White-light high-brightness color-light stage lamp

Abstract

The utility model discloses a white light high-brightness color light stage lamp which comprises a lamp holder and a light source located in the lamp holder, light emitted by the light source is emitted from a light outlet of the lamp holder, and the light source comprises a substrate, a first light-emitting set used for generating color light and a second light-emitting set used for generating white light, the control of the first light-emitting group and the control of the second light-emitting group are mutually independent, the plurality of light-emitting units in the first light-emitting group comprise red light chips, green light chips and blue light chips which are mutually independently controlled, the plurality of light-emitting units in the second light-emitting group comprise main white light chips, and the power of the second light-emitting group is greater than or equal to 1 / 5 of the power of the first light-emitting group. The power is less than or equal to two times of that of the first light-emitting group. Therefore, the light source can utilize the first light-emitting group to mix color light and can also utilize the second light-emitting group to generate white light, the power of the second light-emitting group is limited, and the brightness of the white light finally emitted by the light source can be ensured to be sufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of stage lamps, and more specifically, to a colorful stage lamp with high brightness of white light. Background Art

[0002] At present, stage lights generally have a light source. Conventional light sources are divided into white light sources and color light sources, which are suitable for lamps with different needs. Each light-emitting unit of the color light source generally includes a red light chip, a green light chip and a blue light chip as a package as a whole. By controlling the brightness ratio of the red light chip, the green light chip and the blue light chip, the light-emitting unit can achieve mixing of light of any color, including white light. However, the color gamut of the mixed white light is incomplete and the display index is low. Some light-emitting units are further encapsulated with white light chips, so as to complete the color gamut of the white light emitted by the light-emitting unit and improve its display index. However, the white light mixed by these color light sources has low electro-optical conversion efficiency and limited brightness, and cannot reach the brightness of white light sources of the same power. Compared with the color light emitted by the color light source, the brightness of the mixed white light is also limited, and it cannot meet the requirements for the brightness of white light (generally, white light is required to be as bright as possible, and color light can be slightly darker). Therefore, the effect of the color light source emitting white light is not good. Utility Model Content

[0003] The utility model overcomes at least one defect of the prior art and provides a color stage light with high brightness of white light, which can realize a color light beam and a high-brightness white light beam, and has multiple uses with one light, which is quick and convenient.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a colorful stage light with high brightness of white light, comprising a lamp head and a light source located in the lamp head, the light emitted by the light source is emitted from the light outlet of the lamp head, the light source comprises a substrate and a first light-emitting group for generating colored light and a second light-emitting group for generating white light located on the substrate, the control of the first light-emitting group and the second light-emitting group are independent of each other, and the multiple light-emitting units in the first light-emitting group include red light chips, green light chips, and blue light chips that are independently controlled, the multiple light-emitting units in the second light-emitting group include a main white light chip, and the power of the second light-emitting group is greater than or equal to 1 / 5 of the power of the first light-emitting group and less than or equal to 2 times the power of the first light-emitting group.

[0005] The colorful stage light with high brightness of white light is achieved by adding the second light-emitting group for generating white light, which includes the main white light chip, on the basis of the first light-emitting group for emitting colored light, and the second light-emitting group is controlled independently from the first light-emitting group. In this way, the light source can use the red light chip, green light chip and blue light chip of the first light-emitting group to mix colored light, and can also use the main white light chip of the second light-emitting group to generate white light. In addition, the power of the second light-emitting group is greater than or equal to 1 / 5 of the power of the first light-emitting group and less than or equal to 2 times the power of the first light-emitting group, thereby ensuring that the brightness of the white light finally emitted by the light source is sufficient.

[0006] Furthermore, the power of the second light-emitting group is greater than or equal to 1 / 3 of the power of the first light-emitting group and less than or equal to 1.5 times the power of the first light-emitting group. The brightness difference between the white light and the color light finally emitted by the light source is limited to a reasonable range, so that the light source can work normally regardless of whether it emits white light or color light, under the premise that the heat dissipation system of the stage light remains unchanged.

[0007] Furthermore, the plurality of light-emitting units in the first light-emitting group and the plurality of light-emitting units in the second light-emitting group are evenly distributed on the substrate, so that no matter whether the first light-emitting group or the second light-emitting group emits light, the light beam emitted by the light source will be relatively uniform, and there will be no partial dark or bright situation.

[0008] Furthermore, the focal length of the light source is less than or equal to 30 mm, so as to control the focal length of the light source within a smaller range and compress the length of the stage lighting optical system.

[0009] Furthermore, it also includes a collimating lens for collimating the light of the light-emitting units in the first light-emitting group and the second light-emitting group, and a condensing lens for converging the light after the collimation of the collimating lens, and the collimating lens has a plurality of collimating lenses. Each of the collimating lenses collimates the light diverged by the light-emitting unit into a small beam of parallel light, and the condensing lens converges all the small beams of parallel light into a large beam of convergent light with a focus.

[0010] Furthermore, the collimating lens is fixed relative to the substrate, and the collimating lens corresponds to each light-emitting unit in the first light-emitting group and the second light-emitting group one by one. In this way, the first light-emitting group and the second light-emitting group can be collimated at the same time without moving the collimating lens or the substrate, which has a simple structure and stable performance.

[0011] Furthermore, the collimating lens and the substrate can move relative to each other, so that the collimating lens can selectively collimate the light of the light-emitting units in the first light-emitting group or the second light-emitting group. This can reduce the number of collimating lenses on the collimating lens, reduce the area of ​​the collimating lens, and facilitate miniaturization of the light source.

[0012] Furthermore, the light-emitting units in the first light-emitting group and the second light-emitting group are arranged in a row and spaced apart from each other, so that when the collimating lens and the substrate move relative to each other for a certain distance, the collimating lens can switch between the two states of collimating the first light-emitting group and collimating the second light-emitting group.

[0013] Furthermore, the light-emitting unit in the first light-emitting group further includes an auxiliary white light chip which is independently controlled from the red light chip, the green light chip and the blue light chip. The auxiliary white light chip can emit low-brightness white light to improve the display index / color temperature or enhance the overall white light of the light source.

[0014] Furthermore, each of the light-emitting units in the first light-emitting group includes at least one red light chip, at least one green light chip and at least one blue light chip, that is, each light-emitting unit in the first light-emitting group can complete color mixing independently, which is beneficial to the uniformity of light beam color.

[0015] Furthermore, each light-emitting unit in the first light-emitting group includes one of a red light chip, a green light chip or a blue light chip, that is, each light-emitting unit can only emit one color, which is convenient for maximizing the power of the light-emitting unit and simplifies the circuit arrangement.

[0016] Furthermore, the lamp head is also provided with a focusing lens and a magnifying lens movable along the optical path, and the light emitted by the light source passes through the focusing lens and the magnifying lens in sequence and then is emitted from the light outlet. The focusing lens and the magnifying lens respectively adjust and magnify the light spot projected by the light beam.

[0017] Furthermore, it also includes an arm for supporting the rotation of the lamp head and a chassis for supporting the rotation of the arm. Through the arm and the chassis, the light beam emitted by the lamp head can be projected in any direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the stage lamp of the utility model.

[0019] Figure 2 It is a schematic diagram of the principle structure of the light source of the utility model.

[0020] Figure 3 It is a schematic diagram of the arrangement structure of the first light-emitting group and the second light-emitting group in the first embodiment of the utility model.

[0021] Figure 4 It is a schematic diagram of the arrangement structure of the first light-emitting group and the second light-emitting group in the second embodiment of the utility model.

[0022] Figure 5 It is a schematic diagram of the arrangement structure of the first light-emitting group and the second light-emitting group in the third embodiment of the utility model.

[0023] In the figure:

[0024] 100. Lamp holder; 110. Light outlet; 120. Focusing lens; 130. Magnifying glass; 140. Pattern plate; 150. Fire plate; 200. Light source; 210. Base plate; 220. First light-emitting group; 221. Red light chip; 222. Green light chip; 223. Blue light chip; 224. Auxiliary white light chip; 230. Second light-emitting group; 231. Main white light chip; 240. Collimating lens; 241. Collimating lens; 250. Condensing lens; 260. Driving mechanism; 300. Arm; 400. Chassis. DETAILED DESCRIPTION

[0025] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0026] like Figures 1 to 5 The utility model provides a colorful stage light with high brightness of white light, comprising a lamp head 100 and a light source 200 located in the lamp head 100, the light emitted by the light source 200 is emitted from the light outlet 110 of the lamp head 100, the light source 200 comprises a substrate 210 and a first light-emitting group 220 for generating colorful light and a second light-emitting group 230 for generating white light located on the substrate 210, the control of the first light-emitting group 220 and the second light-emitting group 230 are independent of each other, and the multiple light-emitting units in the first light-emitting group 220 include a red light chip 221, a green light chip 222, and a blue light chip 223 that are independently controlled, the multiple light-emitting units in the second light-emitting group 230 include a main white light chip 231, and the power of the second light-emitting group 230 is greater than or equal to 1 / 5 of the power of the first light-emitting group 220 and less than or equal to 2 times the power of the first light-emitting group 220.

[0027] The colorful stage light with highlighted white light is provided by adding the second light-emitting group 230 for generating white light including the main white light chip 231 on the basis of the first light-emitting group 220 for emitting colored light, and the second light-emitting group 230 is controlled independently from the first light-emitting group 220, so that the light source 200 can use the red light chip 221, the green light chip 222, and the blue light chip 223 of the first light-emitting group 220 to mix colored light, and can also use the main white light chip 231 of the second light-emitting group 230 to generate white light, and the power of the second light-emitting group 230 is greater than or equal to 1 / 5 of the power of the first light-emitting group 220, and less than or equal to 2 times the power of the first light-emitting group 220, which can ensure that the brightness of the white light finally emitted by the light source 200 is sufficient.

[0028] Optionally, when the second light-emitting group 230 emits white light, the red light chip 221 , the green light chip 222 , and the blue light chip 223 of the first light-emitting group 220 may also mix out white light, and cooperate with the second light-emitting group 230 to improve the overall white light brightness of the light source 200 .

[0029] Preferably, chips of the same color are uniformly controlled by the same circuit.

[0030] In a preferred embodiment of the utility model, the power of the second light-emitting group 230 is greater than or equal to 1 / 3 of the power of the first light-emitting group 220, and less than or equal to 1.5 times the power of the first light-emitting group 220. The brightness difference between the white light and the color light finally emitted by the light source 200 is limited to a reasonable range, so that under the premise that the heat dissipation system of the stage light remains unchanged, it is ensured that the light source 200 can work normally regardless of emitting white light or color light.

[0031] Preferably, the power of the second light-emitting group 230 is greater than or equal to 2 / 3 of the power of the first light-emitting group 220, and less than or equal to the power of the first light-emitting group 220. The white light brightness of the second light-emitting group 230 is ensured to be sufficient.

[0032] In a preferred embodiment of the present invention, the plurality of light-emitting units in the first light-emitting group 220 and the plurality of light-emitting units in the second light-emitting group 230 are evenly distributed on the substrate 210. In this way, no matter whether the first light-emitting group 220 or the second light-emitting group 230 emits light, the light beams emitted by the light source 200 will be relatively uniform, and there will be no partial over-darkness or over-brightness.

[0033] Optionally, all the light-emitting units in the light source 200 may be uniformly distributed on the substrate 210 as a whole, or may be non-uniformly distributed on the substrate 210 .

[0034] In a preferred embodiment of the present invention, the focal length of the light source 200 is less than or equal to 30 mm, so as to control the focal length of the light source 200 within a smaller range and compress the length of the stage lighting optical system.

[0035] Optionally, only the pattern plate 140 and / or the fire plate 150 are arranged within the focal length of the light source 200, without the CMY components and the color plate.

[0036] In a preferred embodiment of the utility model, a collimating lens 240 for collimating the light of the light-emitting units in the first light-emitting group 220 and the second light-emitting group 230 and a condensing lens 250 for converging the light after the collimation of the collimating lens 240 are included, and the collimating lens 240 has a plurality of collimating lenses 241. Each of the collimating lenses 241 collimates the light diverged by the light-emitting unit into a small beam of parallel light, and the condensing lens 250 converges all the small beams of parallel light into a large beam of convergent light with a focus.

[0037] Optionally, the collimating lens 240 and the focusing lens 250 can be fixed to the substrate 210 so that the entire light source 200 forms a whole, or they can be fixed to other components and separated from the substrate 210 so that they can be disassembled and assembled without affecting each other.

[0038] Preferably, the collimating lens 241 corresponding to each of the light-emitting units may include a lens, or may be two lenses stacked up and down (eg, Figure 2 ).

[0039] In a preferred embodiment of the utility model, the collimating lens 240 is fixed relative to the substrate 210 (not shown), and the collimating lens 241 corresponds to each light-emitting unit in the first light-emitting group 220 and the second light-emitting group 230. That is, the collimating lens 240 and the substrate 210 will not move relative to each other, and the collimating lens 241 corresponds to the light-emitting unit one by one, so that the first light-emitting group 220 and the second light-emitting group 230 can be collimated at the same time without moving the collimating lens 240 or the substrate 210, which has a simple structure and stable performance.

[0040] In a preferred embodiment of the present invention, the collimating lens 240 and the substrate 210 can move relative to each other (eg Figure 2 ), so that the collimating lens 241 selectively collimates the light of the light-emitting units in the first light-emitting group 220 or the second light-emitting group 230. In this way, the number of the collimating lenses 241 on the collimating lens 240 can be reduced, and the area of ​​the collimating lens 240 can be reduced, which is conducive to the miniaturization of the light source 200.

[0041] It should be noted that when the collimating lens 241 collimates one of the first light-emitting group 220 or the second light-emitting group 230, the other light can also emit light and be collected by the collimating lens 241 to improve the overall brightness of the light source 200, that is, the light-emitting units of the first light-emitting group 220 and the second light-emitting group 230 are very close. In other embodiments, when the collimating lens 241 collimates one of the first light-emitting group 220 or the second light-emitting group 230, the light emitted by the other light cannot be collected, or only the stray light with a very low proportion can be collected, that is, the light-emitting units of the first light-emitting group 220 and the second light-emitting group 230 are far apart.

[0042] The relative movement may refer to the movement of the collimating lens 240 or the movement of the substrate 210 , which may be translation, rotation or swing. During rotation or swing, the axis may be perpendicular to the substrate 210 or parallel to the substrate 210 .

[0043] Figure 2 In FIG. 2 , the collimating lens 240 is translated by using a driving mechanism 260 .

[0044] like Figure 3 , Figure 5 In a preferred embodiment of the utility model, the light-emitting units in the first light-emitting group 220 and the second light-emitting group 230 are arranged in a row, and the two are arranged at intervals. In this way, when the collimating lens 240 and the substrate 210 move relative to each other for a certain distance, the collimating lens 241 can be switched between the two states of collimating the first light-emitting group 220 and collimating the second light-emitting group 230.

[0045] Optionally, the light emitting units in the first light emitting group 220 and the second light emitting group 230 may be arranged in a row and spaced apart along a straight line (eg Figure 3 , Figure 5 ), or may be arranged in a row along a ring-shaped interval (not shown), corresponding to the translation and rotation of the collimating lens 240 relative to the substrate 210 respectively.

[0046] In a preferred embodiment of the present invention, the light-emitting unit in the first light-emitting group 220 further includes an auxiliary white light chip 224 (such as Figure 5 The auxiliary white light chip 224 can emit low-brightness white light to improve the display index / color temperature, or enhance the overall white light brightness of the light source 200.

[0047] Optionally, the white light emitted by the auxiliary white light chip 224 can cooperate with the white light mixed by the red light chip 221, the green light chip 222, and the blue light chip 223, or can cooperate with the white light emitted by the second light-emitting group 230 to improve the overall white light brightness or rendering index of the light source 200.

[0048] In a preferred embodiment of the present invention, each of the light-emitting units in the first light-emitting group 220 includes at least one red light chip 221, at least one green light chip 222 and at least one blue light chip 223 (such as Figure 5 ). That is, each light-emitting unit in the first light-emitting group 220 can complete color mixing independently, which is beneficial to the uniformity of the light beam color.

[0049] In a preferred embodiment of the present invention, each light-emitting unit in the first light-emitting group 220 includes one of a red light chip 221, a green light chip 222 or a blue light chip 223 (e.g. Figure 3 , Figure 4 ). That is, each of the light-emitting units can only emit one color, which is convenient for maximizing the power of the light-emitting unit and simplifies the circuit arrangement.

[0050] Optionally, each of the light-emitting units in the second light-emitting group 230 may include one main white light chip 231 (eg, Figure 3 , Figure 4 ), or multiple (such as Figure 5 ), for example 4.

[0051] In this embodiment, each of the light-emitting units in the first light-emitting group 220 includes a red light chip 221, a green light chip 222, a blue light chip 223 and an auxiliary white light chip 224. Each of the light-emitting units in the second light-emitting group 230 includes four main white light chips 231 (such as Figure 5 ).

[0052] like Figure 1 In a preferred embodiment of the utility model, the lamp head 100 is further provided with a focusing lens 120 and a magnifying lens 130 that can move along the optical path. The light emitted by the light source 200 passes through the focusing lens 120 and the magnifying lens 130 in sequence and then is emitted from the light outlet 110. The focusing lens 120 and the magnifying lens 130 are used to respectively adjust and magnify the light spot projected by the light beam.

[0053] In a preferred embodiment of the utility model, an arm 300 for supporting the rotation of the lamp head 100 and a chassis 400 for supporting the rotation of the arm 300 are also included. Through the arm 300 and the chassis 400, the light beam emitted by the lamp head 100 can be projected in any direction.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A colorful stage light with high brightness of white light, characterized in that: The invention comprises a lamp holder (100) and a light source (200) located in the lamp holder (100), wherein light emitted by the light source (200) is emitted from a light outlet (110) of the lamp holder (100), wherein the light source (200) comprises a substrate (210) and a first light-emitting group (220) for generating colored light and a second light-emitting group (230) for generating white light located on the substrate (210), wherein the first light-emitting group (220) and the second light-emitting group (230) are controlled independently of each other, and a plurality of light-emitting units in the first light-emitting group (220) comprise a red light chip (221), a green light chip (222), and a blue light chip (223) that are independently controlled from each other, wherein a plurality of light-emitting units in the second light-emitting group (230) comprise a main white light chip (231), and a power of the second light-emitting group (230) is greater than or equal to 1 / 5 of a power of the first light-emitting group (220) and less than or equal to twice a power of the first light-emitting group (220).

2. The colorful stage light with high brightness of white light according to claim 1, characterized in that: The power of the second light-emitting group (230) is greater than or equal to 1 / 3 of the power of the first light-emitting group (220), and less than or equal to 1.5 times the power of the first light-emitting group (220).

3. The colorful stage light with high brightness of white light according to claim 1, characterized in that: The plurality of light-emitting units in the first light-emitting group (220) and the plurality of light-emitting units in the second light-emitting group (230) are respectively and evenly distributed on the substrate (210).

4. The colorful stage light with high brightness of white light according to claim 1, characterized in that: The focal length of the light source (200) is less than or equal to 30 mm.

5. The colorful stage light with high brightness of white light according to claim 1, characterized in that: It also includes a collimating lens (240) for collimating the light of the light-emitting units in the first light-emitting group (220) and the second light-emitting group (230), and a condensing lens (250) for converging the light collimated by the collimating lens (240), wherein the collimating lens (240) has a plurality of collimating lenses (241).

6. The colorful stage light with high brightness of white light according to claim 5, characterized in that: The collimating lens (240) is fixed in position relative to the substrate (210), and the collimating lens (241) corresponds one-to-one to each light-emitting unit in the first light-emitting group (220) and the second light-emitting group (230).

7. The colorful stage light with high brightness of white light according to claim 5, characterized in that: The collimating lens (240) and the substrate (210) are relatively movable, so that the collimating lens (241) selectively collimates the light of the light-emitting units in the first light-emitting group (220) or the second light-emitting group (230).

8. The color stage light with high brightness of white light according to claim 7, characterized in that: The light-emitting units in the first light-emitting group (220) and the second light-emitting group (230) are arranged in a row, and the two are arranged at intervals.

9. The colorful stage light with high brightness of white light according to claim 1, characterized in that: The light-emitting unit in the first light-emitting group (220) further comprises an auxiliary white light chip (224) which is independently controlled from the red light chip (221), the green light chip (222) and the blue light chip (223).

10. The colorful stage light with high brightness of white light according to claim 1, characterized in that: Each of the light-emitting units in the first light-emitting group (220) comprises at least one red light chip (221), at least one green light chip (222) and at least one blue light chip (223).

11. The colorful stage light with high brightness of white light according to claim 1, characterized in that: Each light-emitting unit in the first light-emitting group (220) comprises one of a red light chip (221), a green light chip (222) or a blue light chip (223).

12. The colorful stage light with high brightness of white light according to claim 1, characterized in that: A focusing lens (120) and a magnifying lens (130) movable along the light path are also provided in the lamp head (100); the light emitted by the light source (200) passes through the focusing lens (120) and the magnifying lens (130) in sequence and then is emitted from the light outlet (110).

13. The colorful stage light with high brightness of white light according to claim 1, characterized in that: It also includes an arm (300) for supporting the lamp head (100) to rotate, and a chassis (400) for supporting the arm (300) to rotate.

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