Illuminating device of stage lamp
By coating the lens unit of the stage lamp to prevent the excitation of blue light on the phosphor by blue light, the problem of poor light efficiency caused by the influence of blue light in the prior art is solved, and a more uniform and pure lighting effect is achieved.
Patent Information
- Application Number
- CN202420924642.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing stage lighting effects are affected by the excitation efficiency of blue light on the phosphor, resulting in poor spot uniformity, low color purity and dull color.
The lens unit with a coating layer is integrated with the LED lamp bead unit. The coating layer allows a single color of light to pass through to prevent the influence of other color of light. For example, the coating layer of the blue LED lamp bead unit only allows blue light to pass through to prevent phosphor Being inspired.
Effectively prevent the phosphor from being excited, improves the light effect, and ensures the uniformity of the spot and the color purity.
Smart Images
Figure CN222278342U_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of lighting, and in particular to a lighting device for a stage lamp. Background Art
[0002] Existing stage lighting effects are generally composed of a mixture of LED lamp beads of various colors, including red, green, blue, amber, cyan, light green, etc. Some LED lamp beads have phosphors, and the wavelength of blue light is very close to the excitation wavelength of many types of phosphors. When the blue LED lamp beads are lit, the blue light will affect the excitation efficiency of the phosphors. The stronger the blue light intensity, the stronger the luminous intensity of the excited phosphors. Conversely, reducing the blue light intensity will weaken the luminous intensity of the phosphors. Therefore, the problem we face is that when blue light is irradiated alone or blue light is mixed with other color lights without phosphors, the LED lamp beads with phosphors will be affected by the adjacent blue light or the reflected blue light, causing the phosphors to be excited, which in turn causes the lighting effect of blue light alone or the light efficiency of blue light and other color lights without phosphors to be poor, for example, poor spot uniformity, low color purity, dim color and other defects. Summary of the invention
[0003] The present invention is to solve one of the above technical problems and provide a lighting device that can effectively block blue light to prevent the fluorescent powder from being excited.
[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:
[0005] A lighting device for a stage light comprises a light source array and a lens group, wherein the light source array is mainly composed of LED lamp bead units of various colors, and the lens group comprises a plurality of first lens units, the surface of the first lens units has a coating layer, each coating layer corresponds to an associated LED lamp bead unit and allows the emitted light of the associated LED lamp bead unit to pass through, and the first lens unit is integrally packaged with the corresponding LED lamp bead unit.
[0006] As a preferred embodiment, it is further defined that the surface of the first lens unit is the outer surface or the inner surface or the inner and outer surfaces of the first lens unit.
[0007] As a preferred implementation manner, it is further defined that the lens group includes a plurality of second lens units, and the second lens units correspond to the first lens units one by one.
[0008] As a preferred embodiment, it is further defined that the lens group includes a fly-eye lens, and the light from the light source array passes through the first lens unit, the second lens unit and the fly-eye lens in sequence and then is emitted.
[0009] As a preferred embodiment, it is further defined that the multiple color LED lamp bead units include a red LED lamp bead unit (R), a green LED lamp bead unit (G), a blue LED lamp bead unit (B), a cyan LED lamp bead unit (C), an amber LED lamp bead unit (A) and a light green LED lamp bead unit (M).
[0010] After adopting the above technical solution, the invention has at least the following beneficial effects: the surface of the first lens unit has a coating layer, each coating layer corresponds to the associated LED lamp bead unit and allows the emitted light of the associated LED lamp bead unit to pass through, and the first lens unit is integrally packaged with the corresponding LED lamp bead unit; this effectively prevents a single color of light from being affected by other colors of light, thereby achieving the best lighting effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a structural diagram of a lighting device;
[0012] Figure 2 It is a structural diagram of the light source array. DETAILED DESCRIPTION
[0013] It should be noted that, in the absence of conflict, the embodiments in the present application and the features described in the embodiments may be combined with each other. The present application is further described in detail below in conjunction with the drawings and specific embodiments.
[0014] As attached Figure 1 and attached Figure 2As shown, a lighting device for a stage light includes a light source array 1 and a lens group 2. The light source array 1 is mainly composed of LED lamp bead units of various colors. The light source array 1 also includes a substrate. The LED lamp bead units of various colors are arranged on the substrate. The light source array 1 includes a red LED lamp bead unit (R), a green LED lamp bead unit (G), a blue LED lamp bead unit (B), a cyan LED lamp bead unit (C), an amber LED lamp bead unit (A) and a light green LED lamp bead unit (M). The lens group 2 includes a plurality of first lenses. The mirror unit 21, the surface of the first lens unit 21 has a coating layer 3, each coating layer 3 corresponds to the associated LED lamp bead unit, and allows the emission light of the associated LED lamp bead unit to pass through, and the first lens unit 21 is integrally packaged with the corresponding LED lamp bead unit; further explained, the surface of the first lens unit 21 corresponding to the red LED lamp bead unit (R) is coated with a coating layer 3 through which only red light passes, and the surface of the first lens unit 21 corresponding to the blue LED lamp bead unit (B) is coated with a coating layer 3 through which only blue light passes, and so on. The coating layer is a nano-thin film layer, and its material mainly includes metal oxides, silicon, titanium oxide, silicon dioxide, magnesium fluoride, etc.; the coating layer 3 can effectively prevent a single color of light from being affected by other colors of light. For example, when the blue LED lamp bead unit (B) is illuminated, the coating layer 3 on the other color lamp beads can effectively prevent the phosphor from being excited by the blue light, so that the best light effect can be effectively achieved.
[0015] The coating layer 3 can be selectively applied to different surface positions of the first lens unit 21 , and the coating layer 3 can be arranged on the outer surface or the inner surface or the inner and outer surfaces of the first lens unit 21 .
[0016] As attached Figure 1 As shown, the lens group 2 includes a plurality of second lens units 22, and the second lens units 22 correspond to the first lens units 21 one by one. The lens group 2 includes a fly-eye lens 23, and the light of the light source array 1 passes through the first lens unit 21, the second lens unit 22 and the fly-eye lens 23 in sequence and then is emitted.
[0017] In addition, it is necessary to further explain that in the prior art, the light source array 1 is collimated through the first lens array, the second lens array and the compound eye lens in sequence. Generally, the light source array 1 and the first lens array are arranged separately, and the several first lens units 21 created by the present invention are equivalent to the first lens array. The difference is that the several first lens units 21 are packaged into one with the LED lamp bead unit, which can better ensure the effective light path and is more convenient to assemble.
[0018] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various equivalent changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A stage lighting device, comprising a light source array (1) and a lens group (2), wherein the light source array (1) is mainly composed of LED lamp bead units of multiple colors, and the lens group (2) comprises a plurality of first lens units (21), characterized in that: The surface of the first lens unit (21) has a coating layer (3), each coating layer (3) corresponds to an associated LED lamp bead unit and allows emitted light of the associated LED lamp bead unit to pass through, and the first lens unit (21) is integrally packaged with the corresponding LED lamp bead unit.
2. The lighting device according to claim 1, characterized in that: The surface of the first lens unit (21) is the outer surface or the inner surface or the inner and outer surfaces of the first lens unit (21).
3. The lighting device according to claim 2, characterized in that: The lens group (2) comprises a plurality of second lens units (22), and the second lens units (22) correspond one-to-one to the first lens units (21).
4. The lighting device according to claim 3, characterized in that: The lens group (2) comprises a fly-eye lens (23), and the light from the light source array (1) passes through the first lens unit (21), the second lens unit (22) and the fly-eye lens (23) in sequence before being emitted.
5. The lighting device according to claim 1, characterized in that: The LED lamp bead units of various colors include a red LED lamp bead unit (R), a green LED lamp bead unit (G), a blue LED lamp bead unit (B), a cyan LED lamp bead unit (C), an amber LED lamp bead unit (A) and a light green LED lamp bead unit (M).