Lamp with light sources with different divergence angles and lamp system
By using light sources with different divergence angles in the lighting fixtures, the problems of a large number of lighting fixtures and uneven brightness in large-area stage or wall lighting are solved, achieving the effects of cost reduction and uniform brightness.
Patent Information
- Application Number
- CN202511795059.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-30
- Publication Date
- 2026-01-20
AI Technical Summary
In existing technologies, in order to illuminate a large area of a stage or wall evenly, a large number of light fixtures need to be spliced together, resulting in high costs and gaps that cause uneven brightness.
Design a luminaire that uses light sources with different divergence angles. By placing a first light source with a small divergence angle in the middle area of the lamp head and a second light source with a large divergence angle in the outer area, a certain gap is allowed between the luminaires, but adjacent beams are seamlessly superimposed on the projection surface, thus reducing the number of luminaires used.
It achieves uniform brightness across the stage or wall, reduces the number of lights required, lowers operating costs, and avoids gaps that result in uneven brightness.
Smart Images
Figure CN121363731A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of lamps, more particularly, to a lamp with light sources of different divergence angles and a lamp system. BACKGROUND
[0002] In order to illuminate a large area of a stage or a wall, long strip-shaped lamps are usually used for lighting. In order to make the stage or the wall have a uniform overall brightness and no low-brightness gaps, the long strip-shaped lamps are usually spliced together one by one. This results in a large number of lamps and high use cost. SUMMARY
[0003] The present application provides a lamp with light sources of different divergence angles to overcome at least one of the above-mentioned defects of the prior art. The lamp allows a certain gap between the lamps, while the stage or the wall still has a uniform overall brightness and no low-brightness gaps.
[0004] To solve the above technical problems, the present application adopts the technical scheme of a lamp with light sources of different divergence angles, comprising a plurality of first light sources, a plurality of second light sources, and a first light collecting element for collecting light of each first light source and a second light collecting element for collecting light of each second light source, each first light source forms a first light beam after passing through the first light collecting element, each second light source forms a second light beam after passing through the second light collecting element, the second divergence angle of the second light beam is greater than the first divergence angle of the first light beam, the first light source is located in the middle region of the lamp head, the second light source is located in the outer region of the lamp head, and the lamp further comprises a case, the case is provided with an arm for supporting the rotation of the lamp head.
[0005] The lamp with light sources of different divergence angles arranges the first light source of the first light beam with a small divergence angle formed by the first light collecting element in the middle region of the lamp head, and arranges the second light source of the second light beam with a large divergence angle formed by the second light collecting element in the outer region of the lamp head. When the lamps are spliced, they can not be spliced as closely as possible, but have a certain gap. However, there will be no gap between the light spots of the two closest second light beams on the projection surface in the two adjacent lamps, thereby reducing the amount of lamps and the cost.
[0006] Further, the first light sources are arranged in a straight line, the second light sources are located at both ends of the straight line, and are also arranged in a straight line along the straight line where the first light sources are located. That is, the lamp head is in the shape of a long strip, and the first light sources and the second light sources are arranged along the length direction of the long strip, which is suitable for illuminating a long strip-shaped area.
[0007] Further, the number of first light sources in the same straight line is greater than or equal to the number of second light sources.
[0008] Further, the number of the first light sources is 4, and 2 of the second light sources are arranged at two ends of the first light sources. The length of the whole lamp head is controlled to avoid too short single lamp head which needs too many lamps to be connected in use, and too long single lamp head which is not flexible in installation.
[0009] Further, the first light sources are arranged in an array, and the second light sources are arranged around the first light sources. That is, the lamp head is in a disc shape, such as a circular shape or a polygonal shape, for example, a quadrilateral, a hexagon, an octagon, etc., which is suitable for illuminating a block area.
[0010] Further, the first light sources are arranged at equal intervals, and / or the second light sources on the same side of the first light sources are arranged at equal intervals. Thus, the illumination of the stage or the wall by the first light sources and / or the second light sources can be uniform.
[0011] Further, the first light sources are arranged at equal intervals, and / or the second light sources on the same side of the first light sources are arranged at equal intervals. Thus, the illumination of the stage or the wall by the first light sources and / or the second light sources can be uniform.
[0012] Further, the interval between the adjacent second light sources and the first light sources is greater than the interval between the first light sources. Since the second divergence angle of the second light beam is greater than the first divergence angle of the first light beam, the interval between the adjacent second light sources and the first light sources is greater than the interval between the first light sources, which can make the light spot of the second light beam and the first light beam on the projection plane less overlapped, so that the adjacent area of the area illuminated by the first light sources and the area illuminated by the second light sources is not too bright.
[0013] Further, the first divergence angle of the first light beam is less than or equal to 15°. This can make the light spot of the first light beam on the projection plane less overlapped and concentrate light, thereby ensuring the illumination of the first light beam on the projection plane.
[0014] Further, the second divergence angle of the second light beam is greater than or equal to 20°. The second light source is located in the outer area of the lamp head, and the second light beam is diffused outward as much as possible, which can increase the area illuminated by the lamp head.
[0015] Further, the total light flux of the second light beam is greater than the total light flux of the first light beam. Since the second divergence angle of the second light beam is greater than the first divergence angle of the first light beam, the total light flux of the second light beam is increased, so that the illumination of the second light beam on the projection surface can be close to the illumination of the first light beam on the projection surface.
[0016] Further, the spot brightness of the first light beam on the projection surface is consistent with the spot brightness of the second light beam on the projection surface. In this way, the illumination of the lamp as a whole on the projection surface will be very uniform.
[0017] Further, the third light source is further included between the first light source and the second light source, and a third light collecting element is further included for collecting light from each of the third light sources. Each of the third light sources forms a third light beam after passing through the third light collecting element. The third divergence angle of the third light beam is greater than the first divergence angle of the first light beam and less than the second divergence angle of the second light beam. The third light source plays a transitional role between the first light source and the second light source, so that the divergence angle of the light beam gradually changes and looks more natural.
[0018] Further, a focusing driving motor is further included for driving the first light collecting element and / or the second light collecting element to move in the light emitting direction. By moving the distance of the first light collecting element relative to the first light source and / or the distance of the second light collecting element relative to the second light source, the first divergence angle of the first light beam and / or the second divergence angle of the second light beam can be changed.
[0019] The application further provides a lamp system, which includes at least two lamps as described above. The lamp heads of the lamps are arranged at intervals, and the interval is greater than 2 cm. The interval between the lamps is widened, so that the lamps are arranged not too compactly.
[0020] Further, the spots of the two second light beams closest to each other on the projection surface of the two adjacent lamps are seamlessly adjacent. In this way, after the lamps are spliced, there will be no obvious dark area at the splicing position.
[0021] Further, the first light sources are arranged at equal intervals, and the second light sources are arranged at equal intervals. The distance between the two second light sources closest to each other in the two adjacent lamps is equal to the interval between the second light sources. In this way, all the second light sources closest to each other in the two adjacent lamps will be arranged at equal intervals, and the direct visual sense will be better. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 is a schematic diagram of the overall structure of a lamp with light sources having different divergence angles according to the first embodiment of the application.
[0023] Figure 2is a light emitting angle diagram of a first embodiment of the present application.
[0024] Figure 3 is a whole structure diagram of a second embodiment of the present application.
[0025] Figure 4 is a structure diagram of a lamp system of the present application.
[0026] Figure 5 is a whole structure diagram of a third embodiment of the present application.
[0027] In the figure: 100, first light source; 110, first light receiving element; 120, first light beam; a, first divergence angle; 200, second light source; 210, second light receiving element; 220, second light beam; b, second divergence angle; 300, third light source; 310, third light receiving element; 320, third light beam; g, third divergence angle; 410, lamp head; 420, arm; 430, case. DETAILED DESCRIPTION
[0028] The drawings are only used for illustrative description and cannot be understood as a limitation of the present application; in order to better illustrate the embodiments, some components in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationship described in the drawings is only used for illustrative description and cannot be understood as a limitation of the present application.
[0029] As Figures 1 to 2 , the present application provides a lamp with light sources of different divergence angles, comprising a plurality of first light sources 100, a plurality of second light sources 200 in the lamp head 410, and a first light receiving element 110 for receiving light from each of the first light sources 100, a second light receiving element 210 for receiving light from each of the second light sources 200, each of the first light sources 100 forms a first light beam 120 after passing through the first light receiving element 110, each of the second light sources 200 forms a second light beam 220 after passing through the second light receiving element 210, the second divergence angle b of the second light beam 220 is greater than the first divergence angle a of the first light beam 120, the first light source 100 is located in the middle region of the lamp head 410, the second light source 200 is located in the outer region of the lamp head 410, and further comprising a case 430, the case 430 is provided with an arm 420 for supporting the rotation of the lamp head 410.
[0030] The lamp with different divergence angle light sources, by arranging the first light source 100 forming the first light beam 120 with a small divergence angle through the first light collecting element 110 in the middle area of the lamp head 410, and arranging the second light source 200 forming the second light beam 220 with a large divergence angle through the second light collecting element 210 in the outer area of the lamp head 410, so that when the lamps are spliced, the lamps can not be spliced as close as possible, but have a certain gap, but the light spots of the two closest second light beams 220 in the adjacent two lamps on the projection surface will not have a gap, thereby reducing the use amount of the lamps and the cost.
[0031] When the general lamp is designed, the best projection distance is determined, and the projection surface in the application refers to a plane at a distance of the best projection distance of the lamp.
[0032] The first light collecting element 110 and the first light collecting element 110 can be a refractive lens, a TIR total internal reflection lens, a reflector cup, a light guide body, a liquid lens, or a liquid crystal lens.
[0033] The first divergence angle α of the first light beam 120 is the result of cooperation of the first light source 100 and the first light collecting element 110, and the second divergence angle β of the second light beam 220 is the result of cooperation of the second light source 200 and the second light collecting element 210. The difference between the first divergence angle α of the first light beam 120 and the second divergence angle β of the second light beam 220 can be caused by different light emitting angles of the first light source 100 and the second light source 200, or caused by different light collecting abilities of the first light collecting element 110 and the second light collecting element 210, or caused by different distances between the first light collecting element 110 and the second light collecting element 210 and the first light source 100 and the second light source 200 (at this time, even if the first light source 100, the second light source 200, the first light collecting element 110, and the second light collecting element 210 are the same, the first divergence angle α of the first light beam 120 and the second divergence angle β of the second light beam 220 can also be different).
[0034] Optionally, a rotating driving motor for driving the lamp head 410 to rotate relative to the arm 420 is further included, so as to realize automatic control and remote control of the rotation angle of the lamp head 410.
[0035] In the preferred embodiment of the application, the first light source 100 is arranged in a straight line, the second light source 200 is located at both ends thereof, and is also arranged in a straight line along the first light source 100. That is, the lamp head 410 is in a long strip shape, the first light source 100 and the second light source 200 are arranged along the length direction thereof, and is suitable for illuminating a long strip area.
[0036] The first light source 100 can be arranged in a row along a straight line, or arranged in multiple rows along multiple parallel straight lines, and the second light source 200 can be arranged outside each row of the first light source 100, or multiple rows of the second light source 200 can be arranged outside a row of the second light source 200.
[0037] In the preferred embodiment of the present application, the number of the first light source 100 arranged in a straight line is greater than or equal to the number of the second light source 200.
[0038] For example, the number of the first light source 100 arranged in a straight line is 3, 4, 5 or 6, and the number of the second light source 200 is 1 or 2. The number of the second light source 200 arranged outside should not be too much, as long as the light spots of the two closest second light beams 220 in the adjacent two lamps can be seamlessly adjacent when multiple lamp holders 410 are spliced, even if the lamp holders 410 are not closely spliced.
[0039] In the preferred embodiment of the present application, the number of the first light source 100 is 4, and 2 second light sources 200 are arranged at both ends. The length of the lamp holder 410 is controlled to avoid too short single lamp holder 410, which requires too many lamps to be spliced during use, and to avoid too long single lamp holder 410, which is not flexible enough in site adaptation during installation.
[0040] For example, the number of the first light source 100 arranged in a straight line is 3, 4, 5 or 6, and the number of the second light source 200 is 1 or 2. The number of the second light source 200 arranged outside should not be too much, as long as the light spots of the two closest second light beams 220 in the adjacent two lamps can be seamlessly adjacent when multiple lamp holders 410 are spliced, even if the lamp holders 410 are not closely spliced. Figure 3 In the preferred embodiment of the present application, the first light source 100 is arranged in an array, and the second light source 200 is arranged around the first light source 100. That is, the lamp holder 410 is in the shape of a disc, such as a circle or a polygon, which is suitable for illuminating a block-shaped area.
[0041] The array of the first light source 100 can be similar to the row and column distribution of pixels, or other forms of uniform distribution, and the overall outline of the first light source 100 can be circular, rectangular or polygonal.
[0042] Preferably, the lamp holder 410 further comprises an arm 420 supporting the rotation of the lamp holder 410, a case 430 supporting the rotation of the arm 420, and a rotation driving motor driving the rotation of the lamp holder 410 or the arm 420.
[0043] For example, the number of the first light source 100 arranged in a straight line is 3, 4, 5 or 6, and the number of the second light source 200 is 1 or 2. The number of the second light source 200 arranged outside should not be too much, as long as the light spots of the two closest second light beams 220 in the adjacent two lamps can be seamlessly adjacent when multiple lamp holders 410 are spliced, even if the lamp holders 410 are not closely spliced. Figures 1 to 3In the preferred embodiment of the present application, the first light sources 100 are arranged at equal intervals from each other and / or the second light sources 200 on the same side of the first light sources 100 are arranged at equal intervals from each other. Thus, the illumination of the stage or the wall by the first light sources 100 and / or the second light sources 200 can be kept uniform. Even if the straight lamp head 410 is viewed, the first light sources 100 and / or the second light sources 200 arranged regularly will not appear to be in disorder.
[0044] Equal intervals refer to that when the number of the first light sources 100 and / or the number of the second light sources 200 on the same side of the first light sources 100 is greater than 3, the interval between any two adjacent first light sources 100 is equal and / or the interval between any two adjacent second light sources 200 is equal.
[0045] In addition, when the first light sources 100 and the second light sources 200 are arranged in a straight line, if the number of the second light sources 200 on both sides of the first light sources 100 is only 2, the interval d2 between the two second light sources 200 on the same side is equal to the interval d2 between the two second light sources 200 on the other side.
[0046] In the preferred embodiment of the present application, the first light sources 100 are arranged at equal intervals from each other and / or the second light sources 200 on the same side of the first light sources 100 are arranged at equal intervals from each other, and the interval d2 between the second light sources 200 is greater than the interval d1 between the first light sources 100. Since the second divergence angle β of the second light beam 220 is greater than the first divergence angle α of the first light beam 120, the interval d2 between the second light sources 200 is greater than the interval d1 between the first light sources 100, which can make the spot of the second light beam 220 on the projection plane overlap less, so that the area illuminated by the second light sources 200 is more uniform in brightness.
[0047] In the preferred embodiment of the present application, the interval d3 between the adjacent second light sources 200 and the first light sources 100 is greater than the interval d1 between the first light sources 100. Since the second divergence angle β of the second light beam 220 is greater than the first divergence angle α of the first light beam 120, the interval d3 between the adjacent second light sources 200 and the first light sources 100 is set to be greater than the interval d1 between the first light sources 100, which can make the spot of the second light beam 220 and the first light beam 120 on the projection plane overlap less, so that the area illuminated by the first light sources 100 and the area illuminated by the second light sources 200 will not be too bright at the junction.
[0048] In the preferred embodiment of the present application, the first divergence angle a of the first light beam 120 is less than or equal to 15°. This makes the first light beam 120 less overlapped and more concentrated on the projection surface, thereby ensuring the illumination of the first light beam 120 on the projection surface.
[0049] Preferably, the first divergence angle a is 13°, 10° or 8°.
[0050] In the preferred embodiment of the present application, the second divergence angle β of the second light beam 220 is greater than or equal to 20°. The second light source 200 is located at the outer region of the lamp head 410, and the second light beam 220 is diffused outward as much as possible, thereby increasing the area illuminated by the lamp head 410.
[0051] Preferably, the second divergence angle β is 22°, 25° or 28°.
[0052] In the preferred embodiment of the present application, the total luminous flux of the second light beam 220 is greater than that of the first light beam 120. Since the second divergence angle β of the second light beam 220 is greater than the first divergence angle a of the first light beam 120, the total luminous flux of the second light beam 220 is increased, thereby making the illumination of the second light beam 220 on the projection surface close to that of the first light beam 120.
[0053] Preferably, the total luminous flux of the second light beam 220 is 1.5 times that of the first light beam 120.
[0054] In the preferred embodiment of the present application, the spot brightness of the first light beam 120 on the projection surface is consistent with that of the second light beam 220 on the projection surface. In this way, the illumination of the lamp on the projection surface will be very uniform.
[0055] As Figure 5 In the preferred embodiment of the present application, a third light source 300 is further arranged between the first light source 100 and the second light source 200, and a third light collecting element 310 is arranged to collect light from each third light source 300. Each third light source 300 forms a third light beam 320 after passing through the third light collecting element 310. The third divergence angle γ of the third light beam 320 is greater than the first divergence angle a of the first light beam 120 and less than the second divergence angle β of the second light beam 220. The third light source 300 plays a transitional role between the first light source 100 and the second light source 200, thereby gradually changing the divergence angle of the light beam and making it look more natural.
[0056] Optionally, the third divergence angle γ, the second divergence angle β and the first divergence angle a form an arithmetic progression.
[0057] In the preferred embodiment of the present application, a focusing driving motor is further included to drive the first light receiving element 110 and / or the second light receiving element 210 to move along the light emitting direction. By moving the distance between the first light receiving element 110 and the first light source 100 and / or the distance between the second light receiving element 210 and the second light source 200, the first divergence angle a of the first light beam 120 and / or the second divergence angle β of the second light beam 220 can be changed.
[0058] Preferably, the first light receiving element 110 and the second light receiving element 210 are synchronously moved together or the first light receiving element 110 is synchronously moved and the second light receiving element 210 is synchronously moved separately.
[0059] Optionally, when the first light receiving element 110 and the second light receiving element 210 are synchronously moved together, the first light receiving element 110 and the second light receiving element 210 are located on the same straight line.
[0060] As Figure 4 In the preferred embodiment of the present application, a lamp system is further provided, which comprises at least two lamps as described above. The lamp heads 410 of the lamps are arranged at intervals with a distance greater than 2 cm. The distance between the lamps is thus increased so that the lamps are not arranged too compactly.
[0061] Preferably, the distance between the lamp heads 410 of the lamps is greater than 4 cm, 6 cm, 8 cm or 10 cm so as to further increase the distance between the lamps and reduce the amount of lamps.
[0062] When the lamp further comprises an arm 420 supporting the rotation of the lamp head 410, the arms 420 can be in contact with each other or spaced apart from each other, but the lamp heads 410 will not be in contact with each other even if they are closely connected, i.e. will not affect the rotation of each other. In the present embodiment, the distance between the lamp heads 410 is required to be greater than 2 cm.
[0063] In the preferred embodiment of the present application, the two second light beams 220 closest to each other in the two adjacent lamps are seamlessly connected on the light spot of the projection surface. In this way, when the lamps are connected, there will be no obvious dark area at the connection position.
[0064] In the preferred embodiment of the present application, the first light sources 100 are arranged at equal intervals and the second light sources 200 are arranged at equal intervals. The distance d4 between the two second light sources 200 closest to each other in the two adjacent lamps is equal to the interval d2 between the second light sources 200. In this way, all the second light sources 200 closest to each other in the two adjacent lamps will be arranged at equal intervals, and the direct visual sense will be better.
[0065] Obviously, the above embodiments of the present application are merely exemplary but not intended to limit the embodiments of the present application. Based on the above description, any other variations or changes of the embodiments can be made by those skilled in the art. Here, it is not necessary or possible to enumerate all the embodiments. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims
1. A luminaire having light sources of different divergence angles, characterized in that, The application relates to a lamp head (410) comprising a plurality of first light sources (100), a plurality of second light sources (200), and a first light receiving element (110) for receiving light of each of the first light sources (100) and a second light receiving element (210) for receiving light of each of the second light sources (200), each of the first light sources (100) forms a first light beam (120) after passing through the first light receiving element (110), each of the second light sources (200) forms a second light beam (220) after passing through the second light receiving element (210), a second divergence angle (beta) of the second light beam (220) is greater than a first divergence angle (alpha) of the first light beam (120), the first light sources (100) are located in a middle region of the lamp head (410), the second light sources (200) are located in an outer region of the lamp head (410), and the lamp head (410) further comprises a cabinet (430) provided with an arm (420) for supporting rotation of the lamp head (410).
2. The luminaire with different divergence angle light sources of claim 1, wherein, The first light sources (100) are arranged in a straight line, and the second light sources (200) are arranged at both ends of the straight line.
3. The luminaire with different divergence angle light sources of claim 2, wherein, The number of the first light sources (100) arranged in the straight line is greater than or equal to the number of the second light sources (200).
4. The luminaire of claim 3 having light sources of different divergence angles, characterized in that, The number of the first light sources (100) is four, and two second light sources (200) are arranged at both ends of the first light sources (100).
5. The luminaire of claim 1 having different divergence angle light sources, wherein, The first light sources (100) are arranged in an array, and the second light sources (200) are arranged around the first light sources (100).
6. A luminaire with light sources of different divergence angles according to claim 2 or 5, characterized in that, The first light sources (100) are arranged at equal intervals, and / or the second light sources (200) arranged on the same side of the first light sources (100) are arranged at equal intervals.
7. The luminaire of claim 6 having light sources of different divergence angles, characterized in that, The first light sources (100) are arranged at equal intervals, and / or the second light sources (200) arranged on the same side of the first light sources (100) are arranged at equal intervals.
8. The luminaire of light sources with different divergence angles according to claim 2 or 5, characterized in that, The first light sources (100) are arranged at equal intervals, and / or the second light sources (200) arranged on the same side of the first light sources (100) are arranged at equal intervals.
9. The luminaire of claim 1 having different divergence angle light sources, wherein, The interval between adjacent second light sources (200) and the first light sources (100) is greater than the interval between the first light sources (100).
10. The luminaire of claim 1 having different divergence angle light sources, wherein, The first divergence angle (alpha) of the first light beam (120) is less than or equal to 15 degrees.
11. The luminaire of claim 1 having different divergence angle light sources, wherein, The second divergence angle (beta) of the second light beam (220) is greater than or equal to 20 degrees.
12. The luminaire of claim 1 having different divergence angle light sources, wherein, The total luminous flux of the second light beam (220) is greater than the total luminous flux of the first light beam (120). The spot brightness of the first light beam (120) on a projection surface is consistent with the spot brightness of the second light beam (220) on the projection surface.
13. The luminaire of claim 1 having different divergence angle light sources, wherein, A third light source (300) is arranged between the first light source (100) and the second light source (200), and a third light collecting element (310) is arranged to collect light from each third light source (300). Each third light source (300) forms a third light beam (320) after passing through the third light collecting element (310). The third light beam (320) has a third divergence angle (γ) that is greater than the first divergence angle (α) of the first light beam (120) and less than the second divergence angle (β) of the second light beam (220).
14. The luminaire of claim 1 having different divergence angle light sources, wherein, A focusing driving motor is arranged to drive the first light collecting element (110) and / or the second light collecting element (210) to move along the light emitting direction.
15. A luminaire system characterized in that, The lamp has at least two lamp heads (410) arranged at intervals, and the interval is greater than 2 cm.
16. The luminaire system of claim 15, wherein, The light spots of the closest two second light beams (220) of two adjacent lamps on the projection surface are seamlessly connected.
17. The luminaire system of claim 15, wherein, The first light sources (100) and the second light sources (200) are arranged at equal intervals. The distance between the closest two second light sources (200) of two adjacent lamps is equal to the interval between the second light sources (200).