LED lamp bead with mixed light-emitting function

Abstract

The application provides a LED lamp bead with mixed light emitting function, which comprises a cylindrical shell, the tail end of the shell is closed by a tail cover, the central part of the tail cover is rotationally provided with light sources which are arranged at intervals between cold light sources and warm light sources, the top end of the light sources is communicated to a reflecting bowl, a grid-shaped shielding coating is arranged between the reflecting bowl and the light sources, the top of the reflecting bowl is sleeved with a focusing cylinder, a driving element on one side of the shell drives the shell to slide along the axial direction, meanwhile, the driving element is in transmission connection with the light sources to drive the circumferential angle of the light sources, the light sources are arranged at intervals between cold light sources and warm light sources, and the grid-shaped shielding layer is matched, the distance difference between adjacent cold light sources and warm light sources and the grid-shaped shielding layer is adjusted, the shielding proportion of the cold light sources and the warm light sources is distributed to adjust the color temperature, the angle of the light sources is mechanically synchronized with the adjustment of the focusing cylinder, and then the stable linkage is realized, the color temperature illusion caused by brightness is compensated, more accurate light control is realized, and the LED lamp bead has a good development prospect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of LED lighting, in particular to a LED lamp bead with mixed light emitting function. BACKGROUND

[0002] The existing light source is usually composed of LED lamp core and lens mixed with fluorescent powder, and its light emitting principle is to emit blue light by using blue light LED lamp core, and to obtain mixed light similar to white light by exciting yellow fluorescent powder when the blue light passes through the lens, which is widely used in indoor and outdoor lighting, backlight and many other fields.

[0003] However, in some specific application scenarios, such as stage lights, there are some special requirements, such as zoom adjustment effect of lighting. With the focusing of light, the difference between the brightness of the corresponding central lighting position and the brightness of the edge position becomes larger, which will cause the color contrast effect to enhance visually, although the actual color temperature does not change, but it is similar to the effect of color temperature change, thereby affecting the stage effect.

[0004] Therefore, a LED lamp bead with mixed light emitting function is needed to compensate for the visual effect by synchronously adjusting the color temperature during zooming to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a LED lamp bead with mixed light emitting function.

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] A LED lamp bead with mixed light emitting function, comprising a cylindrical shell, the tail end of the shell is closed by a tail cover, a cold and warm light source is arranged in the central rotation of the tail cover, the top end of the light emitting source is communicated to a reflector bowl, a grid-shaped shielding coating is arranged between the reflector bowl and the light emitting source, a focusing barrel is sleeved with the shell at the top of the reflector bowl, and the driving element on one side of the shell drives the shell to slide along the axial direction, and the driving element and the light emitting source are in transmission connection to drive the circumferential angle of the light emitting source.

[0008] As a further scheme of the present application: the focusing barrel comprises a shell, a lens and a top cover, the lens is buckled and fixed at the front end of the shell through the top cover connected with the shell, and a clamping groove is recessed at the front end of the top cover for placing a color sheet.

[0009] As a further scheme of the present application: a columnar light guide column is connected between the light emitting source and the reflector bowl, the light guide column is inserted into the bottom center of the reflector bowl, and the side surface of the light guide column is mirror coated.

[0010] As a further scheme of the present application: the bottom edge of the light guide column is chamfered, the chamfered bottom surface is mirror-coated, and the chamfered edge is grid-coated, and the light emitting point on the light source is arranged corresponding to the grid.

[0011] As a further scheme of the present application: the light emitting point on the light source is recessed, and the light emitting point is arranged in the recess.

[0012] As a further scheme of the present application: the surface of the recess is also mirror-coated.

[0013] As a further scheme of the present application: the driving member includes a driving motor, a driving shaft and a reduction shaft, the driving motor is fixed on the outside of the shell, the output end is connected with the threaded driving shaft, the front end of the driving shaft is in threaded transmission connection with the focusing barrel, the reduction shaft is rotatably arranged on the inside of the shell, and the two ends of the reduction shaft are in angular transmission connection with the driving shaft and the light source.

[0014] As a further scheme of the present application: the light source and the reduction shaft are indirectly driven through a clutch member, the clutch member is controlled by an electric control push rod fixed on the bottom of the tail cover to realize the contact or separation of the light source and the reduction shaft to achieve the connection or disconnection of the transmission of the light source and the reduction shaft.

[0015] As a further scheme of the present application: an independent motor is mounted in the center of the bottom cover and is in transmission connection with the light source. Advantages

[0016] 1. The central part of the tail cover is rotatably provided with light sources arranged at intervals of cold and warm light sources, the top end of the light source is connected to the reflector bowl, and a grid-shaped shielding coating is arranged between the reflector bowl and the light source.

[0017] 2. The light source is connected with a columnar light guide column between the light source and the reflector bowl, the light guide column is inserted into the bottom center of the reflector bowl, the bottom edge of the light guide column is chamfered, the side surface of the light guide column and the chamfered bottom surface are mirror-coated, the chamfered edge is grid-coated, and the light emitting point on the light source is arranged corresponding to the grid.

[0018] 3. The light source of the present application is indirectly driven by the clutch element, the clutch element is controlled by the electric control push rod fixed at the bottom of the tail cover, the contact or separation of the light source and the reduction shaft is realized to achieve the connection or disconnection of the transmission of the light source and the reduction shaft, and then the free selection of the linkage or disconnection state of the zoom and color temperature adjustment can be realized, and different requirements can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure of the present application.

[0020] Figure 2 It is the overall structure of the present application.

[0021] Figure 3 It is the main structure of the present application.

[0022] Figure 4 It is the light guide column installation diagram of the present application.

[0023] Figure 5 It is the light guide column light inlet position diagram of the present application.

[0024] Figure 6 It is the light source structure diagram of the present application.

[0025] Figure 7 It is the drive element structure diagram of the present application.

[0026] Figure 8 It is the light source angle drive diagram of the present application.

[0027] Figures 1-8 M: 1, shell; 2, tail cover; 3, light source; 4, light guide column; 5, reflector bowl; 6, focusing barrel; 61, shell; 62, lens; 63, top cover; 7, drive element; 71, drive motor; 72, drive shaft; 73, reduction shaft; 74, clutch element; 75, electric control push rod; 8, independent motor. DETAILED DESCRIPTION

[0028] The specific technical solutions of the present application will be described below in conjunction with the drawings in the specification of the present application Figures 1-8 , the specific technical solutions of the present application will be described below in conjunction with the drawings in the specification of the present application

[0029] Please refer to Figures 1-8 , Figure 1 It is the overall structure diagram of the embodiment of the present application; Figure 2 It is the overall structure diagram of the present application; Figure 3 It is the main structure of the present application. Figure 4 It is the light guide column installation diagram of the present application. Figure 5 It is the light guide column light inlet position diagram of the present application. Figure 6 It is the light source structure diagram of the present application.Figure 7 A schematic diagram of the driving member structure of the present application; Figure 8 A schematic diagram of the angle driving of the light emitting source of the present application.

[0030] The LED lamp bead with mixed light emitting function provided by the embodiment comprises a cylindrical shell 1, the tail end of the shell 1 is closed by a tail cover 2, the central part of the tail cover 2 is rotatably provided with light emitting sources 3 arranged at intervals between cold light sources and warm light sources, the top end of the light emitting source 3 is connected to a reflecting bowl 5, a grid-shaped shielding coating is arranged between the reflecting bowl 5 and the light emitting source 3, a focusing cylinder 6 is sleeved with the shell 1 at the top of the reflecting bowl 5, a driving member 7 on one side of the shell 1 drives the shell 1 to slide along the axial direction, and the driving member 7 is in transmission connection with the light emitting source 3 to drive the light emitting source 3 to rotate around the circumference.

[0031] The light emitting source 3 is arranged at intervals between cold light sources and warm light sources, and the grid-shaped shielding layer is matched, the distance difference between adjacent cold light sources and warm light sources to the grid-shaped shielding layer is adjusted, the shielding proportion of the cold light sources and the warm light sources is adjusted to realize the adjustment of the color temperature of the cold light sources and the warm light sources, the angle of the light emitting source 3 is mechanically synchronized with the adjustment of the focusing cylinder 6, and then the stable linkage is realized, the color temperature illusion caused by the brightness is compensated, and more accurate light control is realized.

[0032] The focusing cylinder 6 comprises a shell 61, a lens 62 and a top cover 63, the lens 62 is buckled and fixed at the front end of the shell 61 through the top cover 63 connected with the shell 61, and a clamping groove is recessed at the front end of the top cover 63 for placing a color chip to change the color of light.

[0033] The light emitting source 3 is connected with the reflecting bowl 5 through a columnar light guide column 4, the light guide column 4 is inserted into the bottom center of the reflecting bowl 5, the bottom edge of the light guide column 4 is treated as an inverted right angle, the side surface of the light guide column 4 and the inverted angle bottom surface are treated as a mirror coating spraying treatment, and the inverted angle edge is treated as a grid-shaped mirror coating spraying treatment, and the light emitting point of the light emitting source 3 is arranged corresponding to the grid;

[0034] Through the arrangement of the light guide column 4, the light source emits at a certain oblique angle, the light is reflected in the light guide column 4, the light of different color temperatures is mixed, and the uniformity is improved.

[0035] Further, the light emitting point of the light emitting source 3 is treated as a groove, the light emitting point is arranged in the groove, and the surface of the groove is also treated as a mirror coating spraying treatment, so that the light entering the light emitting source 3 through the grid window after passing through the light guide column 4 is reflected again to enter the light guide column 4, and the loss is reduced.

[0036] The driving member 7 comprises a driving motor 71, a driving shaft 72 and a speed reduction shaft 73. The driving motor 71 is fixed on the outside of the shell 1, and the output end is connected with the threaded driving shaft 72. The front end of the driving shaft 72 is in threaded transmission connection with the focusing barrel 6. The speed reduction shaft 73 is rotationally arranged on the inside of the shell 1. The two ends of the speed reduction shaft 73 are in angular transmission connection with the driving shaft 72 and the light emitting source 3, respectively. The speed reduction shaft 73 is arranged to realize speed reduction transmission, thereby ensuring the angular fine adjustment of the grid-shaped light source and realizing the adjustment of the color temperature.

[0037] Specifically, the light emitting source 3 is indirectly driven by the speed reduction shaft 73 through the clutch 74. The clutch 74 is controlled by the electric control push rod 75 fixed on the bottom of the tail cover 2 to realize the contact or separation of the light emitting source 3 and the speed reduction shaft 73, so as to realize the connection or disconnection of the transmission between the light emitting source 3 and the speed reduction shaft 73. Thus, the linkage or disconnection state of the zoom and the color temperature adjustment can be freely selected to realize different requirements.

[0038] Further, the independent motor 8 is mounted on the bottom cover and is in transmission connection with the light emitting source 3, so as to realize the independent angular driving of the light emitting source 3, the individual adjustment of the color temperature and more lighting requirements.

[0039] When the lighting device is focused, the driving shaft 72 is driven to rotate by the driving motor 71. The focusing barrel 6 is driven to axially project along the shell 1 through the threaded structure to focus the light. Meanwhile, the light emitting source 3 is driven to rotate by a small angle through the speed reduction shaft 73, so that the distance difference of the cold and warm light sources spacedly arranged on the light emitting source 3 to the grid shielding place is generated. The adjustment of the shielding proportion of the cold and warm light sources is realized to adjust the cold and warm color temperatures. The color temperature illusion caused by the brightness is compensated to realize more accurate light control.

Claims

1. A LED lamp bead with mixed light-emitting function, characterized in that, Include: The shell (1) is cylindrical, and the tail end of the shell (1) is closed by a tail cover (2); The light-emitting source (3) is arranged in the central rotation of the tail cover (2), and the light-emitting source (3) is arranged in the central rotation of the tail cover (2). The light-emitting source (3) is connected to the top of the light-emitting source (3). The light-emitting source (3) is provided with a grid-shaped shielding coating between the light-emitting source (3) and the light-emitting source (3). The focusing barrel (6) is provided with a focusing barrel (6) at the top of the light-emitting source (3). The focusing barrel (6) is connected to the shell (1). The drive member (7) is driven along the axial direction of the shell (1) by the drive member (7) on one side of the shell (1), and the drive member (7) is in transmission connection with the light-emitting source (3) to drive the circumferential angle of the light-emitting source (3). The drive member (7) includes a drive motor (71), a drive shaft (72) and a speed reduction shaft (73). The drive motor (71) is fixed on the outside of the shell (1), and the output end is connected with the threaded drive shaft (72). The drive shaft (72) is in threaded transmission connection with the front end of the focusing barrel (6). The inside of the shell (1) is rotatably provided with a speed reduction shaft (73), and the two ends of the speed reduction shaft (73) are respectively in angular transmission connection with the drive shaft (72) and the light-emitting source (3). The light-emitting source (3) and the light-emitting source (3) are connected with the light-emitting source (3). The light-emitting source (3) is inserted into the bottom center of the light-emitting source (3). The side surface of the light-emitting source (4) is mirror coated and sprayed. The bottom edge of the light-emitting source (4) is chamfered, the chamfered bottom is mirror coated and sprayed, the chamfered edge is grid-shaped mirror coated and sprayed, and the light-emitting point of the light-emitting source (3) is arranged corresponding to the grid.

2. The LED lamp bead with mixed light-emitting function according to claim 1, characterized in that: The focusing barrel (6) includes a shell (61), a lens (62) and a top cover (63). The lens (62) is fixed on the front end of the shell (61) by the top cover (63) connected with the shell (61). The front end of the top cover (63) is recessed with a clamping groove for placing a color sheet.

3. The LED lamp bead with mixed light-emitting function according to claim 1, characterized in that: The light-emitting point of the light-emitting source (3) is recessed, and the light-emitting point is arranged in the recess.

4. The LED lamp bead with mixed light-emitting function according to claim 3, characterized in that: The surface of the recess is also mirror coated and sprayed.

5. The LED lamp bead with mixed light-emitting function according to claim 1, characterized in that: The light-emitting source (3) and the speed reduction shaft (73) are indirectly connected by the clutch (74). The clutch (74) is controlled by the electric control push rod (75) fixed at the bottom of the tail cover (2) to contact or separate the light-emitting source (3) and the speed reduction shaft (73), so as to realize the connection or disconnection of the transmission between the light-emitting source (3) and the speed reduction shaft (73).

6. The LED lamp bead with mixed light-emitting function according to claim 5, characterized in that: The tail cover (2) is provided with an independent motor (8) at the bottom center and is in transmission connection with the light-emitting source (3).

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