting effect of the lamp 6. It should be understood that the symmetrical shapes described herein may be axisymmetric or rotationally symmetrical. For example, as shown in fig. 1, the light distribution element 1 has rotational symmetry with a center of symmetry I. It should be understood that the rotational symmetry described herein does not require that the sub-segments 100 be rotated to fit on the virtual circle 300, but rather that the sub-segments 300 fit on the virtual circle 300 only after translation.

In other embodiments, a plurality of sub-segments 100 may also be combined with one another to form an asymmetric shape. In this case, the lighting effect of the lamp 6 can be adjusted and/or ensured by providing different illuminants for different subsections 100. Of course, the lighting effect of the lamp 6 may not be adjusted according to the requirement.

In the exemplary embodiment shown in fig. 1, the light distribution element 1 is composed of two individual semicircular sub-segments 100 (i.e. with a central angle of 180 degrees), which are arranged at a horizontal spacing and which, after only translation, form a virtual circle 300. The distance D1 between the centers of the two sub-segments 100 is greater than the sum of the radii of the two sub-segments 100. Thus, the lamp 6 using such a light distribution element 1 can have a long and narrow shape.

In one embodiment, the central angles of the plurality of sub-segments 100 are equal. In this way, it is possible to easily configure the subsections 100 as symmetrically shaped light distribution elements 1, which helps to ensure the lighting effect of the luminaire 6. Preferably, the central angle is equal to or greater than 45 degrees. For example, the central angle may be 45 degrees, 60 degrees, 75 degrees, 90 degrees, 120 degrees, 145 degrees, 160 degrees, 180 degrees, etc. In this way, the subsegments 100 have a suitable circumferential length, which facilitates arranging the luminaires corresponding to the subsegments 100.

In one embodiment, the plurality of subsections 100 are equal in diameter. In other words, the plurality of sub-segments 100 may lie on the same virtual circumference only after translation, or may be spliced into one or more complete circumferences when the number of sub-segments 100 is sufficient. This further contributes to the formation of a symmetrical shape of the plurality of sub-segments 100. In a preferred embodiment, in a shape formed by combining a plurality of sub-segments 100 with each other, a ratio of a center-to-center distance D1 between two sub-segments 100 farthest from each other to a diameter of the virtual circumference 300 is greater than or equal to 1:1 and less than or equal to 5: 1. Compared with the existing lamp with the complete and/or partial circular light distribution element (for example, the light distribution element of the lamp is formed by splicing the sub-segments 100 after only translating), the lamp 6 using the light distribution element 1 with the structure of the present invention has a larger length-width ratio, and the lighting effect is the same as or almost the same as that of the existing lamp, so that the lamp 6 having the light distribution element 1 with the structure of the present invention can be completely used when facing a narrow installation space, which greatly facilitates the use.

In further embodiments, the central angle of at least one sub-section 100 is not equal to the central angle of the remaining sub-sections 100. For example, the center angle of the partial sub-segments 100 is 45 degrees, the partial sub-segments are 90 degrees, and the partial sub-segments are 180 degrees. In other words, the circumferential length dimensions of the subsections 100 are more varied, so that a greater variety of combinations is possible, and therefore a greater variety of shapes of the light distribution element 1 and the corresponding lamp 6 is possible, which further facilitates the installation and use of the lamp 6. In this case, it is preferable that the number of the sub-segments 100 is equal to or greater than 3, and the sub-segments with larger central angles are distributed on the periphery of the sub-segments with smaller central angles. It has been unexpectedly found that, with this configuration, in the lamp 6, the sub-segment having a larger central angle and the sub-segment having a smaller central angle compensate each other in terms of guiding light, so that the lighting effect of the lamp 6 can be ensured.

In another embodiment, among the plurality of sub-segments, at least one sub-segment has a diameter smaller than the diameter of the remaining sub-segments. For example, the diameter of a partial sub-section is 50mm, the diameter of a partial sub-section is 80mm, and the diameter of a partial sub-section is 30 mm. In the case of different central angles, the diameters of the subsections are selected to be different, so that the circumferential length of the subsections can be more varied, and thus more combinations are possible, and the shapes of the light distribution element 1 and the corresponding lamp 6 can be more varied, which further facilitates the installation and use of the lamp 6.

In one embodiment, in the luminaire 6, a larger number of luminaires 601 may be arranged corresponding to the sub-segments with larger diameter and a larger number of luminaires 601 may be arranged corresponding to the sub-segments with smaller diameter. In this case, preferably, the number of the plurality of sub-segments is equal to or greater than 3, and the sub-segments with larger diameters are distributed on the periphery of the sub-segments with smaller diameters. In this way, in the lamp 6, the sub-section with the larger diameter and the sub-section with the smaller diameter compensate each other in terms of light emission, so that the lighting effect of the lamp 6 can be ensured. For example, when the sub-segments with smaller diameters are arranged between the sub-segments with larger diameters, the sub-segments with larger diameters are arranged with larger intervals, so that the sub-segments with smaller diameters can compensate the dark areas between the sub-segments with larger diameters, and the lighting effect of the lamp 6 can be ensured. From this, can be with using the utility model discloses a lamps and lanterns 6 of light distribution element 1 of this kind of structure are constructed to have bigger length-width ratio, and the illuminating effect is the same with corresponding current lamps and lanterns or almost the same moreover, consequently when facing constrictive installation space, can use completely the lamps and lanterns 6 that have the light distribution element 1 of this kind of structure, this has made things convenient for the use greatly.

In the case where the sub-segments are not completely the same in diameter, in a shape in which a plurality of sub-segments are combined with each other, a ratio of a distance between centers of two sub-segments farthest from each other to a diameter of a virtual circumference having the largest diameter is 1:1 or more and 10:1 or less. For example, the ratio may be 1:1, 5:1, 8:1, or 10: 1. By means of the structure, the lamp still has a good lighting effect.

In one embodiment, at least one of the plurality of sub-segments 100 comprises a light-blocking region 301 and a light-transmitting region 302, the light-blocking region 301 is close to the center O of the circumference, and the light-transmitting region 302 is located radially outside the light-blocking region 301. In the lamp 6, the light shielding region 301 can be used to shield the interior of the lamp 6, especially components and wires arranged on the light source board, so as to improve the aesthetic property of the lamp 6. In a specific embodiment, a refraction pattern is configured in the light-shielding region 301 to achieve light shielding.

Examples

The sub-segment form of the light distribution element and the combination thereof are explained below by way of specific examples. In addition, optical parameters of the lamp using these light distribution elements were also tested, see table 1.

Example 1: as shown in fig. 1, the light distribution element 1 is formed by two independent sub-segments 100 combined without contact with each other, and has a rotational symmetry center I. The central angles of the sub-segments 100 are all 180 degrees, and the circumferential density of the illuminants of the sub-segments 100 is 3/cm. Two subsections 100 are merely translated to form a virtual circle 300. The centre distance D1 between two subsegments 100 is 60mm and the diameter of the virtual circle 300 is 50 mm. The light distribution curve is shown in fig. 6 a.

Example 2: as shown in fig. 3a, the light distribution element is composed of two independent sub-segments 100 combined in contact and formed in a shape of a general letter "S" with a rotational symmetry center Ia. The central angles of the sub-segments 100 are all 180 degrees, and the circumferential density of the illuminants 601 of the sub-segments 100 is 3/cm. Two subsections 100 are merely translated to form a virtual circle 300. The centre distance D1 between two subsegments 100 is 40mm and the diameter of the virtual circle 300 is 50 mm. The light distribution curve is shown in fig. 6 b.

Example 3: as shown in fig. 3b, the light distribution element is formed by two independent sub-segments 100 combined in contact, and the rotational symmetry center is Ib. The central angles of the sub-segments 100 are all 180 degrees, and the circumferential density of the illuminants of the sub-segments 100 is 3/cm. Two subsections 100 are merely translated to form a virtual circle 300. The centre distance D1 between two subsegments 100 is 30mm and the diameter of the virtual circle 300 is 50 mm. The light distribution curve is shown in fig. 6 c.

Example 4: as shown in fig. 3c, the light distribution element is composed of two independent sub-segments 100 combined in contact, the symmetry axis includes l1 and l2, and the symmetry center is Ic. The central angles of the sub-segments 100 are all 180 degrees, and the circumferential density of the illuminants of the sub-segments 100 is 3/cm. Two subsections 100 are merely translated to form a virtual circle 300. The centre distance D1 between two subsegments 100 is 50mm and the diameter of the virtual circle 300 is 50 mm. The light distribution curve is shown in fig. 6 d.

Example 5: as shown in fig. 3d, the light distribution element is composed of four independent sub-segments 100 combined in contact, and the symmetry axis is l 8. The central angles of the four subsections 100 are all 90 degrees, and the circumferential density of the luminophors of the subsections 100 is 3/cm. These subsections 100 are merely translated to form a virtual circle 300. The distance D1 between the two most distant subsegments 100 is 50mm and the diameter of the imaginary circle 300 is 50 mm. The light distribution curve is shown in fig. 6 e.

Example 6: as shown in fig. 3e, the light distribution element is composed of four separate sub-segments combined in contact, and the axis of symmetry is l 5. The central angles of the sub-segments 100a and 100b are both 270 degrees, and the circumferential density of the illuminants of the sub-segments 100a and 100b is 4/cm; the central angles of the sub-segments 100c and 100d are both 90 degrees, and the circumferential density of the illuminants of the sub-segments 100c and 100d is 4/cm. The sub-segments 100a, 100b, and the sub-segments 100a and 100b may constitute

virtual circles

300a and 300b only by translation. The centre distance D1 between the two sub-segments 100a and 100b is 80mm and the diameter of the imaginary circle 300a (or 300b) is 50 mm. The light distribution curve is shown in fig. 6 f.

Example 7: as shown in fig. 3f, the light distribution element is composed of six individual sub-segments 100 combined in contact, and the axis of symmetry is l 6. The central angles of the

subsections

100a and 100b are both 180 degrees, and the circumferential density of the luminophors is 4/cm; the

subsections

100c, 100d, 100e and 100f all have a central angle of 90 degrees and a circumferential density of 4 emitters/cm. All sub-segments 100a-100f may constitute

virtual circles

300a and 300b merely translated. The centre distance D1 between the two

subsections

100c and 100e is 140mm and the diameter of the imaginary circle 300a (or 300b) is 50 mm. The light distribution curve is shown in fig. 6 g.

Example 8: as shown in fig. 3g, the light distribution element is composed of four independent sub-segments 100 combined in contact, and the rotational symmetry center is If. The central angles of the four subsections 100 are all 180 degrees, and the circumferential density of the luminophors of the subsections 100 is 4/cm. These subsections 100 are merely translated to form

virtual circumferences

300a and 300 b. The centre-to-centre distance D1 between the two most distant subsections 100 is 70mm and the diameter of the imaginary circle 300a (or 300b) is 50 mm. The light distribution curve is shown in fig. 6 h.

Comparative example 1: as shown in fig. 4, the light distribution element is a ring having a diameter of 50mm, and the circumferential density of the light emitters is 3/cm. The light distribution curve is shown in fig. 6 i.

Example 2: as shown in fig. 5, the light distribution element is a combination of two independent circular rings, each circular ring has a diameter of 50mm, and the circumferential density of the light emitters is 4/cm. The light distribution curve is shown in fig. 6 j.

TABLE 1

	Beam angle/°	Central light intensity/cd	Spot diameter/mm
				Example 1	57.5	2496	410
Example 2	57.9	2495	410
				Example 3	58.6	2467	410
Example 4	56.7	2546	390
				Example 5	57.4	2529	400
Example 6	58.6	4931	420
				Example 7	58.8	4921	420
Example 8	58.7	4930	420
				Comparative example 1	57.8	2487	410
Comparative example 2	58.7	4931	420

In examples 1-5, a plurality of sub-segments are translated to form a virtual circle. The light distribution element of comparative example 1 is a circular ring. The diameter of the virtual circumference and the circumferential density of the luminous bodies were the same as those of the light distribution element of comparative example 1. As can be seen from table 1, the beam angle, the central light intensity, and the spot diameter of examples 1 to 5 are almost the same as those of the comparative example, which shows that the lamp obtained according to the technical solution of the present application can achieve a good lighting effect.

In examples 6-8, a plurality of subsegments were translated into two virtual circles. The light distribution element of comparative example 2 is two independent circular rings. The diameter of the virtual circumference and the circumferential density of the luminous bodies were the same as those of the circular ring of the light distribution element of comparative example 2. As can be seen from table 1, the beam angle, the central light intensity, and the spot diameter of examples 6 to 8 are almost the same as those of the comparative example, which shows that the lamp obtained according to the technical solution of the present application can achieve a good lighting effect.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A light distribution element is characterized by comprising a plurality of sub-segments which are mutually combined, wherein the plurality of sub-segments are all part of a circumference,

wherein the plurality of sub-segments are movable to lie on at least one virtual circumference.

2. A light distribution element as claimed in claim 1, wherein the plurality of sub-segments are moved to form one or more virtual circles.

3. A light distribution element as claimed in claim 1 or 2, wherein the plurality of sub-segments are translationally spliced into at least one virtual circumference.

4. A light distribution element according to claim 3, wherein the plurality of sub-segments are combined with each other to form a symmetrical shape.

5. A light distribution element as claimed in claim 3, wherein the central angles of the plurality of sub-segments are equal.

6. The light distribution element according to claim 3, wherein a central angle of at least one of the plurality of sub-segments is not equal to central angles of the remaining sub-segments.

7. The light distribution element according to claim 6, wherein the number of the plurality of sub-segments is equal to or greater than 3, and the sub-segment having a larger central angle is distributed around the periphery of the sub-segment having a smaller central angle.

8. A light distribution element as claimed in any one of claims 5 to 7, wherein the central angle is 45 degrees or greater.

9. A light distribution element as claimed in claim 3, wherein the plurality of sub-segments are of equal diameter.

10. A light distribution element according to claim 9, wherein in a shape in which the plurality of sub-segments are combined with each other, a ratio of a center-to-center distance between two sub-segments farthest from each other to a diameter of the virtual circumference is 0.5:1 to 5: 1.

11. A light distribution element as claimed in claim 3, wherein at least one of the plurality of sub-segments has a diameter smaller than the diameter of the remaining sub-segments.

12. A light distribution element according to claim 11, wherein the number of the plurality of sub-segments is 3 or more, and the sub-segment having a larger diameter is distributed around the sub-segment having a smaller diameter.

13. A light distribution element according to claim 12, wherein in a shape in which the plurality of sub-segments are combined with each other, a ratio of a center-to-center distance between two sub-segments farthest from each other to a diameter of a virtual circumference having a largest diameter is 1:1 or more and 10:1 or less.

14. A light distribution element as claimed in claim 3, wherein at least one of the plurality of sub-segments includes a light blocking region near a center of the circumference and a light transmitting region radially outward of the light blocking region.

15. A light distribution element as claimed in claim 14, wherein a refraction pattern is configured in the light shielding region to achieve light shielding.

16. A luminaire comprising a plurality of luminous bodies arranged in correspondence with the plurality of sub-segments and a light distribution element according to any one of claims 1 to 15,

the lamp further comprises a lamp panel, the plurality of luminous bodies are fixed on the lamp panel, and the light distribution elements are fixedly connected with the lamp panel and cover the corresponding luminous bodies.

17. A lamp as recited in claim 16, wherein the circumferential density of the emitters along the circumferential extent of the sub-segments is between 2 and 5/cm.